Which Aircraft Performance Category C speed range is listed?

• A. 90-100 kt
• B. 121-140 kt
• C. 141-165 kt
• D. 166-210 kt

Answer: (B)

Approach-speed categories group aircraft by their indicated airspeed during the approach to standardize minima and obstacle clearance. Category C specifically covers aircraft whose approach speed falls between 121 and 140 knots. This mid-range band sits between the slower categories and the faster ones, providing minima appropriate for that speed group. The other options fall outside this band or align with different categories (for example, speeds below 121 belong to slower categories, while 141-165 and 166-210 correspond to faster categories). So the range 121-140 knots is the correct Category C designation.