[Acceleration] Whitestar

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[BL]Phalanx
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Post by [BL]Phalanx »

Connor MacLeod wrote: Yes, Season 1 of Legacies. It was also the one with the odd figures (that many people discount.) It wasn't stats on the Sharlin either (supposedly, the Sharlin is much larger) - this was one of the smaller classes of cruiser (light cruiser perhaps.)

The given speed is probably not a real-time estimate but possibly either a top speed or an average cruise speed (limited by power output, navigational shielding against radiation or interstellar debris, etc.)
It could've been a Leshath scout.... those are pretty small, right? They also look similar to a Sharlin in shape, I believe.
Connor MacLeod wrote: There has been some mention made of ItB when the Nova rammed the War Cruiser, as to why it didn't get out of the way (or how, for that matter, it let the vessel get that close.) I suppose that vessel may have been damaged, but I nver recalled seeing anything that indicated the engines were.
Well, we know that in most engagements, the Minbari could pick the range. But when EA goes on an offensive, they will *want* to jump out as close as they can to a target, to force the Minbari to fight at shorter ranges. If the EA jumped out to attack a Minbari installation with a swarm of ships, the Minbari would have to fight at close range, and they wouldn't be able to simply accelerate out of range.

It's possible that the Warcruiser that was rammed was in exactly that situation.

Because of that, I don't think that scene can be used to conclude that Sharlins are just as much pigs in space as EA ships.
Connor MacLeod wrote: It wasn't from a filmed episode - it was from one of the JMS-released unpublished scripts for Crusade's season 1 - "To the Ends of the Earth" - the one where the Excalibur faces off against a Shadow hybrid. I believe it was the fastest speed they could achieve in realspace:
INT. EXCALIBUR - BRIDGE

We PAN to FIND Gideon in the command chair, Matheson nearby.

GIDEON
What’s our current speed?

MATHESON
Point seven five percent of light speed. We can’t go any faster than that in normal space.

GIDEON
Assuming they have the same limits we do, the laws of physics being what they are, their maximum speed should be roughly the same as ours.
Note that "limits" and "maximum" speed may be explained by several possibilities:

- Limits in protective capability of navigational deflectors

- limits in detection/reaction time to objects in path of ship (This need not apply strictly to large objects, but smaller objects as well.)

- lower speeds would also ignore time-dilation and other effects of higher relatavistic speeds (I believe there are rather unpleasant side effects.)

- increasing the max speed causes a correlating decrease in operational endurance - that is, it takes up far more energy to achieve higher speeds than lower. This is somewhat questionable and probably unlikely, since this would only really be a problem at VERY high velocities (near-c) and that they had no problem sustaining this velocity.

- there are reaction-mass concerns (or similar concerns) aboard the ship that limit speed. Again, questionable, but not impossible.
If the data on the Minbari ship moving at 0.2 c is correct, then I doubt the limitation is due to concerns for collision with debris. BTW... as far as I know, most B5 ships don't have "navigational deflectors", at least not in an energy-field form.
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Connor MacLeod wrote: Again, you're thinking that because they may have safeties in place to prevent accidental self-destruction, that means that they can't be made to self destruct at all (IE deliberately). In the case of the Trigati, that WAS possible. Being of Minbari tech (mostly) and with evidence to believe that the power system was NOT Vorlon in origin, we could believe a similar capacity exists in the Minbari, unless you can provide a reasonable amount of proof to assume otherwise.
Well, since you've shown that the Whitestar uses a Minbari power system, it is most likely that it *can* be set to deliberately blow up.
Connor MacLeod wrote: An EA Omega class destroyer is pursuing a small Drakh ship and manages to force it to crash land on a planet being dug up by IPX. In the process, the Drakh ship inflicted enough damage on the Omega to cause its reactor to go critical, and it blew up. I could dig out the quotes if neccessary, but that would mean finding my Crusade CDs.
Oh, okay. Well that's certainly still a minority of the cases we've seen.
Connor MacLeod wrote: If we use B5 Wars, the "Antimatter converter" technology infers they have reliable methods to create antimatter (reliable and efficient enough it makes a viable weapon comparable to something simpler like a particle beam or laser). That alone would infer they have antimatter technology.
As a weapon, yes. But not necessarily as a power source.
Connor MacLeod wrote: Actually they could. Based on visuals for the ep they were obviously in orbit around the planet maybe at most a few tens of thousands of km away (farthest distance for a "high orbit" around a planet I've seen is 134,000 km, but most seem to infer at least 36,000 km.) Convenience would probably dictate geostationary (Presumably Sheridan needed the WS to be in line of site of his com so he could transmit the signal)
Problem is, you don't know what geostationary is. You don't know the rate of Z'ha'Dum's rotation, which would dictate what altitude a ship must be at to be in geostationary orbit.
Connor MacLeod wrote: Which means it would probably have to be roughly close to Sheridan's position over that dome, and that geostationary is probably quite a reasonable assumption in this instance (the WS would need to keep a relatively "consistent" orbit over the same point to ensure that it was within LOS of that dome. Besides which, it would make sense to have it in a fixed point Sheridan knew, which he could then return to (esp if this is along a path he already knew or took.).

