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Reverse impulse

Posted: 2005-01-12 10:15am
by Sarevok
In the Star Destroyer mod available for download for the Bridgecommander computer game the ship has the reverse impulse capability found in the Trek ships that come with the stock game. Reverse impulse is essentialy flying backwards. Is there any canon evidence to suggest Star Destroyers can actualy do that ?

Re: Reverse impulse

Posted: 2005-01-12 10:21am
by Elheru Aran
The Shadow wrote:In the Star Destroyer mod available for download for the Bridgecommander computer game the ship has the reverse impulse capability found in the Trek ships that come with the stock game. Reverse impulse is essentialy flying backwards. Is there any canon evidence to suggest Star Destroyers can actualy do that ?
Well, there are no visible external thrusters pointing forwards, but I see no reason why not-- it'd need something of the sort for docking procedures and the like anyway. At least station-keeping thrusters, which would be a way to fly backwards-- very very slowly, to be sure, but when you consider physics, give it a while and it'll be going fairly fast...

Re: Reverse impulse

Posted: 2005-01-12 11:01am
by Vohu Manah
Elheru Aran wrote:Well, there are no visible external thrusters pointing forwards, but I see no reason why not-- it'd need something of the sort for docking procedures and the like anyway. At least station-keeping thrusters, which would be a way to fly backwards-- very very slowly, to be sure, but when you consider physics, give it a while and it'll be going fairly fast...
Couldn't technological miniaturization as the result of advancement be the likely cause, or am I talking out of my butt?

Re: Reverse impulse

Posted: 2005-01-12 12:27pm
by dragon
Vohu Manah wrote:
Elheru Aran wrote:Well, there are no visible external thrusters pointing forwards, but I see no reason why not-- it'd need something of the sort for docking procedures and the like anyway. At least station-keeping thrusters, which would be a way to fly backwards-- very very slowly, to be sure, but when you consider physics, give it a while and it'll be going fairly fast...
Couldn't technological miniaturization as the result of advancement be the likely cause, or am I talking out of my butt?
I would say talking out :D Actually if they had the miniaturization to that scale they wouldn't need the great big engines on back.

Posted: 2005-01-12 03:16pm
by Illuminatus Primus
Some have suggested that STAR WARS force field control is fine enough to channel the thrust column 180 degrees over the ventral and dorsal faces to provided retrograde thrust. However, in most circumstances STAR WARS vessels probably use their gravitic and repulsor technologies to slow down or deaccelerate as this usually occurs when approaching a celestial body of mass, like a planet.

Re: Reverse impulse

Posted: 2005-01-12 03:24pm
by Crown
The Shadow wrote:In the Star Destroyer mod available for download for the Bridgecommander computer game the ship has the reverse impulse capability found in the Trek ships that come with the stock game. Reverse impulse is essentialy flying backwards. Is there any canon evidence to suggest Star Destroyers can actualy do that ?
Yes. RotJ.

How else do you think they can suddenly come to a full stop without re-orintating in the opposite direction and deccelerating that way? :wink:

Posted: 2005-01-13 04:42am
by Stark
Isn't it moot, because ST and SW ships should both have problems slowing down or going backwards? Did I miss the 'ST ships can go backwards and that makes sense thread'?

Posted: 2005-01-13 08:42am
by Sarevok
Stark wrote:Isn't it moot, because ST and SW ships should both have problems slowing down or going backwards? Did I miss the 'ST ships can go backwards and that makes sense thread'?
Did not the Enterprise slowly back out after ramming the Scimitar in Nemesis ?

I could be wrong though since Star Trek computer games are not canon and make up a lot of stuff.

Posted: 2005-01-13 09:05am
by Lord Revan
The Shadow wrote:
Stark wrote:Isn't it moot, because ST and SW ships should both have problems slowing down or going backwards? Did I miss the 'ST ships can go backwards and that makes sense thread'?
Did not the Enterprise slowly back out after ramming the Scimitar in Nemesis ?

I could be wrong though since Star Trek computer games are not canon and make up a lot of stuff.
it was the Scimitar that went into full reverse (one must just wonder why wasn't used before). As for the OP the ship that Anakin and Padme left Corusant backed out off space dock

Posted: 2005-01-13 09:32am
by Old Plympto
Lord Revan wrote:As for the OP the ship that Anakin and Padme left Corusant backed out off space dock
Nope. It just glided forward and out of the docking terminal.

Re: Reverse impulse

Posted: 2005-01-13 10:11am
by Kreshna Aryaguna Nurzaman
The Shadow wrote:In the Star Destroyer mod available for download for the Bridgecommander computer game the ship has the reverse impulse capability found in the Trek ships that come with the stock game. Reverse impulse is essentialy flying backwards. Is there any canon evidence to suggest Star Destroyers can actualy do that ?
IIRC Star Destroyers use reverse thrusters to decelerate, so I guess it's reasonable enough to extrapolate they can move backwards using the said thusters.

