I've also had trouble with the rudder, with the Hind being the only one that went the right way...
(FM=0 because I wanted to start with a 'known' behaviour, I will try '2' later)

Also, AAA sounds don't stop after you destroy them, you can even go back later and they are still making firing noises but on rapid repeat with no pause.

Also on the Ka-52 the HUD speed seems to be 30+ more than the dial speedo?