The only modifying factor might be Z'ha'dum's gravity, which isn't earthlike IIRC (I know invoking darkness put it at 1.3g, but I dunno if the series ever clarified.)
Eh, 1.3 g at the surface, which falls off with distance. It could probably be neglected without sacrificing too much precision.
Connor MacLeod wrote: I came in to help clarify some of Ted's points :) or at least try to.
I see... :)
Connor MacLeod wrote: In this case, one or more seconds up to the timeframe limit for the WS's attack dive. But the timeframe isn't really as relevant as the actual energy output of both bombs and WS. (If we're comparing to say a hundreth of a second, the WS will generate 100x the destructive output of the bombs in a full second.. which STILL violates the limitation the bombs impose. Besides which, the circumstances would dictate that if timeframe were a factor, the time it takes from start to finish would be the "accurate" time.)
Well, do we even know if it's possible for a self-destruct to release *everything* its got? If it can, and it's still less than 1000 MT, then we're looking at power generation for a Whitestar that's gonna be a *lot* lower.

If we're going to gauge it by the kinetic energy it could've built up on the ramming, that's another thing.
Connor MacLeod wrote: Except there IS no way to trace the time - there are no real indicators. Besides that, I did reread it, and there's a "Break" in between when Vir and the technomages were on the ship, and when they left. Its entirely possible to argue that they had to wait several days onboard the ship before getting closer.
There *is* a way to trace the maximum time, Connor. Simply look at that event and how it fits in with the rest of the timeline. For example, we know it couldn't have lasted 15 years... because 15 years after "A Call to Arms" is Crusade, and we know Vir and the Technomages were finished well before that.

That's just the extreme I can think of at the moment. If we continue to work at it, would could come up with the maximum time it took, and thus the most conservative estimate for the time of construction.

And why would Vir's impression be inaccurate? The SPK *was* fully functional. It was able to move and its weaponry destroyed Xha'Dam, which was planet-sized IIRC.
Connor MacLeod wrote: I'm pointing out that both sets of calcs involve guesswork, so that means that to accept one is to accept the other.
One calc involves a "floor" though, where we can actually get the most conservative calc possible. In this case, the maximum amount of time that passed.

The other calc does not have a "floor"... someone can use different numbers and get lower acceleration figures.

Well, okay, at some point there's a "floor" to it... but it would probably give the Whitestar a really low acceleration.
Connor MacLeod wrote: To a certain extent its fair to say their construction abilities improved - we know they switched to a "quantity over quality" method, but its irrelevant to my two points:

