page_title: List of Douglas DC-4 variants
section_title: Military variants
hierarchical_section_title: List of Douglas DC-4 variants / Military variants
caption_attribution_description: English: Berliners watching a C-54 land at Berlin Tempelhof Airport, 1948.
context_page_description: This is a list of civil and military variants of the Douglas DC-4:
context_section_description: C-54
  First production variant adapted from DC-4, 24 built.
  C-54A
  First military version with strengthened airframe, increased fuel capacity, provision for passengers or cargo, Navy equivalent R5D-1, 252 built.
  MC-54A
  Optional designation for C-54As used for medical evacuation.
  ZC-54A
  Redesignation for "obsolete" C-54As.
  ZJC-54A
  One ZC-54A converted for flight testing.
  C-54B
  Increased fuel capacity in the wing, One was used by Winston Churchill, 220 built.
  VC-54C
  One C-54A converted as Presidential transport version (Sacred Cow colloq.) delivered to Air Transport Command in June 1944 for Franklin D. Roosevelt and used by Harry Truman (officially retired July 1961, transferred to "National Air Museum of the Smithsonian Institution" on December 4, 1961)
  C-54D
  Same as C-54B but with R-2000-11 engines, 380 built.
  AC-54D
  Small number of aircraft modified with special electronic  calibration and communications equipment. The aircraft were redesignated EC-54D.
  EC-54D
  Redesignation of the AC-54D.
  HC-54D Rescuemaster
  Redesignation of the SC-54D.
  JC-54D
  Nine C-54Ds temporary converted for missile tracking and nose-cone recovery.
  SC-54D
  38 aircraft converted by Convair, as search and rescue aircraft. Later redesignated HC-54D.
  TC-54D
  C-54Ds converted into multi-engine training aircraft.
  VC-54D
  C-54Ds converted into VIP transport aircraft.
  WC-54D
  C-54Ds converted for weather reconnaissance.
  C-54E
  Further revision to fuel tanks and provision for rapid conversion from passenger to cargo, 125 built.
  AC-54E
  C-54Es converted for airways calibration, redesignated EC-54E in 1962.
  EC-54E
  AC-54E redesignated in 1962.
  HC-54E
  SC-54E redesignated in 1962.
  SC-54E
  C-54E converted for air-sea rescue, redesignated HC-54E in 1962.
  VC-54E
  C-54Es converted as a staff transport.
  XC-54F
  Proposed experimental paratroop version, not built.
  C-54G
  Same as C-54E but with different version of the R2000 engine. 400 ordered of which 162 were completed, remainder cancelled.
  HC-54G
  SC-54G redesignated in 1962.
  JC-54G
  C-54Gs used for temporary testing.
  SC-54G
  C-54Gs converted for air-sea rescue, redesignated HC-54G in 1962.
  VC-54G
  C-54Gs converted into VIP/staff transport aircraft.
  C-54GM North Star Mk 1
  Four-engined military transport aircraft for the RCAF, powered by four Rolls-Royce Merlin 620 piston engines. A total of 24 built for RCAF transport use, (the first six actually modified DC-4s).
  C-54GM North Star Mk M1 ST
  North Star Mk M1s converted into passenger transport aircraft.
  C-54H
  Paratroop transport. None built.
  C-54J
  Staff transport project, none built. Navy designation R5D-6.
  XC-54K
  Long range version, one aircraft built with Wright R-1820 engines.
  C-54L
  One C-54A aircraft tested in 1947 with an experimental fuel system.
  C-54M
  Specialized modification of C-54 to carry coal during the Berlin Airlift, 38 conversions.
  MC-54M
  Specialized modification of C-54E for medical evacuation, 30 conversions.
  VC-54M
  Single MC-54M converted to a VIP transport.
  VC-54N
  R5D-1Z redesignated in 1962.
  C-54P
  R5D-2 redesignated in 1962.
  VC-54P
  R5D-2Z redesignated in 1962.
  C-54Q
  R5D-3 redesignated in 1962.
  VC-54Q
  R5D-3Z redesignated in 1962.
  C-54R
  R5D-4R redesignated in 1962.
  C-54S
  R5D-5 redesignated in 1962.
  VC-54S
  R5D-5Z redesignated in 1962.
  C-54T
  R5D-5R redesignated in 1962.
  EC-54U
  R5D-4 redesignated in 1962.
  RC-54V
  R5D-3P redesignated in 1962.
  R5D-1
  56 C-54As transferred to the United States Navy.
  R5D-1C
  R5D-1s modified in US Navy service, with a fuel system based on the one used in the C-54B.
  R5D-1F
  Naval staff transport conversions of the R5D-1, redesignated R5D-1Z then VC-54N.
  R5D-1Z
  Interim designation of the R5D-1F.
  R5D-2
  30 C-54Bs transferred to the United States Navy, redesignated C-54P in 1962.
  R5D-2F
  Naval staff transport conversion of the R5D-2, redesignated R5D-2Z then VC-54P in 1962.
  R5D-2Z
  Interim designation of the R5D-2F.
  R5D-2-2
  R5D-2 converted to a radar and radio testbed with a dorsal mast and wingtip pods.
  R5D-3
  95 C-54Ds transferred to the United States Navy, redesignated C-54Q in 1962.
  R5D-3P
  Photo survey conversions of the R5D-3, redesignated RC-54V i
caption: Berliners watching a C-54 land at Tempelhof Airport (1948).
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