Commercial Ground Basic Aerodynamics Practice Test 2025 – Complete Exam Prep

In a power-on 60° bank, the aircraft experiences increased stall speed due to the higher load factor created by the bank angle. In this scenario, banking increases the angle of attack required to maintain level flight, which directly raises the stall speed.

When the gear and flaps are up, the aircraft's configuration allows for a clean aerodynamic profile, generally resulting in a higher stall speed compared to a configuration with gear and flaps down. When the gear and flaps are extended, they increase the drag and potentially lower the stall speed due to the increased lift capabilities at lower airspeeds.

Thus, in this case, the increase in stall speed in a power-on 60° bank with the gear and flaps up can be calculated, and the increase can be around 10 knots compared to if the gear and flaps were down. This typically reflects the additional lift required to counteract the increased load factor during the steep bank turn while in a clean configuration without the added benefits of lift from deployed flaps and the drag from extended gear.