1Dk4eXg

NON
NON Unmodulated NDB, transmitting no information.
non-co-operative scorer One whose ammunition is not
modified, or does not need modification, for scoring
purposes (ASCC).
non-co-operative target One without emissions,
transponder or enhancement device.
non-destructive testing Methods of testing structures for
integrity, esp. absence of manufacturing flaws or cracks,
that do not impair serviceability or future life.
non-developmental item For practical purposes = off the
shelf.
non-differential spoilers Main feature is that in airbrake
mode all spoilers remain extended even in demand for roll
(see spoilers).
non-directional beacon ADF ground station sending in
190–550 kHz range with keyed identification carrier.
non-discolosure agreement A legal document, signed by
both [orall] parties, confirming that particular information,
such as details of a bid, will not be transmitted to any
non-signatory.
non-effective sortie Aircraft which for whatever reason
fails to accomplish mission (DoD).
non-ferrous Metals and alloys not based on iron; term
usually also excludes aluminium alloys and generally
means coppers and brasses.
non-fluff Lint-free.
non-flying prototype Essentially mock-up built to full
flight standard but, for whatever reason, not cleared or
intended for flight.
non-frangible wheel Various techniques applied to
design and fabrication of turbine disc to preclude possibility
of rupture in overspeed or asymmetric condition.
non-galvanic corrosion That due to causes other than
formation of elecric cells; two important examples are
fretting and microbiological.
non-handling pilot Member of civil flight crew not actually
flying the aircraft.
non-holding side That on left side of holding course
inbound towards holding fix.
non-induced drag Parasite drag.
non-instrument runway No ILS.
non-interchangeable socket Otherwise standard multipin
or other sockets on device which ensure correct
attachment of several connectors.
non-kinetic-energy weapons Lasers, microwaves, radio
and similar wave systems.
non-landing section That length of runway from original
threshold to displaced threshold.
non-operating active aircraft Allowance, usually 10%,
above UE level to make up for IRAN, modifications and
heavy maintenance (USAF).
NONP Non-precision approach runway.
non-precision approach Without electronic glideslope.
non-precision instrument runway Without ILS.
non-program aircraft Those in inventory other than
active or reserve, eg experimental or withdrawn (DoD).
non-radar Self-explanatory, but can mean pilot is not
using radar provided.
non-return-flow tunnel Simple wind tunnel open at both
ends.
non-rigid airship Without rigid skeleton or stressbearing
covering around lifting cells which are stabilized
by internal pressure.
normal mode
non-sked Non-scheduled, ie not operating to a timetable
(colloq.).
non-structural Other than primary or secondary structure;
physical breakage of part would not imperil
continued flight.
non-traffic stop Stop by transport aircraft in public
service planned in advance for reasons other than to pick
up or set down.
non-volatile Permanent memory.
NOO Naval Oceanographic Office.
Nopac North Pacific.
NOPR Notice of proposed rulemaking (FAA).
NOPT, NoPT No procedure turn required (FAA).
Nora Not only radar, for post-2006 Gripen.
Norad North American Air Defense Command
(US/Canada, ratified 1958).
Norcote Spacecraft coatings based on phenolic resin
and powdered cork.
Norda, NORDA No radio; also NORDO.
Norden sight Complex but highly accurate optical
bombsight for high-altitude level bombing (US, 1941–49).
Norden gear Patented carrier-landing energyabsorption
system.
Nordo, NORDO Alternative to NORDA, common in
UK.
NOREU Northern Europe.
Norfab Fire-blocking aluminised material incorporating
polyamide binder and glassfibre.
NOR gate Logic circuit usable as either AND or OR,
depending on logic levels chosen to represent 0 or 1.
NORM, Norm Not operationally ready, because need
for maintenance.
normal 1 Perpendicular to.
2 Maximum continuous, eg engine rating (R).
normal acceleration Acceleration in vertical plane relative
to aircraft, along OZ axis (eg as result of rotation
about OY axis).
normal axis Vertical axis (note: may not be vertical but
must be at 90° to longitudinal axis in plane of symmetry);
also called OZ axis. Positive direction is downward.
normal flight Includes all manoeuvres except aerobatics
or air combat.
normal force That measured on body in fluid flow at 90°
to free-stream direction, symbol Z (rarely N).
normal force coefficient Dimensionless coefficient C Z
derived from Z; also written C L cos α + C D sin α where C L
and C D are lift/drag coefficients and α is angle of attack.
normal glide That at which glide ratio is maximum.
normal gross weight Usually same as MTOW; excluding
all overload, emergency or alternate gross weights.
normal horsepower Not defined but generally same as
rated hp.
normalizing Stress-relieving heat treatment usually
comprising heating to above critical temperature followed
by cooling in atmosphere.
normal landing For tailwheel aeroplane, three-point
landing.
normal load factor That measured along normal axis
[the usual meaning].
normal loop Loop, as distinct from inverted loop,
starting and finishing in straight and level flight in upright
attitude.
normally aspirated Unsupercharged.
normal mode Free vibration of undamped system.
451