Douglas C-54

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Douglas C-54 Skymaster / DC-4
An USAF C-54 Skymaster.jpg
US Air Force C-54E
Type: Passenger and transport aircraft
Design country:

United States 48United States United States

Manufacturer:

Douglas Aircraft Company

First flight:

February 14, 1942

Commissioning:

May 15, 1942

Production time:

1942-1946

Number of pieces:

1165 incl. XC-114, XC-116
(plus 79 civilian DC-4)

Douglas C-54 in flight
Douglas C-54A
Douglas VC-54C Sacred Cow , Air Force One
Douglas C-54D
Douglas C-54E
Douglas C-54M
Douglas R5D2-2
Douglas R5D-3
Douglas R5D-4
Douglas C-54 ex-raisin bomber

The Douglas C-54 Skymaster was the military version of the Douglas DC-4 commercial built by the Douglas Aircraft Company, produced from 1942 to 1945 . It had four piston engines and was designed to carry up to 49 passengers over long distances. Like the DC-4, the C-54 does not have a pressurized cabin . She became particularly well known for her use in the Berlin Airlift ( raisin bomber ).

variants

The C-54 Skymaster was produced in numerous variants and converted into others:

C-54
first military variant developed from the DC-4; Maximum take-off weight 29,873 kg, 24 built
C-54A
1,290 HP R-2000-7 engines, reinforced airframe, higher fuel load and convertibility from transport to passenger aircraft; Maximum take-off weight 30,872 kg, 252 built; 56 were handed over to the United States Navy as R5D-1
MC-54A
C-54A converted as an ambulance
C-54B
Version with increased fuel supply; Maximum take-off weight 33,142 kg, 220 built
VC-54C
Conversion of a C-54A as an aircraft for US President Franklin D. Roosevelt , baptismal name: "Sacred Cow"
C-54D
C-54B built with 1,450 hp R-2000-11 engines, 380, of the 22 RAF aircraft were acquired as Skymaster Mk I called
AC-54D (EC-54D)
Modification of some C-54D with special communication facilities
JC-54D
Retrofitting of nine C-54Ds to track missiles
SC-54D (HC-54D Rescuemaster )
38 C-54Ds converted by Consolidated Vultee Aircraft Corporation as Search and Rescue aircraft, designated as HC-54D from 1962
TC-54D
Conversion of C-54D to training aircraft
VC-54D
C-54D converted as a VIP transporter
WC-54D
C-54D converted as a weather reconnaissance aircraft
C-54E
Better convertibility from transport to passenger aircraft, 125 built
AC-54E (EC-54E)
C-54E with special calibration device, from 1962 EC-54E
SC-54E
C-54E converted as Search and Rescue aircraft, known as HC-54E from 1962
VC-54E
C-54E converted as a VIP transporter
XC-54F
Version for dropping paratroopers, not built
C-54G
C-54E with 1,450 hp R-2000-9 engines, 162 built
JC-54G
C-54G converted as test aircraft
SC-54G (HC-54G)
C-54G converted as Search and Rescue aircraft, known as HC-54G from 1962
VC-54G
C-54G converted as a VIP transporter
C-54GM
Variant of the combination of the DC-4 and the Douglas DC-6 produced by Canadair as North Star ; 24 built, 20 of them new
C-54H
Version for dropping paratroopers, not built
C-54J
VIP transporter, not built
XC-54K
Long range version with Wright R-1820 engines, one rebuilt
C-54L
Conversion of a C-54A in 1947 with a new fuel system
C-54M
38 C-54E converted into a coal transporter for the Berlin Airlift
MC-54M
30 C-54E converted into an ambulance
VC-54N (R5D-1Z)
VIP Transporter, conversion from C-54A (before 1962 R5D-1)
C-54P (R5D-2)
30 C-54B handed over to the US Navy
VC-54P (R5D-2Z)
VIP Transporter, conversion from C-54B (before 1962 R5D-2)
C-54Q (R5D-3)
95 C-54D handed over to the US Navy
VC-54Q (R5D-3Z)
VIP Transporter, conversion from C-54D (before 1962 R5D-3)
C-54R (R5D-4)
20 C-54E handed over to the US Navy
C-54S (R5D-5)
R5D-2 / -3 brought to the standard of the C-54G
VC-54S (R5D-5Z)
VIP-Transporter, conversion from C-54S (before 1962 R5D-5)
C-54T (R5D-6)
US Navy C-54J, not built
EC-45U
two R5D-4 equipped with special electronics for the United States Coast Guard
RC-54V (R5D-3P)
Conversion of R5D-3 to reconnaissance aircraft
XC-112 (YC-112A)
C-54B with pressure equalization cabin and Pratt & Whitney R-2800 engines, prototype DC-6 , one built
XC-114
extended C-54E with Allison V-1710 engines, one built
XC-115
XC-114 with Packard Merlin V-1650 engines, not built
YC-116
XC-114 with special de-icing system, one built

