PerformanceClimb Performance
Best Rate of Climb
Best rate of climb is the specific airspeed (VY) at which an aircraft gains the greatest amount of altitude in a given amount of time. It is determined by the point on the power curve where the excess power available over power required is at a maximum.
Key Points
- •Provides the maximum altitude gain per unit of time.
- •Typically flown once clear of immediate obstacles to reach cruising altitude efficiently.
- •V<sub>Y</sub> decreases with an increase in altitude until it meets the best angle of climb speed at the absolute ceiling.
Exam Relevance
Pilots must know when to apply the best rate of climb versus the best angle of climb to safely operate the aircraft, particularly in short-field or obstacle-clearance scenarios.
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