Douglas
C-54 / R5D
Skymaster
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Photo: Robert Deering 1974
Valley International Airport (HRL)

Harlingen, Texas
The C-54 was the military derivative of the Douglas DC-4, a four-engine long range airliner with a three-man crew and accommodations for up to 49 passengers or 26 troops. Originally designed to a specification from United Airlines, the DC-4 had a maximum speed of 274 mph and a range of 3900 miles. The first 61 civilian orders were followed by a further buy for 71 from the USAAC though, in the end, most ended up in Army service.

To meet the military's more stringent needs, the DC-4 was given a cargo door, stronger floor, cargo boom hoist and larger wing tanks. First flight of the military C-54 occurred on 26 March 1942. During the war years, 1242 C-54s were delivered with a wide variety of modifications. A few of the major ones were the C-54A, the original, fully militarized model capable of lifting 50 soldiers or 32,500 pounds of cargo; the JC-54D, which was modified for missile nose cone recovery; the C-54E, with larger Pratt & Whitney engines, bigger fuel tanks for longer range and a specially designed cabin for quick conversion between passenger and cargo roles; the C-54M, which was a C-54E stripped out to serve as a coal-carrier during the Berlin Airlift; the EC-54U, a post-war modification as an electronic counter-measures platform; and at least 14 sub-variants built for the US Navy originally called the R5D. There were numerous other variants which performed countless other roles, from VIP transport to multi-engine training.

When it was decided that the President of the United States, Franklin D. Roosevelt, should have a personal airplane to transport him to meetings around the world, the aircraft of choice was the US Army Air Corps’ (USAAC) C-54A Skymaster. Dubbed ‘The Sacred Cow’, this was the plane that took the president to Tehran, Casablanca, Hawaii and other less exotic spots in the USA.

The C-54 offered sterling service for both the USAF and the US Navy after the war, and was not fully retired until the late 1960’s. Ex-military Skymasters became popular as cargo transports and fire bombers, and many are still in active use around the world in these roles. A lucky few have been acquired by appreciative warbird groups in the USA.

     
Photo: Robert Deering 1991
Midland International Airport (MAF)

Midland, Texas
     
SPECIFICATIONS: PERFORMANCE:
Span:  117ft. 6in. Maximum speed:  280 mph at 14,000 ft.
Length:  93ft. 10in. Cruising speed: 
Height:   27ft. 6in. Range:  2,500 miles
Empty Weight:  43,300 lbs Service ceiling:  22,300 ft.
Gross Weight:  73,000 lbs.  
Crew: 
Engines:  Four 1,450-hp Pratt & Whitney R-2000-2SD-13G Twin Wasp radial piston engines
Armament:  None
   
SOURCE:  Warbird Alley (History by Jeff VanDerford)  
VARIANTS:

VC-54
"Sacred Cow"
   
1959 DOD Aircraft
Recognition Manual Page