Lesson Plan

Power Off Stalls

Objectives

  • Recognize factors and situations that can lead to a power-off stall and actions that can be taken to prevent it
  • Develop the ability to recover from a power-off stall

Elements

Examples

Common Errors

  • Failure to adequately clear the area
  • Over-reliance on the airspeed indicator and slip-skid indicator while excluding other cues
  • Inadvertent accelerated stall by pulling too fast on the controls during a power-off or power on stall entry
  • Inability to recognize an impending stall condition
  • Failure to take timely action to prevent a full stall during the conduct of impending stalls
  • Failure to maintain a constant bank angle during turning stalls
  • Failure to maintain proper coordination with the rudder throughout the stall and recovery
  • Recovering before reaching the critical AOA when practicing the full stall maneuver
  • Not disconnecting the wing leveler or autopilot, if equipped, prior to reducing AOA
  • Recovery is attempted without recognizing the importance of pitch control and AOA
  • Not maintaining a nose down control input until the stall warning is eliminated
  • Pilot attempts to level the wings before reducing AOA
  • Pilot attempts to recover with power before reducing AOA
  • Failure to roll wings level after AOA reduction and stall warning is eliminated
  • Inadvertent secondary stall during recovery
  • Excessive forward-elevator pressure during recovery resulting in low or negative G load
  • Excessive airspeed buildup during recovery
  • Losing situational awareness and failing to return to desired flightpath or follow ATC instructions after recovery.

Completion Standards

  • Clear the area.
  • Select an entry altitude that will allow the Task to be completed no lower than 1,500 feet AGL (ASEL, ASES) or 3,000 feet AGL (AMEL, AMES).
  • Configure the airplane in the approach or landing configuration, as specified by the evaluator, and maintain coordinated flight throughout the maneuver.
  • Establish a stabilized descent.
  • Transition smoothly from the approach or landing attitude to a pitch attitude that will induce a stall.
  • Maintain a specified heading, ±10 if in straight flight; maintain a specified angle of bank not to exceed 20°, ±10°, if in turning flight, while inducing the stall.
  • Acknowledge cues of the impending stall and then recover promptly after a full stall has occurred.
  • Execute a stall recovery in accordance with procedures set forth in the POH/AFM.
  • Retract the flaps to the recommended setting; retract the landing gear, if retractable, after a positive rate of climb is established.
  • Accelerate to VX or VY speed before the final flap retraction; return to the altitude, heading, and airspeed specified by the evaluator.

References