What is the typical indicator shown on the Airspeed Indicator during takeoff?

During takeoff, the Airspeed Indicator typically shows the takeoff speed, which is crucial for a successful departure from the runway. This speed is known as V1, Vr, or takeoff decision speed, depending on the specific circumstances and aircraft configuration. Achieving this speed ensures that the aircraft has enough lift to become airborne safely.

Selecting takeoff speed on the airspeed indicator is essential because it informs the pilot that the aircraft is in the proper performance envelope for takeoff. If the aircraft has not reached this speed, there may not be sufficient lift to maintain flight, potentially leading to a stall.

Options like zero knots would indicate that the aircraft is not moving at all, which would not be representative of a takeoff situation. Similarly, stall speed is the minimum speed at which the aircraft can maintain controlled flight and is not relevant for takeoff, as pilots aim to surpass stall speed significantly to ensure stable lift. Lastly, cruise speed pertains to the speed at which the aircraft operates in level flight after takeoff and is not applicable during the takeoff phase.