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Gatip
3 Imposing mechanical stop on piston engine throttle
below selected pressure altitude.
Gatip Global air-traffic interoperability project (FAA /
Eurocontrol).
gatling Originally (1861) Gatling, automatic rapid-fire
gun having a rotating assembly of several parallel barrels
brought in succession in front of a single breech.
GATM Global air-traffic management.
Gator 1 GPS ability to overcome resistance.
2 Ground/air task-oriented radar.
Gatorizing Isothermal forging process for high-nickel
turbine rotor blades and other super-alloys.
GATR Ground/air transmit/receive.
GATS GPS-aided targeting system; /GAM adds GPSaided
munition[s].
GATSS Global air-transportation systems and services
(R, CIS).
GATT 1 Gate-assisted turnoff thyristor.
2 General agreement on tariffs and trade.
GAU Gun, aircraft unit.
GAUC GA Users Committee (LGK, LHR).
gauge (US gage) 1 Any pressure-measuring instrument.
2 Hand comparator for GO/NO GO check on an exact
dimension or screwthread.
3 Standard measures of sheet and wire thickness.
gauged fuel Sum of fuel-gauge readings; fuel state,
including unusable.
gauge pressure Indicator reading showing amount by
which system pressure exceeds atmospheric.
gauss Non-SI unit of magnetic induction (flux density),
= 10 -4 T.
GAvA Guild of Aviation Artists [office, Farmborough
GU14 6TF] (UK).
GAVC Ground/air visual code (FAA).
GAVRS Gyrocompassing attitude and velocity
reference system.
GAWG General Aviation Working Group (Natmac).
GAZ State aviation factory [almost 1,000] (USSR).
GB 1 Gain/bandwidth.
2 Groupe de Bombardement (F).
3 Aircraft category, glide bomb (USAAF 1942–47).
4 Lethal nerve gas first produced as Sarin (G 1938) and
later by US.
Gb Gigabyte[s].
G B In flight-control augmentation, a bending-mode
filter.
g.b. Grid bias.
GBA Groupe de Bombardement d’Assaut (F).
GBAD Ground-based air defence; BC adds bridging
capability, WS adds weapon system[s].
GBAS Ground-based augmentation system, for precision
approach.
GBCS Ground-based common sensors.
GBD Greener by design (UK).
GBDM Ground-based data management; S adds
system.
GBI Ground-based interceptor[s].
GBIB Ground-based integrity broadcast.
Gbits/s Gigabits (10 9 ) per second, not to be confused
with Gb.
GBL 1 Ground-based laboratory.
2 Ground-based laser.
3 Government bill of lading.
GBMD Global ballistic-missile defence.
GD
G/BMI Graphite/bismaleimide composite.
GBM levels Gough, Beard and McEvoy pioneered
investigation of upper limits of force a pilot could be
expected to exert on particular flight-control inputs
(NACA).
GBP Great Britain pound[s] Sterling.
GBR Ground-based radar; P adds prototype (US
NMD).
GBRAS Ground-based regional augmentation system.
GBS 1 Global broadcast service.
2 Ground-based software; T adds tool.
3 Ground-based sensor[s].
GBTA Guild of Business Travel Agents [1967–, office,
London] (UK).
GBTS Ground-based training system.
Gbyte Gb.
GBU Glide-bomb unit.
GC 1 Groupe de Chasse (fighter wing, F).
2 Great circle.
3 Goggles-compatible (NVG).
4 Gyrocompass.
5 Ground control.
GCA 1 Ground-controlled approach.
2 General controlled airspace, from 1990 called Class E
(FAA).
GCAA General Civil Aviation Authority (UAE).
GCAM Ground collision-avoidance module.
GCAS, G-cas Ground collision-avoidance system.
GCB 1 Generator circuit-breaker, or control breaker.
2 Gun-control box (helicopter).
3 See next.
GC brg Great-circle bearing.
GCC 1 Graduated combat capability.
2 Goggles- (ie, NVG) compatible cockpit.
3 Gulf Cooperation Council (Inmarsat).
4 Global climate change; I adds initiative[s].
5 Ground-cluster controller (Acars).
GCCS Global command and control system (DoD).
GCF Ground-conditioning fan.
GCHQ Government Communications HQ (Cheltenham,
UK).
GCI Ground-controlled interception.
GC/IMS Gas chromatography/ion mobility spectrometry.
gcm -3 SI unit of density.
GCMS Gas-chromatograph mass spectrometer.
GCOS Global climate observing system.
GCP General conditions of purchase.
GCR 1 Generator-control relay.
2 Ground-clutter reduction.
CGS 1 Ground-control station[s].
2 Ground-clutter suppression.
Gc/s Gigacycles = GHz.
GCSC Great-circle steering cue.
GCSS Global combat-support system (USAF).
GCT 1 Government competitive test.
2 Greenwich Civil Time.
GCU 1 Generator control [and protection] unit.
2 Ground control unit [UAV].
3 Guidance control unit.
GCV Ground check vehicle [navaids].
GD 1 Lethal nerve gas first produced (G, 1940) as Sarin
(also GB).
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