Why does my aircraft keep stalling, and how can I prevent it?

An aircraft keeps stalling because its wing is repeatedly exceeding the critical angle of attack, usually after airspeed decays, the pilot pulls too hard, or a turn raises the load factor. Prevent it by controlling pitch and power, staying coordinated, respecting stall margins, and reducing angle of attack immediately at the warning.

In aviation and real-world flying, an aerodynamic stall means the wing can no longer produce the required lift because airflow has separated significantly. It is not necessarily an engine failure, and the nose need not be above the horizon. Aircraft attitude and angle of attack are different concepts; our explanation of pitch, roll and yaw attitude clarifies that distinction.

What causes an aircraft to stall repeatedly?

Repeated stalls usually come from an underlying speed, configuration or control problem rather than an unusually stall-prone aircraft.

• Excessive pitch in a climb: the pilot holds the nose too high for the available power, so airspeed steadily decays.
• Pulling through a turn: extra back-pressure increases load factor and the angle of attack. A steep turn can therefore produce an accelerated stall well above the normal wings-level stall speed.
• An unstable approach: the aircraft becomes slow, develops a high sink rate and is held off the ground with increasing back-pressure instead of going around.
• Poor coordination: excessive rudder or adverse yaw can make one wing stall first, producing a sudden wing drop and possible spin entry.
• Incorrect loading or configuration: excess weight raises stall speed, an out-of-limit centre of gravity affects stability and recovery, and incorrect flap or trim settings can encourage over-pitching.
• Wing contamination: frost, snow or ice changes the aerofoil shape and may cause an earlier, sharper stall with less familiar warning.

A mistake we see constantly is trying to stop a descent by pulling harder while already slow. The elevator can increase pitch and angle of attack, but it cannot create the missing energy; power, reduced drag or a lower nose attitude is also required.

Why can an aircraft stall above its published stall speed?

An aircraft can stall above the published figure whenever loading, bank, manoeuvring or contamination changes the conditions under which that figure was established.

Published stall speeds normally apply to a specified weight, configuration and one-g flight condition. In a coordinated level turn at 60° of bank, for example, the load factor is 2g and the theoretical stall speed is about 41% higher than its one-g value. Gusts, abrupt control inputs and pulling out of a descent can create the same accelerated-stall problem.

The critical angle of attack remains the basic trigger, but the indicated speed at which it is reached changes. Use the approved flight manual or pilot’s operating handbook figures for the aircraft’s actual configuration rather than treating one marked airspeed as a universal boundary.

How can I prevent another stall?

Stall prevention comes from preserving an appropriate angle-of-attack and airspeed margin while avoiding abrupt or uncoordinated control inputs.

1. Use the correct reference speeds. Fly the approved speeds for weight, flap setting and phase of flight. Check indicated airspeed, not groundspeed.
2. Balance attitude and power. If speed is decaying, lower the pitch attitude and add power as required. Trim only after establishing the desired attitude and speed; do not use trim to force the aircraft into position.
3. Limit loading in turns. Avoid steepening the bank and pulling harder to correct an overshoot, particularly during the base-to-final turn. Go around instead of trying to rescue a poor approach.
4. Keep the aircraft coordinated. Use rudder and aileron together, and watch the slip-skid indication. Coordination does not prevent every stall, but it greatly reduces the chance of a stall becoming a spin.
5. Act on the first warning. Buffet, sluggish controls, a stall horn or an angle-of-attack warning means the margin is disappearing. Do not keep pulling to hold altitude.
6. Use a stabilised approach. Correct speed, configuration, descent path and power should be established early. Our Cessna 172 speed-management and landing walkthrough shows how those elements fit together in a common training aircraft.

What should I do when the stall warning activates?

Reduce the angle of attack immediately, then recover using the procedure approved for that aircraft.

1. Release excessive back-pressure. Lower the nose only as much as needed to unstall the wing; this need not be a dramatic push.
2. Stop yaw and regain coordinated control. Avoid aggressive aileron input against a dropping wing while it remains stalled.
3. Apply power as specified. Use the approved power setting while controlling the associated pitch and yaw changes.
4. Manage configuration carefully. Follow the aircraft procedure for flaps, landing gear and speed brakes. Retracting all flap suddenly can cause another loss of lift.
5. Return to a safe flight path. Accelerate before pulling into a climb, or the aircraft may enter a secondary stall.

At low altitude, prevention and an early go-around provide far more margin than recovery after a developed stall. Stall practice belongs at a safe training altitude, in an approved aircraft and with a qualified instructor; these structured Cessna 172 slow-flight and stall exercises explain the training sequence without replacing instruction or the aircraft handbook.

Can an uncoordinated stall become a spin?

Yes—if the aircraft stalls while yawing, one wing can remain more deeply stalled and autorotation may begin.

Do not assume a generic spin-recovery mnemonic applies to every aircraft. Follow the type-specific procedure, and never practise spins unless the aircraft is approved, correctly loaded and operated with suitable instruction and altitude. Some aircraft prohibit intentional spins altogether.

Why does this keep happening in a flight simulator?

In a flight simulator, repeated stalls often come from controller calibration, excessive aft trim or misunderstood airspeed rather than the simulated aerodynamics alone.

• Check that the pitch axis centres properly and that no second controller has a duplicate pitch binding.
• Remove excessive aft trim and confirm that an autopilot or assistance feature is not fighting your inputs.
• Verify that you are reading indicated airspeed rather than groundspeed, and check flap, gear, weight and centre-of-gravity settings.
• Look for icing or severe weather settings that may be degrading the wing.
• Compare the behaviour with a standard aircraft in clean weather. If only one add-on stalls abnormally, its flight model or loading configuration may be the cause.

Our simulator control-calibration and trim guidance covers the setup errors that commonly produce constant pitch changes and over-correction.

When might repeated stall warnings indicate an aircraft fault?

Stall warnings at an apparently normal attitude and airspeed can indicate contamination, incorrect loading, damaged or mis-rigged controls, or an airspeed or warning-system fault.

Do not silence or disregard the warning simply because the indicated speed looks safe; a pitot-static problem can make that indication unreliable, while ice can make the usual stall cues inaccurate. In an actual aircraft, recurring unexplained warnings or abnormal handling require an instructor or maintenance investigation and the aircraft’s approved abnormal procedure—not further low-altitude experimentation.