How much can SW starship armor take with shields down?

PSW: discuss Star Wars without "versus" arguments.

Moderator: Vympel

User avatar
takemeout_totheblack
Padawan Learner
Posts: 358
Joined: 2010-01-26 03:59pm
Location: Knowing where you are is no fun! Back to adventure!

Re: How much can SW starship armor take with shields down?

Post by takemeout_totheblack »

BLACKSUN2000 wrote:
If the calculation is correct, then that could be used as an extreme lower limit. BUT the AT-AT's in the empire strikes back shrugged off hits from snow speeder laser canons, if they're anything like tie fighter lasers, then their much thinner armor shrugged off 32000 tw.

ALSO the article on wookiepedia never said it was armor grade durasteel they were talking about.
Where did 32PW come from? Source?
Anyway, Wookiepedia states that there are only 2 types of durasteel, but each article is only a sentence long (figures, right?) Of course those two types could only be the types listed by the fanbase thus far, but each article is so sparse that they're essentially useless! Although, it's not unreasonable to assume one may be general use durasteel and the other high grade armor and utility durasteel.
There should be an official metric in regard to stupidity, so we can insult the imbeciles, morons, and RSAs out there the civilized way.
Any ideas for units of measure?

This could be the most one-sided fight since 1973 when Ali fought a 80-foot tall mechanical Joe Frazier. My memory isn't what it used to be, but I think the entire earth was destroyed.
~George Foreman, February 27th 3000 C.E.
User avatar
BLACKSUN2000
Youngling
Posts: 125
Joined: 2010-01-12 04:26am
Location: In the void, watching the world.

Re: How much can SW starship armor take with shields down?

Post by BLACKSUN2000 »

Where did 32PW come from? Source?
AOTC:ICS :roll:
Anyway, Wookiepedia states that there are only 2 types of durasteel
:wtf: Liar, wookiepedia says:"Durasteel was produced in various grades of heat treatment and alloy composition for different construction purposes. Some of these were:"

"9093-T7511 grade and 9095-T8511 grade", mentioned in the deathstar novel. They had different Durasteel, just like their are hundreds of different steel types IRL.

Again nowhere did it say that the "300,000x's stronger" was the armor grade stuff. Any figure derived would need to be labeled as a lower-end/conservative figure.
Even if I go to hell, I will live to the end of this world. And if the world does not come to an end... I will destroy it with my own hands!-Lacan

Yes, we will destroy god. That is our purpose... That is our destiny!-Grahf
User avatar
takemeout_totheblack
Padawan Learner
Posts: 358
Joined: 2010-01-26 03:59pm
Location: Knowing where you are is no fun! Back to adventure!

Re: How much can SW starship armor take with shields down?

Post by takemeout_totheblack »

BLACKSUN2000 wrote:
Where did 32PW come from? Source?
AOTC:ICS :roll:
I really need to get that book! It sounds fascinating!
:wtf: Liar, wookiepedia says:"Durasteel was produced in various grades of heat treatment and alloy composition for different construction purposes. Some of these were:"

"9093-T7511 grade and 9095-T8511 grade", mentioned in the deathstar novel. They had different Durasteel, just like their are hundreds of different steel types IRL.

Again nowhere did it say that the "300,000x's stronger" was the armor grade stuff. Any figure derived would need to be labeled as a lower-end/conservative figure.
I never said the stronger one was 300,000x, I just said that one of the listed types could be the armor grade and the other could be the general use stuff. In fact, it's more likely that the 300,000x is the general use material because it says something like 'because of [its strength] durasteel is used for [lots of stuff]' right after stating its properties. So it's not far fetched to assume that the armor grade stuff is stronger than the 300,000x. How much stronger would it be, though?
There should be an official metric in regard to stupidity, so we can insult the imbeciles, morons, and RSAs out there the civilized way.
Any ideas for units of measure?

This could be the most one-sided fight since 1973 when Ali fought a 80-foot tall mechanical Joe Frazier. My memory isn't what it used to be, but I think the entire earth was destroyed.
~George Foreman, February 27th 3000 C.E.
User avatar
Azron_Stoma
Padawan Learner
Posts: 353
Joined: 2008-10-18 08:37am
Location: HIMS Korthox III, Assertor Class Star Dreadnought

Re: How much can SW starship armor take with shields down?

Post by Azron_Stoma »

the 300,000x mark I believe was based on the stress the hull of the Executor would be under when turning.

I think 32,000tw is a typo, should be 32,000gw or 32tw, it's not directly from ATOC:ICS, but is scaled to Slave 1's lasers which are at 64 tw (8 tj per shot listed in the book, 480 rpm firing rate seen on screen, simple math to get 64 tw), TIE fighter blasters are possibly identical however (lower firing rate, but both barrels fire simultaneously) but the individual shot yield is unknown (10tj per shot for geonosian fighters, 4 tj per shot for Delta 7 guns that are split in 2, so possibly 8tj per gun pair), 32tw is used to be somewhat conservative.
User avatar
BLACKSUN2000
Youngling
Posts: 125
Joined: 2010-01-12 04:26am
Location: In the void, watching the world.

Re: How much can SW starship armor take with shields down?

Post by BLACKSUN2000 »

It looks like I fudged somthing up it's 32,000-64,000gw:oops:

I apologize.

Again, for the durasteel, using the 300,000x's stronger figure would have to be a lower end figure.
Even if I go to hell, I will live to the end of this world. And if the world does not come to an end... I will destroy it with my own hands!-Lacan

Yes, we will destroy god. That is our purpose... That is our destiny!-Grahf
User avatar
phongn
Rebel Leader
Posts: 18487
Joined: 2002-07-03 11:11pm

Re: How much can SW starship armor take with shields down?

Post by phongn »

Sea Skimmer wrote:But they may have seen no actual need for more features like that if the Death Star was already well enough armed to repel any likely fleet attack. Filling up all the space would increase the projects cost… but you already have a Death Star! The need for rapid construction might also dictate certain limitations. The thing is pretty damn good already; minus one design flaw so glaring it makes me suspect that Imperial designers inside the project had a conspiracy going on to have added it and kept it from being removed in design revisions.
According to the Death Star novel, the design flaw was recognized during construction ... but the person who noted it forgot to actually make a written order to delete it (and only told the construction foreman ... who later got sick and replaced).
Yeah that’s the trouble, we effectively have no idea how the things work or what might really be involved in making them. However we do know they have recoil that scales up with firepower, so making big ones had got to involve a lot of heavy engineering and probably a whole lot of heavy forging work. That’d mean big specialist tools to make them, not just any old machine shop. But this only makes sense. In real life any old machine shop could make rifles and machine guns, but even most large industrial plants could not make heavy artillery for lack of specialist tools. In Star Wars you could program driods to make heavy turbolasers with a memory stick, but they might need a long time to build up the scale of tooling they have to do the job.
That's pretty much what happened in Destiny's Way as the New Republic moved to a war footing; it took time for droids to start self-replicating and building up the necessary industrial equipment to start producing warships en masse.
BLACKSUN2000 wrote:When someone talks about steel they always say it's X times stronger than Iron.Steel is a lot more; durable,heat and corrosion resistant, so yeah strength is a vague term. But if it's used for space travel/combat it must also be more resistant to heat, radiation/energies and extreme cold.
When laymen speak that, yes, they'll say x times stronger ... but it's still meaningless. Tensile strength? Compressive? In the context of armor, resistant to thermal radiation? Just saying "it's X times stronger!" is worthless without context.
If the calculation is correct, then that could be used as an extreme lower limit. BUT the AT-AT's in the empire strikes back shrugged off hits from snow speeder laser canons, if they're anything like tie fighter lasers, then their much thinner armor shrugged off 32000 tw.
There's no indication at all that snowspeeders are packing starfighter-grade weaponry.
User avatar
Captain Seafort
Jedi Council Member
Posts: 1750
Joined: 2008-10-10 11:52am
Location: Blighty

Re: How much can SW starship armor take with shields down?

