Which statement is correct regarding stall speeds in a power-on stall with a 60-degree bank?

Which statement is correct regarding stall speeds in a power-on stall with a 60-degree bank?

• A. The airplane will stall 10 knots higher in power-on, 60° bank, with gear and flaps up, than with gear and flaps down.
• B. The airplane will stall 10 knots lower in power-on, 60° bank, with gear and flaps up, than with gear and flaps down.
• C. The airplane’s stall speed is the same regardless of gear and flaps configuration.
• D. The stall speed during a power-off stall is higher than during a power-on stall.

Answer: (A)

Banking the airplane increases the load factor, so more lift is required to hold the same weight. At 60 degrees, the load factor is about 2.0, which raises the stall speed compared with level flight because you must reach a higher dynamic pressure (or a higher angle of attack) to stall. Flap and gear settings change how much lift the wing can produce. Extending flaps increases the maximum lift coefficient, allowing you to stall at a lower airspeed; retracting flaps (flaps up) reduces that lift capability and raises the stall speed. In a power-on stall with a 60° bank, the clean configuration (gear and flaps up) therefore stalls at a higher speed than the dirty configuration (gear and flaps down). The typical difference given for this setup is about 10 knots, making the statement the best description of the situation. Other options conflict with how load factor in a bank and flap-induced lift changes affect stall speed, so they don’t match the flight physics in this scenario.

Banking the airplane increases the load factor, so more lift is required to hold the same weight. At 60 degrees, the load factor is about 2.0, which raises the stall speed compared with level flight because you must reach a higher dynamic pressure (or a higher angle of attack) to stall.

Flap and gear settings change how much lift the wing can produce. Extending flaps increases the maximum lift coefficient, allowing you to stall at a lower airspeed; retracting flaps (flaps up) reduces that lift capability and raises the stall speed. In a power-on stall with a 60° bank, the clean configuration (gear and flaps up) therefore stalls at a higher speed than the dirty configuration (gear and flaps down). The typical difference given for this setup is about 10 knots, making the statement the best description of the situation.

Other options conflict with how load factor in a bank and flap-induced lift changes affect stall speed, so they don’t match the flight physics in this scenario.