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Glossary of Avionics Terms & Acronyms 航空电子术语和缩写词词典

时间:2011-07-29 09:39来源:蓝天飞行翻译 作者:航空 点击:


TSA  Tail Strike Assembly 
TSE  Total System Error 
TSM  Autothrottle Servo Mount (without Clutch) 
TSO  Technical Standard Order. Every unit built with a TSO 
nameplate must meet TSO requirements. TSO operat-
ing temperature extremes are not the same as the 
manufacturing burn-in limits. 
TTFF  Time To First Fix 
TTL  Transistor - Transistor Logic 
TTR  TCAS II Receiver/Transmitter 
TTS  Time To Station,an indication that displays the 
amount of time for an aircraft to reach a selected 
DME ground station while traveling at a constant 
speed. 
TTY  Teletypewriter 
TURB  Turbulence 
Turbulence  The US National Weather Service defines light turbu-
lence as areas where wind velocity shifts are 0 to 19 
feet per second (0 to 5.79 metres per second) and 
moderate turbulence as wind velocity shifts of 19 to 
35 feet per second (5.79 to 10.67 metres per second). 
TVBC  Turbine Vane and Blade Cooling 
TVC  Turbine Vane Cooling 
TWDL  Two Way Data Link 
TWIP  Terminal Weather Information for Pilots 

TWT Traveling Wave Tube TX Transmit (see XMIT)
U
UART Universal Asynchronous Receiver/Transmitter UAL United Airlines UB Utility Bus UBI Uplink Block Identifier UCS Uniform Chromaticity Scale UD User Data. The N-User data may also be transferred
between peer network members (OSI Model) as required.
UFDR Universal Flight Data Recorder UHF Ultra-High Frequency. The portion of the radio spec-
trum from 300 MHz to 3 GHz. ULB Underwater Locator Beacon ULD Unit Load Device UMT Universal Mount
Unpaired A DME channel without a corresponding VOR or ILS Channel frequency.
Uplink  The radio transmission path upward from the earth to the aircraft.
UPS  Uninterruptible Power System
USAF  United States Air Force
USB  Upper Sideband is the information-carrying band and is the frequency produced by adding the carrier fre-quency and the modulating frequency.
USGIC U.S.GPS Industry Council USTB Unstabilized UTC Universal Coordinated Time UUT Unit Under Test
UV Upper Sideband Voice UW Unique Word
V
V1 Critical engine failure velocity
V2 Takeoff climb velocity
VA Volt-Amperes
VAC Volts AC
VAP Visual Aids Panel
VAPS (1) Virtual Avionics Prototyping System
(2)
Virtual Applications Prototyping System VAU Voltage Averaging Unit VBV Variable Bypass Valve VCCS Voice Communication Council System VCD (1) Voltage Controlled Device

(2)
Variable Capacitance Diode VCO Variable Controlled Oscillator VDC Volts Direct Current VDL VHF Data Link VDOP Vertical Dilution of Precision VDR VHF Data Radio Vertical Speed The rate of change of pressure altitude,usually cali-

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