Post by Captain Seafort »

phongn wrote:There's no indication at all that snowspeeders are packing starfighter-grade weaponry.
There's also direct evidence that they don't - in Isard's Revenge X-Wing lasers were enough to melt AT-AT armour. They couldn't punch holes in them, but they could breach fuel tanks, wreck the joints and, IIRC, remove a leg or two.
User avatar
Connor MacLeod
Sith Apprentice
Posts: 14065
Joined: 2002-08-01 05:03pm
Contact:

Re: How much can SW starship armor take with shields down?

Post by Connor MacLeod »

Sea Skimmer wrote: Automation on its own does nothing to change the need for machine tools and industrial facilities. If you don’t have the giant tools you need to make other giant tools, then you can’t expand. Making machine tools is the ultimate industrial bottleneck, and usually just doesn’t happen in wartime. Its one thing to crank out more wrenches, quite another to make a 10 million ton force hydraulic press (in real life they go to around 50,000 tons) you need in ordered to forge new gun cradles for the latest 70 meter wide turbolaser turret. Well, you get the idea.

It’s probably a lot less of an issue then it is in real life because they are so advanced and have such huge scale industries, meaning that vast resources exist to be mobilized, but the problem would not just go away entirely. That’s why I suggest that an inability to make certain very large items like reactors might hold back the Separatists even with equal technology. You can have all the technology you can dream of, but it may just lead to lots of paper designs (see, the Nazis) if you don’t have enough machine tools to make all the crap you dream up.
True, though I'd say its less of a bottleneck simply because they have some fairly sophisticated automated construction techniques and self-replicating droids (as long as the resources hold out anyways).

Constructing buildings tends to be a lot more straightforward then making other stuff. The capabilities of the World Devastators are not known to well, as I recall we didn’t see them build anything larger then starfighters. So given how big they are it might just have a bunch of conventional machine tools inside that can make small scale stuff for all we really know.
World Devastators as I recall were involved in fabricating components nad parts for starships, and made smaller starships. They also expanded and rebuilt their own structures to "grow" as I recall.

I only mentioned the construction droids as being an example (albeit a highly specialized one) of the centralized nature of their autonamous construction ability - they'r epretty damn impressive machines even if they just make buildings.
But they may have seen no actual need for more features like that if the Death Star was already well enough armed to repel any likely fleet attack. Filling up all the space would increase the projects cost… but you already have a Death Star! The need for rapid construction might also dictate certain limitations. The thing is pretty damn good already; minus one design flaw so glaring it makes me suspect that Imperial designers inside the project had a conspiracy going on to have added it and kept it from being removed in design revisions.
True, although the point of having lots of empty internal volume you dont use kinda is odd. Unless they planned to expand in the future or something. I'd think you'd want to save resources by building into a smaller hull or some such.
Yes I would imagine most logistics is automated and run by droids and computerized conveyer belts and stuff like that. Also the Empire may rely to a significant degree on civilian shipping to move bulk supplies, and not count this shipping under the sector fleets. Many routes would be secure enough, or already covered by existing convoy systems that a dedicated military transport is just not necessary.

In real life the USN has certain combat support ships which are naval vessels, with navy crews and armament. These are what resupply ships at sea. Then it has military owned but civilian crewed ships in military sealift command with nothing more then machine guns which restock those combat support ships in port or at sea remote from the combat area. Then behind this you can have chartered civilian vessels which only move point to point between bases.

If the Empire worked like this, then having far more warships then support ships makes complete sense. That’s exactly how real navies are. A carrier battlegroup with six or eight escorts and a CVN only has one or two combat support ships attached.
Thats an interesting possibility. I'm inclined to think though that much of the stuff they need could simply be kept at or distributed from naval yards or ports the fleets or sector groups are stationed to, the only things needed being resources shipped in. That is one good benefit of hyperdrive speed I imagine - you can cover alot of distance from your port but still potentially be "in range" for repair and resupply.

I expect the Army and such need more logistical support though.

Only the Trade Federation warfreighters are converted. The Banking Clan and Commerce Guild ships are dedicated warships.
Cheap, crappy warships. As I recall the IBC vessels were used to store and haul financial resources (or had that capacity) while the frigates also served as mobile independent holonet/hyperwave relays. i'd have ot re-check the ICSes tho.
They do have some elevation control. It’s described as being able to pierce the shields on a ‘grade III battlestation’ which is probably what it was for. Long range attacks on fixed defenses and planetary surfaces. In a fleet action it should still be useful against very large enemy ships which normal turbolaser turrets might be kind of worthless.
Its worth noting that on full power the thing would sterilize the planet in a single shot, not to mention hurl the frigate back at thousands of kilometers per second due to recoil.
While it varies, a lot about Star Wars shields suggest they act a lot more like armor plate then they do ‘be slowly drained by fire’ Star Trek shields. The Star Wars shields seem to offer complete protection for a while, but get battered and eventually just fail all at once. Kind of like how you had to batter certain kinds of early wrought iron armor plate, eventually cracking the armor and then shattering the plate, rather then piercing it at one point.
For what its worth, the ICS depiction has them working on a heat sink and radiator principle. Firepower has to be input above the dissipatio rate threshhold for some time ot overwhelm the shields. That's vaguely similar to what you allude to, although IIRC the shields degraded in efficiency over time.
So a single heavy blow may be considerably more effective then the same energy expended by a large number of small turbolasers. Something like this would start to help explain why so many Star Wars ships have really big turrets and gun mounts in really shitty places.
could be.
Something very much like that. In fact the ship I had in mind was classified as an armored gunboat. The Acheron class from France. It’s the utter minimal amount of ship you could ask to mount one modern 10.8in gun that could put a hole in the armor of any battleship of the time.
http://img297.imageshack.us/img297/1019/acheron.jpg
10.8 inch gun huh? Ouch. Of course as I recall a fair bit of WW1 invovled them experimenting in putting big guns on small ships, including some very overgunned cruisers.

Monitor started out as one ship, then became a collective name for low freeboard craft with one or more gun turrets. Some monitors had as many as three turrets and six guns. A ship with broadside guns can’t be a monitor. The Confederate ships built like that were usually just called ‘rams’ or ‘casemate rams’ at the time. Ocean going broadside ships were known as broadside ironclads, and then central battery ships. However turret armed designs had proven clearly superior by the end of 1870s and the first battleship designs with turrets at each one of a superstructure we’d recognize as modern showed up earlier. The difference between a monitor and certain armored gunboats like Acheron was pretty much just a matter of opinion, though many armored gunboats lacked turrets and thus could not be monitors.
Yeah I remember details like that. One of the things that dictated the change from turrets to broadsides is that you stated mounting fewer, bigger guns in ships to punch through iron armoed hulls, and those guns were IIRC easier to mount on turrets than in broadsides. Though WW1 had ships utilizing a greater diversity of guns before you got to the "Dreadnought" type "all gun" battleships in later years.

Yeah that’s the trouble, we effectively have no idea how the things work or what might really be involved in making them. However we do know they have recoil that scales up with firepower, so making big ones had got to involve a lot of heavy engineering and probably a whole lot of heavy forging work. That’d mean big specialist tools to make them, not just any old machine shop. But this only makes sense. In real life any old machine shop could make rifles and machine guns, but even most large industrial plants could not make heavy artillery for lack of specialist tools. In Star Wars you could program driods to make heavy turbolasers with a memory stick, but they might need a long time to build up the scale of tooling they have to do the job.
Could be.
User avatar
phongn
Rebel Leader
Posts: 18487
Joined: 2002-07-03 11:11pm

Re: How much can SW starship armor take with shields down?

Post by phongn »

Connor MacLeod wrote:
Sea Skimmer wrote:The Empire might well have quite a lot of ships which do not even have hyperdrives for planetary defense, basically a space version of a unseaworthy coastal defense ship. I can easily imagine that the Empire has a giant version of the fighter scale external hyperdrive we see in Attack of the Clones, which could be used to deliver ships like this to a planet, then taken back home to deliver another one.
Could be, but I'd bet most of those would be local forces under planetary control, and it depends on if its a single or multi-system polity I suppose. Even then though, hyperdrives seem like they can get pretty compact so I dont think you could save that much from keeping one out. But who knows.
I missed this bit - WEG has the example of the IPV-1 system patrol craft.
User avatar
Ritterin Sophia
Sith Acolyte
Posts: 5496
Joined: 2006-07-25 09:32am

Re: How much can SW starship armor take with shields down?

