What is the definition of V2?

V2 is defined as the speed at which an aircraft can safely climb after takeoff with one engine inoperative. This is a critical parameter in aviation, especially for multi-engine aircraft, as it ensures that the aircraft can maintain a positive rate of climb even if one engine fails shortly after takeoff. Achieving V2 provides pilots with the necessary margin to control the aircraft and safely navigate during an engine failure scenario, thus enhancing safety during critical phases of flight.

The other answers relate to different aspects of aviation speeds but do not accurately describe V2. For instance, the minimum safe landing speed pertains to landing operations, while takeoff safety speed with two engines refers to a different speed that assumes both engines are operational, which is not relevant to V2's definition. Additionally, the speed to initiate landings is associated with the landing phase of flight and not with the climb performance after takeoff. Understanding V2 is essential for pilots in decision-making during takeoff, particularly when engine performance is compromised.