Learn how to recognise a departure stall, reduce angle of attack, control a wing drop and avoid recovery mistakes that can lead to a spin.
In real-world aviation, recognise a departure stall by decreasing airspeed, rising angle of attack, mushy controls, buffet, a stall warning, poor climb performance and possibly abrupt yaw or wing drop under power. Recover by reducing angle of attack immediately, controlling yaw, levelling the wings, setting appropriate power, then accelerating without causing a secondary stall.
What makes a departure stall different?
A departure stall is usually a power-on stall encountered during rotation, initial climb or a go-around. It is especially dangerous because the aeroplane is close to the ground, configured for take-off and exposed to strong propeller or thrust-related yaw.
The wing still stalls for the normal reason: it exceeds its critical angle of attack. Premature rotation, excessive back pressure, incorrect trim, a climbing turn, a skid, windshear, airframe contamination or trying to force an underperforming aeroplane to climb can all produce it. Our explanation of why reducing angle of attack unstalls the wing covers the underlying aerodynamics.
How do you recognise a departure stall?
Recognise a departure stall from several cues together rather than waiting for one dramatic stall break.
| Cue | What it indicates | Common trap |
|---|---|---|
| Falling airspeed and poor climb | The aeroplane is losing energy while angle of attack increases | Pulling harder to preserve height |
| Stall horn, light, angle-of-attack warning or stick shaker | The wing is approaching its critical angle of attack | Ignoring it because the engine is producing power |
| Buffet or increasingly ineffective controls | Flow is separating and control authority is deteriorating | Waiting for a sharp nose drop that may never occur |
| Uncommanded yaw or wing drop | One wing may be stalling more deeply than the other | Applying large opposite aileron while still stalled |
Do not judge the condition from nose position alone. A departure stall can occur at a modest pitch attitude during a bank, skid, downdraught or abrupt pull; this guide to how aircraft attitude relates to the actual flight path explains why the visual picture can mislead.
Not every aeroplane gives noticeable buffet, and warning systems vary. High engine noise is not evidence that the wing is flying. A partial power loss can also lead to a departure stall if the pilot tries to maintain the previous climb attitude, so control the aeroplane before diagnosing the engine.
How do you recover from a departure stall?
The recovery priority is angle of attack, yaw, bank, power and airspeed—in that order unless the aircraft's approved procedure specifies otherwise.
- Reduce angle of attack immediately. Release the back pressure and lower the nose enough to remove the stall warning or buffet. The nose may need to go below the expected climb attitude, though not necessarily below the horizon. If automation is applying a nose-up command, disconnect it.
- Stop the yaw. Use measured rudder to prevent further yaw and keep the aeroplane coordinated. Do not stamp on the rudder in an attempt to lift a dropped wing.
- Bring the wings towards level. As the angle of attack decreases and roll control returns, use coordinated aileron and rudder. Avoid a large aileron input while the wing remains fully stalled because the down-going aileron can deepen the stall on that side.
- Set the appropriate power. In a light piston trainer this normally means verifying full available power, which may already be set, while controlling the resulting yaw. Turbine and multi-engine aeroplanes may require a specific thrust setting or memory procedure. Power selection must not delay unloading the wing.
- Accelerate before climbing again. Hold a safe attitude until the stall indications have stopped and the aeroplane has regained the prescribed recovery or climb speed. Raise the nose smoothly; an aggressive pull causes a secondary stall.
- Reconfigure progressively. Retract flap, landing gear or speed brakes only as directed by the aircraft procedure and once performance permits. Abrupt flap retraction can produce another sink close to the ground.
Should you use aileron after a wing drop?
Use coordinated aileron after unloading has restored roll effectiveness, not as the first response to a fully stalled wing. Rudder should stop yaw rather than act as a substitute roll control. Exact control use varies with aircraft design, so the flight manual or pilot's operating handbook takes precedence.
Why do departure stall recoveries go wrong?
The mistake we see most often in simulation is pulling harder because the ground appears close—the one action that keeps the wing stalled.
- Adding power without unloading: power cannot cure a wing held beyond its critical angle of attack, and it may increase yaw or pitch-up tendency.
- Trying to lose no altitude: refusing to lower the nose prolongs the stall and increases the eventual height loss.
- Using full opposite aileron: this can worsen the asymmetric stall and encourage autorotation.
- Retracting flap immediately: the sudden loss of lift can cause a second sink or stall.
- Returning to climb too early: pulling before sufficient airspeed has returned creates a secondary stall.
Can a departure stall be recovered close to the ground?
No fixed recovery height exists, and some low-level departure stalls are unrecoverable before ground contact. Height loss depends on how deeply the wing is stalled, bank and yaw, aircraft type, loading, pilot reaction and available thrust. Trying to guarantee zero height loss makes the recovery less effective.
If a light aeroplane shows abnormal stall cues before liftoff, rejecting the take-off while sufficient runway remains is usually safer than forcing it airborne. Just after liftoff, reducing angle of attack may result in a controlled runway contact; keeping the wings level and aligned is preferable to pulling into a full stall. Transport-category, engine-out and windshear decisions must follow the approved aircraft and operator procedures rather than this light-aircraft rule of thumb.
How can you prevent and practise a departure stall?
Prevention means using the calculated rotation and climb speeds, correct take-off trim and flap, smooth pitch inputs and coordinated turns. Do not force the published climb attitude when acceleration or climb performance is clearly inadequate. Excess mass and an out-of-limit centre of gravity can make the situation worse, as covered in our guide to how loading affects take-off and stall behaviour.
In a flight simulator, we recommend practising the departure configuration at a safe virtual altitude rather than repeatedly stalling just above the runway. Use the exercise to rehearse recognition, unloading, yaw control and progressive reconfiguration, but remember that many simulators understate buffet and control-force changes. Intentional practice in a real aeroplane belongs with a qualified instructor, at an approved altitude and under the aircraft's operating limitations.
What if the wing drop develops into a spin?
Sustained autorotation means the departure stall has progressed towards or into a spin, requiring the aircraft's approved spin-recovery procedure rather than larger roll inputs. At departure height there may be insufficient room to recover, which makes early yaw control critical. Our simulator spin-recovery sequence and aircraft-specific cautions explain the next stage without treating one generic mnemonic as suitable for every aeroplane.