Post by Ritterin Sophia »

takemeout_totheblack wrote:Wookiepedia states
I've got a couple questions in regard to that: When did Lucasfilm acquire Wookieepedia and make it a licensed online encyclopedia? If they haven't, when did SDN start to give a fuck about what Wookiee says if we don't have the actual quote from the source they derived it from?
A Certain Clique, HAB, The Chroniclers
User avatar
takemeout_totheblack
Padawan Learner
Posts: 358
Joined: 2010-01-26 03:59pm
Location: Knowing where you are is no fun! Back to adventure!

Re: How much can SW starship armor take with shields down?

Post by takemeout_totheblack »

General Schatten wrote:
takemeout_totheblack wrote:Wookiepedia states
I've got a couple questions in regard to that: When did Lucasfilm acquire Wookieepedia and make it a licensed online encyclopedia? If they haven't, when did SDN start to give a fuck about what Wookiee says if we don't have the actual quote from the source they derived it from?
I was just putting one source of info out there. I wasn't claiming that it was right or canon or anything, just a bit of info to be confirmed or disproved by SDN. I'll try to post their list of references next time, if they're there to begin with.
There should be an official metric in regard to stupidity, so we can insult the imbeciles, morons, and RSAs out there the civilized way.
Any ideas for units of measure?

This could be the most one-sided fight since 1973 when Ali fought a 80-foot tall mechanical Joe Frazier. My memory isn't what it used to be, but I think the entire earth was destroyed.
~George Foreman, February 27th 3000 C.E.
User avatar
Ritterin Sophia
Sith Acolyte
Posts: 5496
Joined: 2006-07-25 09:32am

Re: How much can SW starship armor take with shields down?

Post by Ritterin Sophia »

takemeout_totheblack wrote:
General Schatten wrote:
takemeout_totheblack wrote:Wookiepedia states
I've got a couple questions in regard to that: When did Lucasfilm acquire Wookieepedia and make it a licensed online encyclopedia? If they haven't, when did SDN start to give a fuck about what Wookiee says if we don't have the actual quote from the source they derived it from?
I was just putting one source of info out there. I wasn't claiming that it was right or canon or anything, just a bit of info to be confirmed or disproved by SDN. I'll try to post their list of references next time, if they're there to begin with.
If you could, just post the source it comes from, if you can't confirm it don't post it. Wookieepedia is well known to be outright wrong.
A Certain Clique, HAB, The Chroniclers
User avatar
Sea Skimmer
Yankee Capitalist Air Pirate
Posts: 37390
Joined: 2002-07-03 11:49pm
Location: Passchendaele City, HAB

Re: How much can SW starship armor take with shields down?

Post by Sea Skimmer »

Connor MacLeod wrote: True, though I'd say its less of a bottleneck simply because they have some fairly sophisticated automated construction techniques and self-replicating droids (as long as the resources hold out anyways).
That means it isn’t a hard bottleneck, because you can keep making more machinery, but it would be enough to put a serious crimp in plans to build big weapons. Even with self replications it could take years to ramp up production of large complete weapon systems. I don’t know if anyone ever did straight calculations on the ISD so we could compare the ships Gross Register Tonnage to real shipbuilding, but it has to be pretty colossal.

World Devastators as I recall were involved in fabricating components nad parts for starships, and made smaller starships. They also expanded and rebuilt their own structures to "grow" as I recall.
Yeah but we don’t really see that much on how that worked. It’d have to be modular for everything. Its supposed to have a ‘molecular furnace’ at the center of it all, which presumably lets it split down all the material in intakes into different pure materials. Then it can straight cast and forge and stamp everything it needs for structure. Separate lines make electronics, and droids stuff them in. Then you just need assembly halls in which droids can constantly put together modular pieces, and complete smaller weapons.

True, although the point of having lots of empty internal volume you dont use kinda is odd. Unless they planned to expand in the future or something. I'd think you'd want to save resources by building into a smaller hull or some such.


Well we already know that the Empire did not lavish every feature on the Death Star, as it had no proper armament of close in defense weapons to repel Starfighters. So if they used up a lot of space with big open areas its no real surprise when they aren’t even demanding the maximum possible scale of armament and manning.

If you look at the ICS plans for the ship, huge components of the superlaser and hypermeter reactor are spread throughout the length of the vertical and horizontal axis. So the diameter was being fixed by those things already.

Its very hard to see how all the deck space packed in-between all the huge pieces of internal machinery could ever be purposefully used. Even if you wanted to transport enough troops to invade several systems at once you wouldn’t need all that. So big corridors make sense. At least they mean you can move large objects, weapons and equipment in, to convert the space to a future use latter if you ever think one up. I’d bet the ship had thousands of square acres of empty vehicle storage decks too, and other unused features like that. After all she was brand new to the fleet, only just completed trials and out on a quick shakedown cruise to blow up Alderman and the Rebel base. I’d imagine war games with the fleet would have turned up some of the defects, light subfighters buzzing around blowing up all the turrets after a few months. Too bad the rebel scum blew the thing to hell because it lacked an armored uptake grating the real world figured out 100 years ago.
Thats an interesting possibility. I'm inclined to think though that much of the stuff they need could simply be kept at or distributed from naval yards or ports the fleets or sector groups are stationed to, the only things needed being resources shipped in. That is one good benefit of hyperdrive speed I imagine - you can cover alot of distance from your port but still potentially be "in range" for repair and resupply.


Yeah, you have no real need for anything like underway replenishment except during blockade operations. But they still would probably have a couple links in the supply chain.

The downside also is that a ship that becomes a cripple with no hyperdrive would be very annoying. In real life you can tow a ship across an ocean at a few knots, and it will take a while, but well you can do it reasonably. A big Imperial Destroyer which can’t be fixed by the technicians and limited scale of facilities at a place like Bespin meanwhile might need many years at the edge of the speed of light to get home. You’d have to have a policy of either repairing the ships as they drift, a dangerous exposed position to work in more like tank recovery squad then shipyard repair, or else have some damn huge hyperspace tugs if this is possible at all. A mobile repair capability seems pretty likely, along with provisions for complete mobile basing of course. This would be easily done. Only the logistics dumps in the core near the production centers would have to be colossal. Like whole continents on moons or more covered in ammunition bunker farms.
Cheap, crappy warships. As I recall the IBC vessels were used to store and haul financial resources (or had that capacity) while the frigates also served as mobile independent holonet/hyperwave relays. i'd have ot re-check the ICSes tho.
Yeah its something like that, but they seem perfectly fine to me in view of how small they are. We see only one other sub destroyer scale major warship seen in the movies, the Corellian Corvette, seems similar overall. Long narrow layout, exposed bank of engines, and several cannon which are proportionally overscale compared to the size of turbolasers mounts on the destroyer designs.
Its worth noting that on full power the thing would sterilize the planet in a single shot, not to mention hurl the frigate back at thousands of kilometers per second due to recoil.
Umm I don’t recall anything like that, it’d depend on how fast the frigate was going in the first place.
For what its worth, the ICS depiction has them working on a heat sink and radiator principle. Firepower has to be input above the dissipatio rate threshhold for some time ot overwhelm the shields. That's vaguely similar to what you allude to, although IIRC the shields degraded in efficiency over time.
Well the concepts certainly aren’t mutually exclusive. You could easily have a dissipation limit and also a proportional vulnerability to heavy impacts causing collapse. The generators may also have considerable cooling requirements which are not strictly dependent on the load. A lot of real machinery and engines don’t have functioning which follows a nice linear graph line.

10.8 inch gun huh? Ouch. Of course as I recall a fair bit of WW1 invovled them experimenting in putting big guns on small ships, including some very overgunned cruisers.
Yup, and for the same reason, bigger shells are a lot more damaging because they break structure that a smaller round would only riddle. The opposite is largely true for weapons aimed at personal and soft targets, when the main problem is overkill and then you want many small projectiles like machine guns or cluster bombs.

