CAAP Private Pilot License (PPL) – EQC For C172 Practice Exam

What is the target airspeed for Best Rate of Climb Vy Normal at 10,000 ft?

70 KIAS 74 KIAS 72 KIAS 68 KIAS

Correct Answer:

72 KIAS

Explanation:

Best Rate of Climb speed is the airspeed that gives the greatest altitude gain per minute in the airplane’s current configuration. At 10,000 ft the air is thinner and the engine produces less usable power, so the speed that optimizes climb rate shifts a bit from sea level. For a typical C172 in normal configuration, about 72 KIAS provides the best balance of lift, drag, and available power to maximize climb rate at that altitude. Going faster (around sea-level Vy) would waste power to overcome additional drag, while going slower could reduce climb rate and may approach stall margins in thinner air. The 72 KIAS value reflects the best compromise for maximizing vertical speed up at 10,000 ft.

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