RE: Engine Torque Problem
The info added by this report is the fact that the rear plane's prop also stroke the fuselage of the front plane behind the cockpit...
And that there might have been turbulent air there, from the BearCat that landed previously...
...And that P-51A was not an original WWII Mustang, but an amateur built plane; from the original plans...
So, what had happened? This happened (showing the video)!