Yeah I remember details like that. One of the things that dictated the change from turrets to broadsides is that you stated mounting fewer, bigger guns in ships to punch through iron armoed hulls, and those guns were IIRC easier to mount on turrets than in broadsides. Though WW1 had ships utilizing a greater diversity of guns before you got to the "Dreadnought" type "all gun" battleships in later years.


Yeah turrets made it much easier to mount guns, and still be able to fire more then one or two of them at the target. Predreadnought battleships had hordes of different guns because the main batteries fired very slowly, and at the expected close battle ranges intermediate and light weapons could expect to pierce significant armor and score hoards of hits. The Russo-Japanese War showed that you could score lots of hits all right, but that only the heavy ones really mattered. That plus longer ranges killed off the intermediate caliber. Light guns stuck around to shoot at torpedo boats.

Star Wars armament seems to be firmly stuck in a predreadnought kind of thinking. So placing a few heavy guns on small ships only makes sense. It at least lets them try to hurt something much larger.
"This cult of special forces is as sensible as to form a Royal Corps of Tree Climbers and say that no soldier who does not wear its green hat with a bunch of oak leaves stuck in it should be expected to climb a tree"
— Field Marshal William Slim 1956
User avatar
Connor MacLeod
Sith Apprentice
Posts: 14065
Joined: 2002-08-01 05:03pm
Contact:

Re: How much can SW starship armor take with shields down?

Post by Connor MacLeod »

Sea Skimmer wrote: That means it isn’t a hard bottleneck, because you can keep making more machinery, but it would be enough to put a serious crimp in plans to build big weapons. Even with self replications it could take years to ramp up production of large complete weapon systems. I don’t know if anyone ever did straight calculations on the ISD so we could compare the ships Gross Register Tonnage to real shipbuilding, but it has to be pretty colossal.
True, though ramping up production can't be too big a deal for SW - the DS2 would have been arguably less than a decade all told (The DS1 had alot of research and secrecy problems delaying its construction. The DS2 was significantly faster overall.) But even if we use the DS1 as a benchmark, we're looking at decades tops form start to finish, which isn't bad for that sort of project (the scale and method.)

I could ask around about tonnage and calcs WRT production, but one detail I vaguely recall hinted at in the DK books is that surface area plays a big role in "automated" ship building -the DS2 had a half completed outer shell to maximize self replicating droid construction basically.

Yeah but we don’t really see that much on how that worked. It’d have to be modular for everything. Its supposed to have a ‘molecular furnace’ at the center of it all, which presumably lets it split down all the material in intakes into different pure materials. Then it can straight cast and forge and stamp everything it needs for structure. Separate lines make electronics, and droids stuff them in. Then you just need assembly halls in which droids can constantly put together modular pieces, and complete smaller weapons.
We're told every construct made in SW is more or less modular. Even the Death Stars supposedly had modular construction in it (which seems to make sense =- the interior of the DS resembled Star Destrsoyers a fair bit) so its likely the World Devastators were too. Of course we were also told that this was a "revolutionary" step for the Empire, which I find hard to believe in a technological sense, so maybe that just means the Republic's military industry was deliberately more inefficient (considering how fucked up the corporate interests are portrayed, it wouldn't surprise me.)

Most of the Confederacy gear looks modular, right down to your basic B1 battle droid (modular as hell.) - one would imagine the Republic adopted similiar techniques just to keep parity.

Well we already know that the Empire did not lavish every feature on the Death Star, as it had no proper armament of close in defense weapons to repel Starfighters. So if they used up a lot of space with big open areas its no real surprise when they aren’t even demanding the maximum possible scale of armament and manning.

If you look at the ICS plans for the ship, huge components of the superlaser and hypermeter reactor are spread throughout the length of the vertical and horizontal axis. So the diameter was being fixed by those things already.

Its very hard to see how all the deck space packed in-between all the huge pieces of internal machinery could ever be purposefully used. Even if you wanted to transport enough troops to invade several systems at once you wouldn’t need all that. So big corridors make sense. At least they mean you can move large objects, weapons and equipment in, to convert the space to a future use latter if you ever think one up. I’d bet the ship had thousands of square acres of empty vehicle storage decks too, and other unused features like that. After all she was brand new to the fleet, only just completed trials and out on a quick shakedown cruise to blow up Alderman and the Rebel base. I’d imagine war games with the fleet would have turned up some of the defects, light subfighters buzzing around blowing up all the turrets after a few months. Too bad the rebel scum blew the thing to hell because it lacked an armored uptake grating the real world figured out 100 years ago.
I suppose it could just be because it was a "first design" thing. Leaving that much empty space doesn't really solve anything because there's lots of things they could ave done with it (radiators might have been a good explanation, or maybe filling the volume with heat sinks, but I think you wouldnt be able to get away with that.)

As far as the design or structure dictating the size/shape of the Death Star, I don't think it would be *that* fixed. I could point to the Hutts building Darksaber, but we know that the Superlaser itself was "off axis" from the reactor and some of the other components - either they could have built the superlaser facing one of the ends or could have built in more "off axis" components. An ovoid probably could have been used rather than a perfect sphere too. Basically I just find it hard to believe they left that much empty space as a logical reason since it represents time and resources spent to no purpose.
Yeah, you have no real need for anything like underway replenishment except during blockade operations. But they still would probably have a couple links in the supply chain.

The downside also is that a ship that becomes a cripple with no hyperdrive would be very annoying. In real life you can tow a ship across an ocean at a few knots, and it will take a while, but well you can do it reasonably. A big Imperial Destroyer which can’t be fixed by the technicians and limited scale of facilities at a place like Bespin meanwhile might need many years at the edge of the speed of light to get home. You’d have to have a policy of either repairing the ships as they drift, a dangerous exposed position to work in more like tank recovery squad then shipyard repair, or else have some damn huge hyperspace tugs if this is possible at all. A mobile repair capability seems pretty likely, along with provisions for complete mobile basing of course. This would be easily done. Only the logistics dumps in the core near the production centers would have to be colossal. Like whole continents on moons or more covered in ammunition bunker farms.
Actually I think you CAN tug things through hyperspace, although evidence of such is escaping my understanding. Worst case scenario would simply having the stuff hypered out to the crippled ship - interstellar communications is still largely intact even if they're restricted to subspace, and the galaxy is big enough that at least one such place (sector) would be within range.

Failing that, they deploy one of the (few) hyperspace capable small craft thy have (gunboats, blastboats, shuttles or some sort of probe or messenger drone) and some base dispatches help. This sort of setup wouldn't work in a galaxy not set up as STar Wars (with galactic-wide fTL comms in place and a heavily developed galactic society)
Yeah its something like that, but they seem perfectly fine to me in view of how small they are. We see only one other sub destroyer scale major warship seen in the movies, the Corellian Corvette, seems similar overall. Long narrow layout, exposed bank of engines, and several cannon which are proportionally overscale compared to the size of turbolasers mounts on the destroyer designs.
True, although I'm not sure the size of guns means anything per se, at least WRT firepower.. the intention at least seems to be that reactor power has more to do with firepower. If they use some sort of explosive projectile (projectile weapons DO exist in SW), its conceivable to have small ships that have firepower vastly out of proportion ot their size. I mean its not as if we don't know small ships have fired on bigger ones ever since ANH.
Umm I don’t recall anything like that, it’d depend on how fast the frigate was going in the first place.
Calculated output of the weapon (its described as blast-melting a 10 km moon or something like that) vs the power generation and acclerative capability of the weapon. Honestly I think its a bit silly for a weapon that small, but oh well. IT also means the ship probably only has a few shots at that setting (fewer than a 100 IIRC) and spends a fair bit of time recharging or in recoil compensation (which further sucks up power since they gotta use engines unless they have some handy large mass to brace against via repuslors or tractor beams.) I think the recharge time was something like 15-20 minutes per shot at max power.
Well the concepts certainly aren’t mutually exclusive. You could easily have a dissipation limit and also a proportional vulnerability to heavy impacts causing collapse. The generators may also have considerable cooling requirements which are not strictly dependent on the load. A lot of real machinery and engines don’t have functioning which follows a nice linear graph line.
Force and momentum (as with recoil) is a big issue and probably can contribute to shield failures as much (if not more) in overwhelming shields locally. Cooling is an interesting point I hadn't considered - usually you just factor in the dissipation rate but if you have sustained bombardments that don't manage to overwhelm the defensive capacities of the shields it probably would overheat and force a shield shutdown, wouldn't it?

