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Power-Off Stalls

Introduction:

  • Stalls do NOT occur without warning
    • While flying along in cruise flight, a stall will not rip the airplane out of the sky and throw it uncontrollably to the ground to a big smoking crater
  • Power-off stalls simulate a stall during the normal approach to landing
    • Should be set up in the landing configuration
  • Recoveries therefore train a pilot to make prompt, positive, and effective recoveries with a minimum loss of altitude
  • This stall may occur while descending in an actual or simulated emergency or in any power-off situation when airspeed is not controlled

Stall Avoidance

  • Avoid flying at minimum airspeeds
  • Remain in the normal flight envelope
  • Avoid abrupt maneuvers

Power-Off Stall Procedure:

WARNING:
All procedures here are GENERALIZED for learning.
Fly the maneuver in accordance with the Pilot Operating Handbook (POH)
and/or current Standard Operating Procedures (SOPs)


  1. Select an altitude where recovery will occur no lower than 1500' AGL
  2. Perform clearing turns
  3. Reduce power adjusting pitch to maintain altitude
    • Trim as necessary
  4. Below VLO, extend the landing gear, as required
    • Callout: "Gear Down"
    • Verify gear DOWN and callout "3 Green, No Red
  5. Below VFE, extend the flaps
  6. Advance the propeller control to full forward (high rpm) as required
  7. Maintain altitude until reaching a normal approach speed and then maintain that speed in a stabilized descent
  8. Descending no lower than 200', simultaneously reduce power to idle and pitch up to Vy attitude (4-5 degrees, cowling on the horizon)
    • This pitch attitude will be a normal landing attitude
    • Above 5 knots, above stall speed the horn will sound
    • Stall may be performed level or with up to 20° bank angles
  9. At the stall, call out "stalling"
  10. Reduce the AoA to regain control
  11. Add full power
  12. Pitch for Vy
    • Glare shield level with the horizon
  13. Maintain coordination using rudder to prevent spins
  14. With a positive rate of climb established:
    • Begin to raise the flaps in 10° increments
    • Below VLO, and with a positive rate of climb established, call out "positive climb, gear up," and retract the landing gear
  15. Complete cruise checklist, returning to the altitude, heading, and airspeed required
Airplane Flying Handbook, Figure 4-5. Power-Off Stall
Airplane Flying Handbook, Power-Off Stall
Airplane Flying Handbook, Figure 4-5. Power-Off Stall
Airplane Flying Handbook, Power-Off Stall

Power-Off Stall Common Errors:

  • Failure to adequately clear the area
  • Failure to establish the specified landing gear and flap configuration prior to entry
  • Improper pitch, heading, and bank control during straight ahead stalls
  • Use outside and instrument references
  • Right rudder in nose-high power-on condition; release at break
  • Improper pitch and bank control during turning stalls
  • Rough or uncoordinated control technique
  • Failure to recognize the first indications of a stall
  • Failure to achieve a stall
  • Improper torque correction
  • Poor stall recognition and delayed recovery
  • Excessive altitude loss or excessive airspeed during recovery
  • Secondary stall during recovery

Power-Off Stall Airman Certification Standards:

Conclusion:

  • It is important to note that individual aircraft may have stall characteristics unique to them due to bends/twists which develop in the airframe over time depending on their use
  • Consider practicing maneuvers on a flight simulator to introduce yourself to maneuvers or knock off rust

References: