Aeronautical Terms beginning with M

M

Mach Number.

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m/s

meters per second

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m3

cubic meter

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mA

Maritime Arctic

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MAA

Maximum Authorized Altitude.

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MAC

Mean Aerodynamic Chord.

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MAHWP

Missed Approach Holding Waypoint

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MALS

Medium Intensity Approach Light System.

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MALSF

Medium Intensity Approach Light System With Sequenced Flashing Lights

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MALSR

Medium Intensity Approach Light System with Runway Alignment Indicator Lights.

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MANPADS

Man Portable Air Defense Systems

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MAP

Missed Approach Point.

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MASPS

Minimum Aviation System Performance Standard

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MAWP

Missed Approach Waypoint

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MB

Magnetic Bearing.

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MCA

Minimum Crossing Altitude.

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MCAS

Marine Corps Air Station

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MCDU

Multipurpose Control Display Unit

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MCS

Mesoscale Convective System

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MDA

Minimum Descent Altitude.

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MDH

Minimum Descent Height

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MEA

Minimum Enroute Altitude.

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MEF

Maximum Elevation Figure

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MEL

Minimum Equipment List

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METAR

Aviation Routine Weather Report

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MF

Medium Frequency

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MFD

Multi-Function Display.

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mg/m3

milligrams per cubic meter

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MH

Magnetic Heading.

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MHA

Minimum Holding Altitude

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MHz

Megahertz.

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mi

mile

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MIA

Minimum IFR Altitude

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Mid-RVR

The RVR readout values obtained from sensors located midfield of the runway.

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min

minute

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MINIT

Minutes in Trail. A specified interval between aircraft expressed in time.

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MIRL

Medium Intensity Runway Lights

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MIS

Meteorological Impact Statement

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MIT

Miles-In-Trail

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MLS

Microwave Landing System.

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MM

Middle Marker.

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MMO

Maximum operating speed expressed in terms of a decimal of mach speed.

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MMWR

Millimeter Wave Radar

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MNPS

Minimum Navigation Performance Specifications

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MOA

Military Operations Area.

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MOCA

Minimum Obstruction Clearance Altitude.

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MON

Minimum Operational Network

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MOPS

Minimum Operational Performance Standards

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MORA

Minimum Off Route Altitude

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MOS

Model Output Statistics

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MOV

Moved/moving/movement

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mP

Maritime Polar

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mph

miles per hour

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MRA

Minimum Reception Altitude.

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MRB

Magnetic Reference Bearing

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MSA

Minimum Safe Altitude.

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MSAW

Minimum Safe Altitude Warning

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MSL

Mean Sea Level.

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MSpec

Management Specification

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mT

Maritime Tropical

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MTA

Minimum Turning Altitude

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MTI

Moving Target Indicator

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MTOS

Mountain Obscuration

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MTR

Military Training Route.

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MVA

Minimum Vectoring Altitude.

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MVFR

Marginal Visual Flight Rules

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MWA

Mountain Wave Activity

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MWO

Meteorological Watch Office

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MWT

Mountain Wave Turbulence

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