Martin 4-0-4

Martin 4-0-4
Nine Martin 404s of Southern Airways at Atlanta Airport in 1972, being prepared for departure on the morning wave of flights
General information
Type	Short/medium range airliner
Manufacturer	Glenn L. Martin Company
Primary users	Eastern Air Lines Trans World Airlines
Number built	103
History
Manufactured	1951-1953
Introduction date	1951
First flight	October 21, 1950 [1]
Developed from	Martin 2-0-2

The Martin 4-0-4 was an American pressurized passenger airliner built by the Glenn L. Martin Company. In addition to airline use initially in the United States, it was used by the United States Coast Guard and United States Navy as the RM-1G (later as the VC-3A).