Tried every airship currently in game as well as messing around with my indev one

Did you try the ailerons?

Yeah, rudder keys will trigger animations for the rudder value (ailerons don't | it's worth noting here that all the airships I've seen have rudder set for animations on helms and control surfaces when I looked at them now) but neither set seem to do anything with the physics at all

It is to note that once I remove the isBlimp thingy it works perfectly fine, but ofc I don't have the gearbox reversers or pbrake anchor which is kinda a must

Yeah, I need to fix that. The idea was that I'd shunt the aileron keys to the rudder controls to allow blimps to be "driven" with the WASD keys like planes, since they use rudder to turn rather than aileron. Basically a @boot2big special. I probably borked it up when I split the input and output variables and never checked since I had no blimps to check with. UNU blimps were super borked at that time.

Oooough, I ain't touching that blimp stuff with a stick. I just figured I was doing my blimp stuff wrong since my "blimp" vehicle doesn't have any rudders anyways, so I had just resorted to moving the motors.

@boot2big No no, I mean you try and steer planes like blimps!

Fixed in 22.4.0.