1.) They CAN increase the power of the ship, but this requires a VERY long time, measured in centuries or millenia (at least in the case of the Battlecruiser.) Even then, assuming that the "newer" ships are going to be vastly superior ot older ships sort of violates that "primordial ships being more powerful than the modern ships" phiosophy that gets so commonly tossed about, doesnt it?
Yes, that was in the past though. Those primordial ships required centuries to develop *a long time ago*. We don't know their production rates as of B5 series' run.
Connor MacLeod wrote: 2.) Even if we disregard the above, there is still the patrol cruiser to contend with and which directly contradicts the Armies of Light and Dark calcs (stated value versus estimated one.) Patrol ships aren't expressly primordial (they're still made in ancient times.) If the SPKs can be constructed in hours and minutes, are we going to assume that the patrol cruisers and smaller vessels take mere seconds?
Well on the other hand, Connor, those ships are alot more dense than the SPK... which is mostly empty space. Besides, we're not saying the SPK can be built in hours and minutes... we're saying it takes at least a day. If you want us to really be conservative, we can do that too. For now, how about 15 years? ;)
Connor MacLeod wrote: 3.) I might point out that the Triad can take "minutes" to construct dozens of vessels from pure energy, but those vessels aren't "real" in the same fashion that I am - they only "Exist" so long as the Tri keep feeding them energy.
I don't know what this has to do with the Shadows.
Connor MacLeod wrote: I don't recall if Ted said they are arbitrary or not. If they're "reasonable" - then how is this any different from the "reasonable" numbers used to justify the SPK construction rates?
Because anyone can still be yet more conservative, whereas with the SPK production rate, there *is* a limit.
Connor MacLeod wrote: Not neccesarily. It would depend on the circumstances.
What do you mean?
Connor MacLeod wrote: Go ahead, but I know for certainty that its STILL an implied estimate. While Vir's biologcal concerns are never mentioned, its never expressly denied either. And with the mention of the "break" between scenes occured while still on ship (pages 43-44 in the book, if you wish to check for yourself.) Its the pure ambiguity and lack of any definite time indicators that tell us this (at least to my knowledge.). And even then, there are quite a few OTHER problems with the calc. The main point IS though that we have no reason to take THIS estimate over a stated value(s) like we have from Wars of the Ancients, and its unlikely that SPKs can be produced infinitely faster than the smaller and weaker ships.
Like I said, we can trace the timeline. At most it's 15 years.
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Post by [BL]Phalanx »

Connor MacLeod wrote: There are certain observed limits.

- I mentioned the benefits and requirements for Geostationary orbit and Sheridan's need to communicate with the ship and find it.
As mentioned before, we don't know Z'ha'Dum's rotation speed.
Connor MacLeod wrote: - We see the ship in orbit around the planet, and its close enough that the planet would occupy quite a bit of the screen, even though only part of it is visible. That alone sets some limits (its hard to argue millions of km off if the planet is occupying quite a bit of the screen, is it not?
*Is* there a method to measure distance on a 2 dimensional visual? If there is that might settle it.
Connor MacLeod wrote: - There are limits to how far one can be from a planet and still be "in" its orbit.
Use that, then.
Connor MacLeod wrote: - By the end of the incidernt, the observed Velocity of the WS was rather slow (less than hundreds km/s, probably no more than a few tens of km/s) - Anna Sheridan easily had enough time to look up and see it coming down. If anything, my 1200 km/s estimate was generous.
It looked like 1 or 2 km/sec, but it *had* just collided with the dome.
Connor MacLeod wrote: High mass would argue in favor of far *lower* accelerations and velocities. Lower mass would faver higher velocities. Either way it works, the poitn would stand.
I know a higher mass would mean lower accelerations. That's exactly it. To be conservative in *this* case means picking a higher mass... but where exactly do we stop? What's the highest mass possible?
Connor MacLeod wrote: Whether or not its reasonable. There's only so far you can stretch a given value by changing the variables (200,000 might be reasonable, 20,000 might be, or even 2,000 might be.. but 200 may not be. I dunno.)
In this case, though, we must stretch it to the point where no one can argue it, to make our case air-tight. Unfortunately, I have a feeling that if you do that, your numbers will be very low, indeed.
Connor MacLeod wrote: Then it favors a lower end mass. That doesn't neccesarily mean that the figures are going to be higher though.
Except that, as far as I know, there's no way to calculate the mass based on that incident, making it subjective.
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Post by Connor MacLeod »

[BL]Phalanx wrote: It could've been a Leshath scout.... those are pretty small, right? They also look similar to a Sharlin in shape, I believe.
Don't thinks o. Lestaths look more like the Tinashi frigates - which have the elongated main body sections and more backwards-sloping fins.

This is a smaller class of War Cruiser observed several times throughout the series alongside the larger models.
Well, we know that in most engagements, the Minbari could pick the range. But when EA goes on an offensive, they will *want* to jump out as close as they can to a target, to force the Minbari to fight at shorter ranges. If the EA jumped out to attack a Minbari installation with a swarm of ships, the Minbari would have to fight at close range, and they wouldn't be able to simply accelerate out of range.

