Pegasus Aviation Service, LLC

Power Off Stalls BACK to Index

DescriptionThe airplane is maneuvered to a critically slow airspeed in straight or turning flight in a power-off (landing) configuration. The angle of attack is then increased until a stall occurs. ObjectiveTo develop the student’s ability to recognize the aerodynamic indications leading to a stall in power- off situations and to make prompt and effective recoveries with a minimum loss of altitude. Procedure• Complete pre-maneuver checklist. Clear the area. Make radio calls as appropriate. Maintain 2300 RPM and approximately 90 KIAS. Select a prominent outside visual reference in reference to nose of aircraft.• Establish approach speed. Apply carburetor heat, reduce power to 1500 RPM and gradually apply back pressure on yoke to maintain altitude and reduce airspeed. Upon reaching (85 KIAS) lower full flaps to 30° or 40° in increments and slow to a simulated approach speed of 60 KIAS. Maintain 60 KIAS by pitching down with the yoke.• Induce stall. Momentarily maintain a stabilized and coordinated approach. Apply back pressure on yoke to simulate round out. Pull power to idle, pull back on the yoke to induce a flare and maintain coordination by increasing right rudder pressure. Maintain a nose up attitude until stall occurs.• Recovery. Simultaneously relax back pressure, add full power, turn carb heat off, and level the wings as necessary. Retract flaps to 20° while maintaining coordination.• Stop the descent. Gently increase pitch attitude to accelerate and climb out at or as specified.• Establish a climb. Once a positive rate of climb is achieved, retract remaining flaps in increments.• Return to cruise flight. Once desired altitude is reached, lower nose and allow airspeed to increase. Reduce power to 2300 RPM and trim to relieve control pressure. ACS Standards• Select an entry altitude that will allow the Task to be completed no lower than 1,500 feet AGL• 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 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°, ±5°, (±10° for private) if in turning flight, until an impending or full stall occurs, as specified by the evaluator.• Acknowledge the cues at the first indication of a stall (e.g., airplane buffet, stall horn, etc.).• Recover at the first indication of stall (commercial) or after full stall has occurred (private), as specified• Configure the airplane as recommended by the manufacturer and accelerate to or .• Return to the altitude, heading, and airspeed specified by the evaluator.