Approach Categories

The factor used to categorize the following aircraft was taken from part 97. This factor is based on 1.3 times the stall speed with aircraft in landing configuration at maximum certificate landing weight.

Category A - Speed less than 91 knots. This category includes civil single-engine aircraft, light twins, and some of the heavier twins.

Category B - Speed 91 knots or greater but less than 121 knots.

Category C - Speed 121 knots or greater but less than 141 knots.

Category D - Speed 141 knots or greater but less than 166 knots.

Category E - Speed 166 knots or greater. This category includes, for the most part, those military, experimental, and some civil aircraft having extremely high speeds and critical performance characteristics.

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