It's possible that the Warcruiser that was rammed was in exactly that situation.
Jumps to realspace aren't instantaneous. Any opening jump point would alert the Minbari (And at this point in time, who else would they think it is?) If the Sharlin had say 100 gees accel minimum, it should be easily able to keep away from EA ships, unless they were totally caught by surprise or for some reason couldnt turn (inertia, etc.)
Because of that, I don't think that scene can be used to conclude that Sharlins are just as much pigs in space as EA ships.
I didn't say they had the same acceleration as EA ships, I was pointing out that their acceleration may not be significantly greater than EA ships (or other races ships). And I'm not sure the scene in question involves any sort of fixed faciilty.
If the data on the Minbari ship moving at 0.2 c is correct, then I doubt the limitation is due to concerns for collision with debris. BTW... as far as I know, most B5 ships don't have "navigational deflectors", at least not in an energy-field form.
Collision with interstellar debris (As well as radiation) is a known dangerr to the crew and ship itself - it would need some way to protect itself from damage. This would invaribly require some form of force field (EM fields should work for the most part) since its hard to imagine a natural material capable of standing up to sustained impacts at relativistic speeds.
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Post by Connor MacLeod »

[BL]Phalanx wrote: Well, since you've shown that the Whitestar uses a Minbari power system, it is most likely that it *can* be set to deliberately blow up.
Slight clarification: I showed they used reactor systems like most YR, and not the Vorlon capacitors. Its only inferred from the fact the rest of the ship is Minbari tech that the reactor is (or rather Vorlon-enhanced Minbari, presumably.)
Oh, okay. Well that's certainly still a minority of the cases we've seen.
I'd include the Hyperion in Severed Dreams, but both would be indicative of instances where the safeties failed either due to damage or simple bad luck.
As a weapon, yes. But not necessarily as a power source.
If they can use it as a weapon, they'd have to likewise be able to use it as a power source. (if it were an antimatter particle weapon, they'd have to have pre-made antimatter stored, which could as easily be used to power the ship as fired as a weapon.) But the description of the converter is fairly clear - the weapon converts a portion of the hull matter into antimatter directly - so again, if rthey can do it for a weapons system, they should be able to convert matter to antimatter as a power system.
Problem is, you don't know what geostationary is. You don't know the rate of Z'ha'Dum's rotation, which would dictate what altitude a ship must be at to be in geostationary orbit.
I could be wrong, but we're probably not talking about a huge difference from an Earthlike. People like Justin, Anna, and Morden (or Sheridan for that matter) did not appear particularily uncomfortable on the planet, despite even the higher gravity.
Eh, 1.3 g at the surface, which falls off with distance. It could probably be neglected without sacrificing too much precision.
Ossus did bring up a good point that has to be addressed as well, though, so it may be lower gravity (not that this would be bad - in which case models based off MArs or another low-gravity planet might work.)

The other points I made about the visuals and line of sight seem to favor a closer distance (especially given the ending velocity of trhe ship.) This can still favor a distance in teht housands or tens of thousands of km.
Connor MacLeod wrote: Well, do we even know if it's possible for a self-destruct to release *everything* its got? If it can, and it's still less than 1000 MT, then we're looking at power generation for a Whitestar that's gonna be a *lot* lower.
Why wouldn't it? The point of a self destruct is to not only destroy the ship, but probably to take out anyhting within a close proximtiy to it. This would dictate an energy release comparable to what the ship itself could withstand, if not greater.

I suppose we could assume its less, but that strikes me as a bit pointless.
If we're going to gauge it by the kinetic energy it could've built up on the ramming, that's another thing.
There's also orbital bombardment. Given the estimated timeframe from purely "on screen" the WS would have had well over a minute to bombard the planet (which would have caused damage more quickly tham the kamikaze run or a probable rammingattack would, were it practical.) Given the lack of response in the WS's own dive, There's no reason to assume that bombardment would not have worked (dissipation wouldn't be a factor unless they were so high up they would completely dissipate before striking.)
There *is* a way to trace the maximum time, Connor. Simply look at that event and how it fits in with the rest of the timeline. For example, we know it couldn't have lasted 15 years... because 15 years after "A Call to Arms" is Crusade, and we know Vir and the Technomages were finished well before that.
Actually, you sort of have a point (but not quite in the way you stated it I think.) We know Vir probably did not spend a LARGE amount of time down there- noone noticed him absent for a long period, he hadn't aged significantly...and the pinnace could not carry extensive supplies. A more accurate upper limit probably owuld be something like a week, maybe a couple days. (two weeks maybe, but that might be stretching things.)
That's just the extreme I can think of at the moment. If we continue to work at it, would could come up with the maximum time it took, and thus the most conservative estimate for the time of construction.
True, although this simply means that there is another explanation to explain this along with the WArs of the Ancients.
And why would Vir's impression be inaccurate? The SPK *was* fully functional. It was able to move and its weaponry destroyed Xha'Dam, which was planet-sized IIRC.
We know it could move some, and it had some measure of firepower. This doesn't neccesarily mean "fully complete."

