Airfoil Payload Torque 
Pilot Institute
APRIL 12, 2025
Developments in aircraft design and engine technology have allowed us to fly farther, faster, and carry more payload. They are designed with a special shape called an airfoil, which encourages passing air to turn and deflect downward. If we understand it well enough, we can harness this phenomenon to help us even defy gravity.
Plane and Pilot
OCTOBER 3, 2024
Another advantage of the counter-rotating props is the elimination of torque roll. This is the tendency to dig in the left tip float during takeoff while countering engine torque. The airfoil is a Harry Riblett shape, giving modernized flow separation on the leading edge for a soft stall yet with good lift and drag performance.
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