Martin 4-0-4

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Martin 4-0-4
Martin 404 N145S Southern Aws ATL 15.04.72 edited-2.jpg
Nine Martin 404s of Southern Airways at Atlanta Airport in 1972, being prepared for departure on the morning wave of flights
General information
TypeShort/medium range airliner
Manufacturer Glenn L. Martin Company
Primary users Eastern Air Lines
Number built103
History
Manufactured1951-1953
Introduction date1951
First flightOctober 21, 1950 [1]
Developed from Martin 2-0-2

The Martin 4-0-4 is 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).

Contents

Design and development

When production of the earlier Martin 2-0-2 was stopped due to problems with wing structural failure the company decided to re-wing an improved version (which had already flown as the Martin 3-0-3). The new aircraft was the Martin 4-0-4. It had structural changes to the wings, pressurization and was lengthened slightly to take 40 passengers. Like the earlier 2-0-2, the 4-0-4 was a cantilever monoplane with a standard tail unit (cantilever tailplane and single vertical stabilizer). It had an airstair in the lower tail section for passenger boarding and disembarkation, retractable tricycle landing gear and was powered by two Pratt & Whitney R-2800-CB16 radial piston engines.

Operational history

United States Coast Guard RM-1Z/VC-3A. Martin RM-1Z USCG in flight.JPG
United States Coast Guard RM-1Z/VC-3A.

First deliveries in 1951 were made to Eastern Air Lines (EAL), which had ordered 60, and Trans World Airlines (TWA), which had ordered 40. The only other new aircraft from the production line were delivered to the United States Coast Guard which had ordered two as executive transports with the designation RM-1G later changed to RM-1 and then in 1962 to VC-3A. In 1969 they were transferred to the United States Navy and were withdrawn from use by 1970. A total of 103 aircraft were built at the Glenn L. Martin factory in Baltimore.

TWA operated its 40 4-0-4s under the name "Skyliner" on scheduled services between 1 September 1950 and the last flight on 29 April 1961. [2] EAL operated its 4-0-4s in the eastern USA using the class name "Silver Falcon". The first EAL schedule was flown on 5 January 1952 and retirement came in late 1962. [3]

The restored Martin 404 in 2008 at Camarillo Airport wearing Pacific Air Transport markings shortly before its last flight to Valle Airport Martin 404 Pacific AT Camarillo 03.01.08R.jpg
The restored Martin 404 in 2008 at Camarillo Airport wearing Pacific Air Transport markings shortly before its last flight to Valle Airport

Later in their airline career, as they became displaced from the EAL and TWA fleets by turbine-powered aircraft, the 4-0-4s became popular with "second level" operators, known as "local service air carriers" in the U.S. as described and regulated by the federal Civil Aeronautics Board (CAB), with these airlines needing to replace their Douglas DC-3s. [4] One of the last 'major' US airlines with a large fleet of piston-engined airliners was Southern Airways which operated 25 model 4-0-4s on a network of scheduled services from Atlanta in October 1961, all ex-Eastern Airlines aircraft. [5] Southern Airways' last 4-0-4 service was flown on 30 April 1978 [6] with the air carrier then replacing them with smaller Fairchild Swearingen Metroliner "Metro II" turboprops. This was the last piston-engine airliner flight of all the mainstream USA carriers. Martin 4-0-4s were also flown by Pacific Air Lines (which subsequently merged with Bonanza Air Lines and West Coast Airlines to form Air West, which was then renamed Hughes Airwest), Piedmont Airlines (which operated former TWA 4-0-4 airliners), Ozark Air Lines and Mohawk Airlines during the 1960s. Most of these planes were replaced in 1968 with Fairchild F-27 and/or Fairchild-Hiller FH-227B turboprop aircraft.

Following their retirement by the aforementioned local service air carriers, a number of 4-0-4s were then operated by several U.S. based commuter and regional airlines including Air South, Atlantic Southeast Airlines (ASA), Florida Airlines, Marco Island Airways, Provincetown-Boston Airlines (PBA) and Southeast Airlines. Martin 4-0-4s were also used in Air Florida Commuter feeder service when Air Florida was operating domestic and international scheduled passenger jet service during the 1970s and 1980s.