Vir's impressions would be questionable on the basis that his comments would not necceesarily be considered a technical description, but rather "off the cuff" comments. By what is he judging the completion of the vessel by? He only thought it "Appeared" to be nearing completion. For that matter, was it neccesarily the same PK as the two he saw before? Xha'Dam is a big place with lots of winding areas.

As an analogy, lets use the "War Zone" excalibur scaling analogy you mentioned during the whole discussion of the tim Earls size charts. You yourself argued that dialogue can be flawed if there is reason, and that people can get estimates wrong. The person might just give an eyeball guess rather than reading off of technical schematics or having done research about the stats or capaiblities. The same is equally true of Vir - moreso because he does not appear to have access to those sorts of stats - he seems to be arguing it based on the appearances to his own eyes (Whereas Gideon could very well have been briefedon the ship or received technical data which included the size, and he was simply repeating said information.)
One calc involves a "floor" though, where we can actually get the most conservative calc possible. In this case, the maximum amount of time that passed.
Partly true, but it still involves assumptions about the data involved, no matter how "Reasonable" they are considered.
The other calc does not have a "floor"... someone can use different numbers and get lower acceleration figures.

Well, okay, at some point there's a "floor" to it... but it would probably give the Whitestar a really low acceleration.
Quite possibly. Again though, the difference lies not in the difference in the kind of limit it is, but rather the fact it involves "reasonable assumptions." rather than direct data.
Yes, that was in the past though. Those primordial ships required centuries to develop *a long time ago*. We don't know their production rates as of B5 series' run.
You misunderstand. The "centuries" of development/enhancement occur as part of the ship's natural growth. They can indeed accelerate it to develop the ships in a shorter period of time, but this sacrifices the raw power capability. Primordials are FAR more powerful than the modern vessels (because the Shadows piloted the primordials rather than the YR) - They still keep them and will bring them out should neccessity dictate it (the need to fight against other FO's, for example.)

If they could build "primordial" ships in a far shorter timeframe than what "ancient" vessels could be built in, not only would the "primordial > ancient" fact be invallid, but the "quantity over quality" nature of the artificial growth would be pointless.

And we DO have some good idea of production rates for modern vessels, based on the patrol cruiser (the low end and smallest cruiser hull.)
Well on the other hand, Connor, those ships are alot more dense than the SPK... which is mostly empty space. Besides, we're not saying the SPK can be built in hours and minutes... we're saying it takes at least a day. If you want us to really be conservative, we can do that too. For now, how about 15 years? ;)
More dense, but substantially smaller (want an idea of the scale involved? Remember the point defense turrets for the PK anmd how massive they were relative to the excalibur?) How many turrets does that thing have? How about the skeleton relative to that? That could very well amount to a SUBSTANTIAL amount of cruisers.
I don't know what this has to do with the Shadows.
Comparison of capabilities. For the most part, the FO's are on a rough order of magnitude parity with one another, but some obviously possess better abilities than the others. If a single Tri requires minutes to create ttemporary constructs (in the dozens, maybe at best hundreds including fighters), would you argue that the Shadows would be capable of similar or better feats creating a similar number of permanant warships?
Because anyone can still be yet more conservative, whereas with the SPK production rate, there *is* a limit.
No, there isn't. Both are still ambiguous incidents where the variables are open to some fairly wide interpretation, apparently.
What do you mean?
"luck" may not be part of it as much as you think, depending on how the scene played out. Visuals are objective, but human perception of them are subjective.
Like I said, we can trace the timeline. At most it's 15 years.
And I said, there's more to it than just the timeline. The construction rate estimates are questionable for a number of reasons, as I have presented.
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Post by Connor MacLeod »

