Flight Instructors Training Procedures _revised AIC_x

2. EFFECTS AND RECOGNITION OF ENGINE
FAILURE DURING TURNS
3.
i.
EEFECT OF VARYING AIRSPEED AND
POWER/THRUST
Varying the speed at a constant power/thrust.
i. Lookout.
ii. Complete the HASELL checks.
iii. Enter a moderately banked left turn at normal
cruising airspeed.
iv. Close the right throttle and note:
When the outside engine fails the aeroplane
will yaw and slowly roll out of the turn and
enter a spiral descent in the opposite
direction.
v. Return to straight and level flight at cruising
power/thrust and speed.
vi. Re-enter a left turn. Close the left throttle and
note:
When the inside engine fails the aeroplane
will yaw and roll rapidly into direction of the
turn. The bank angle will increase and a
spiral descent will occur.
In both cases the visual indications will be
yaw, followed by a roll and a spiral descent.
vii. Return the aeroplane to twin engine straight
and level flight at cruising power/thrust and
speed.
viii. Mask the throttle quadrant and close the
throttles alternatively from moderately banked
turns in both directions.
During each simulated engine failure the
student must correctly identify which engine
has failed whilst maintaining control of the
aeroplane.
i. Lookout.
ii. Fly straight and level at cruising power/thrust
and speed.
iii. Close the left throttle whilst preventing yaw
with rudder. Use sufficient aileron to maintain
lateral level and confirm a constant heading is
being maintained.
iv. Maintain altitude (if possible) and note the
airspeed in asymmetric flight for the
power/thrust setting used.
Note the amount of rudder deflection and
control force required.
v. Raise the aeroplane’s nose and gradually
reduce the airspeed to. Vyse
As the airspeed is decreased a larger amount
of rudder will be needed to prevent yaw. Also
note that a greater aileron deflection will be
required to keep the wings level.
vi. Return to twin engine straight and level flight
at Vyse.
Summary: An engine failure at low airspeed
will lead to the need for a large rudder
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