時間：2011-03-11 23:18來源：藍天飛行翻譯 作者：航空 點擊：次
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“Out” (air traffic control). A term used in air traffic control to indicate that the conversation is ended and no response is expected. outer area (air traffic control). Nonregulatory airspace surrounding designated Class C airspace airports in which ATC provides radar vectoring and sequencing on a full-time basis for all IFR and participating VFR aircraft. The normal radius is 20 nautical miles, with some variations based on site-specific requirements. The outer area extends outward from the primary Class C airspace airport and extends from the lower limits of radar/radio coverage up to the ceiling of the approach control’s delegated airspace, excluding the Class C charted area and other airspace as appropriate. outer fix (air traffic control). A general term used within ATC to describe fixes in the terminal area, other than the final approach fix. Aircraft are normally cleared to these fixes by ARTCC or an approach control facility, and aircraft are normally cleared from these fixes to the final approach fix or final approach course. outer fix time (air traffic control). A calculated time to depart the outer fix in order to cross the vertex at the actual calculated landing time (ACLT). The time reflects descent speed adjustments and any applicable delay time that must be absorbed prior to crossing the meter fix. outflow valve (aircraft pressurization system component). The valve in an aircraft pressurization system that controls the pressure inside the aircraft cabin. More air than needed is pumped into the cabin, and the outflow valve controls the air allowed to escape to maintain the pressure in the cabin at the correct level. Operation of the outflow valve is controlled by the cabin pressure regulator. out-of-phase. A condition of cyclic values in which two waves do not pass through zero at the same time. out-of-rig (aircraft flight condition). A condition of aircraft rigging that prevents hands-off flight. When an aircraft is properly rigged and flown in still air at the correct power setting, it will maintain its altitude and heading without the pilot touching the controls. But, if it is out-of-rig, it will not hold its altitude nor its heading. out-of-round (condition of physical wear). The condition of a circular object when its wear is not uniform around its circumference. Wear changes its shape from circular to oblong. out-of-track (helicopter rotor condition). A condition of a helicopter rotor in which the blade tips do not follow the same path in their rotation. output power (electronic circuit). The power an electronic circuit delivers to its load. output transformer (electronic component). An audio-frequency transformer, used between the last stage of an audio-frequency amplifier and a speaker. The impedance of the amplifier’s output stage is usually quite high, and the impedance of a speaker is low. For the maximum amount of power to be transferred from the amplifier to the speaker, the impedance of the amplifier must match that of the speaker, and this matching is done with an output transformer. |
