At the airspeed represented by point B in steady flight, what is achieved?

The airspeed represented by point B corresponds to the maximum glide range in still air. This is a critical concept in flight training, particularly in understanding how to perform a successful gliding maneuver or controlled descent when engine power is lost.

At this optimal airspeed, the aircraft achieves the best possible distance traveled horizontally compared to the altitude lost while gliding. This means that for every foot of altitude lost, the aircraft will cover more distance across the ground than at any other airspeed during a glide.

Finding this balance is crucial, especially in emergency situations where the pilot needs to maximize the distance they can potentially cover to reach a suitable landing area. The specific airspeed for maximum glide range is often specified in the aircraft's operating handbook and is essential knowledge for pilots.

In contrast, the other options relate to different performance characteristics of the aircraft that do not apply to the airspeed indicated at point B. For instance, maximum speed and control are typically linked to different flight regimes, while minimum fuel usage is generally associated with flying at an optimal cruising speed rather than a glide. Similarly, maximum altitude is contingent on other factors, such as engine power and aircraft capability, rather than being specific to glide performance.