Expansion Ratio

[Skylon]

Looking at the vacuum terrier and poodle engines, they seem to have a very low expansion ratio, and the lower isp engines have a larger expansion Ratio. Excuse me if I am wrong, but isn't that the opposite of how it works? The rhino seems to have it a bit better. Though on the thread: 

The models seem to make more sense. I just want to see 'proper' expansion ratios, or different engine models that prove they are the proper sizes.

 

Edited April 6, 2017 by Skylon

[Gaarst]

Basically, yes you want a big bell when in vacuum and a smaller one in atmosphere. KSP pretty much has it the wrong way round. Engines were designed this way with little regard for real-life performance (KSP engines are pretty much magic anyway).

I fully support the idea of having more realistic engine models, regarding expansion ratios, but mind that changing the size of engines for an update will most likely break many crafts. For this reason there are limits to how big nozzles can be made to fit in the current model. The Poodle uses a twin-nozzle design which allows to solve this problem, and removing powerheads from the models altogether could help gaining some space.

Either way, I don't think a rocket engines revamp is still planned. Squad made it pretty clear they were putting it on hold for an indefinite time. If we're lucky we'll get it for 1.4 but not any earlier.

Edited April 6, 2017 by Gaarst

[Skylon]

Okay, thanks for confirming. And yes, I can imagine why they wouldn't want to implement this too soon

[klgraham1013]

Yeah.  One of a few artistic projects that should have been done before the 1.0 moniker.

[Razorforce7]

@Gaarst I'm not even going to assume they will go for the Revamp, If they were to do that it would be like saying, "Hey folks. We made you your game, but you now all have to start over because we need to remake it"
Still I think we can get away with it by adding it later. V1.4.... maybe. Perhaps in a futuristic KsP 2.0. If they were to do it now people would complain. Usually by doing such things later you can get away by argumenting that the game will get a large overhaul to meet some modern gaming standards and then you can put a 2.0 sticker on it.

@Skylon I to hope this will happen one day though. And thus I hereby support the idea. But I'm quite sure your going to be stuck with the current Revamp mod.