Mxsmanic wrote:
I do wish that things were different. I consider the effects of
P-factor and torque to be design defects.

You can't design out P-factor or torque, but I don't think they're that
critical anyway in flight for most low-powered GA craft. The propeller
slipstream has more effect on both the rudder and elevator, and that
can be reduced with canted tailfin, and more or less fixed with dual
booms and T-tail.

There are centerline push-pull twins, like the Cessna Skymaster or the
current Adam A500. They eliminate the engine-out yaw problem. As
long as both are running, torque etc should cancel out since the
engines essentially counter-rotate because of their facing fore and
aft.

Kev