What does VY provide for a pilot?

VY, or "best rate of climb speed," is defined as the speed at which an aircraft can achieve the greatest altitude in the shortest amount of time. It is a crucial parameter for pilots, particularly during the climb phase after takeoff. Maintaining VY enables the aircraft to gain altitude most efficiently, which is important for terrain clearance, obstacle avoidance, and achieving necessary flight levels in a timely manner. This speed optimally balances climb performance with the aircraft’s power available, ensuring that the rate of ascent is maximized.

While VY does not specifically focus on distance or fuel efficiency, its primary purpose is to offer the highest altitude gain in the least time, making it essential for scenarios where quick altitude increases are required, such as in emergencies or when transitioning through obstacles.