Pilot Institute

FEBRUARY 20, 2025

The rotational force thats needed to move an object about an axis is called torque. The simplest formula for torque is: Torque = F x L L is the distance between the object and the axis of rotation, also called the moment arm. Adverse yaw is created due to the drag differential between the two sides of the aircraft.

Aileron 90

Aileron Weight-Shift-Control Rudder Longitudinal Axis 90

Northstar VFR

JULY 21, 2024

The pilot controls the throttle to create thrust. These are called left turning tendencies and include P-factor, spiraling slipstream, torque, and gyroscopic precession. When an airplane starts a turn, there is more lift, and therefore, more drag created in the raised wing. This is called adverse yaw.

Rudder 52

Rudder Airplanes Pilot Stability 52

Pilot Institute

OCTOBER 12, 2024

Stalling with a high-power setting takes more effort since there is thrust and a high-energy slipstream from the propeller, which prevents boundary layer separation. Watch out for torque effect (especially if you are in high-powered aircraft) since the increase in power can cause the nose to yaw to the left.

Stability 52

Stability Horizontal Stabilizer Airplanes Lift 52

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.

Airplanes 80

Airplanes Rudder Knot Aileron 80