[BL]Phalanx wrote: As mentioned before, we don't know Z'ha'Dum's rotation speed.
Again, true, but its still tolerable by humans and other beings that it probably isn't significantly different from an "earthlike" planet.
*Is* there a method to measure distance on a 2 dimensional visual? If there is that might settle it.
I know Evil S'tan has attempted to do scalings from planetary distances before. you might ask him if its possible, but off the top of my head the distance of the WS from Z'Ha'Dum reminds me alot of the Avenger at Hoth in TESb - which means we're probably talking around 20,000-36,000 km.
Use that, then.
Will see what I can do.
It looked like 1 or 2 km/sec, but it *had* just collided with the dome.
Perhaps. Depends how high up the dome is from the balcony.
I know a higher mass would mean lower accelerations. That's exactly it. To be conservative in *this* case means picking a higher mass... but where exactly do we stop? What's the highest mass possible?


Its not just a matter of conservative, its a matter of consistency.
In this case, though, we must stretch it to the point where no one can argue it, to make our case air-tight. Unfortunately, I have a feeling that if you do that, your numbers will be very low, indeed.
Who said it needs to be 100% certain? I used to operate under those assumptions, and it was foolish of me to do so. We rarely operate under the assumption of total certainty.
Except that, as far as I know, there's no way to calculate the mass based on that incident, making it subjective.
True, but again there are still certain things working against the notion that they are totally arbitrary (its hull is organic.) - plus there is the fact it has to be able to be moved so it cannot be too massive. And as you said, it is relatively easily moved around by pulse cannon fire, so it cannot be too massive.
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Post by [BL]Phalanx »

Connor MacLeod wrote: Don't thinks o. Lestaths look more like the Tinashi frigates - which have the elongated main body sections and more backwards-sloping fins.

This is a smaller class of War Cruiser observed several times throughout the series alongside the larger models.
But in no official source is a smaller class of War Cruiser ever mentioned...

Where else have we seen this smaller class of War Cruiser on screen?
Connor MacLeod wrote: Jumps to realspace aren't instantaneous. Any opening jump point would alert the Minbari (And at this point in time, who else would they think it is?) If the Sharlin had say 100 gees accel minimum, it should be easily able to keep away from EA ships, unless they were totally caught by surprise or for some reason couldnt turn (inertia, etc.)
Yes, but if they were defending a fixed installation, they *wouldn't* be able to break from their formation. Remember "Acts of Sacrifice"? That Narn cruiser could've gotten away and saved itself, but instead interposed itself between the fleeing transport and the Centauri warships.

It's possible that Sharlin was in the same kind of situation.
Connor MacLeod wrote: I didn't say they had the same acceleration as EA ships, I was pointing out that their acceleration may not be significantly greater than EA ships (or other races ships). And I'm not sure the scene in question involves any sort of fixed faciilty.
I am not sure of it either, but it's one possible explanation. Hence the scene can't be used to conclude *for certain* much of anything about Minbari acceleration.
Connor MacLeod wrote: Collision with interstellar debris (As well as radiation) is a known dangerr to the crew and ship itself - it would need some way to protect itself from damage. This would invaribly require some form of force field (EM fields should work for the most part) since its hard to imagine a natural material capable of standing up to sustained impacts at relativistic speeds.
We have heard no mention of energy-defenses for standard Minbari ships. How do you know they *must* use EM fields or some other fields to deflect debris? This is sci-fi, and if one particular universe has its ships travelling at significant fractions of c without using anything other than bare hull, we have to accept that.

Besides, another possibility is point-defense weapons or tractor beams deflecting debris away before it can impact. We already know that the Minbari have tractor beams, and we know their guns are very accurate. Remember "In the Beginning", when Mitchell is shot down? Moments after his fighter is trashed, he ejects, only to have his ejecting pod shot up a split-second later.
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[BL]Phalanx wrote:
Connor MacLeod wrote: Don't thinks o. Lestaths look more like the Tinashi frigates - which have the elongated main body sections and more backwards-sloping fins.

This is a smaller class of War Cruiser observed several times throughout the series alongside the larger models.
But in no official source is a smaller class of War Cruiser ever mentioned...

Where else have we seen this smaller class of War Cruiser on screen?
If the magazine Babcom is canon, then there are some variations it could be. It could be a Sharaal, which is suppossedly much older and could be smaller (it doesn't say either way, just that it looks like the Sharlin).
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Post by Connor MacLeod »

[BL]Phalanx wrote: But in no official source is a smaller class of War Cruiser ever mentioned...

