Difference between revisions of "List of Acronyms and Abbreviations"

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* GL - [[Delta-glider]]
 
* GL - [[Delta-glider]]
 
* GS - [[ground speed]]
 
* GS - [[ground speed]]
 +
* GMT - Greenwich Mean Time. Earth's mean time standard.
 
* H - Horizon
 
* H - Horizon
 
* HUD - [[heads up display]]
 
* HUD - [[heads up display]]
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* LPe - longitude of [[periapsis]]
 
* LPe - longitude of [[periapsis]]
 
* m - metre
 
* m - metre
* M - mass or [[mach]] number
+
* M - Mega (SI prefix). Occasionally mass or [[mach]] number
 
* MECO - Main Engine Cutoff
 
* MECO - Main Engine Cutoff
 
* [[MFD]] - multifunction display
 
* [[MFD]] - multifunction display
* Mir - the Russian space station [[Mir]], commonly assumed to be an acronym, but not.
 
 
* MJD - [[modified julian date]]
 
* MJD - [[modified julian date]]
 
* MMU - Manned Maneuvering Unit
 
* MMU - Manned Maneuvering Unit
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* MnL - [[mean longitude]]
 
* MnL - [[mean longitude]]
 
* MSx - Mission Specialist x
 
* MSx - Mission Specialist x
* m/s - meters per second, a common [[measurement]] of [[velocity]]
+
* m/s - meters per second, the SI base unit of [[velocity]]
 
* NAV - navigation or [[navigation aid]]
 
* NAV - navigation or [[navigation aid]]
 
* OAT - outside air temperature
 
* OAT - outside air temperature
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* OBS - [[omni bearing selector]]
 
* OBS - [[omni bearing selector]]
 
* OBT - [[orbit]], as seen on the [[orbit MFD]]
 
* OBT - [[orbit]], as seen on the [[orbit MFD]]
* OMS - orbital maneuvering system, part of the [[space shuttle]]
+
* OMS - orbital maneuvering system, the 'main engines' of the orbital [[space shuttle]]
 
* OS - [[orbital speed]]
 
* OS - [[orbital speed]]
* P - radius vector, as seen on the [[align orbital plane MFD]]
+
* P - position (sometimes radius) vector, as seen on the [[align orbital plane MFD]]
 
* p0 - atmospheric pressure at sea level
 
* p0 - atmospheric pressure at sea level
* PAPI - Precision Approach Path Indicators
+
* PAPI - Precision Approach Path Indicators, lit runway centreline.
 
* PB -  
 
* PB -  
 
* PeA - [[periapsis]] altitude
 
* PeA - [[periapsis]] altitude
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* R - mean radius or specific gas constant
 
* R - mean radius or specific gas constant
 
* r0 - atmospheric density at sea level
 
* r0 - atmospheric density at sea level
* Rad - radial distance
+
* Rad - radial distance (not to be confused with angular unit ''radians'')
 
* RAnm - [[true anomaly]] of reference axis, as seen on the [[synchronise orbit MFD]]
 
* RAnm - [[true anomaly]] of reference axis, as seen on the [[synchronise orbit MFD]]
 
* Rate - rate of change, as seen on the [[align orbital plane MFD]]
 
* Rate - rate of change, as seen on the [[align orbital plane MFD]]
* RCS - [[reaction control system]]
+
* RCS - [[reaction control system]], spacebourne orientation rocket system.
 
* RInc - [[relative inclination]], as seen on the [[align orbital plane MFD]]
 
* RInc - [[relative inclination]], as seen on the [[align orbital plane MFD]]
 
* RVel - relative [[velocity]]
 
* RVel - relative [[velocity]]
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* Tth - predicted thrust time, as seen on the [[align orbital plane MFD]]
 
* Tth - predicted thrust time, as seen on the [[align orbital plane MFD]]
 
* TVEL - tangential [[velocity]]
 
* TVEL - tangential [[velocity]]
* UT - universal time
+
* UT - universal time, GMT. Not to be confused with UTC (Universial Time Co-ordinated). The latter is based on atomic clocks not astronomy, hence the occasional ''leap-second'' to correct UTC to GMT.
* VASI - Visual Approach Slope Indicator
+
* VASI - Visual Approach Slope Indicator, the glideslope lighting system ajacent to runways to guide pilots onto the correct angle of glideslope (normally 3 degrees).
 
* VC - virtual cockpit
 
* VC - virtual cockpit
 
* Vel - [[velocity]]
 
* Vel - [[velocity]]
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* VS - vertical speed
 
* VS - vertical speed
 
* VTOL - Vertical Take Off and Landing
 
* VTOL - Vertical Take Off and Landing
 +
* STOVL - Short take-off, vertical landing. As performed by the DG on full fuel employing hover thrusters during takeoff.
 
* Wrp - time acceleration factor, seen in the [[general information display]]
 
* Wrp - time acceleration factor, seen in the [[general information display]]
 
* XPDR - [[transponder]]
 
* XPDR - [[transponder]]
 
* ZM - zoom, as seen on the [[map MFD]]
 
* ZM - zoom, as seen on the [[map MFD]]

Revision as of 00:36, 3 March 2006