PatrickRomero wrote:it pulls to the right partly due to the torque of the motor and propeller. not much can be done to fix it aside from increasing the angle of attack on the right wing and decreasing the angle of attack on the left wing. That is all that I know on the problem.
I've just joined this forum, so my reply is a little late.
If I remember correctly, this aircraft had such a large "P" factor (torque from the propeller) that the designers made the rudder an airfoil shape instead of it being symmetrical. That removed a lot of the cockpit load during combat, because the pilot didn't have to be constantly adjusting his rudder trim as he varied his throttle position (engine torque). It wasn't a perfect solution to the massive torque, but it helped.
The real problem that these large piston engined aircraft had was the lack of rudder authority on takeoff. If the pilot didn't "roll into" the throttle, and allow the airspeed to build up to give the rudder enough "bite" to control the propeller torque, he was in serious trouble! You can firewall the throttle on a Piper Cub and it will happily accelerate in a straight line down the runway without trying to dig one wingtip into the concrete.