Which signal indicates potential stall risk during flight?

Which signal indicates potential stall risk during flight?

• A. The airspeed increasing while pitch remains neutral
• B. The engine warning light illuminates
• C. The airframe showing signs of stall risk
• D. The altitude increasing rapidly

Answer: (C)

Stall risk is signaled by the airframe showing signs of stall risk—visible cues like buffet, unusual vibrations, or handling changes (for example, the wing beginning to stall and the flight controls feeling a bit strange or loose). These cues indicate the wing is near or entering a stall due to an increasing angle of attack. Seeing airspeed rise while the pitch stays neutral doesn’t indicate stall risk; that scenario means you’re at higher airspeed, which actually reduces the chance of stalling. An engine warning light isn’t relevant in a glider, since there’s no engine to monitor. Rapid altitude gain isn’t a stall indicator either. So the best cue to watch for is the airframe showing signs of stall risk.

Stall risk is signaled by the airframe showing signs of stall risk—visible cues like buffet, unusual vibrations, or handling changes (for example, the wing beginning to stall and the flight controls feeling a bit strange or loose). These cues indicate the wing is near or entering a stall due to an increasing angle of attack.

Seeing airspeed rise while the pitch stays neutral doesn’t indicate stall risk; that scenario means you’re at higher airspeed, which actually reduces the chance of stalling. An engine warning light isn’t relevant in a glider, since there’s no engine to monitor. Rapid altitude gain isn’t a stall indicator either. So the best cue to watch for is the airframe showing signs of stall risk.