Exercise 16 Forced Landing Without Power

1. You experience complete engine failure what is your initial action?

Pitch the aircraft for best glide speed and trim quickly

Request for assistance and transmit a mayday call

Turn towards a suitable field

Attempt engine restart

First pitch aircraft for Vgl or best glide speed. After that choose a landing surface for force landing.

Explanation

First pitch aircraft for Vgl or best glide speed. After that choose a landing surface for force landing.

Submit

3. What effect does lowering flaps have on glide speed and distance?

Lowering flaps will decrease glide speed and increase gliding distance

Lowering flaps will decrease glide speed and decrease gliding distance

Lowering flaps to take-off position will decrease glide speed and increase gliding distance

Lowering flaps to take-off position will increase glide speed and increase gliding distance

Lowering flaps will decrease glide speed and decrease gliding distance because flaps increase the lift produced by the wings, which allows the aircraft to maintain a slower speed during landing or takeoff. When the flaps are lowered, the increased lift causes an increase in drag, which slows down the aircraft. This decrease in speed results in a shorter gliding distance as the aircraft loses momentum.

Explanation

Lowering flaps will decrease glide speed and decrease gliding distance because flaps increase the lift produced by the wings, which allows the aircraft to maintain a slower speed during landing or takeoff. When the flaps are lowered, the increased lift causes an increase in drag, which slows down the aircraft. This decrease in speed results in a shorter gliding distance as the aircraft loses momentum.

4. Which of the following is correct regarding use of flaps?

They are not necessary if there is enough room for a long landing run

They should be lowered once you know you will reach the field

They should never be used

First notch of flaps should be lowered on base leg and full flaps once wings level on final

Lowering the flaps increases drag and glide distance. Lower them only when you are certain you will reach the field.

Explanation

Lowering the flaps increases drag and glide distance. Lower them only when you are certain you will reach the field.

5. How would you make a force landing?

Into crosswind on a medium size field

Into tailwind on a large field

Into headwind on a road with no traffic

Into headwind on a small field

Roads are not good for landing as there is often traffic. Even if no traffic is expected there are often power-lines or other structures in a close vicinity which are very hard to see from the air.

Landing into tailwind should be avoided due to increased kinetic energy. Kinetic energy increases exponentially. Landing into 10kt tailwind instead of 10kt headwind on a typical SEP aircraft would increase crash energy by 2.25 times.

Explanation

Roads are not good for landing as there is often traffic. Even if no traffic is expected there are often power-lines or other structures in a close vicinity which are very hard to see from the air.

Landing into tailwind should be avoided due to increased kinetic energy. Kinetic energy increases exponentially. Landing into 10kt tailwind instead of 10kt headwind on a typical SEP aircraft would increase crash energy by 2.25 times.

6. You experience engine failure during departure from runway 36. You are at 400 feet with no runway remaining ahead of you. The wind is 270 degrees at 5 knots. There is an open field approximately 4 NM to your left. What will you do?

Start an immediate turn to the right with high angle of bank and land on runway 18

Start an immediate turn to the left with shallow angle of bank and land on runway 18

Land straight ahead avoiding obstacles

Start a shallow turn towards the field on your left

There is absolutely no chance you can make it back to the field or on the field on your left. The safest and right option is to land into the terrain ahead and use the little time available to prepare for the forced landing.

Explanation

There is absolutely no chance you can make it back to the field or on the field on your left. The safest and right option is to land into the terrain ahead and use the little time available to prepare for the forced landing.

7. During glide your aiming point is moving upwards (Sight line angle reducing) this means.

In order to make it to the aiming point you should further slow down your aircraft

You will not reach your aiming point

You will overfly the aiming point

You will reach reach your aiming point

During glide, the aiming point appears to be moving upwards due to the reducing sight line angle. This means that if you continue at the same speed, you will not be able to reach your aiming point. Slowing down your aircraft further is necessary in order to compensate for the upward movement of the aiming point and ensure that you reach it successfully.

Explanation

During glide, the aiming point appears to be moving upwards due to the reducing sight line angle. This means that if you continue at the same speed, you will not be able to reach your aiming point. Slowing down your aircraft further is necessary in order to compensate for the upward movement of the aiming point and ensure that you reach it successfully.

8. An aircraft with a 1:15 glide ratio is able to glide from an altitude of 2000 feet

Approximately 3NM

Approximately 5NM

Approximately 8NM

Approximately 10NM

From 1000 feet aircraft would glide 15 000 feet. 15 000 feet is 2.468 NM so from 2000 feet glide distance is 4.936 NM

Explanation

From 1000 feet aircraft would glide 15 000 feet. 15 000 feet is 2.468 NM so from 2000 feet glide distance is 4.936 NM

9. On final leg you should not use slipping (side slip) to control height as this increases stall speed and a possibility to enter a spin at low height.

True

False

Slipping is an effective way of controlling the height on final. Remember that turbulent airflow to due to the maneuver to the pitot / static system may give unreliable readings on the air speed indicator. Therefor use nose position to determine you have equate airspeed.

Explanation

Slipping is an effective way of controlling the height on final. Remember that turbulent airflow to due to the maneuver to the pitot / static system may give unreliable readings on the air speed indicator. Therefor use nose position to determine you have equate airspeed.

10. A heavier aircraft will

Glide the same distance than a lighter aircraft with a higher glide speed

Glide the same distance than a lighter aircraft with a lower glide speed

Glide further distance than a lighter aircraft with the same glide speed

Glide shorter distance than a lighter aircraft with a higher glide speed

The given answer states that a heavier aircraft will glide the same distance as a lighter aircraft with a higher glide speed. This means that even though the lighter aircraft may have a higher speed, the heavier aircraft will still cover the same distance during gliding. This can be attributed to the heavier aircraft having more momentum and inertia, allowing it to maintain its glide distance despite a lower speed compared to the lighter aircraft.

Explanation

The given answer states that a heavier aircraft will glide the same distance as a lighter aircraft with a higher glide speed. This means that even though the lighter aircraft may have a higher speed, the heavier aircraft will still cover the same distance during gliding. This can be attributed to the heavier aircraft having more momentum and inertia, allowing it to maintain its glide distance despite a lower speed compared to the lighter aircraft.

11. Is the following correct. After experiencing engine failure you should first pitch for Vgl and quickly trim the aircraft. Then you choose a suitable field and plan how you will get there. If you have time try to restart the engine. If you are unable to restart the engine you must transmit a mayday call before making crash checks which typically include securing the engine, turning the fuel and master switch, warning passengers and unlatching doors.

True

False

Everything else is correct except you are not required to transmit mayday. Do it only if you have the time. Always fly the airplane first.

Explanation

Everything else is correct except you are not required to transmit mayday. Do it only if you have the time. Always fly the airplane first.