Production for the USAAF

The C-54 was built by Douglas at two locations.

Acceptance of the C-54 by the USAAF:

Location version 1942 1943 1944 1945 1946 TOTAL
Santa Monica C-54 24         24
Santa Monica C-54A 2 46 29     77
Chicago C-54A   9 108     117
Santa Monica R5D-1   17th 2     19th
Chicago R5D-1     38     38
Santa Monica C-54B     86 3   89
Chicago C-54B     70 30th   100
Santa Monica R5D-2     11     89
Chicago R5D-2     10 9   19th
Santa Monica VC-54C     1     1
Chicago C-54D       304   304
Chicago R5D-3       76   76
Santa Monica C-54E       105   105
Santa Monica R5D-4       20th   20th
Chicago XC-54F     1     1
Santa Monica C-54G       161 1 162
TOTAL 26th 72 356 708 1 1,163

Of 46 C-54Ds, 38 were converted into SC-54Ds for sea rescue and 8 TC-54Ds for training. Another SC-54G sea rescue aircraft emerged from a C-54G. From C-54E, 27 were converted to C-54M. In the 1960s, it was converted into 15 VIP transporters (4 D, 8 E, 2 G, 1 M).

Incidents

From the commissioning in 1943 to February 2019, including military operators, there were 371 total losses of the type DC-4, of which 318 were in aircraft accidents. A total of 3505 people were killed.
Accidents involving civilian operators are listed in the main article mentioned above, even if they are originally military versions.

Technical specifications

Parameter Data
Span: 35.81 m
Length: 28.74 m
Height: 8.40 m
Wing area: 135.4 m²
Setup mass: 19,310 kg
Takeoff mass: 33,110 kg
Engine: four air-cooled 18-cylinder double star engines
Pratt & Whitney R- 2000-25 with 1,450 HP (1080 kW) each
Top speed: 450 km / h
Cruising speed: 365 km / h
Rate of climb: 5.4 m / s
Range: normal 2,200 km
maximum 6,000 km
Summit height: 6,700 m
Crew: 4-5

See also

Web links

Commons : C-54 Skymaster  - album with pictures, videos and audio files

Individual evidence

  1. ^ Tony Eastwood, John Roach: Piston Engine Airliner Production List. West Drayton: The Aviation Hobby Shop, 1996, ISBN 0 907 178 61 8 , p. 259.
  2. Peter Berry, Tom Dunstall, Michael Ford, John A. Whittle: The Douglas DC-4 . Air-Britain (Historians), Hutton, Brentwood, 1967, p. 23.
  3. Peter Berry, Tom Dunstall, Michael Ford, John A. Whittle: The Douglas DC-4 . Air-Britain (Historians), Hutton, Brentwood, 1967, p. 5.
  4. Peter Berry, Tom Dunstall, Michael Ford, John A. Whittle: The Douglas DC-4 . Air-Britain (Historians), Hutton, Brentwood, 1967, p. 23.
  5. Statistical Digest of the USAF 1946, p. 100 ff .; www.uswarplanes.net; Air-Britain Digest - July-August 1978, p. 79
  6. Statistical Digest of the USAF 1956, p. 117; 1963–1969 "Losses and Gains" tables
  7. ^ Accident statistics Douglas DC-4 , Aviation Safety Network (English), accessed on March 1, 2019.