时间：2014-04-25 17:29来源：蓝天飞行翻译 作者：航空 点击：次
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Clearway An area beyond the runway, not less than 500 feet wide, centrally located about the extended centerline of the runway, and under the control of the airport authorities. The clearway is expressed in terms of a clearway plane, extending from the end of the runway with an upward slope not exceeding 1.25% above which no object nor any terrain protrudes. However, threshold lights may protrude above the plane if their height above the end of the runway is 26 inches or less and if they are located to each side of the runway. Stopway An area beyond the take-off runway at least as wide as the runway and centered upon the extended centerline of the runway, able to support the airplane during an aborted take-off without causing structural damage to the airplane, and designated by the airport authorities for use in decelerating the airplane during an aborted take-off. Actual Landing Actual landing distance is the distance from a 50 feet height at VREF Distance with the flaps in the normal landing configuration, to a full stop on a smooth, dry, level, hard-surfaced runway and ISA temperature. Landing Field Length The performance charts in this manual include factors for opera¬tional rules which require the use of 60% of the available runway in determining landing field length requirements. The required landing field length on a dry runway is the actual landing distance divided by 0.6. The landing field length required under wet runway conditions is equal to 115% of the dry runway landing field length. Take-off Path The take-off path begins from a standing start and ends at 1500 feet above the take-off surface or at the point where transition from take-off to enroute configuration is completed, whichever is higher. Take-off Flight Path The take-off flight path begins at the end of the take-off distance and at a height of 35 feet above the take-off surface, and ends at 1500 feet above the take-off surface, or at the point where transition from take-off to enroute configuration is completed, whichever is higher. This is also known as the Gross Take-off Flight Path. |
