Quantcast Dynamic Engine Cut - P-5530025

 

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JOINT ADVANCED MULTI-ENGINE T-44A
(6)
Maximum allowable aft CG (Center of Gravity), and
(7)
Full rudder deflection.
NOTES:
(1)
Vsse (91 KIAS) is single-engine safety speed; the speed above both Vmca and stall speed. Intentional
failing of one engine below this speed (airborne) is prohibited.
(2)
Vmcg (63 KIAS) is minimum control speed on the ground; the minimum speed at which the aircraft
can maintain runway centerline (using maximum rudder) with the critical engine windmilling, and
the opposite engine at full power. At speeds below 63 KIAS insufficient airflow exists to
directionally control the aircraft.
Basic concepts demonstrated in the Vmca Demonstration are common to all multi-engine aircraft.
Recognition is critical. The FAA training pamphlet excerpts starting on page 1-19 provide additional
insight into single-engine operations and will help you understand the maneuver.
Begin on a numbered heading at 150 KIAS with prop sync off. The following procedures will be utilized
to demonstrate Vmca after it has been thoroughly briefed:
(1)
Altitude
Minimum 8000' AGL.
(2)
Power
400 ft-lbs.
(3)
Flaps
Approach.
(4)
Gear
Up.
(5)
Props
Full forward.
(6)
Airspeed
Approximately 110 KIAS.
(7)
Power
Set idle on the left (critical) engine and smoothly apply maximum allowable power on
the right (operating) engine.
(8)
Attitude
Raise the nose so the airspeed continues to bleed off at a rate of approximately 1 knot
per second, keep the ball centered and trim while maintaining directional control with
rudder and 5 of bank into the good engine. Observe the rudder is full throw (or nearly
so) with full rudder trim applied, and a significant amount of aileron is required to
maintain 5 of bank. Note when the nose begins to yaw into the dead engine (visually
or by the turn needle and RMI ). This will occur at approximately 86 KIAS. Also note
the position of the rudder and ailerons.
NOTE: Some AOB may need to be taken out in order to simulate Vmc air due to the high-density altitude. Vmc air
decreases with altitude.
(9)
Recovery
Slowly reduce power on the operating engine and decrease AOA. As airspeed
accelerates above Vmca, smoothly reapply power on the operating engine. At 102 KIAS
execute a single-engine waveoff. The maneuver is complete when established in a climb,
clean, with 102 KIAS or greater.
NOTE: During this maneuver, the T-44 has been inadvertently spun in a clean configuration following rapid power
application. Use approach flaps to ensure stall speed is below Vmca. Single-engine power-on flight below 86 KIAS
is prohibited.
126.
Dynamic Engine Cut
The dynamic engine cut simulates an engine failure immediately after takeoff with a windmilling prop. It
allows practice of critical single-engine skills at a safe altitude. Emphasis is on heading and airspeed
control, minimum loss of altitude, and completion of emergency checklist items.
Begin on a numbered heading at 150 KIAS with prop sync off. Maintain level flight prior to setting a
takeoff attitude. Utilize the following procedures:
1-14
FAMILIARIZATION STAGE


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