Thanks Randy...... well, Kind of
I thought "great, I can lern something new"...... only to realize "I know nothing about aviation"
I’m a pilot, so a bit of an unfair advantage.
In a single engine plane with a standard propeller, you need to step on the right rudder pedal in order to keep the plane flying straight. Of course that rudder deflection causes aerodynamic drag - which will slow the plane down. I’m pretty sure that the two props on this seaplane being counter-rotating to each other will cancel most of the P-Torque - thereby removing the need to step on the rudder (so much)…
I do think that the rotation of the engine(s) alone will cause a torque reaction that will still need some control inputs to cancel.