時間：2011-04-18 00:52來源：藍天飛行翻譯 作者：航空 點擊：次
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b.TRSA Service. This service provides, in addition to basic radar service, sequencing of all IFR and participating VFR aircraft to the primary airport and separation between all participating VFR aircraft. The purpose of this service is to provide separation between all participating VFR aircraft and all IFR aircraft operating within the area defined as a TRSA. c.Class C Service. This service provides, in addition to basic radar service, approved separation between IFR and VFR aircraft, and sequencing of VFR aircraft, and sequencing of VFR arrivals to the primary airport. d.Class B Service. This service provides, in addition to basic radar service, approved separation of aircraft based on IFR, VFR, and/or weight, and sequencing of VFR arrivals to the primary airport(s). (See CONTROLLED AIRSPACE.)(See TERMINAL RADAR SERVICE AREA.)(Refer to AIM.)(Refer to AIRPORT/FACILITY DIRECTORY.)TERMINAL-VERY HIGH FREQUENCY OMNI-DIRECTIONAL RANGE STATION. A very high frequency terminal omnirange station located on or near an airport and used as an approach aid. (See NAVIGATIONAL AID.)(See VOR.)TERRAIN AWARENESS WARNING SYSTEM (TAWS). An on.board, terrain proximity alerting PCG T.2 system providing the aircrew ‘Low Altitude warnings’ to allow immediate pilot action. TERRAIN FOLLOWING. The flight of a military aircraft maintaining a constant AGL altitude above the terrain or the highest obstruction. The altitude of the aircraft will constantly change with the varying terrain and/or obstruction. TETRAHEDRON. A device normally located on uncontrolled airports and used as a landing direction indicator. The small end of a tetrahedron points in the direction of landing. At controlled airports, the tetrahedron, if installed, should be disregarded because tower instructions supersede the indicator. (See SEGMENTED CIRCLE.)(Refer to AIM.)TF. (See TERRAIN FOLLOWING.)THAT IS CORRECT. The understanding you have is right. 360 OVERHEAD. (See OVERHEAD MANEUVER.)THRESHOLD. The beginning of that portion of the runway usable for landing. (See AIRPORT LIGHTING.)(See DISPLACED THRESHOLD.)THRESHOLD CROSSING HEIGHT. The theoreti-cal height above the runway threshold at which the aircraft’s glideslope antenna would be if the aircraft maintains the trajectory established by the mean ILS glideslope or MLS glidepath. (See GLIDESLOPE.)(See THRESHOLD.)THRESHOLD LIGHTS. (See AIRPORT LIGHTING.)TIBS. (See TELEPHONE INFORMATION BRIEFING SERVICE.)TIME GROUP. Four digits representing the hour and minutes from the Coordinated Universal Time (UTC) clock. FAA uses UTC for all operations. The term “ZULU” may be used to denote UTC. The word “local” or the time zone equivalent shall be used to denote local when local time is given during radio and telephone communications. When written, a time Pilot/Controller Glossary zone designator is used to indicate local time; e.g. “0205M” (Mountain). The local time may be based on the 24-hour clock system. The day begins at 0000 and ends at 2359. TIS.B. (See TRAFFIC INFORMATION SERVICE.BROADCAST.)TMA. (See TRAFFIC MANAGEMENT ADVISOR.)TMPA. (See TRAFFIC MANAGEMENT PROGRAM ALERT.)TMU. (See TRAFFIC MANAGEMENT UNIT.)TODA [ICAO]. (See ICAO Term TAKE-OFF DISTANCE AVAILABLE.)TOI. (See TRACK OF INTEREST.)TORA [ICAO]. (See ICAO Term TAKE-OFF RUN AVAILABLE.)TORCHING. The burning of fuel at the end of an exhaust pipe or stack of a reciprocating aircraft engine, the result of an excessive richness in the fuel air mixture. TOTAL ESTIMATED ELAPSED TIME [ICAO]. For IFR flights, the estimated time required from take-off to arrive over that designated point, defined by reference to navigation aids, from which it is intended that an instrument approach procedure will be commenced, or, if no navigation aid is associated with the destination aerodrome, to arrive over the destination aerodrome. For VFR flights, the estimated time required from take-off to arrive over the destination aerodrome. (See ICAO term ESTIMATED ELAPSED TIME.)TOUCH-AND-GO. An operation by an aircraft that lands and departs on a runway without stopping or exiting the runway. TOUCH-AND-GO LANDING. (See TOUCH-AND-GO.)TOUCHDOWN. a. The point at which an aircraft first makes contact with the landing surface. PCG T.3 b. Concerning a precision radar approach (PAR), it is the point where the glide path intercepts the landing surface. (See ICAO term TOUCHDOWN.)TOUCHDOWN [ICAO]. The point where the nominal glide path intercepts the runway. Note: Touchdown as defined above is only a datum and is not necessarily the actual point at which the aircraft will touch the runway. TOUCHDOWN RVR. (See VISIBILITY.)TOUCHDOWN ZONE. The first 3,000 feet of the runway beginning at the threshold. The area is used for determination of Touchdown Zone Elevation in the development of straight-in landing minimums for instrument approaches. (See ICAO term TOUCHDOWN ZONE.)TOUCHDOWN ZONE [ICAO]. The portion of a runway, beyond the threshold, where it is intended landing aircraft first contact the runway. TOUCHDOWN ZONE ELEVATION. The highest elevation in the first 3,000 feet of the landing surface. TDZE is indicated on the instrument approach procedure chart when straight-in landing minimums are authorized. (See TOUCHDOWN ZONE.)TOUCHDOWN ZONE LIGHTING. (See AIRPORT LIGHTING.)TOWER. A terminal facility that uses air/ground communications, visual signaling, and other devices to provide ATC services to aircraft operating in the vicinity of an airport or on the movement area. Authorizes aircraft to land or takeoff at the airport controlled by the tower or to transit the Class D airspace area regardless of flight plan or weather conditions (IFR or VFR). A tower may also provide approach control services (radar or nonradar). |
