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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 ...
$ m/ W0 P' A- A$ QNATO North Atlantic
. ]" q; Y2 h/ Y- ]2 [' T% NNATS National Air Traffic Service (UK) & ^4 j+ d5 A: t: q T4 B: \
NATURAL FREQUENCY Standard engineering term See Also: second-order filter; Symbols: omega sub n; Typical Units: rad/s, Hz; Dimensions: 1/Time; " f1 j- I0 Z t# t9 x
NAUTICAL MILE Measurement of distance. Equals 1.15 statute miles. , F7 N; e. z9 B
NAV Navigation Receivers ( j. E8 |! r% r
NAV/COM Navigation and communication radios combined in a single unit. ! A6 ^9 b" Q( @3 p T1 t' g
NAVAID Navigation Aid (Ground Radio Station for Navigation) + b0 `0 W8 D @" k, o1 [: j A, h
NAVIGABLE AIRSPACE airspace at and above the minimum flight altitudes prescribed by or under this chapter, including airspace needed for safe takeoff and landing % U) S2 s/ D' p2 O% y+ K6 ]* x
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...
% m1 v8 O0 f, m# z& FNAVIGATION AID A device or process to help with navigation, such as a VOR station or a position update; z/ c' |+ E- r$ E2 ^, v3 e
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... 3 Z6 T( a, H* d1 y
NAXOS (FuG 227) German ground radar which produced fixes on H2S.
8 C9 [/ X6 h, ~6 JNAXOS 2 Airborne version of NAXOS.
2 B) u% n, I4 X" _5 {- o" h/ tNBAA IFR FUEL RESERVES Fuel for go-around at destination airport
* H% c$ ?- I5 s, UNDB Navigation 3 Q. v7 d/ W6 k6 R7 n! B+ H
NEAN North European ADS-B Network 0 v. H* |7 K* n
NEAR 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...
! i' T' ?/ p, K7 ]2 c/ ~: n: m0 Y2 KNEEDLE 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...
- [8 D6 V& s+ |" v+ ]# ~NELS Northwest Europe Loran Steering Committee
. Q* }# c/ u, y9 pNEPTUN (FuG 216-217-218) German warning device fro attack from the rear or alternatively, a night-fighter search radar.
. E! z1 V" A/ |: [NICAD (OR NICD) Nickel Cadmium battery. Rechargeable batteries which are typically used as power for radio transmitters and receivers.
: h9 x0 L: K( M5 c( b. VNICKELLING Codename for leaflet dropping
& C9 t" T* J5 n+ ^1 r+ XNIGHT 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... 1 X* p* z4 ^1 X2 y0 M: i
NIL Nothing, no information
2 U: d$ u( |! W+ x& xNIMBY "Not In My Back-Yard"-Syndrome: "We need an airport but not here" 4 ~9 {/ \: C4 d2 I) Q: N; B
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....
; l7 E. O) ], R* v6 G2 ]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 ... ) ?, R9 L: H( J% F" N
NM Nautical Miles. One nautical mile = 1.15 statute miles = 6,080 feet. : o! ~2 Z9 m1 y0 ?6 |- I: a
NM, NMI Nautical Mile (1.852 km)
' d5 J' ~, l, i( h1 yNMS Navigation management system.
! ?5 x; o. `7 q- j* tNMU Navigation management unit.
9 { D. \2 p3 P' Z. J# UNOISE Part of received data that is undesired, consisting of random sinusoidal terms added to a signal; Compare: offset, signal; |
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