時間：2011-09-15 17:20來源：藍天飛行翻譯 作者：航空 點擊：次
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STOVL short take-off, vertical landing. T T true. Also TH, true heading, and TT, true track. TACAN tactical air navigation system. An ultra-high frequency electronic navigation aid which provides suitably-equipped aircraft with a continuous indication of bearing and distance to the selected Tacan station. The distance element can be received by civilian DMF equipment, but otherwise Tacan is principally a military navaid. TAF Terminal Area Forecast TAS true airspeed. Rectified airspeed corrected for altitude and outside air temperature. TBO time between overhauls, an engine manufacturer's recommended overhaul interval in hours, a rough and not guaranteed guide to life expectancy of an aero-engine before it will need overhaul. TCA Terminal Control Area (USA) TCAS traffic alert and collision avoidance system. U.S. developed radar-based airborne collision avoidance system operating independently of ground-based equipment. TCAS-I generates traffic advisories only, TCAS-II provides advisories and collision avoidance instructions in the vertical plane. TEMPO temporarily, term used in Met reports. TET turbine entry temperature TGT turbine gas temperarture THR or thld threshold TMA Terminal Control Area. An area of controlled airspace at the intersection of airways in the vicinity of control zones (CTRs) around major airports. TO take-off (sometimes TKOF) TODA take-off distance available. Also TODR, take-off distance required, and TORA, take-off run available. track actual flight path of an aircraft over the ground. transponder airborne receiver/transmitter portion of the SSR system which receives the interrogation signal from the ground and automatically replies according to mode and code selected. Modes A and B are used for identification, using a four-digit number allocated by air traffic control. Mode C gives automatic altitude readout from an encoding altimeter. |
