I had my first flights with Dash 8 Q400 and one thing which annoy me was the strong rotation around the roll axis and the turn to left during takeoff and climbing. I know the effects propeller torque and p-factor from single engine props planes, but I didn't expect it from twin engine planes.
I tested all available twin engine planes of FS2. All jets fly straight ahead, but all props turn either to left or to right. I looked into the internet and have learned, propeller torque and p-factor effect exist too for twin engine planes, if both engines rotate in the same direction. I expected that both engines rotate in the opposite direction, but this isn't true of all planes, the Dash 8 Q400 too. Both engines of the Dash 8 Q400 rotate clockwise (with view to front).
This means the pilot has to stop the turn by applying aileron and rudder to right, manual or to trim. So it isn't a mistake in FS2. I ask myself are these effects really so strong in the real?
May be I have found a mistake. If both engines rotate to right (clockwise) the plane turn to left. The engines of Baron 58 rotate to right (see youtube videos), so the Baron has to turn left on takeoff, but it turn to right!?
The left engine of P-38 rotate to left (counterclockwise) and the right engine to right. Here I expect no propeller torque and p-factor effects, but P-38 turn to right. What the reason?