Martin 4-0-4
1950
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Martin 4-0-4

The Martin 2-0-2, like its direct rival the Convair CV-240, was aimed at the requirement for a postwar DC-3 replacement for short-/medium-haul services. It was also Martin's first low-wing twin-engine type; however, unlike the Convair, it was not pressurized. Early orders from TWA, Northwest and others were promising, but the loss of a Northwest example due to structural failure in 1948 made necessary modification of all existing examples and curtailment of 2-0-2 production. Remedial action, pressurization and other design changes were channelled into the slightly larger Martin Model 4-0-4, which superseded the planned 3-0-3 and gained 101 orders from TWA and Eastern. A total of 148 of all types were built until 1952, and examples served well into the 1980s with commuter airlines. Operational numbers are now in the single figures.

Robert Jackson "The Encyclopedia of Aircraft", 2004

3-View 
Martin 4-0-4A three-view drawing (2245 x 1235)


Specification 
 ENGINE2 x 2400hp Pratt Whitney R-2800 CB-16
 WEIGHTS
    Take-off weight20366 kg44900 lb
    Empty weight13211 kg29125 lb
 DIMENSIONS
    Wingspan28.42 m93 ft 3 in
    Length22.73 m74 ft 7 in
    Height8.66 m28 ft 5 in
    Wing area80.27 m2864.02 sq ft
 PERFORMANCE
    Cruise speed502 km/h312 mph
    Ceiling8840 m29000 ft
    Range3058 km1900 miles

Comments 
Dan Scott, c47oami(@)aol.com, 04.05.2008

Looking for an Ozark Airline M-404.
Want to ferry it to Smartt Field in St Charles MO.
We will restore it back to the Ozark colors.
We are a Non Profit org.

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