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Re: Starship Construction Techniques In The Honorverse ... | |
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by noblehunter » Wed Aug 05, 2015 9:51 am | |
noblehunter
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I also forgot to account for the fact that almost everything in a solar system is moving. If a ship stops accelerating (or fails to decel if going for a zero-zero rendezvous) it'll pass ahead or behind its target destination. Unless I'm totally mis-understanding the orbital mechanics.
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Re: Starship Construction Techniques In The Honorverse ... | |
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by niethil » Wed Aug 05, 2015 10:36 am | |
niethil
Posts: 151
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As the Shaddocks famously put it when they decided to launch there rocket by letting it fall from the hedge of their planet (or whatever counts as an hedge on a planet that is constantly being deformed by Shaddocks with feet above going to bed - for those who don't know Shaddocks with feet above are used to support the Shaddock planet from underneath so that it doesn't fall) instead of making it fly (they didn't have time to properly fail the 999,999 first launch trials to be sure that the 1,000,000th would succeed before the Disease got them) :
Literally : Getting where one wanted to go was not guaranteed, in fact it was almost guaranteed that one would not get there. There was even a high probability to end up specifically where one didn't want to go. Just because the ship won't get to its destination doesn't mean that it couldn't get somewhere inconvenient ... -------------
'Oh, oh' he said in English. Evidently, he had completely mastered that language. |
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Re: Starship Construction Techniques In The Honorverse ... | |
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by FLHerne » Wed Aug 05, 2015 10:55 am | |
FLHerne
Posts: 37
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It would seem they actually can (or at least deliberate disabling of the compensator, which is pretty much equivalent):
The Zahn short stories are great (the best IMO after Eric Flint's), but they certainly open a few cans of worms assuming they're canonical... |
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Re: Starship Construction Techniques In The Honorverse ... | |
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by Theemile » Wed Aug 05, 2015 12:24 pm | |
Theemile
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It's not the acceleration that is an issue - it is the CHANGE in acceleration over time that is the issue. 0-650 Gs in a millisecond, does much more damage than increasing from an acceleration of 0-2000gs in 1 second. ******
RFC said "refitting a Beowulfan SD to Manticoran standards would be just as difficult as refitting a standard SLN SD to those standards. In other words, it would be cheaper and faster to build new ships." |
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Re: Compensator failure... | |
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by George J. Smith » Wed Aug 05, 2015 1:32 pm | |
George J. Smith
Posts: 873
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The possibility of boarding a ship that has gone Dutchman is very poor until some way of slowing it down can be achieved, even with the wedge shutting down almost immediately after compensator failure the ship still has momentum which has to be matched by any the chasing ship before boarding can be considered.
What would the effects of a wedge and compensator from the chasing ship have on the structure of the Dutchman? What would the effect be on the personnel moving across from the chasing ship to the Dutchman? What is the extent of the compensator on the boarding shuttles and pinnaces that would be used to approach the Dutchman? Everything has to be matched to eliminate what I would refer to as the shearing affect of going from a compensator environment to a non-compensator environment, so wouldn't the chasing ship have to slow the Dutchman down to a speed where the small craft used would not need their own compensators? .
T&R GJS A man should live forever, or die in the attempt Spider Robinson Callahan's Crosstime Saloon (1977) A voice is heard in Ramah |
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Re: Compensator failure... | |
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by munroburton » Wed Aug 05, 2015 2:48 pm | |
munroburton
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I don't think momentum is as much as problem as you think it is. Once a ship's wedge is down, its acceleration becomes nil - it's effectively in free-fall along its vector. Even a humble pinnace can then match course and speed and dock. The only issue then is also matching to any rotations of the ship - simultaneously rolling and pitching could make it very difficult or impossible to board. Compensators are only required during acceleration. I'm not sure, but I think they are also tied into the operation of a wedge - it is impossible to have an active compensator field without an impeller wedge. Only when a starship's wedge is locked online and its compensators have failed is it impossible to board the runaway vessel - a previous poster already suggested they'd have to shoot out enough impeller nodes to kill the wedge in such a situation. Compensator shear effects haven't been described to my recollection and I believe small crafts have been launched and recovered by vessels moving under power, so even if it exists, is a trivial issue. |
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Re: Compensator failure... | |
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by Kytheros » Wed Aug 05, 2015 4:17 pm | |
Kytheros
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You need a functioning compensator to survive going through a wormhole. Compensators are definitely linked to the impeller rings and more specifically both alpha and beta drive nodes. If compensators weren't directly linked to the nodes in some fashion, loosing a node could be compensated for by the overpowering (and reducing longevity) of other nodes in the ring, rather than reducing acceleration. |
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Re: Compensator failure... | |
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by Jonathan_S » Wed Aug 05, 2015 5:32 pm | |
Jonathan_S
Posts: 8796
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You also use a compensator while moving in a grav wave under 'sails. And in fact the grav 'sump' of a wave is so vastly greater than the artificial one of a wedge that you can accelerate at roughly ten times the rate that the same ship could with it's wedge. But the compensator is only indirectly linked to the nodes. It does need the gravity "sump" they create to dump the inertia. But if you just lose a single node a warship usually can up the power on the others to maintain accel. You usually have to lose a few nodes before your acceleration starts falling off. (Of course a single hit to the impellers has a decent chance of knocking out multiple nodes - so you might lose accel after a single hit) |
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Re: Starship Construction Techniques In The Honorverse ... | |
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by Vince » Wed Aug 05, 2015 5:33 pm | |
Vince
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Regarding the portion of your post that I bolded: A freighter is apparently built strong enough to survive very high levels of acceleration without the inertial compensator online: Italics are the author's, boldface is my emphasis. The Dorado, a merchantman without a military inertial compensator, was strong enough to survive about 10 or more times its normal maximum acceleration rate without its inertial compensator online. And it was able to maneuver at that acceleration. -------------------------------------------------------------
History does not repeat itself so much as it echoes. |
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Re: Starship Construction Techniques In The Honorverse ... | |
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by HB of CJ » Wed Aug 05, 2015 6:40 pm | |
HB of CJ
Posts: 707
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Thank you Vince. Frankly I forgot about that passage. I do need to re read all the HH books again. Also I was thinking of normal wear and tear being tractored and pressored about local space loading and unloading. Also economical low gee runs planet to planet. How much non compensated stress could the hull fabric withstand. Now we know. Thank you again. Tough ships!
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