Chair flying / Accelerated Stall

Accelerated Stall

Demonstrate that a wing stalls at its critical angle of attack regardless of airspeed: load the wing in a banked turn until it stalls at a higher-than-normal speed, then recover at the first indication.

Chair fly it

Pre-Maneuver Checklist (CRAAC)

Clearing turns — two 90° turns or one 180° turn; look for traffic
Reference point — select a visual reference and set the heading bug
Altitude — high enough to complete the maneuver at or above 1,500 ft AGL
ACS minimums: slow flight and stall recovery complete ≥1,500 ft AGL; ground reference maneuvers enter at 600–1,000 ft AGL.
Airspeed — at or below Va (105 @ 2,325 lb / 90 @ 1,900 lb kt)
Configuration — fuel pump ON, lights ON, mixture RICH, flaps as needed

Setup

Slow to about 80 kt during the clearing turns
Clean configuration flow
Clean configuration flow: electric fuel pump ON · fuel selector proper tank · mixture full rich · flaps 0.

Execution

Establish a coordinated 45° bank turn
Slowly reduce power to idle
Increase back pressure to hold altitude and load the wing until it stalls
The higher load factor in the turn raises the stall speed (Vs × √load factor), so the wing stalls well above the 1-G stall speed — the same critical angle of attack, a higher airspeed.

Recovery

At the first indication (buffet or horn): reduce AOA, level the wings, add max power“Buffet — recover”
Return to the specified altitude, heading, and airspeed

ACS tolerances

Recover at the first indication of the stall
No secondary stall

Common errors

Uncoordinated entry — a wing drops toward a spin
Waiting past the first indication before recovering
Excessive altitude loss in the recovery