时间：2011-03-11 23:13来源：蓝天飞行翻译 作者：admin 点击：次
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landing gear extended speed. 14 CFR Part 1: “The maximum speed at which an aircraft can be safely flown with the landing gear extended.” landing gear operating speed. 14 CFR Part 1: “The maximum speed at which the landing gear can be safely extended or retracted.” landing gear position indicating system. A system required on all aircraft having retractable landing gear to show the pilot the position of the landing gear. The most commonly used system on modern aircraft is a series of lights. When all three wheels are down and locked, three green lights appear on the instrument panel. A red light indicates that the landing gear is in transit. It has been released by the up-locks, but it has not yet locked down. landing gear warning system. A warning system used in an aircraft with retractable landing gear, to warn the pilot of an unsafe landing gear condition. A red light indicates that any of the wheels are in an unsafe condition, and an aural warning system sounds a horn if any of the wheels are not down and locked when the throttles are retarded for landing. landing light (aircraft component). A high-intensity spotlight mounted on an aircraft and aimed in such a direction that it shines on the runway when the aircraft is on the final approach for landing. landing minimums, IFR (aircraft operation). The minimum visibility prescribed for landing a civil aircraft while using an instrument approach procedure. The minimums apply with other limitations set forth in 14 CFR Part 91 with respect to the minimum descent altitude (MDA) or decision height (DH) prescribed in the instrument approach procedures. landing roll. The distance from the point of touchdown to the point where the aircraft can be brought to a stop or can exit the runway. landing sequence. The order in which aircraft are positioned for landing. landing/takeoff area. Any locality, either on land, water, or structures, including airports/heliports and intermediate landing fields, which is used, or intended to be used, for the landing and takeoff of aircraft. A landing/takeoff area is not required to have facilities for shelter, servicing, and receiving or discharging passengers or cargo. landing weight (aircraft specification). The maximum weight an aircraft is allowed to have for landing. Landings put far more stress into an aircraft structure than takeoffs, and therefore large aircraft that fly for long distances are allowed to have a greater weight for takeoff than for landing. Airplanes approved for a greater takeoff weight than landing weight must have some method of jettisoning enough fuel to bring the weight down to the allowable landing weight if the aircraft should have to land before enough fuel has been consumed by the engines. landing wires (airplane structural components). Brace wires used to support the weight of the wings during landing and when they are not producing lift. The landing wires of a biplane run from the center section of the upper wing to the interplane strut on the lower wing. |
