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Douglas C-118 Liftmaster


Douglas DC-6


Overview


C-118A Liftmaster

An US Air Force C-118A Liftmaster serving as a static display.
Source: www.ikeandcheryl.com - © copyright lies with original owner

Origin
United States
Type
Transport aircraft
Entered service
Early 1950's
Status
Obsolete
Development
1944 - 1946
Developer
United States - Douglas
Production
1946 - 1958 (civilian and military production)
Producer
United States - Douglas
Number produced
704 including both civilian and military production
Designations
DC-6 (civilian version)
R6D-1 (early US Navy designation)
C-118 Liftmaster (US military service)
Notable users
United States

Description


Introduction

The C-118 Liftmaster is an early Cold War era transport aircraft of US origin. Development started in 1944 as US forces requested a more capable version of the C-54 Skymaster. As World War 2 ended no military orders were placed but civilian production started in 1946 under the name DC-6. In the early 1950's military interest was renewed and many C-118 served well into the 1960's.

Design

The C-118 is based on the earlier C-54 but has been improved in various areas. The C-118 is larger, has a pressurized cabin and uses more powerful and economic engines. The layout remains conventional with four Pratt & Whitney radial engines on the non-swept low mounted wings and a relatively thin body.

Cargo capacity

The C-118 military transport is based on the DC-6A freighter and has a large cargo door. It may carry 12 t of cargo or 60 combat troops. The civilian DC-6B has also been acquired by various militaries. The DC-6B is a passenger aircraft which seats between 54 and 102 passengers depending on seating configuration.

Mobility

The four Pratt & Whitney R-2800-CB-17 "Double Wasp" radial engines deliver 2.500 hp each. The maximum and cruise speed are 580 and 507 km/h respectively. The range is 4.800 km and the service ceiling is 7.6 km.

Users

The main military users were the United States Air Force and Navy. The C-118 and DC-6 were exported all over the world, but were most common in Europe and South America. Since the 1960's most have been replaced by other military and civilian transport aircraft, although in foreign service some were used well into the 1980's.

Media


Variants


Military models

C-118A
US Air Force model of DC-6A with the more powerful engines later used on the DC-6B.
C-118B
US Navy model of C-118A. Was called the R6D-1 before 1962.
VC-118B
Four US Navy C-118B were converted to staff transports. Was called the R6D-1Z before 1962.

Civilian models

DC-6
Initial civilian passenger variant.
DC-6A
Civilian freight variant with cargo door and longer fuselage.
DC-6B
Passenger variant based on longer DC-6A airframe and more powerful engines.
DC-6C
Convertible cargo/passenger variant.

Details


Facts Douglas DC-6B
General
Origin
United States
Type
Transport aircraft
Crew
3 (pilot, copilot, flight engineer)
Dimensions
Length
32.18 m
Wingspan
35.81 m
Height
8.66 m
Wing area
135.9 m²
Empty weight
25.1 t
Max take-off weight
48.5 t
Propulsion
Engine setup
4x radial engine with three blade propeller
Powerplant
Pratt & Whitney R-2800-CB-17 Double Wasp
Power output
2.500 hp each
Fuel
Up to 14.9 t
Flight characteristics
Speed
578 km/h maximum
507 km/h cruise speed at altitude
435 km/h cruise speed at 6 km altitude
Range
4.300 km with maximum fuel
3.058 km with maximum payload
Ceiling
7.6 km
Climb rate
5.4 m/s
Take-off run
1.875 m
Landing run
1.525 m
Payload
Cargo
11.1 t
Passengers
54 to 102 passengers, plus limited cargo