航空術(shù)語(yǔ)詞典Dictionary of Aeronautical Terms 下

時(shí)間：2011-03-11 23:18來源：藍(lán)天飛行翻譯 作者：航空 點(diǎn)擊：次

If a small hole is drilled at the end of the crack, the forces, instead of being concentrated at the end of the crack, spread out around the circumference of the hole, and much more force is needed to tear the metal.
stopover flight plan (air traffic control). A flight plan format which permits in a single submission, the filing of a sequence of flight plans through interim full-stop destinations to a final destination.
stopway. 14 CFR Part 1: “An area beyond the takeoff runway, no less wide than the runway and centered upon the extended centerline of the runway, able to support the airplane during an aborted takeoff, without causing structural damage to the airplane, and designated by the airport authorities for use in decelerating the airplane during an aborted takeoff.”
storage battery. A battery composed of several secondary electrical cells. A discharged storage battery can be recharged by placing it across a source of direct current until the chemical composition of the plates and the electrolyte change to their charged condition.
storm-detection radar (radar meteorology). A weather radar designed to detect hydrometeors of precipitation size. Storm-detection radar is used primarily to detect storms containing large drops of water or hailstones, as opposed to clouds and light precipitation of small drop size.
Stormscope (weather detection indicator). The registered trade name of an instrument that detects severe weather conditions by measuring the amount and intensity of static electrical discharges within the storm.
STOVL (Short TakeOff and Vertical Landing). STOVL performance of an aircraft is the ability of the aircraft to take off and clear a 50-foot obstruction in a distance of 1,500 feet from the beginning of the takeoff run. The aircraft can land vertically, with no forward speed.
straightedge. A bar, or a piece of metal, wood, or plastic, used to check another piece of material or surface for straightness, or used to draw straight lines. A straightedge is similar to a ruler, except a straightedge does not have graduations marked on it.
straight-in IFR approach (air traffic control). An instrument approach in which the final approach is begun without first executing a procedure turn. A straight-in approach is not necessarily completed with a straight-in landing, nor is it made to straight-in landing minimums.
straight-in VFR approach (air traffic control). An entry into an airport traffic pattern by intercepting the extended runway center line without executing any other portion of the traffic pattern.
straight-peen hammer. A type of hand-held hammer used for forming sheet metal. One end of the head is round and has a flat face. The other end is wedge-shaped, with the apex (peak) of the wedge parallel to the handle. A cross peen hammer is much like a straight peen hammer except the wedge on its head is perpendicular to the handle.
straight-polarity arc welding. DC electric arc welding in which the electrode is negative with respect to the work.

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