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Marine expeditionary unit
A Marine expeditionary unit (MEU), formerly a Marine Amphibious Unit, is the smallest standing Marine air-ground task force, a sea-based force of roughly 2,200 to 2,500 Marines and Sailors.
Marine One
Marine One is the call sign for any US Marine Corps aircraft carrying the President, not a single aircraft; its helicopters are flown by squadron HMX-1 from Quantico, Virginia.
Mariscal Sucre International Airport
Mariscal Sucre International Airport, also known as Quito Airport, serves Quito, Ecuador, from Tababela about 18 kilometers east of the city, having opened in 2013.
Maritime patrol aircraft
A maritime patrol aircraft (MPA), also called a patrol bomber, is a military airplane that flies long ocean missions to find, track, and attack submarines and ships.
Mark D. Maughmer
Mark D. Maughmer is an American aerodynamicist and professor of aerospace engineering at Penn State since 1984, known for airfoil and winglet designs employed on hundreds of production sailplanes.
Martin B-10
The Martin B-10, also known as the Martin YB-12, was an American twin-engine bomber, the first all-metal monoplane bomber produced in quantity for the US Army Air Corps.
Martin B-26 Marauder
The Martin B-26 Marauder was an American twin-engine medium bomber built by Glenn L. Martin that served the USAAF in World War II, with more than 5,000 built.
Martin B-57 Canberra
The Martin B-57 Canberra was an American twin-engine jet light bomber and reconnaissance aircraft, license-built by Martin from the British English Electric Canberra and flown by the US Air Force from 1953 until 1983.
Martin JRM Mars
The Martin JRM Mars is a large four-engine flying boat built for the US Navy during World War II, the largest Allied flying boat of the war.
Martin M-130
The Martin M-130 was a four-engine flying boat built by Glenn L. Martin for Pan Am, which opened transpacific air service with it in 1935.
Martin PBM Mariner
The Martin PBM Mariner, also known as the Martin Mariner, was an American twin-engine gull-wing flying boat patrol bomber that served the US Navy from 1940 to 1956.
Martin-Baker
Martin-Baker is a British family-run engineering company based at Denham, Buckinghamshire, founded in 1934, whose ejection seats have saved 7,825 aircrew since 1946 across 86 countries.
Mary Babnik Brown
Mary Babnik Brown (1907–1991) was an American from Pueblo, Colorado, who donated her 34-inch blonde hair during World War II for use in meteorological instruments, refusing payment.
Mary M. Roybal
Mary M. Roybal is a retired American aerospace engineer who spent her career at Raytheon in Tucson, Arizona, and was elected to the National Academy of Engineering in 2025.
Maurice E. Shank
Maurice Edwin "Bud" Shank (1921–2012) was an American metallurgist and aerospace engineer who led development of single-crystal turbine blades at Pratt & Whitney and was elected to the National Academy of Engineering in 1983.
Maury Muehleisen
Maury Muehleisen, born Maurice Muehleisen, was an American guitarist and songwriter from Trenton, New Jersey, best known as Jim Croce's lead guitarist; he died in the 1973 plane crash that killed Croce.
MBB Bo 105
The MBB Bo 105 is a German light twin-engine utility helicopter, first flown in 1967 and the first in series production with a rigid hingeless rotor.
MC 55A Peregrine
The MC 55A Peregrine (MC-55A) is a Royal Australian Air Force electronic warfare and surveillance aircraft built from the Gulfstream G550, entering service in 2026.
McConnell Air Force Base
McConnell Air Force Base is a United States Air Force installation in Wichita, Kansas, and the host base of the 22nd Air Refueling Wing, flying KC-135 and KC-46A tankers.
McCoy Air Force Base
McCoy Air Force Base, formerly Pinecastle Army Airfield, was a Strategic Air Command bomber and tanker base in Orlando, Florida, renamed in 1958 for Colonel Michael N. W. McCoy; closed in 1975, it became Orlando International Airport, source of the MCO code.
McDonnell Douglas
McDonnell Douglas was an American aerospace manufacturer based in St. Louis, formed in 1967 by the merger of McDonnell Aircraft and Douglas Aircraft and absorbed by Boeing in 1997.
McDonnell Douglas A-12 Avenger II
The McDonnell Douglas A-12 Avenger II, developed by McDonnell Douglas and General Dynamics for the US Navy, was a stealth attack aircraft canceled in 1991 before any flew, the largest Defense Department project termination in history.
McDonnell Douglas AV-8B Harrier II
The McDonnell Douglas AV-8B Harrier II, also called the AV-8B, is a vertical and short takeoff attack aircraft that served the US Marine Corps from 1985 to 2026.
McDonnell Douglas CF-18 Hornet
The McDonnell Douglas CF-18 Hornet, designated CF-188, is the Royal Canadian Air Force's multi-role fighter, a Canadian variant of the American F/A-18 Hornet that entered service in 1982.
McDonnell Douglas DC-10
The McDonnell Douglas DC-10 is a three-engine wide-body airliner built by McDonnell Douglas from 1968 to 1989, entering service with American Airlines and United Airlines in 1971.
McDonnell Douglas DC-9
The McDonnell Douglas DC-9, also known as the Douglas DC-9, is a twin-engine short-to-medium-range jet airliner first flown in 1965, with 976 built and service with Delta until 2014.
McDonnell Douglas F-15 Eagle
The McDonnell Douglas F-15 Eagle is a twin-engine, all-weather supersonic fighter built for the United States Air Force, undefeated in 104 air-to-air victories and in service since 1974.
McDonnell Douglas F-15 STOL/MTD
The McDonnell Douglas F-15 STOL/MTD was an experimental fighter built from an F-15B with thrust-vectoring, thrust-reversing nozzles and canards, demonstrating landings on runways as short as 1,650 feet.
McDonnell Douglas F-15E Strike Eagle
The McDonnell Douglas F-15E Strike Eagle is a two-seat dual-role fighter of the United States Air Force, developed from the F-15 and first delivered in December 1988.
McDonnell Douglas F-4 Phantom II
The McDonnell Douglas F-4 Phantom II, also known as the F4H Phantom II, is a supersonic fighter-bomber that entered US Navy service in 1961, with 5,195 built.