Turning the rudder left puts the nose left, and diverges from the velocity vector the same amount whether right side up or inverted. The issue with inversion is you drift in the opposite direction, despite the heading and velocity vector saying otherwise. It's a very slight and difficult to notice issue (and frankly doesn't really affect all that much), but it does exist.NightRaven wrote:Does it? I find it works alright. It's just the logic that is difficult to wrap your head around, but it is correct. If you rudder upside down to the right, you are actually turning to the left, hence the heading decreases in value. It works fine in YS - I just tested.
You can test it by inverting straight and level, noting your heading, kicking the rudder one direction, and watch your heading return to its original value, despite the rudder being hard over in the other direction.