Final answer:
Helicopters experience effective translational lift while transitioning to forward flight at approximately 10 to 20 knots.
Step-by-step explanation:
Helicopters experience effective translational lift while transitioning to forward flight at approximately 10 to 20 knots.
Translational lift is the increase in lift that occurs when a helicopter transitions from hover to forward flight. As the helicopter moves forward, the airflow over the rotor blades changes, resulting in increased lift. This allows the helicopter to fly more efficiently and at higher speeds.