Normally we don't address the efficiency of the energy input rate (IE possible "bleed through") into the shields either. Shield generators seem to have individual abilities to absorb/dissipate energy independent of the sinks, and we know that they typically shift or "angle" shields to maximize protection. One would imagine that the individual shield capabilities are less than the max dissipation rate of the heat sinks given that.

Yup, and for the same reason, bigger shells are a lot more damaging because they break structure that a smaller round would only riddle. The opposite is largely true for weapons aimed at personal and soft targets, when the main problem is overkill and then you want many small projectiles like machine guns or cluster bombs.
Larger diameter, more fragmentation/explosive effect, or just more force/momentum behind the round? OR a combination?
There's also "bigger hole means it will fill with water faster" which will not only sink the ship but also put strain on the hull from the sheer volume of water rushing in through a narrow opening - I think you mentioned that somewhere.

Yeah turrets made it much easier to mount guns, and still be able to fire more then one or two of them at the target. Predreadnought battleships had hordes of different guns because the main batteries fired very slowly, and at the expected close battle ranges intermediate and light weapons could expect to pierce significant armor and score hoards of hits. The Russo-Japanese War showed that you could score lots of hits all right, but that only the heavy ones really mattered. That plus longer ranges killed off the intermediate caliber. Light guns stuck around to shoot at torpedo boats.
And bigger guns were better at penetrating armor (Tho I think armor protection kinda plateued around WW2 as well which is why big gun BB types aren't used.. missiles render both obsolete.) I vaguely remember hearing that intermediate and lighter guns were used for establishing range (could fire faster and thus you could fire more shots to range on your enemy) before better methods of targeting were developed too and ranges started growing.
Star Wars armament seems to be firmly stuck in a predreadnought kind of thinking. So placing a few heavy guns on small ships only makes sense. It at least lets them try to hurt something much larger.
I don't think that the "big vs small gun" is as great a problem for SW as it is for RL. Big guns can have drawbacks too depending on design - recoil management is a big problem. While larger numbers of smaller guns carry less punch per shot and make concentrated fire harder, they do carry less recoil per shot too and its harder to take out your armament. Bigger more massive turrets will also turn slower.

It's also probably easier to handle coverage and protection with lots of smaller guns. Big guns always seem to be mounted on or close to the axis, after all, and that puts a HUGE limitation on coverage and arcs (this isnt a big problem I think because the heavy guns are pretty much long range strictly.)
User avatar
Sea Skimmer
Yankee Capitalist Air Pirate
Posts: 37390
Joined: 2002-07-03 11:49pm
Location: Passchendaele City, HAB

Re: How much can SW starship armor take with shields down?

Post by Sea Skimmer »

Connor MacLeod wrote: True, though ramping up production can't be too big a deal for SW - the DS2 would have been arguably less than a decade all told (The DS1 had alot of research and secrecy problems delaying its construction. The DS2 was significantly faster overall.) But even if we use the DS1 as a benchmark, we're looking at decades tops form start to finish, which isn't bad for that sort of project (the scale and method.)
Well yeah sure 10 years is enough time to build past any bottleneck in real life too, but to humans with human scale evil plans it’s a while to wait. I’d imagine the early years of the project saw a lot of machinery ordered from all around the Core, big droid depot ships, 1 trillion ton forges ect.. while the design was finalized and prototyped.

The DS2 would benefit enormously from being built with all the equipment they had built up from building the first one.

I could ask around about tonnage and calcs WRT production, but one detail I vaguely recall hinted at in the DK books is that surface area plays a big role in "automated" ship building -the DS2 had a half completed outer shell to maximize self replicating droid construction basically.
Increasing working area is why modular is the way to go. Imperial ships are so huge and large masses so easy to move in space that you could do things a lot of ways. I think the DS2 was also just being built in a certain way to make it appear near competition, but unfinished in a manner that would make it unlikely to be operational. This could also be some of the reason for the colossal increase in scale, when the DS1 clearly already had ample firepower. Increasing the refire rate doesn’t seem likely to have required all of that volume alone.

We're told every construct made in SW is more or less modular. Even the Death Stars supposedly had modular construction in it (which seems to make sense =- the interior of the DS resembled Star Destrsoyers a fair bit) so its likely the World Devastators were too. Of course we were also told that this was a "revolutionary" step for the Empire, which I find hard to believe in a technological sense, so maybe that just means the Republic's military industry was deliberately more inefficient (considering how fucked up the corporate interests are portrayed, it wouldn't surprise me.)

Most of the Confederacy gear looks modular, right down to your basic B1 battle droid (modular as hell.) - one would imagine the Republic adopted similiar techniques just to keep parity.
The Republic seems like the kind of place that would have had a very dysfunctional mobilization. But yeah they almost certainly would have mostly automated production of arms and equipment of all types.

I suppose it could just be because it was a "first design" thing. Leaving that much empty space doesn't really solve anything because there's lots of things they could ave done with it (radiators might have been a good explanation, or maybe filling the volume with heat sinks, but I think you wouldnt be able to get away with that.)

As far as the design or structure dictating the size/shape of the Death Star, I don't think it would be *that* fixed. I could point to the Hutts building Darksaber, but we know that the Superlaser itself was "off axis" from the reactor and some of the other components - either they could have built the superlaser facing one of the ends or could have built in more "off axis" components. An ovoid probably could have been used rather than a perfect sphere too. Basically I just find it hard to believe they left that much empty space as a logical reason since it represents time and resources spent to no purpose.
Darksaber may have been substantially less powerful but still able to blow up a planet. Afterall Alderaan wasn’t just destroyed, it was blown apart through a shield at a good sliver of the speed of light. For a big gun sometimes you will just need a minimal size mounting. The British even had a family of a 9.2in howitzer and a 12in howitzer each of which had a giant box on the front so you could add 9 tons of dirt by the shovelful to hold it down.

I think of the thing like a siege gun and a temperamental supercollosal one at that. All the big maintenance shafts on the ICS drawings and the generally huge scale of its auxiliaries make me think its not meant to work like a Maxim Gun. It may need a really big base, and a lot of repair via replacement of part to keep running.

You really have to wonder just how they’d go about making the main reactor.. It’d basically demand that they have some kind of welding that can put together huge pieces completely flawlessly. They could THINK about making a casting of that scale if they wanted, but it seems unlikely they need to do this.
Actually I think you CAN tug things through hyperspace, although evidence of such is escaping my understanding. Worst case scenario would simply having the stuff hypered out to the crippled ship - interstellar communications is still largely intact even if they're restricted to subspace, and the galaxy is big enough that at least one such place (sector) would be within range.
I remember some reference book or another had mention of a hyperspace container ship, but I got the impression the containers were being stacked inside some kind of framework IIRC. If you need proportional sized tugs, which seems logical, then recovering an ISD would be real fun. But it might take some major work to physically mate tug to cripple.

Failing that, they deploy one of the (few) hyperspace capable small craft thy have (gunboats, blastboats, shuttles or some sort of probe or messenger drone) and some base dispatches help. This sort of setup wouldn't work in a galaxy not set up as STar Wars (with galactic-wide fTL comms in place and a heavily developed galactic society)
Yeah, the high speed communications are vital to this. But its one of those subject you really could draw several conclusions from given the evidence. The Empire may still be very heavily forward deployed even with its high speed transport and communications. We can’t really know since every book that involves an Imperial base inevitably portrays it as something pathetically weak for one X-wing squadron to defeat.

