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TVOR very high frequency terminal omni range station.
9 Q( U) y* n; @3 g1 \+ J: {7 }TWR Tower (Control Tower) ( V& j7 _4 }6 x3 m" [. V
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... 9 @, W/ }- j, d1 d6 J# z
U Airspace Euro control project Class U (unknown traffic)
; g) C& D6 c. FU/S unserviceable
) O q2 S8 I$ P3 [9 k, jU/V ADF UHF/VHF Automatic Direction Finding
7 k& @7 J* x ~# O$ T4 G. bUAT Universal Access Transceiver 6 E; F$ ^+ C6 e3 b" }# g
UAV Unmanned (or Uninhabited) Aeronautical (or Aerial) Vehicle + {6 a E7 n' }, E, j, Q8 b
UFN Until Further Notice ( e8 ^6 K1 g; {7 x# v: C- A% {- x
UFO Unidentified Flying Object ; ~- p- G8 O9 E9 H$ c, m' j) |
UHF Ultra High Frequencies (300 MHz-30 GHz) $ k! ] L/ F- L7 {
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;
1 b+ Y/ K9 y! s: a5 J1 cUL Ultra light, Ultra-l©ger motoris©
. j# I+ b* u4 M) @! mULM Ultra light, Ultra-l©ger motoris© : s* K! Q [$ h b3 y' {: l
ULTRALIGHT VEHICLE An aeronautical vehicle operated for sport or recreational purposes which does not require FAA registration, an airworthiness certificate, nor pilot c... 7 L5 p+ i, e4 w! u: v% }8 X) Y3 H% l
UMAS Unmanaged Air Space (Euro control Definition) 9 T4 J; D' P# O' v( i7 Z5 K
UNDER 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...
7 p3 ?( A% u) P+ S6 v: ^. sUNDERCARRIAGE STRUT A part of an airplane`s structure, designed to resist distortion, which supports the landing gear.
& b' v( [$ w/ K" u# g; [4 TUNIT 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 ...
( m v* e2 u8 Q: q) s( w: ~8 @UNIT 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...
- W( c& s$ @: T+ \+ @+ WUNIT LESS No units, such as ratios; a quantity with standard units of 1; a quantity with primary units of 1; Synonyms: dimensionless;
! G6 K2 \+ {* a2 n3 V, y$ g. \9 LUNIT 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... # j5 z6 M1 Y% @- v
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...
9 P3 V, d" b( z; FUNITED 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...
9 \" _6 G3 \ g, s4 |UNITED STATES AIR CARRIER a citizen of the United States who undertakes directly by lease, or other arrangement, to engage in air transportation. $ r" A3 c$ [' r b$ Z2 b/ k
UNITS A standard quantity, such as ft or mi; Synonyms: dimension;
" Z; s( C. V8 @* [4 ?- }* E' ?9 x: ]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;
- f1 b- [1 r3 y% l1 }, A2 U {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...
) ^# Z/ v4 j/ ^) [, D; k) tUPKEEP Codename for Barnes Wallis` bouncing bomb used in the Dambusters` raid 4 u2 e4 y0 n7 p' M) E A
URB User Relations Bureau (CFMU) 3 N+ f. T& L" D5 l+ \
USABLE FUEL (LBS) Usable fuel (gallons) x 6.7 lbs/gallon
1 y" Z L( c& e7 _+ @USAF US Air Force ) V1 v$ B6 m2 C. @
USEFUL LOAD Maximum Ramp Weight - (minus) Basic Operating Weight / F& o0 T, J! j, z! p
USG (AL) US-Gallon (3.78 Liter) & S3 y6 d7 N- ?. @* P6 m0 z
UTC Universal Coordinated Time. , n. T/ z" f* L4 V( c- w
UTM Universal Transverse Mercator
8 N: ~4 j" L, d' {V Universal Time Coordinated |
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