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Understand engine-out procedures in multi-engine aircraft, including Vmc, Vxse, Vyse, and operational requirements for ferry flights with inoperative engines.
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ENGINE-OUT PROCEDURES Vmc – Minimum control speed with the critical engine inoperative Vxse – Best single engine angle-of-climb speed Vyse – Best single engine rate-of-climb speed
MISCELLANEOUS • When an engine fails in flight the effect on aircraft performance is drastic. • Loss of one engine on a two-engine aircraft will result in a loss of climb performance in excess of 50% (usually <80%) • Climb performance is determined by the amount of power available in excess of that required for level flight • If an engine fails in cruise, pilot should slow the aircraft to its best single-engine rate-of-climb speed (Vyse) and apply maximum continuous power on remaining engine. • The aircraft may or may not climb. • If it cannot climb at the present altitude at least it will descend at the minimum possible rate of sink and level off at its max engine-out altitude. • A multi-engine aircraft should never be flown below its Minimum Control Speed (Vmc). • It may be impossible to maintain direction control with the other engine operating at full power – Vmc will be highest with most rearward-allowed CG
MISCELLANEOUS • Three/four-engine turbine-powered airplane may be ferried to a maintenance base with one engine inoperative with the following requirements met: • The airplane model must have been test flown to show operation is safe • Operator’s flight manual must contain performance data • Operating weight must be limited to min required plus required reserve fuel • Takeoffs are limited to dry runways • Computed takeoff performance must be within acceptable limits • The initial climb cannot be over thickly-populated areas • Only required flight crew may be on the aircraft • Weather conditions at the takeoff and destination airports must be VFR
QUESTION 8369. If an engine failure occurs at an altitude above single-engine ceiling, what airspeed should be maintained? A – Vmc B – Vyse C – Vxse
QUESTION 8369. If an engine failure occurs at an altitude above single-engine ceiling, what airspeed should be maintained? A – Vmc B – Vyse C – Vxse
QUESTION 8370. What is the resulting performance loss when one engine on a twin-engine aircraft fails? A – Reduction of cruise airspeed by 50% B – Reduction of climb by 80-90% C – Reduction of all performance by 50%
QUESTION 8370. What is the resulting performance loss when one engine on a twin-engine aircraft fails? A – Reduction og cruise airspeed by 50% B – Reduction of climb by 80-90% C – Reduction of all performance by 50%
QUESTION 8371. Under what condition is Vmc the highest? A – Gross weight is at maximum allowable value B – CG is at the most rearward allowable position C – CG is at the most forward allowable position
QUESTION 8371. Under what condition is Vmc the highest? A – Gross weight is at maximum allowable value B – CG is at the most rearward allowable position C – CG is at the most forward allowable position
QUESTION 9355. Which operational requirement must be observed by a commercial operator when ferrying a large, three-engine, turbojet-powered airplane from one facility to another to repair an inoperative engine? A – The computed takeoff distance to reach V1 must not exceed 70% of the effective runway length B – The existing and forecast weather for departure, en route and approach must be VFR C – No passengers may be carried
QUESTION 9355. Which operational requirement must be observed by a commercial operator when ferrying a large, three-engine, turbojet-powered airplane from one facility to another to repair an inoperative engine? A – The computed takeoff distance to reach V1 must not exceed 70% of the effective runway length B – The existing and forecast weather for departure, en route and approach must be VFR C – No passengers may be carried
QUESTION 9355-1. You are assigned to ferry a large, three-engine turbojet-powered airplane from one facility to another to repair an inoperative engine. You know you are restricted to A – VFR weather for takeoff, en route and landing B – flight crewmembers only aboard C – a computed takeoff distance to reach V1 that cannot exceed 70% of the effective runway length
QUESTION 9355-1. You are assigned to ferry a large, three-engine turbojet-powered airplane from one facility to another to repair an inoperative engine. You know you are restricted to A – VFR weather for takeoff, en route and landing B – flight crewmembers only aboard C – a computed takeoff distance to reach V1 that cannot exceed 70% of the effective runway length
QUESTION 9358. A commercial operator plans to ferry a large, four-engine, reciprocating-engine-powered airplane from one facility to another to repair an inoperative engine. Which is an operational requirement for the three-engine flight? A – The gross weight at takeoff may not exceed 75% of the maximum certified gross weight B – Weather conditions at the takeoff and destination airports must be VFR C – The computed takeoff distance to reach V1 must not exceed 70% of the effective runway length
QUESTION 9358. A commercial operator plans to ferry a large, four-engine, reciprocating-engine-powered airplane from one facility to another to repair an inoperative engine. Which is an operational requirement for the three-engine flight? A – The gross weight at takeoff may not exceed 75% of the maximum certified gross weight B – Weather conditions at the takeoff and destination airports must be VFR C – The computed takeoff distance to reach V1 must not exceed 70% of the effective runway length
QUESTION 9360. Which operational requirement must be observed when ferrying a large, turgine-engine-powered airplane when one of its engines is inoperative? A – The weather conditions at takeoff and destination must be VFR. B – Weather conditions must exceed the basic VFR minimums for the entire route, including takeoff and landing. C – The flight cannot be conducted between official sunset and sunrise.
QUESTION 9360. Which operational requirement must be observed when ferrying a large, turgine-engine-powered airplane when one of its engines is inoperative? A – The weather conditions at takeoff and destination must be VFR. B – Weather conditions must exceed the basic VFR minimums for the entire route, including takeoff and landing. C – the flight cannot be conducted between official sunset and sunrise.