How much altitude is generally traded for an increase of 10 knots of airspeed?

The relationship between altitude and airspeed in aviation is often defined by a general rule that indicates how much altitude can be traded for an increase in airspeed. In this context, for each 10 knots increase in airspeed, a pilot typically trades approximately 100 feet of altitude. This principle is useful for pilots in managing their energy state during flight, especially during maneuvers such as turns or descents where maintaining a balance between speed and altitude is crucial for safe operations. Understanding this tradeoff helps pilots make informed decisions, ensuring they maintain adequate performance margins throughout their flights.