True, although I'm not sure the size of guns means anything per se, at least WRT firepower.. the intention at least seems to be that reactor power has more to do with firepower. If they use some sort of explosive projectile (projectile weapons DO exist in SW), its conceivable to have small ships that have firepower vastly out of proportion ot their size. I mean its not as if we don't know small ships have fired on bigger ones ever since ANH.
Well yeah the relationship may not be entirely linear, and a lot of the differences are going to be internal but still something has to give a reason for guns of larger sizes. Otherwise people would just stop at a certain size. They kind of seem to as it is with the heavy turbolaser turrets on the ISDs being not that huge, but we don’t see much detail on any much larger ships.
Calculated output of the weapon (its described as blast-melting a 10 km moon or something like that) vs the power generation and acclerative capability of the weapon. Honestly I think its a bit silly for a weapon that small, but oh well. IT also means the ship probably only has a few shots at that setting (fewer than a 100 IIRC) and spends a fair bit of time recharging or in recoil compensation (which further sucks up power since they gotta use engines unless they have some handy large mass to brace against via repuslors or tractor beams.) I think the recharge time was something like 15-20 minutes per shot at max power.
I don’t think it mentioned rate of fire, but I would expect it to be poor or limited by more then just aiming at full power. The max firepower is probably like a supercharge for a piece of magnum artillery. It must have been of some use though, otherwise they could have replaced it with a couple small scale turrets by several years into the war.

Force and momentum (as with recoil) is a big issue and probably can contribute to shield failures as much (if not more) in overwhelming shields locally. Cooling is an interesting point I hadn't considered - usually you just factor in the dissipation rate but if you have sustained bombardments that don't manage to overwhelm the defensive capacities of the shields it probably would overheat and force a shield shutdown, wouldn't it?
It could well, no machinery likes heat. Failure will become a lot more likely for all the components, and they may have some kind of limited time rating at peak power just like a computer power supply.

I mean you look at an engine, you run it to the redline and it should keep working fine, but your placing it into an extreme operating environment. At that point it wont take much to push it over the edge.

Heavier hits may be worse because they dump so much energy into the shield in a very short burst that it starts causing localized damage. Whatever radiator-wiring-heat pipe kind of setup they have going WILL have a hard limit to how much it can move. However exceeding that limit for a moment may not cause loss of shields, the first time. It might take a couple overloads and then the shield fails or automatically shuts down in the hope it can restart later to avoid being destroyed.

Normally we don't address the efficiency of the energy input rate (IE possible "bleed through") into the shields either. Shield generators seem to have individual abilities to absorb/dissipate energy independent of the sinks, and we know that they typically shift or "angle" shields to maximize protection. One would imagine that the individual shield capabilities are less than the max dissipation rate of the heat sinks given that.
Angling is an interesting thing to think about. On the one hand it could mean it works like sloped armor, and tries to deflect the incoming fire away. On the other hand it could also mean that the shields are positioned in such a way as to angle the energy the impacts the shields into generators which are further away. That way the generators closest to the impact area aren’t overloaded as quickly. This would be advantageous if you are mostly being attacked from one direction.

We’ve also been told that shields lie right on the hull, which may be a different position from ‘angling’ or it may be more complicated then that and they can do both, with no actual ‘angle’s involved. Just an expression. Either way it does sound like the armor/hull is meant to absorb some of every impact. This makes sense, because a low intensity blow on steel type armor shouldn’t cause any permanent damage, even if its repeated many times. So you’ve got another energy sink at work.

Yup, and for the same reason, bigger shells are a lot more damaging because they break structure that a smaller round would only riddle. The opposite is largely true for weapons aimed at personal and soft targets, when the main problem is overkill and then you want many small projectiles like machine guns or cluster bombs.


Larger diameter, more fragmentation/explosive effect, or just more force/momentum behind the round? OR a combination?
Larger diameter shells hold a lot more high explosive, so they generate destructive blast overpressure a lot more readily. The fragmentation is much worse, because it can pierce a lot more materials from being heavier and faster. This all important because steel and similar materials have impact/blast resistances below which they just don’t take any real damage. Smaller artillery shells like 155mm and less tend to be mainly fragmentation weapons. On something like a ship when you have a lot of enclosed spaces, a small caliber round is going to riddle bulkheads with shrapnel, while a big shell is going to tear the bulkheads down. Bombs are worse still and can make actual big craters down into the decks.

So you move from damage that just causes personal and equipment damage, to damage which is seriously demolishing the strength of the target and which defeats light internal armor layers meant to localize damage. That can go a long way towards allowing flooding and fires to spread past the immediate damaged area.

Image

This shows damage to USS Savannah after she was hit by a 3,100lb Fritz X guided bomb in 1943. This is the upper end of air weapons for WW2, excluding the super massive Tallboy and Grand Slam bombs. You can see how it just tore apart the structure around the burst, and even peeled up the ships armor deck. The ship was only saved from a major ammunition fire causing an explosion by flooding through a hole blown by the time.

These two images show torpedo damage to USS Houston, and then a detail of emergency repair work done at forward bases. You can see how they first bridged the gap across the hole with more girders, and then latter filled the shell plating back in. That left her good enough to return to a proper yard to have the damage repaired back to orginal specs.
http://www.researcheratlarge.com/Ships/CL81/Plate09.jpg
http://www.researcheratlarge.com/Ships/CL81/Plate11.jpg

Now Star Wars ships have different damage mechanisms going on, but I think a lot of this will still hole true in general terms. Particularly since like you point out some ship to ship weapons are projectile based to start with.

There's also "bigger hole means it will fill with water faster" which will not only sink the ship but also put strain on the hull from the sheer volume of water rushing in through a narrow opening - I think you mentioned that somewhere.
Ships with damaged structure can have serious problems from the weight of water pouring in. This is why many torpedoed ships break in half when they sank, particularly smaller ones like destroyers. Torpedoes are the best thing you could ask for to blow holes in structure since the water tamps the blast.

And bigger guns were better at penetrating armor (Tho I think armor protection kinda plateued around WW2 as well which is why big gun BB types aren't used.. missiles render both obsolete.)
Yeah no one has used really thick armor since WW2. But modern carriers still do have major armoring, but its spread into a series of 2in and 1in thick decks and all across the hull side so that it can detonate projectiles high in the ship and try to localize the damage. Below is a diagram of the armor on a Forrestal Class carrier. Thicknesses in millimeters and all of the armor also serves as structure.
Image

Actually trying to stop a heavy missile outright was futile as people can too easily design a bigger warhead, but several armor decks can ensure it explodes before it reaches the vital magazine and machinery spaces. Even in WW2 some navies including the USN were already moving to armor schemes like this, in which some certain damage was accepted in favor of reducing the chances of any catastrophic damage. Torpedo protection always had to work this way.

Imperial ships seem to rely on a single massively thick outer armor hull, but they probably have a lot of thin armor layers behind that as part of the structure of the hull. Such huge ships would mean defeating heavy blows with armor more realistic, because the bigger the ship the more volume for the surface area. So armor thickness can go up.
I vaguely remember hearing that intermediate and lighter guns were used for establishing range (could fire faster and thus you could fire more shots to range on your enemy) before better methods of targeting were developed too and ranges started growing.
In theory they established the range, and a dominance of fire which would make it hard for the enemy to return fire. This didn’t work out so well, thus the shift to more big guns.
I don't think that the "big vs small gun" is as great a problem for SW as it is for RL. Big guns can have drawbacks too depending on design - recoil management is a big problem. While larger numbers of smaller guns carry less punch per shot and make concentrated fire harder, they do carry less recoil per shot too and its harder to take out your armament. Bigger more massive turrets will also turn slower.

It's also probably easier to handle coverage and protection with lots of smaller guns. Big guns always seem to be mounted on or close to the axis, after all, and that puts a HUGE limitation on coverage and arcs (this isnt a big problem I think because the heavy guns are pretty much long range strictly.)
[/quote]

I don’t know how much long range they can really do if they have such relatively high times of flight for the bolt. I forget what turbo lasers have been clocked at, but its nothing you couldn’t think about evading by chasing salvos. Some shots would still hit, but you’d quickly have a high ratio of misses even at a few hundred kilometers. Even if they have no more then modern radar and telescope technology for targeting engagements at thousands of kilometers should be trivially easy in terms of fire control. But the guns may be more inaccurate then we know at a range, and enemy ships can move pretty fast. I suspect this is why so many battles come down to point blank range. Both sides have every incentive to close with each other and long range capability is only really relevant when one side has greatly superior speed but inferior position and wishes to fight an indecisive battle.
"This cult of special forces is as sensible as to form a Royal Corps of Tree Climbers and say that no soldier who does not wear its green hat with a bunch of oak leaves stuck in it should be expected to climb a tree"
— Field Marshal William Slim 1956
User avatar
Connor MacLeod
Sith Apprentice
Posts: 14065
Joined: 2002-08-01 05:03pm
Contact:

Re: How much can SW starship armor take with shields down?

