How do you fly and land a twin-engine aircraft on one engine?

To fly and land a twin-engine aircraft on one engine, maintain directional control first, hold the published engine-out speed, use appropriate power on the operative engine, reduce drag, identify and verify the failed engine, then secure it by checklist. Divert to the nearest suitable aerodrome and plan the configuration, approach and go-around limits before final.

For Aviation & Real-World Flying, we treat that as a priority order, not a universal set of switch positions. The approved AFM/POH, emergency checklist and type-specific training always override a generic answer; piston twins, turboprops and jets do not share the same shutdown procedure.

What should you do first when one engine fails?

The first action is to stop the yaw and prevent the airspeed decaying below a controllable value. Altitude, radio calls and troubleshooting come after control.

1. Control the yaw: apply rudder towards the operative engine and use the small bank into that engine specified by the aircraft procedure. Do not try to hold heading with aileron alone.
2. Protect airspeed: adjust pitch towards the published engine-out speed and set the required power. If the aircraft is below minimum control speed and yawing uncontrollably, lower the nose and reduce operative-engine power as necessary; adding full power can increase the yaw.
3. Reduce drag: retract landing gear and flaps only in the published sequence and only when continuing airborne is the correct decision. Confirm each control before moving it.
4. Identify and verify: use rudder pressure, engine indications and a controlled throttle check to confirm the failed side. Identification alone is not enough.
5. Secure and plan: feather or isolate the failed engine as applicable, trim the aircraft, declare an emergency and head for a suitable landing site.

If an engine fails on the runway before the aircraft's published decision point, reject the take-off according to the type procedure. Many light twins do not have a transport-category V1, so the pilot must brief a go/no-go plan using approved performance data, runway length and conditions.

After lift-off, never sacrifice control to force a climb. If the aircraft cannot remain above control speed or clear obstacles, a controlled landing ahead may be safer than holding the nose up until control is lost.

Can a twin-engine aircraft climb on one engine?

A twin can climb on one engine only when its available thrust exceeds the drag under the actual conditions. Positive single-engine climb is not guaranteed for every twin, particularly among light piston aircraft.

Losing half the installed power can remove far more than half the climb performance because climb depends on excess power. An aircraft that climbed comfortably on two engines may only maintain altitude, drift down or descend with one engine stopped.

• Gross mass and centre of gravity
• Density altitude and temperature
• Terrain and obstacle height
• Landing-gear and flap position
• Whether a propeller is feathered or windmilling
• Icing, airframe contamination or other damage
• Power available from the operative engine

VMC and Vyse serve different purposes. Our guide to critical aviation V-speeds and their meanings explains the wider set, but these three matter most during light-twin engine-out flight:

Actual control margins vary with power, configuration, bank, mass, centre of gravity and atmospheric conditions. The red line therefore does not act like an invisible barrier: getting slow with high power and poor coordination can still produce a rapid loss of control.

How do you identify and secure the failed engine?

Identify the suspect engine from the yaw, rudder pressure and engine instruments, then verify it before shutting anything down. The familiar “dead foot, dead engine” aid identifies the foot doing little work, but it does not prove which engine should be feathered.

When control, altitude and the checklist permit, smoothly retard the suspected engine's throttle. Little or no change confirms the failed side; increased yaw or lost performance means the operative engine was selected, so restore it immediately. Feathering the wrong propeller can leave the aircraft without useful power.

On a feathering propeller, moving the blades towards the airflow greatly reduces the drag of a stopped or windmilling propeller. Fixed-pitch propellers cannot normally be feathered, while jets have no propeller and use different shutdown and drift-down procedures. Fuel, ignition, electrical and fire-isolation actions must come from the aircraft's checklist rather than a memorised generic flow.

An engine fire or severe mechanical damage may require immediate isolation under approved memory items. Otherwise, attempt a restart only when the suspected cause, altitude and checklist support it; do not use vital terrain or landing margin on prolonged troubleshooting.

Not every twin has the same asymmetric-thrust characteristics. Counter-rotating propellers may remove the conventional critical engine, while the Skymaster's centreline-thrust arrangement changes engine-out handling substantially. Neither design guarantees that the aircraft can climb on its remaining engine.

How do you land a twin safely with one engine?

A safe one-engine landing uses the nearest suitable runway, a stabilised approach and the configuration specified by the aircraft checklist. The geographically closest runway may be unsuitable because of length, weather, terrain, obstacles or crosswind.

1. Select and declare: advise air traffic control of the emergency, the failed side, aircraft capability and assistance required. Prefer a long runway with favourable weather and an uncomplicated approach.
2. Brief the limits: calculate the available single-engine performance and decide before descent whether a missed approach is viable. Include the landing configuration, speeds and point beyond which landing is the safer option.
3. Manage drag: delay major drag changes until the runway is assured, but configure early enough to satisfy the aircraft's stabilised-approach criteria. Full flap, partial flap and no flap are type-specific choices, not universal rules.
4. Fly a coordinated final: hold the published engine-out approach speed, make smooth power changes and avoid steep or skidding turns. Slow below that speed only when the landing is assured and the approved procedure calls for it.
5. Reduce power smoothly: as the operative throttle closes during the flare, the asymmetric yaw decreases. Anticipate the changing rudder and trim forces while maintaining the centreline through touchdown and braking.

Do not assume that every engine-out approach can be salvaged with a go-around. Gear and flap drag, high mass, temperature and terrain may make single-engine climb marginal or impossible. If the data show that a go-around is available, initiate it promptly while speed remains healthy; once low, slow and fully configured, forcing a climb can be more dangerous than completing the landing.

The blanket advice never to turn towards the failed engine is also too crude. A shallow, coordinated turn can be flown in either direction when the aircraft has adequate speed, but steep bank, skid and abrupt power changes sharply reduce the margin near the ground.

Autopilot and yaw-damper limits

An autopilot or yaw damper should be used only after the aircraft is stabilised and only when the flight manual permits engine-out operation. Many autopilots hold heading through bank rather than sustained rudder input, which can mask poor coordination or disconnect at an awkward moment.

A yaw damper suppresses yaw oscillations; it does not replace the manual rudder needed to oppose asymmetric thrust. Our explanation of what a yaw damper does and cannot do covers that distinction in more detail.

Common engine-out mistakes

• Holding altitude while airspeed decays towards or below VMC
• Treating the red VMC marking as a guaranteed safe minimum
• Feathering an engine after identification but without verification
• Extending gear or flap too early and destroying climb performance
• Assuming one engine provides half the normal climb rate
• Using abrupt power changes or excessive bank close to the ground
• Relying on automation instead of rudder and coordinated flight

Simulation is useful for practising the order of actions without real-world risk. Our MSFS 2024 engine-failure exercise covers directional control, failed-engine identification and landing decisions, but simulator handling and performance must never replace the real aircraft's approved data or qualified multi-engine instruction.