[1.0.4] Liquid oxygen boiloff issue with Real Fuels

[Gaarst]

There is a new Real Fuels release fixing this, so problem solved.

I was making a rocket to launch a small payload to orbit with RSS and Real Fuels, when I noticed an issue with liquid oxygen boiloff:

Liquid oxygen boiloff seems to be affected by the movement of the craft, and only in the active stage.

Here's an Imgur album describing the issue (and before you ask, 1st stage fuel tanks are cryogenic):

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(Note that the launch clamps pumps are off for the test)

As you can see, the liquid oxygen consumption rises when the rocket starts to lift off the pad. This might not seem a lot, but that makes me lose 300m/s of dV with that launcher (and makes it unable to orbit the payload it was designed for).

Also note that even though I have liquid hydrogen in the uninsulated second stage tank, its boiloff rate is nowhere near the LOx's (tops at 0.17 in the last screenshot, quantity is only 3x smaller); and the LOx in the second stage is not boiling off at all.

While the LOx excess consumption rises with the ascent speed of the rocket (total consumption stabilises around 105), it goes down when I shut down the engines, or when the rocket is falling.

The tanks used in the first stage are the stock Rockmax 32 and 64 redesigned using Ven's Revamp. I had the same issue, with the same numbers, using a tank from Procedural Parts (set to cryogenic) instead.

I have yet to try this with another rocket or other engines.

List of (relevant) mods:

Real Fuels 10.7.1

Real Fuels Stockalike configs 2.1.8

Real Heat 1.1

Real Solar System 10.3.1

SpaceY 1.4

Ven's Stock Revamp 1.8 (might be 1.8.1)

Procedural Parts 1.1.7

(I'll add the complete modlist if asked to)

Edited November 11, 2015 by Gaarst