Before revision: The torque effect experienced in helicopters and single propeller-powered aircraft is a result of Isaac Newton's third law of motion that "for every action there is an equal and opposite reaction" In helicopters, the result of the torque effect is a tendency of the main rotor to want to turn the fuselage in the opposite direction from the rotor.
After revision: The torque effect experienced in helicopters and single propeller-powered aircraft is an example of Isaac Newton's third law of motion that "for every action there is an equal and opposite reaction" In helicopters, the result of the torque effect is a tendency of the main rotor to want to turn the fuselage in the opposite direction from the rotor.