Takeoff safety speed (V2) is defined as the airspeed after lift-off at which the required one-engine-inoperative climb performance can be achieved.

• A. A referenced airspeed obtained after lift-off at which the required one-engine-inoperative climb performance can be achieved.
• B. The minimum steady flight speed in level flight.
• C. The maximum structural cruising speed.
• D. The speed used for approach and landing.

Answer: (A)

V2 is the referenced airspeed after liftoff at which the airplane can meet the required climb performance with one engine inoperative. This speed is chosen to ensure the aircraft has enough thrust-to-weight margin, control authority, and climb capability to continue safely from liftoff if an engine fails, providing obstacle clearance and a positive rate of climb.

This is not the speed for level flight during all-engine operation (the minimum steady flight speed in level flight is related to stall characteristics, not takeoff safety with an engine failure). It’s not the maximum structural cruising speed (that relates to structural limits during cruise, not takeoff performance). And it isn’t the speed used for approach and landing (that’s a separate approach/landing speed designed for stability and flare).