Where else have we seen this smaller class of War Cruiser on screen?
In the Beginning - the Grey council ship (both before Duhkat's death and during the Battle of the Line), a few otehr times (I know B5tech.com had a small cruiser that was close to b5 that WAS small.)

Brian's done alot of the scalings on the small War Cruiser. I did scalings that identified the larger ones as well (1000-1200 meter one is the most common, and a rare one about a mile long (seen only once or twice in season 3)

There are official scalings though - one has put the War Cruiser at 600 meters or so. The largest was the Sierra Sharlin at 1200-1300 meters.

Connor MacLeod wrote: Yes, but if they were defending a fixed installation, they *wouldn't* be able to break from their formation. Remember "Acts of Sacrifice"? That Narn cruiser could've gotten away and saved itself, but instead interposed itself between the fleeing transport and the Centauri warships.
Possibly, but I never recall the Minbari actually establishing any bases that EA attacked (even checking B5 Wars "Atlas of EA wars" sourcebook, which is the most compreehnsive on the war besides ItB) They were fighting a mostly defensive war at the time, remember?

Besides which, being forced to defend a stationary target does not completely eliminate the ability to manuver. Even IF they are defending a station, they can still manuver around, and it requires the War Cruiser move less than a kilometer's distance to get out of the path of the ship.


It's possible that Sharlin was in the same kind of situation.
Possible, but unlikely. As I said, even in taht position, the War Cruiser would have had to been in dire straits to be totally UNABLE to move.

I am not sure of it either, but it's one possible explanation. Hence the scene can't be used to conclude *for certain* much of anything about Minbari acceleration.
Another possibility is that combat requires the use of a majority of their onboard power generation ability (for weapons, sensors, defenses, etc.) which reduces their top acceleration rate.

when not in combat, they probably could afford to divert more power to acceleration, and hence travel much faster than they could in noncombat situations.
We have heard no mention of energy-defenses for standard Minbari ships. How do you know they *must* use EM fields or some other fields to deflect debris? This is sci-fi, and if one particular universe has its ships travelling at significant fractions of c without using anything other than bare hull, we have to accept that.
WE've heard no mention about HOW they protect ships against interstellar debris or radiation. Just becaues you have heard "no mention" of them doesnt mean they don't exist.

Besides which, we've had rather ample proof of B5 ship's against kinetic impactors of varying sizes and at speeds nowhere NEAR close to relatiavistic. While some aren't good examples really (the Omega colliding in SD, the Nova in ItB) there are others that ARE. I'd be really hesitant to assume that their bare hulls would be the ONLY alternative.
Besides, another possibility is point-defense weapons or tractor beams deflecting debris away before it can impact. We already know that the Minbari have tractor beams, and we know their guns are very accurate. Remember "In the Beginning", when Mitchell is shot down? Moments after his fighter is trashed, he ejects, only to have his ejecting pod shot up a split-second later.
JPL supposedly suggested something like this. But they also mentioned the use of magnetic fields, ironically.

The problem with this, though, is that inert matter in realspace is going to be harder to detect than a starship. This would require active sensing, and you probably couldn't travel too fast (You'd need time for the defenses to react, even computerized.) - this probably isnt a problem for EA ships or similar ones given the speeds of the Excalibur (a few thousand km/s)

Minbari and other races with gravitic drives (or other reactionless drives) may use their own drive fields to provide navigational defense functions.
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Ender
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Post by Ender »

Connor MacLeod wrote:
[BL]Phalanx wrote: But in no official source is a smaller class of War Cruiser ever mentioned...

Where else have we seen this smaller class of War Cruiser on screen?
In the Beginning - the Grey council ship (both before Duhkat's death and during the Battle of the Line), a few otehr times (I know B5tech.com had a small cruiser that was close to b5 that WAS small.)

Brian's done alot of the scalings on the small War Cruiser. I did scalings that identified the larger ones as well (1000-1200 meter one is the most common, and a rare one about a mile long (seen only once or twice in season 3)

There are official scalings though - one has put the War Cruiser at 600 meters or so. The largest was the Sierra Sharlin at 1200-1300 meters.

You might find this helpful
http://www.wolfsshipyard.mystarship.com ... i_Size.gif
With the exception of that stupid ass command ship they are all from B5wars
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