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TVOR very high frequency terminal omni range station. , q# T I* ?: @( Q1 D; U/ n
TWR Tower (Control Tower) \0 H$ f; C; c2 I# ~, d
TYPE (1) As used with respect to the certification, ratings, privileges, and limitations of airmen, means a specific make and basic model of aircraft, incl...
: k& h! B' U% h4 g, }U Airspace Euro control project Class U (unknown traffic) , @0 ]* y0 ^8 f8 [5 L. d! r4 q! K
U/S unserviceable : G! m ]7 f; h9 T5 X* e# O% U
U/V ADF UHF/VHF Automatic Direction Finding ! i. J' E: t0 I- \% a+ A- ~
UAT Universal Access Transceiver # m7 I( E6 B* ]5 G' }; p
UAV Unmanned (or Uninhabited) Aeronautical (or Aerial) Vehicle
$ W# @$ p/ N AUFN Until Further Notice
& o B% e& t9 K5 TUFO Unidentified Flying Object
5 X. B9 L+ Z( S5 `1 ] N& l; vUHF Ultra High Frequencies (300 MHz-30 GHz) + R4 {$ H+ C( }& Q' d7 B, Q
UHF/VHF AUTOMATIC DIRECTIONFINDING (U/V ADF) An Automatic Direction Finder that determines relative bearing to a transmitter to which it is tuned, in either the UHF band or VHF band; , c5 n; L( |9 D- @6 E! P E+ U
UL Ultra light, Ultra-l©ger motoris© / D9 ?! m4 Z8 `" i
ULM Ultra light, Ultra-l©ger motoris©
) B `+ ]$ g9 y0 y8 |& z; CULTRALIGHT VEHICLE An aeronautical vehicle operated for sport or recreational purposes which does not require FAA registration, an airworthiness certificate, nor pilot c...
3 Z1 z( Q8 K+ m% P* {UMAS Unmanaged Air Space (Euro control Definition)
9 `2 O, |7 g8 U- T, a6 o. lUNDER CAMBER This means that the lower surface of the wing has a hollow curve when observed from front to back. A thin wing with a high camber will be under camber...
: m% ^1 ?9 f4 n% F5 ?# m y" o& f2 _UNDERCARRIAGE STRUT A part of an airplane`s structure, designed to resist distortion, which supports the landing gear.
$ q6 f; ?& `9 v: Y/ }! xUNIT FUNCTIONS A collection of functions used as standard test cases in control systems engineering; The primary unit functions of interest in avionics are the unit ...
. L2 I) u/ m: k/ ZUNIT IMPULSE A function used as a standard test case in control systems engineering; a spike of "area" one at time t = 0; Synonyms: impulse; See Also: unit functio...
* T* p5 X+ y \. {UNIT LESS No units, such as ratios; a quantity with standard units of 1; a quantity with primary units of 1; Synonyms: dimensionless;
% @0 {$ U5 f9 A; j7 C, s/ fUNIT RAMP A function used as a standard test case in control systems engineering; a line of slope 1 starting at zero at time t = 0; Synonyms: ramp; See Also: un... 5 M7 B8 e/ R: a9 S: f( ~
UNIT STEP A function used as a standard test case in control systems engineering; a step from zero to one at time t = 0; Synonyms: step; See Also: unit function...
( N, g9 r) |, l& w! A! I6 kUNITED STATES in a geographical sense, means (1) the States, the District of Columbia, Puerto Rico, and the possessions, including the territorial waters, and (2) t...
- J; x+ I5 E0 \5 L @UNITED STATES AIR CARRIER a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation.
% n1 D0 I5 m. o5 R* jUNITS A standard quantity, such as ft or mi; Synonyms: dimension; 6 E# V' l3 r( V& [( |& G9 t
UNIVERSAL TRANSVERSE MERCATOR(UTM) A system of fixed earth coordinates, sometimes used instead of latitude and longitude, accurate relative to others close by, such as ground troops; " P/ B* O: V' O! a! z/ h4 T; q
UPDATE A process by which position is reset with a known better position; updates occur at the data source level or at the physical device level, depending u... x- Q2 T5 _- c) ]9 O
UPKEEP Codename for Barnes Wallis` bouncing bomb used in the Dambusters` raid
5 y+ h! F$ t1 M( h$ E' G- VURB User Relations Bureau (CFMU) , M o- Z& p- j- b
USABLE FUEL (LBS) Usable fuel (gallons) x 6.7 lbs/gallon
4 k2 m$ j& Q* c. S: G( JUSAF US Air Force
* b( @- I9 q4 X4 kUSEFUL LOAD Maximum Ramp Weight - (minus) Basic Operating Weight
8 m: x& J0 z I- c; O9 |USG (AL) US-Gallon (3.78 Liter)
* T# C( Z s% UUTC Universal Coordinated Time. ; ]5 z* J& T. R3 d0 p4 W5 ]4 A
UTM Universal Transverse Mercator 4 G7 F B5 ]; l0 Y8 j0 \8 }
V Universal Time Coordinated |
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