Some time ago I noticed, that after shooting an enemy plane down, its gear went down.
It’s not relevant for the gameplay, but surely this is not planned.
I had already seen this before on enemy planes that I shot down.
My own gear went down as well yesterday after I was shot myself, I have just checked the replay.
I had it before in the USA AP-1.
Head on crash with enemy plane, we both went down, I jumped out my plane (apparently not completely destroyed or dead yet) and as I fell to the earth, I watched my AP-1 with the wheels down, which were up when I was still in it.
The problem is that it always happens, but it would be a nice flavour if due to damage airplane gear would have a chance to go down due to loss of hydraulics (I think some planes had that as a feature in case they failed, so the pilot could land semi-normally, in others that was oversight/unplanned).
Pretty sure it only happens when people bail out (perhaps only when the plane is still controllable)
I think it used to be a signal of the pilot surrendering (kind of like putting your hands up)