Principles Of Flight - One Engine Inoperative

Question 1

What two factors effect the amount of yaw in OEI operations?

Answer 1

Total thrust produced by the engine

Distance from the center of gravity where the thrust is produced

Question 2

What factors cause yaw and roll when an engine fails

Answer 2

Asymmetrical thrust and asymmetrical lift

Question 3

Which direction will an airplane yaw after an engine failure

Answer 3

Toward the inoperative engine

Question 4

What is the primary and secondary causes for yaw with OEI

Answer 4

Primary is asymmetrical thrust

Secondary is drag from the windmilling propeller

Question 5

Which direction will an airplane roll during

Answer 5

Toward the inoperative engine

Question 6

What two factors cause the rolling moment during OEI operations

Answer 6

1. The initial yaw produces roll

2. The accelerated slip stream behind the operative engine produces more lift

Question 7

Why does the initial yaw from an engine failure produce roll

Answer 7

Yaw causes one wing to accelerate and the other to decelerate
The accelerated wing creates more lift

Question 8

What acronym can you use for engine failure in flight

Answer 8

CPDIVE

Control
Power
Drag
Identify
Verify
Evaluate

Question 9

How can you help maintain control of the airplane (CPDIVE)

Answer 9

Stop the yaw
Stop the roll
Set pitch for Vyse

Question 10

What is VTF

Answer 10

Vertical Tail Force

Rudder pedal creates vertical tail force to counter asymmetrical yaw from OEI

Question 11

Which direction should you put aileron to counter roll

Answer 11

Toward the rudder

Question 12

How do you achieve zero side slip

Answer 12

By stopping the yaw and adding 2-3 degrees of bank toward the rudder pressure

Question 13

What should you do if more than 2-3 degrees of aileron is required to stop the roll?

Answer 13

Add more rudder

Question 14

What order should you move the engine controls forward (CPDIVE)

Answer 14

Mixture
Prop
Throttle

Question 15

What is the procedure to reduce drag in OEI (CPDIVE)

Answer 15

Retract flaps and landing gear and adjust cowl flaps as necessary

Question 16

How can you identify which engine has failed (CPDIVE)

Answer 16

Dead foot dead engine

Left foot applying pressure
Right foot dead
Right engine dead

Question 17

Once identifying the failed engine via dead food dead engine, how can you verify it (CPDIVE)

Answer 17

By reducing the throttle and ensuring there is no change of noise or yaw.

Question 18

What items should be evaluated for OEI (CPDIVE)

Answer 18

If the prop should be feathered immediately
How much time and altitude is remaining
What is the airplanes performance

Question 19

During OEI landings what is the priority

Answer 19

Fly the airplane

Question 20

Airworthiness regulations require lights twins to have what kind of singe-engine climb performance

Answer 20

No performance is required

Question 21

What determines climb performance

Answer 21

Excess power

Question 22

How much excess power available is lost during OEI operations

Answer 22

Approximately 80%

Question 23

What are 6 ways to optimize OEI performance

Answer 23

1. Establish 0 side slip
2. Maintain Vyse
3. Maintain minimum bank angle while turning
4. Retract landing gear and flaps
5. Feather inop propeller
6. Adjust cowl flaps

Question 24

What is side-slip

Answer 24

Anytime the relative wind does not align with the fuselage

Question 25

What are 3 possible side slip conditions

Answer 25

1. Side slip toward inoperative engine
2. Side slip to operative engine
3. Zero side slip

Question 26

What signs indicate the airplane is not in a side slip?

Answer 26

1. The yaw string is straight up
2. The inclinometer is deflected half width toward the operating engine
3. Performance is maximize

Question 27

What factors effecting Vmc does the pilot have control over?

Answer 27

Power on operating engine
Side slip
Rudder and aileron positions
Propeller condition