In February 2008 the last airworthy 4-0-4, an ex TWA aircraft, was ferried to the Planes of Fame Museum in Valle, Arizona. [7]

Operators

♠ original operators

Civil

An Eastern Airlines Martin 404 circa 1955 Eastern-Martin-404.png
An Eastern Airlines Martin 404 circa 1955
Flag of Bolivia.svg  Bolivia
Flag of Colombia.svg  Colombia
Flag of the Dominican Republic.svg  Dominican Republic
Flag of Haiti.svg  Haiti
Flag of Mexico.svg  Mexico
Flag of Panama.svg  Panama
Flag of the United States (23px).png  United States
Flag of Venezuela.svg  Venezuela
United States Coast Guard RM-1 in 1958. Martin 404 USCG.jpg
United States Coast Guard RM-1 in 1958.

Military

Flag of the United States (23px).png  United States

Notable accidents and incidents

Surviving aircraft

Specifications

3-view silhouette drawing of the Martin RM-1 Martin RM-1 3-view line drawing.png
3-view silhouette drawing of the Martin RM-1

Data from Jane's All The World's Aircraft 1953–54 [28]

General characteristics

Performance

See also

Related development

Aircraft of comparable role, configuration, and era

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References

Notes

  1. Gunston 1980, p. 170.
  2. Killion 1997, pp. 148–149.
  3. Killion 1997, pp. 133–134.
  4. Killion 1997, p. 67.
  5. Sievers 1969, p. 25.
  6. Killion 1997. p. 147.
  7. Airliner World , July 2008, p. 80
  8. "Accident report for Martin 404 N40416 on February 19, 1955". Civil Aeronautics Board Accident Report. Archived from the original on March 4, 2016. Retrieved May 16, 2015.
  9. "Accident report for Martin 404 N40403 on April 1, 1956". Civil Aeronautics Board Accident Report. Archived from the original on March 4, 2016. Retrieved May 16, 2015.
  10. "Accident report for Martin 404 N449A on July 2, 1963". Civil Aeronautics Board Accident Report. Archived from the original on March 4, 2016. Retrieved May 16, 2015.
  11. "Atlanta, GA Chartered Plane Crashes, May 1970 | GenDisasters ... Genealogy in Tragedy, Disasters, Fires, Floods". www.gendisasters.com. Archived from the original on 2019-02-24. Retrieved 2019-02-23.
  12. "AJC archival photos: 1970s Georgia plane crashes". myajc. Retrieved 2019-02-23.
  13. "Accident report for Martin 404 N464M on October 2, 1970". Aviation Safety Network. Retrieved May 16, 2015.
  14. Henderson, David P. "PBA MARTIN 404 N40415 AT FANTASY OF FLIGHT". Sunshine Skies. David P. Henderson. Retrieved 1 April 2017.
  15. "Flying & Static Aircraft". Planes of Fame. Archived from the original on 20 May 2017. Retrieved 1 April 2017.
  16. "Airframe Dossier - Martin 4-0-4, c/n 14135, c/r N636X". Aerial Visuals. AerialVisuals.ca. Retrieved 1 April 2017.
  17. "FAA REGISTRY [N636X]". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 1 April 2017. Retrieved 1 April 2017.
  18. Rambow, Bill. "MARTIN 4-0-4 EASTERN AIRLINES "SILVER FALCON"". Mid-Atlantic Air Museum. Archived from the original on 11 December 2016. Retrieved 1 April 2017.
  19. "Martin 404 N145S". Airline History Museum. Archived from the original on 2 April 2017. Retrieved 1 April 2017.
  20. "EAL Martin 404 Cockpit". National Museum of Commercial Aviation. Archived from the original on 1 April 2017. Retrieved 1 April 2017.
  21. "Airframe Dossier - Martin 4-0-4, c/n 14143, c/r N9234C". Aerial Visuals. AerialVisuals.ca. Retrieved 1 April 2017.
  22. "Skyliner". Pima Air & Space Museum. Pimaair.org. Archived from the original on 1 April 2017. Retrieved 1 April 2017.
  23. "Airframe Dossier – Martin 4-0-4, c/n 14158, c/r N974M". Aerial Visuals. AerialVisuals.ca. Retrieved 1 April 2017.
  24. "FAA Registry". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 1 April 2017. Retrieved 1 April 2017.
  25. "Strawberry Point Flight Line". The Glenn L. Martin Maryland Aviation Museum. Archived from the original on 1 April 2017. Retrieved 1 April 2017.
  26. "Airframe Dossier - Martin 4-0-4, c/n 14233, c/r N259S". Aerial Visuals. AerialVisuals.ca. Retrieved 1 April 2017.
  27. "Airframe Dossier - Martin4-0-4, c/n 14246, c/r N255S". Aerial Visuals. AerialVisuals.ca. Retrieved 1 April 2017.
  28. Bridgman 1953, pp. 255–256.

Bibliography