critical engine

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critical engine

The engine whose failure would cause the most adverse effect on the performance and handling qualities of the aircraft. It is that engine whose loss would result in the maximum disadvantage because of asymmetrical effects or result in other adverse effects.
critical frequency
i. The frequency at which a critical angle becomes zero. The highest frequency at which vertical reflection is possible.
ii. The frequency corresponding to the resonance frequency of a blade, control surface, or other vibrating or moving structure.
iii. The frequency of a helicopter main-rotor-blade passing at which the whole helicopter resonates on the landing gear.
References in periodicals archive ?
Being initially fearful of the asymmetric thrust caused by setting full afterburner, I slowly realized that the back of the boat was rapidly becoming a much greater hazard.
Capt Bagby continued his climb out, deftly maintaining coordinated flight in this challenging low altitude, low airspeed, and asymmetric thrust configuration.
A statement released by the ministry yesterday (18 December) indicated that the crash had been caused by 'an asymmetric thrust of the engines, a possible [medical] incapacity of the pilot to take proper action during the flight and insufficient action taken by the co-pilot.
The pilot applied right and forward stick, right rudder and asymmetric thrust on the downwind engine.
Overall, the entire system provides redundant power should an engine fail, with only a reduction in total power, but no asymmetric thrust.
He turned the aircraft back toward the carrier and wrestled with the asymmetric thrust.
However, we had the altitude to reduce power on our operating engine, thereby reducing the asymmetric thrust and descend.
I adjusted my aileron and rudder trim to account for single-engine operation and found that line-up would be extra challenging because of the asymmetric thrust.
This meant we would face decelerating with asymmetric thrust and, by the way, the C-2 does not have anti-skid brakes.
Without nosewheel steering, I had to use rudder and then asymmetric thrust from the engines below 50 knots to maintain centerline.
Asymmetric thrust and the directional-control challenges it provides is the whole idea behind not bringing the power levers to ground idle or reverse without beta lights.
Asymmetric thrust for rollout was our best bet, but we would try to use nosewheel steering at a slow speed to assess the damage.

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