Post by Connor MacLeod »

Sea Skimmer wrote: Well yeah sure 10 years is enough time to build past any bottleneck in real life too, but to humans with human scale evil plans it’s a while to wait. I’d imagine the early years of the project saw a lot of machinery ordered from all around the Core, big droid depot ships, 1 trillion ton forges ect.. while the design was finalized and prototyped.
Could be. That does assume they didnt just build the equipment they'd need themselves out in some isolated region. It's possible the DS needed at least some specialized equipment that may or may not be ready (which would tie into the design/prototype aspect.)
The DS2 would benefit enormously from being built with all the equipment they had built up from building the first one.
Maybe. The DS2 was something like 900 km as opposed to the 160 km - we're talking orders of magnitude difference in size/volume and I would expect the equipment/resource requirements to likewise be considerably greater even if it doesnt scale linearly, especially given roughly similar timeframes (with allowances for halts and delays and such)

Increasing working area is why modular is the way to go. Imperial ships are so huge and large masses so easy to move in space that you could do things a lot of ways. I think the DS2 was also just being built in a certain way to make it appear near competition, but unfinished in a manner that would make it unlikely to be operational. This could also be some of the reason for the colossal increase in scale, when the DS1 clearly already had ample firepower. Increasing the refire rate doesn’t seem likely to have required all of that volume alone.
well appearance is another possibility, but I'd be shocked if the Rebellion didn't have their own engineers and such who couldn't spot the trick - the surface area bit in that case could serve as further camoflage.

Darksaber may have been substantially less powerful but still able to blow up a planet. Afterall Alderaan wasn’t just destroyed, it was blown apart through a shield at a good sliver of the speed of light. For a big gun sometimes you will just need a minimal size mounting. The British even had a family of a 9.2in howitzer and a 12in howitzer each of which had a giant box on the front so you could add 9 tons of dirt by the shovelful to hold it down.
Darksaber as I recall was supposedly "more powerful" than the original - although that power may have come from efficiency less than raw energy. Perhaps there were inefficiency issues with teh design to compromise. After all they had other things than just the weapons platform for the Death star - the other combat necessities as well.
I think of the thing like a siege gun and a temperamental supercollosal one at that. All the big maintenance shafts on the ICS drawings and the generally huge scale of its auxiliaries make me think its not meant to work like a Maxim Gun. It may need a really big base, and a lot of repair via replacement of part to keep running.
I always thought of the Death Star as being the SW analogy to the atomic bomb, just a more reusable one. I suppose a Siege gun with nuclear ordnance.
You really have to wonder just how they’d go about making the main reactor.. It’d basically demand that they have some kind of welding that can put together huge pieces completely flawlessly. They could THINK about making a casting of that scale if they wanted, but it seems unlikely they need to do this.
Not so sure about that. I have a hard time believing that if the materials alone were that powerful then any ordancne the Falcon or an X-wing could carry could threaten the machinery inside the reactor. Part of me suspects that the reactor likely used a great deal of force fiedl technology to make it work. Any material components may simply have been there due to supporting/maintaining the fields (in the sense that we know that ships with repulsors still have landing gear.)
I remember some reference book or another had mention of a hyperspace container ship, but I got the impression the containers were being stacked inside some kind of framework IIRC. If you need proportional sized tugs, which seems logical, then recovering an ISD would be real fun. But it might take some major work to physically mate tug to cripple.
There's the black ice perhaps. It was a container train ship that used some force field cargo thingies to haul important stuff like fuel and such, as well as the various container ships in the games.

It is possible they'd require multiple tugs (or tug components who knows) to connect to the ship and allow it to be translated to hyperspace. It may not neccesarily be a "fast" transit, but it doesnt need to be to get them there in any reasonable timeframe (crossing a few dozen or a few hundred light years in a matter of days ought to be enough). Maintaining structural integrity and shielding against hyperspace may be an issue but again force field tech could cover that (tensor fields and such - think of the removable wings on the droid landing ship in the prequels)

Worse comes to worse I believe the Empire has mobile shipyards and repair docks as well (At least a couple per SEctor) and its possible they just go out to the crippled ship to repair it.

Yeah, the high speed communications are vital to this. But its one of those subject you really could draw several conclusions from given the evidence. The Empire may still be very heavily forward deployed even with its high speed transport and communications. We can’t really know since every book that involves an Imperial base inevitably portrays it as something pathetically weak for one X-wing squadron to defeat.
Alot of the novels took place outside the Core as a rule... the Rim especially, which tends to have alot of volume but not neccesarily the same level of support. Of course at that time the Empire was viewed as more "hands off" in terms of territory - its military forces seemed to be more "space based" in the sense of (I think) Marine Expedtionary forces and such. you basically just shuttle the troops where you need them. Nowadays we have explicit mention of tens of trillions of soldiers in the Imperial Army alone, and that can mean hundreds of thousands/millions of troops per world, handily.

Not being a military type though, could you explain the whole "forward deployed" bit? The context defeats my comrphension I am sorry to say :oops:
Well yeah the relationship may not be entirely linear, and a lot of the differences are going to be internal but still something has to give a reason for guns of larger sizes. Otherwise people would just stop at a certain size. They kind of seem to as it is with the heavy turbolaser turrets on the ISDs being not that huge, but we don’t see much detail on any much larger ships.
Most of the time we see "big guns" like that they seem to be involved as a bombardment weapon or a "terror/intimidation" weapon rather than a practical militry weapon - think of the Death STars, the Eclipse SSD, etc. I suppose bigger guns might be designed for planetary assault roles (to help overwhlem or punch through defense shields perhaps?) or attacks against battlestations where targeting is less of a concern compared to raw firepower.

Recoil control and redundancy could also be limitations - balancing number of guns vs power of guns (more power per shot vs having fewer guns to fight with.)
I don’t think it mentioned rate of fire, but I would expect it to be poor or limited by more then just aiming at full power. The max firepower is probably like a supercharge for a piece of magnum artillery. It must have been of some use though, otherwise they could have replaced it with a couple small scale turrets by several years into the war.
It didn't mention rate of fire, but the available information in the ICS gives us enough to extrapolate that data from. And its a bitch not just for aiming - think about center of mass or balance - firing that thing off axis could give the ship a huge push in the wrong direction (spinning it away, etc.) If it were poorly aimed/maintained or coordinated there could be all manner of problems.

Its also possible that those bigass guns were simply some crazy idea some weapons designer came up with but could never sell to the military, and then decided to foist them off on the corporations cheap - it would be entirely something the Separatists would buy into.

Frankly though if any ship did carry them as standard they'd have to be somehwere on the scale of an Executor I'd expect and even then stillb e fixed axis.
It could well, no machinery likes heat. Failure will become a lot more likely for all the components, and they may have some kind of limited time rating at peak power just like a computer power supply.

I mean you look at an engine, you run it to the redline and it should keep working fine, but your placing it into an extreme operating environment. At that point it wont take much to push it over the edge.
True. We're used to thinking of SW ships running at full power for combat purposes and not likely having any trouble besides running out of power sooner, but that seems largely short term thinking. For all we know it could wear out components to be maxing out the powerplant like that far more quickly than if oyu ran it at a lower level.) Hell we dont neccesarily know WHAT full power is expected to be used for. For example, it may be designed purposesly to be used against planets in a BDZ - sort of the equivalent of a naval ship carrying tactical or strategic nukes onboard - rather than a "standard" combat configuration. I mean the nukes you carry COULD also be used in combat if you wanted to or needed to, but that wouldnt neccesarily be what they were designed for.

