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NATIONAL AIRSPACE SYSTEM (NAS) The common network of US airspace; air navigation facilities, equipment and services, airports or landing areas; aeronautical charts, information and ... . U' a/ z2 a$ E K) l1 N1 a
NATO North Atlantic : U; R9 ?* Z) ~3 k' _, P
NATS National Air Traffic Service (UK)
+ _8 e+ y- B* V9 C( D# gNATURAL FREQUENCY Standard engineering term See Also: second-order filter; Symbols: omega sub n; Typical Units: rad/s, Hz; Dimensions: 1/Time;
; u1 q8 j+ w- v( ^ r7 @# PNAUTICAL MILE Measurement of distance. Equals 1.15 statute miles. " ]) ]5 ^" x9 |: q
NAV Navigation Receivers
! N+ q+ v4 ~" l% uNAV/COM Navigation and communication radios combined in a single unit. 6 q& g! l6 ~6 J3 O8 k9 \
NAVAID Navigation Aid (Ground Radio Station for Navigation) * m. G. u2 }, m* u8 a! @! z
NAVIGABLE AIRSPACE airspace at and above the minimum flight altitudes prescribed by or under this chapter, including airspace needed for safe takeoff and landing ; J0 C9 i) b6 L' T) u0 X9 `
NAVIGATION A system, usually software, in which the primary purpose is to generate position relative to a coordinate frame, usually fixed earth frame, such as la...
6 y$ [1 V6 [) U& F% {. q7 nNAVIGATION AID A device or process to help with navigation, such as a VOR station or a position update; ; Y2 I3 x# Q. Y( x; t
NAVIGATION REFERENCE POINT (NRP) A point, usually fixed in earth coordinates but possibly moving; Also, a basic guidance mode, providing lateral guidance to an NRP, either by course o...
7 V3 \6 | O: {* Q" D$ X' a+ U) eNAXOS (FuG 227) German ground radar which produced fixes on H2S. 4 x/ |4 F# @* C# X7 _; B7 Z
NAXOS 2 Airborne version of NAXOS. ; j) x! S( ^! C m9 w% S: Y' g
NBAA IFR FUEL RESERVES Fuel for go-around at destination airport ( x$ r6 _& o" H: D/ {3 K4 j2 Z* W
NDB Navigation 8 z/ A+ y7 [1 c: l
NEAN North European ADS-B Network
+ K3 e, i' Z4 {( s9 q7 z% n# LNEAR MIDAIR COLLISION (NMAC) An incident associated with the operation of an aircraft in which the possibility of a collision occurs as a result of proximity of less than 500 feet...
, r' v2 A# _/ F7 V. ENEEDLE VALVE This is used to tune the fuel to air mixture on the engine carburetor. On most engines, the needle is turned clockwise to lean the mixture, and counte... ' o% a, i0 h ~$ q
NELS Northwest Europe Loran Steering Committee
: z# m( z q3 ~+ R. Y* VNEPTUN (FuG 216-217-218) German warning device fro attack from the rear or alternatively, a night-fighter search radar. ' A( Z) { g# l8 s/ I. {! P+ r, Q
NICAD (OR NICD) Nickel Cadmium battery. Rechargeable batteries which are typically used as power for radio transmitters and receivers.
7 X( S7 h9 v1 ~+ c1 K% eNICKELLING Codename for leaflet dropping # E3 f7 {" j% l* s- K: a( Y
NIGHT the time between the end of evening civil twilight and the beginning of morning civil twilight, as published in the American Air Almanac, converted to...
) f* l( M4 T1 }* TNIL Nothing, no information O. L0 z4 N0 Q+ n W4 T0 M/ \
NIMBY "Not In My Back-Yard"-Syndrome: "We need an airport but not here" . K0 x/ f+ M X3 m ^- t% ]+ e; E
NITRO Abbreviation for nitro methane. The addition of nitro methane in fuel provides more power, and a smoother idle, thus making the engine easier to tune.... 3 E6 ^% R9 w/ J
NITRO METHANE The addition of nitro methane in fuel provides more power, and a smoother idle, thus making the engine easier to tune. The nitro also makes an engine ...
2 F9 { b0 o3 p$ F- B" \NM Nautical Miles. One nautical mile = 1.15 statute miles = 6,080 feet.
( _* T/ t! X% x! ^( a0 M0 MNM, NMI Nautical Mile (1.852 km)
/ w9 b4 v2 L/ q) N" f' u8 m0 [( ]% ]NMS Navigation management system. , [! V% ]& v' U
NMU Navigation management unit.
/ S( J& b6 {4 e9 VNOISE Part of received data that is undesired, consisting of random sinusoidal terms added to a signal; Compare: offset, signal; |
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