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Mg
Ω
3 Motor glider.
Mg 1 Magnesium.
2 Megagramme, ie 1,000 kg or 1 tonne.
mg 1 Milligram[me]s.
2 Machine gun.
MGA 1 Middle gimbal angle.
2 Ministry of civil aviation (R).
MGARJS Mobile ground/air radar jamming system.
MGCS 1 Missile guidance and control system.
2 Mobile ground control station.
3 Meteosat ground computer system.
MGD Magnetogasdynamic.
MGDA Maintenance Group Defence Agency (UK,
now part of DARA).
MGF Metallized glass-fibre (chaff).
MgF 2 Magnesium fluoride (IR seeker domes).
MGGB Modular guided glide bomb.
MGIR Motor glider instrument, or instructor, rating.
MGM Former US code, mobile-launcher surfaceattack
guided missile.
MGOS Metal glass oxide silicon.
MGR Miniature GPS receiver.
MGRS Military grid-reference system.
MGS 1 Mobile ground station (RPV).
2 Minimum groundspeed system.
3 Mars global surveyor.
4 Main-gear steering [CU adds control unit].
5 Microgravity science.
6 MoD guard services.
MGSM Medium ground station module.
MGSS Maintenance and ground-support system.
MGT 1 Motor gas temperature (solid rocket).
2 Module ground terminal.
MGTOW See MTOW.
MGTP Main-gear touchdown point.
MGTR Minimum ground turning radius.
MG2D MGaero two-dimensional.
MGU Midcourse guidance unit.
MGVF Ministry of Civil Aviation (USSR, R).
MGW Maximum gross weight (MTOW and MRW are
more explicit).
MH 1 NDB, less than 50 W.
2 Magnetic heading.
M H , M h Turning moment [drive torque] at hub of helicopter
main rotor.
mH Millihenry.
MHA 1 Minimum holding altitude.
2 Maintenance hazard analysis.
MHD 1 Magnetohydrodynamic(s).
2 Magnetic hard drive.
MHDD Multifunction head-down display.
MHDF Co-located MF and HF D/F (ICAO).
M/HFE Maintainability and human factors engineering.
MHH Musée Historique de l’Hydraviation [F-40600
Biscarosse] (F).
MHI Missile [or manual] hit indicator.
mho Unit of conductance, reciprocal ohm, symbol ,
SI unit siemens.
MHP Main hydraulic pump.
mhp Muzzle horsepower, measure of automatic
weapon.
MHR Monopropellant hydrazine rocket.
MHRS Magnetic heading-reference system.
micro-adaptive flow control
MHS 1 Message-handling system.
2 Masint hyperspectral study.
3 Microwave humidity sounder
MHV Miniature homing vehicle.
MHVDF Co-located MF, HF and VHF/DF (ICAO).
MHWS Mean high water spring tides.
MHz Megahertz [10 6 H z ].
MI 1 Model improvement.
2 Medium intensity.
3 Miles (not recommended).
4 Military intelligence.
5 Shallow (ICAO).
6 Maritime interdiction.
mi Statute mile[s].
m.i., M/I Minimum impulse.
MIA 1 Missing in action.
2 Minimum IFR altitude.
Miacs Multisensor integrated airborne command
system.
MIAG Modular integrated avionics group (UAV).
Mials Medium-intensity approach-light system.
Miami Microwave ice-accretion measurement instrument.
MIAT Malayan Institute of Aviation Technology
[1997–].
MIATS Memory interrogation and test system.
MIB 1 Minimum-impulse bit (rocket).
2 Management information base.
3 Mishap Investigation Board (NASA).
4 Military Intelligence Battalion; (AE) adds aerial
exploitation (USA).
MIC 1 Mineral insulated cable.
2 Microwave integrated circuit.
3 Multinational Interoperability Council (Int.).
M IC Pitching moment due to inertial coupling.
mic microphone.
Mica 1 Missile d’interception et de combat aérien (F).
2 Met [meteorological] improvements for controller
aids (Euret).
Micad Multipurpose integrated chemical-agent alarm
device.
Micap Mission-capable.
Micarta Trade name for phenolic insulator and smallpart
material made from resin-impregnated cloth.
Micas Miniature integrated camera spectrometer, or
spectroscopy.
Mice Microwave integrated checkout equipment.
mice Small inserts fitted by hand to tailor cross-section
area of fluid flow path, esp. gas-turbine jetpipe nozzle.
Michigan height That at which an air-dropped store,
esp. nuclear, is activated by its radar altimeter.
Mickey H 2 X (colloq.).
Mickey Finn Major exercises involving numerous NWcarrying
bombers from dispersed bases (RAF, 1960s).
MICNS Modular integrated communications and navigation
subsystem (Sotas).
MICOM, Micom Missile Command (USA).
Micos Multifunctional IR coherent optical scanner.
micrad Microwave radiometer.
micro 1 Prefix one-millionth, × 10 –6 , symbol µ.
2 Abb., microlight.
micro-adaptive flow control High-frequency alternate
blowing and sucking generated electromagnetically to
preserve attachment of airflow to surface.
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