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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 ... % t7 F! D3 o2 K* L; O+ G" w/ Q( m& p
NATO North Atlantic * l) N3 [$ \6 ~3 S* Z, l R4 H% u. A
NATS National Air Traffic Service (UK) 8 c. s- H8 m, J& x: s
NATURAL FREQUENCY Standard engineering term See Also: second-order filter; Symbols: omega sub n; Typical Units: rad/s, Hz; Dimensions: 1/Time; % S: |4 n% N$ ]" ?/ n5 d$ K
NAUTICAL MILE Measurement of distance. Equals 1.15 statute miles. y9 `" X9 z* B) f: @
NAV Navigation Receivers $ [! ?1 Y$ |2 w8 k) X Z/ }
NAV/COM Navigation and communication radios combined in a single unit.
. E6 M' f$ R c: o5 H7 eNAVAID Navigation Aid (Ground Radio Station for Navigation)
6 m! z' A( M0 d% zNAVIGABLE AIRSPACE airspace at and above the minimum flight altitudes prescribed by or under this chapter, including airspace needed for safe takeoff and landing 6 i) W. H) r" j4 [" }: 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...
* m; U' S3 _9 Q( jNAVIGATION AID A device or process to help with navigation, such as a VOR station or a position update; ' m2 A/ r# D+ X- Z5 g: g6 |- H. d5 a
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...
* S/ ^7 y$ G9 bNAXOS (FuG 227) German ground radar which produced fixes on H2S.
' `; D) a) }' M& c. i; h- TNAXOS 2 Airborne version of NAXOS.
6 i* |# L; \3 S% q8 ~: H; ONBAA IFR FUEL RESERVES Fuel for go-around at destination airport * z- l/ k1 F- d4 E6 e' e1 J& q
NDB Navigation / v9 x% U ?" W: j# d
NEAN North European ADS-B Network 7 \! z8 v5 S X! C+ |# Y
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...
& ]5 g# d* ?: f& |0 I* ?NEEDLE 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... ; t3 I5 g6 H! r
NELS Northwest Europe Loran Steering Committee 9 C- R- X1 G) l7 W% ]
NEPTUN (FuG 216-217-218) German warning device fro attack from the rear or alternatively, a night-fighter search radar. + \- [$ I4 N, d/ d( X! i
NICAD (OR NICD) Nickel Cadmium battery. Rechargeable batteries which are typically used as power for radio transmitters and receivers.
2 w7 H) ^' k2 v( `3 cNICKELLING Codename for leaflet dropping
: \- r3 I% E. k* W" f" F6 N# E( CNIGHT 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...
, {9 O0 ]0 g5 H. h- A8 ENIL Nothing, no information * K5 l! u3 G1 u) [4 w; F
NIMBY "Not In My Back-Yard"-Syndrome: "We need an airport but not here" : K" y. Z* z8 S+ W1 D V. b7 V
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.... ! g" M( h" b7 D& q4 O0 Y
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 ...
1 Z2 v' p$ w7 h7 C3 lNM Nautical Miles. One nautical mile = 1.15 statute miles = 6,080 feet. 6 m# Y8 w- p3 Y
NM, NMI Nautical Mile (1.852 km) - k) A( i" }. o# |4 h* A* m% p0 q5 Z
NMS Navigation management system.
8 s( `8 h0 k: E, H+ kNMU Navigation management unit. : j1 i7 E& G9 b/ @
NOISE Part of received data that is undesired, consisting of random sinusoidal terms added to a signal; Compare: offset, signal; |
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