Above mean sea level
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MEAN SEA LEVEL - Altitude in feet compared to the average sea level (referenced with a 0 altitude). Altitudes reported by controllers and pilots use mean sea level as a reference.
Mean sea level. The average height of the surface of the sea at a particular location for all stages of the tide over a 19-year period.
MFD. See multi-function display.
MH. See magnetic heading.
Mean sea level (MSL) - The average height of the surface of the sea for all stages of the tide; used as a reference for elevations. Also called sea level datum.
Mean Sea Level (MSL) Altitude
Altitude expressed in feet measured from mean sea level.
Maneuvering Area ...
MEAN SEA LEVEL SEE MSL
METAR - Acronym in FAA pilot briefings and weather reports simply means an "aviation routine weather report," but nobody seems certain about the original source.
MEAN SEA LEVEL see MSL
MOGAS - An aviation nickname for everyday automobile gasoline intended by the purchaser for aircraft use.
Mean sea level (MSL).
Standard aviation term See Also: above sea level;
Measured.
Raw data converted to standard units; Compare: derived, estimated, filtered, raw, selected, smoothed ...
MSL (Mean Sea Level)
The average height of the surface of the sea for all stafes of tide; used as a reference for elevations throughout the U.S
N1
The rotational speed of the low-pressure compressor in a dual-spool gas turbine engine ...
MSL (Mean Sea Level) Altitude expressed as feet above sea level, rather than above local terrain (AGL). To ignore varying terrain elevations, all navigational altitudes and barometric altimeters are based on height above mean sea level.
Mean Sea Level (MSL) →
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Above Mean Sea Level - Altitude.
ANP
Actual Navigation Performance - Term used by Boeing as a measure of the current estimated navigational performance.
Above mean sea level - the altitude indicated on the altimeter when QNH is set on the subscale
ARFOR
Area forecast ...
msl - mean sea level
MTBF - mean time between failures. Also MTTR, mean time to repair
MTMA - military terminal control area.
amsl: above mean sea level.
APU: auxiliary power unit (normally used during engine start).
ASI: airspeed indicator.
AMSL
Above mean sea level
ANGEL OF ATTACK
The difference between pitch and the air-referenced flight path angle; the angle between the aircraft center line and the airspeed vector in the verti...
MSL: ≡ altitude above mean sea level, 12.3
MV: ≡ momentum vector, 8.8
magnetic north, 14.2.2
magneto, 15.1.1, 21.3
maneuvering , 16
maneuvering speed: See under airspeed, 2.13.2
margin: See safety margin, 12 ...
Class A is generally the Airspace of 18,000 ft mean sea level (MSL) up to and including flight level (FL) 600, including the airspace overlying the waters within 12 nautical miles of the coast of the 48 contiguous States, and Alaska.
Jet routes start at 18,000 feet mean sea level (msl) and extend upward to an altitude of 45,000 feet msl (altitudes above 18,000 feet are called "flight levels" and are described as FL450 for 45,000 feet msl). Jet routes have names like J42 or J121.
The altimeter tells you your MSL (Mean Sea Level) altitude, your altitude above sea level, not AGL (Above Ground Level) altitude. The altimeter works by reading atmospheric pressure, which decreases as altitude increases and vice versa.
Barometric Altitude: Height with respect to fixed earth reference (above mean sea level).
Barometric Pressure: Height with respect to fixed earth reference (barometric altitude, feet above mean sea level).
BC: Bus Controller.
International Standard Atmosphere An imaginary atmosphere that assumes at mean sea level a temperature of 15° C and a pressure of 1,013Â-2 millibars, and a fall in temperature of 6Â-5°C per 1,000m of increased height from sea level up to 11,000m, ...
Acronym for Above Ground Level. A normal altimeter reads Mean Sea Level (MSL), a more realistic altitude measurement over land is the AGL. Most military aircraft have a "radar-altimeter" to determine their height above ground level.
Aileron ...
MINIMUM DESCENT ALTITUDE- The lowest altitude, expressed in feet above mean sea level, ...
An instrument which displays the altitude above mean sea level (MSL) of an aircraft.
Artificial Horizon ...
It assumes, at mean sea level, Temperature = 15º C; Pressure = 1013.2 millibars. The temperature is calculated to fall by 6.5º C. for every additional 1,000m (3,281ft) of height up to 11,000m (36,089ft) above sea level.
aerodrome/airport elevation - highest point of an aerodrome's usable runway(s) expressed in feet above mean sea level (amsl).
AEW - Airborne early warning
AFB - air force base, usually U.S. or Canadian.
Altimeter
An instrument which displays the altitude above mean sea level (MSL) of an aircraft.
2 millibars (standard pressure) when the aircraft is at aerodrome elevation.
QNH: altitude above mean sea level based on local station pressure.
QTE: true line of position from a direction-finding station.
QUJ: true bearing ...
Air MEA Minimum Enroute Altitude (IFR) MOCA Minimum Obstacle Clearance Altitude (IFR) MP Manifold Pressure (usually refers to the gauge which is the primary indication of power output in aircraft with controllable-pitch props) MSL Mean Sea Level - ...
 See also: Aircraft, Flight, Aviation, Pilot, Altitude
  
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