V one, V R, and V two are referred to as which type of airspeeds?

V one, V R, and V two are critical airspeeds used during the takeoff and climb phases of flight, particularly in multi-engine aircraft operations. These airspeeds are defined based on the aircraft's performance characteristics and are essential for safe takeoff and initial climb under various conditions, including engine failure scenarios.

V one is the decision speed at which a pilot must choose to continue the takeoff or abort, while V R is the rotation speed at which the aircraft can begin to lift off, and V two is the safe climb speed to maintain after takeoff, particularly if one engine has failed.

These airspeeds are classified as indicated airspeeds because they are derived from the airspeed indicators that measure how fast the aircraft is traveling through the air. Indicated airspeed is the reading shown on the airspeed indicator in the cockpit, which is based on the dynamic pressure of the air flowing over the aircraft and corrected for instrument and position errors.

The significance of these speeds in flight planning and operation highlights their critical role in ensuring safety and performance during flight operations.