kerbalCrewMass is added to *every* part when crew are added in the VAB

[NonWonderDog]

KSP has an undocumented parameter in Physics.cfg called kerbalCrewMass. This adds a configurable amount of mass to a crewed part. The mass doesn't show up in the stock Engineer's Report, but it is added in the flight scene.

That's not the bug.

Kerbal Engineer seems to try to account for kerbalCrewMass in the VAB, but it does so incorrectly. When crew is added to a vessel, Kerbal Engineer seems to add kerbalCrewMass to every part on the vessel, instead of just the crewed part. This causes the calculated TWR and delta-V to be significantly incorrect for large crewed vessels.

With kerbalCrewMass set to 0.09375, adding a kerbal to a craft consisting of a single Mk1 pod correctly adds 94 kg to the Kerbal Engineer vessel stats in the VAB. Adding a single kerbal to a craft consisting of a M1 pod and any other part adds 188 kg.

The mass and delta-V are correct in the flight scene.

[Vladimir-csp]

Confirming this, I also use "corporeal crew" )

[jrbudda]

Is this still an issue in 1.4.1? I can't get the kerbalCrewMass value to do anything at all....

[NonWonderDog]

Seems to work exactly as before in my 1.4.1 install. I set kerbalCrewMass=100 in Physics.cfg, made a 3-part rocket, and couldn't lift off. Engineer reported a mass of 300+ tonnes in the VAB, and the correct mass of 100+ tonnes on the pad.

[jrbudda]

ya know I bet I have to change it in ModuleManager.physics and not physics.cfg. That would explain it. In any case KER does not access or attempt to do anything at all with this value as far as I can see. My guess is the mass is added by the game to all parts in the VAB and maybe the vanilla engineer report is subtracting it out.

[jrbudda]

Should be fixed. The two of you who play with this setting owe me like 6 hours of my life back. What a mess. https://github.com/jrbudda/KerbalEngineer/releases

[Vladimir-csp]

Thanks!
I'll test it later today.

[Vladimir-csp]

Overall mass and Dv calculation seem to be fine now, but part middle-click info box still adds crew mass for every part.

[jrbudda]

Yea it's a stock bug I worked around for KER. I can't fix Squad's bug.

[Vladimir-csp]

Middle click info is KER's feature.

[jrbudda]

is it really? lol, goes to show how often I play without it!

[jrbudda]

Ok this should have it all fixed.

KerbalEngineer-1.1.4.1b.zip

[Vladimir-csp]

something broke in this one :(
It reverted to previous behavior
Oh, you fixed the link. Everything seems to be working with this one.