Plus I'd want to run a starship with at least some practical level of safety margin in the equipment, just in case. Even in combat.
Heavier hits may be worse because they dump so much energy into the shield in a very short burst that it starts causing localized damage. Whatever radiator-wiring-heat pipe kind of setup they have going WILL have a hard limit to how much it can move. However exceeding that limit for a moment may not cause loss of shields, the first time. It might take a couple overloads and then the shield fails or automatically shuts down in the hope it can restart later to avoid being destroyed.
True. Any delays (however small) in moving the firepower the shields take from opposing ships is something that could be exploited if you exceed the requisite threshholds (in this case the amount of energy that could be moved and how quickly it was delievered.) Or it may just accumulate damage due to inefficiency (no matter how efficient, a large enough blsat could still cause nasty damage inside if that percentage "lost" in the transit is great enough.)

Hell this introduces a whole level of compelxity to shielding - there are lots of relevant factors the ICSes never accounted for, and in theory you could optimize shields to beneift certain traits over others (larger heat sinks but with weaker radiators for example.)

Angling is an interesting thing to think about. On the one hand it could mean it works like sloped armor, and tries to deflect the incoming fire away. On the other hand it could also mean that the shields are positioned in such a way as to angle the energy the impacts the shields into generators which are further away. That way the generators closest to the impact area aren’t overloaded as quickly. This would be advantageous if you are mostly being attacked from one direction.
True. We have seen bolts occasionally ricochet off intact, but more often than not we have the well-documented "splintering" effect of bolts hitting shields. I'd say that the shields are designed to break up the "bolts" (whatever they're composed of) and then try to reflect away as much of the energy as they can. Surface area seems to benefit here, as we soemtimes see bolts "spread" over a shield surface (which has an added benefit that even if it isn't reflected, then it suffers a substnatial loss of penetration and a reduced probability of mechanical/explosive damage being induced. You need to deliver energy rapidly and on a very small area to mimic an explosive, after all.)

The ability of the shield ot "manipulate" the bolt itself (and the interactions thereof) are just another aspect of the overall shield system that is apart from the heat sink/radiator setup.
We’ve also been told that shields lie right on the hull, which may be a different position from ‘angling’ or it may be more complicated then that and they can do both, with no actual ‘angle’s involved. Just an expression. Either way it does sound like the armor/hull is meant to absorb some of every impact. This makes sense, because a low intensity blow on steel type armor shouldn’t cause any permanent damage, even if its repeated many times. So you’ve got another energy sink at work.
Shields evidently have a definite volume which seems to benefit their protectiv qualities. Keeping the shields closer vs projecting them farther away seems to comrpise different sorts of tradeoffs (increase/decrease in surface area, interaction volume, energy usage, etc.)

Funny enough, what you're saying hints at an idea Brian Young once had - that the thick/dense armor SW ships seem to like may serve as a sort of "heat sink" ofr shields in and of itself (shields and hull can interact to some level).

Larger diameter shells hold a lot more high explosive, so they generate destructive blast overpressure a lot more readily. The fragmentation is much worse, because it can pierce a lot more materials from being heavier and faster. This all important because steel and similar materials have impact/blast resistances below which they just don’t take any real damage. Smaller artillery shells like 155mm and less tend to be mainly fragmentation weapons. On something like a ship when you have a lot of enclosed spaces, a small caliber round is going to riddle bulkheads with shrapnel, while a big shell is going to tear the bulkheads down. Bombs are worse still and can make actual big craters down into the decks.

So you move from damage that just causes personal and equipment damage, to damage which is seriously demolishing the strength of the target and which defeats light internal armor layers meant to localize damage. That can go a long way towards allowing flooding and fires to spread past the immediate damaged area.
Flooding wouldn't be an issue, but defeating intenral armor/compartmentalization probably would be a big one (I gather that given the reactor power and acceleration/recoil magintidues SW ships deal with, even some weakening in it could have nasty effects.)

As I said before, given observed effects of weapons and shield interactions, one of the big purposes of shields and armor (evne just stormtrooper armor) is to limit/nullify the possibility of explosive damage by controlling the rate and area/volume at which damage hits the ship.
Image

This shows damage to USS Savannah after she was hit by a 3,100lb Fritz X guided bomb in 1943. This is the upper end of air weapons for WW2, excluding the super massive Tallboy and Grand Slam bombs. You can see how it just tore apart the structure around the burst, and even peeled up the ships armor deck. The ship was only saved from a major ammunition fire causing an explosion by flooding through a hole blown by the time.
yeah. Ouch.
These two images show torpedo damage to USS Houston, and then a detail of emergency repair work done at forward bases. You can see how they first bridged the gap across the hole with more girders, and then latter filled the shell plating back in. That left her good enough to return to a proper yard to have the damage repaired back to orginal specs.
http://www.researcheratlarge.com/Ships/CL81/Plate09.jpg
http://www.researcheratlarge.com/Ships/CL81/Plate11.jpg
Was this at a time still when torpedoes were meant to bypass armor protection by striking the hull from under water?
Now Star Wars ships have different damage mechanisms going on, but I think a lot of this will still hole true in general terms. Particularly since like you point out some ship to ship weapons are projectile based to start with.
True. But Its possible that what you said could hold true in some fashion even if its not a strict parallel (EG defeating compartmentalization, weakening structures that might pertain to the engines or heavy weapons or sields, etc.) Hell, its possible some shield failures can be attributed to internal damage fucking up the generator bracings.

Ships with damaged structure can have serious problems from the weight of water pouring in. This is why many torpedoed ships break in half when they sank, particularly smaller ones like destroyers. Torpedoes are the best thing you could ask for to blow holes in structure since the water tamps the blast.
Yeah, I've heard of that phenomenon. I think it concerns the differences in the speed of sound in different mediums and the times involved.

Yeah no one has used really thick armor since WW2. But modern carriers still do have major armoring, but its spread into a series of 2in and 1in thick decks and all across the hull side so that it can detonate projectiles high in the ship and try to localize the damage. Below is a diagram of the armor on a Forrestal Class carrier. Thicknesses in millimeters and all of the armor also serves as structure.
Image

Actually trying to stop a heavy missile outright was futile as people can too easily design a bigger warhead, but several armor decks can ensure it explodes before it reaches the vital magazine and machinery spaces. Even in WW2 some navies including the USN were already moving to armor schemes like this, in which some certain damage was accepted in favor of reducing the chances of any catastrophic damage. Torpedo protection always had to work this way.
Is that because the carrier decks need to be supported (as does carrying the planes and stuff alone) or is it because Carriers are such big, expensive valuable targets thta they warrant at least some effort at preserving them?
Imperial ships seem to rely on a single massively thick outer armor hull, but they probably have a lot of thin armor layers behind that as part of the structure of the hull. Such huge ships would mean defeating heavy blows with armor more realistic, because the bigger the ship the more volume for the surface area. So armor thickness can go up.
There's also the acceleration and recoil issues - powerful engines and weapons would need some heavy bracing too, and I imagine building the ship to stand up to those tolerances would neccesistate something along the lines of what you say. (unless they used forcefields, like the Separatists seem likely to)
I don’t know how much long range they can really do if they have such relatively high times of flight for the bolt. I forget what turbo lasers have been clocked at, but its nothing you couldn’t think about evading by chasing salvos. Some shots would still hit, but you’d quickly have a high ratio of misses even at a few hundred kilometers. Even if they have no more then modern radar and telescope technology for targeting engagements at thousands of kilometers should be trivially easy in terms of fire control. But the guns may be more inaccurate then we know at a range, and enemy ships can move pretty fast. I suspect this is why so many battles come down to point blank range. Both sides have every incentive to close with each other and long range capability is only really relevant when one side has greatly superior speed but inferior position and wishes to fight an indecisive battle.
Ugh. This comes down to what you essentially think a turbolaser or blaster or laser weapon is. One camp (like Curtis Saxton) thinks they're mostly or all massless, lightspeed beams. THere are others who think they aren't but may be somethign else (particle beams, plasma bolts, projectiles, etc - they can't quite agree.) Me I threw my hands up in the air and said "they're all glowy bolts and may just use all kinds of weapons that just happen to look like glowy bolts" because its a fucking pain in the ass to reconcile it all.

I won't comment on at or near lightspeed weapons, but the "typcial" slow moving bolts we see probably are either short ranged warheads designed specifically for close range work or some sort of guided cannon shell (both of which could be justified from onscreen and EU evidence.)
Post Reply