Luca0312

Aircraft approach categories depend on the Vref (a speed, which is usually 1.3x the stall speed in landing configuration and at maximum landing weight). (1) Category A: Speed less than 91 knots. (2) Category B: Speed 91 knots or more but less than 121 knots. (3) Category C: Speed 121 knots or more but less than 141 knots. (4) Category D: Speed 141 knots or more but less than 166 knots. (5) Category E: Speed 166 knots or more. L.