Also, there are canon evidences about various things a StarDestroyer mod can do to a thread. :P

Posted: 2005-01-13 11:12am
by Knife
We have EU evidence that SW ships 'vector thrust' for manuvering, and movie evidence that 'flaps' do exsist on various vessels that could be used to 'vector thrust'.

So if they channel thrust to move port or starboard, its not a huge leap to think they do it to decrease speed or even back up a bit. Though, in case of the SD, we see that one can turn pretty damn quick when the Avenger was chasing the MF, so I would guess that in most cases, its just as easy to 'flip a U-ie' instead of backing up. But I guess it depends on the situation.

Posted: 2005-01-13 03:46pm
by Vain
Star Destroyer's bangin' a U-ie, huh? The idea of the Executor pulling a bootlegger's reverse cracks me up.

Posted: 2005-01-13 03:53pm
by Ninja of the North
Old Plympto wrote:
Lord Revan wrote:As for the OP the ship that Anakin and Padme left Corusant backed out off space dock
Nope. It just glided forward and out of the docking terminal.
The Millenium Falcom backed out of the Death Star Hangar. What this has to do with ISD's, I don't know :)

Re: Reverse impulse

Posted: 2005-01-13 07:20pm
by YT300000
The Shadow wrote:Is there any canon evidence to suggest Star Destroyers can actualy do that ?
Not sure about SD's, but YT-1300's can.
Han, ANH wrote:Full reverse, Chewie, lock in the auxillary power.

Posted: 2005-01-13 07:39pm
by Stark
So far from 'ST can do it, can SW?' we've ended up at 'SW can do it, can ST'. The Nemesis example (even though it's the Skim moving) would be inadmissable anyway, since impulse was broken and they were running on thrusters.

Posted: 2005-01-13 08:05pm
by Lord Poe
Stark wrote:So far from 'ST can do it, can SW?' we've ended up at 'SW can do it, can ST'. The Nemesis example (even though it's the Skim moving) would be inadmissable anyway, since impulse was broken and they were running on thrusters.
The Enterprise A backed off General Chang's BoP in ST6.

Posted: 2005-01-13 08:24pm
by Knife
Lord Poe wrote:
Stark wrote:So far from 'ST can do it, can SW?' we've ended up at 'SW can do it, can ST'. The Nemesis example (even though it's the Skim moving) would be inadmissable anyway, since impulse was broken and they were running on thrusters.
The Enterprise A backed off General Chang's BoP in ST6.
And slowed way down after arriving at Regula station.

Posted: 2005-01-13 08:31pm
by Lord Poe
Ninja of the North wrote:The Millenium Falcom backed out of the Death Star Hangar.
That could just be the repulsorlift engines spinning the ship around.
YT300000 wrote:Not sure about SD's, but YT-1300's can.
Han, ANH wrote:Full reverse, Chewie, lock in the auxillary power.
That's a better indication of retro-thrusters.

Posted: 2005-01-13 08:47pm
by Lord Poe
Knife wrote:
Lord Poe wrote:The Enterprise A backed off General Chang's BoP in ST6.
And slowed way down after arriving at Regula station.
Yes. Also, the original Enterprise backed up while in the giant amoeba.

Posted: 2005-01-14 12:38am
by Winston Blake
The OT:ICS X-Wing entry points to a relatively tiny nondescript cone-like structure as being a retro-thruster. Considering the size of the main engines, it seems SW retro-thrusters are simply very small things, maybe all but invisible on an ISD.

Also, another example of Trek reverse thrust comes from the beginning of STG where Captain Harriman orders the Ent-B into 'Full reverse' to get free of the Nexus.

Re: Reverse impulse

Posted: 2005-01-14 02:38am
by Tychu
Elheru Aran wrote:Well, there are no visible external thrusters pointing forwards, but I see no reason why not-- it'd need something of the sort for docking procedures and the like anyway. At least station-keeping thrusters, which would be a way to fly backwards-- very very slowly, to be sure, but when you consider physics, give it a while and it'll be going fairly fast...
Well in the movies we dont see them going backwards and in the books whenever a Imp or Reb is caught off guard as a captain of a Star Destroyer or Rep class destroyer we always read that they quickly try to turn the ship around so they can escape they never say "reverse drive now" and all that cliche movie stuff

Posted: 2005-01-14 10:09am
by Wild Karrde
From Dark Empire:

Image

Posted: 2005-01-14 05:21pm
by Enola Straight
I believe the canon-source designation are "vectrals".