Boeing C-108 Flying Fortress

"C-108" redirects here. For other uses, see C-108 (disambiguation).
C-108 Flying Fortress
The XC-108 running up
Role Military transport aircraft
Manufacturer Boeing / Lockheed-Vega / Wright-Patterson AFB
First flight 1943
Introduction 1943
Retired 1945
Primary user United States Army Air Forces
Number built 4 conversions from B-17
Developed from Boeing B-17 Flying Fortress

C-108 Flying Fortress was the designation of four United States B-17 Flying Fortress heavy bombers which were converted to transport aircraft during World War II.

Design and development

The first C-108 built (designated XC-108) was a B-17E (41-2593) converted to a V.I.P. transport for General Douglas MacArthur in 1943. With the exception of the nose and tail turrets, all armament was removed, as was all armor. The interior of the plane was made into a flying office for MacArthur, with extra windows, cooking facilities, and living space. To facilitate entry and exit, a drop-down door with steps was installed in the rear fuselage.A similar conversion as in XC-108 was made on a B-17F-40-VE (42-6036).

Between August 1943 and March 1944, another B-17E (41-2595) was converted to a cargo aircraft and designated XC-108A. Hoping to convert obsolete bombers into cargo aircraft, the United States Army Air Forces initiated a remanufacturing station at Wright-Patterson Air Force Base. The plane was stripped of armament, armor, and other military equipment. Crew locations were shifted, and the nose was modified to provide space for cargo and/or personnel. The cockpit was accessed via the crawlway under it or through the hinged solid nose cone that had replaced the original glazed bombardier station. To increase cargo space, several bulkheads were removed and the bomb bay doors were sealed closed. This allowed much of the fuselage volume to be used to carry cargo or personnel.

A B-17F 42-30190 was converted (and given designation XC-108B) to tanker service. As in the XC-108A, it was devoid of armor and weapons, and the fuselage was modified to make space for its cargo. The fuselage was filled with fuel tanks.

Operational history

BoeingXC-108.

The XC-108 was personal VIP transport aircraft of General Douglas MacArthur in 1943.

The XC-108A was used to fly material and personnel over the Himalayas to the B-29 base in Chengdu, China. Due to chronic engine difficulties, it proved an impractical cargo aircraft. In October 1944, it was returned to the United States. By the end of the war, it was disassembled and left in a junkyard in Maine.

The XC-108A carried material and fuel over the Himalayas.

Variants

CB-17G at Patterson Field, Ohio on January 1, 1946.
XC-108
B-17E converted to VIP transport standard for General Douglas MacArthur.
YC-108
B-17F converted to VIP transport standard for General Douglas MacArthur.
XC-108A
B-17E converted to cargo or troop transport standard.
XC-108B
B-17F converted for service as a tanker.

Two other cargo transports and VIP transports were made from the B-17.

CB-17G
Troop transport version capable of carrying up to 64 troops, 25 built.
VB-17G
VIP transport version for high level staff officers, 8 built.

Operators

 United States

Specifications (XC-108)

General characteristics

Performance

Armament

Survivors

See also

Related development
Aircraft of comparable role, configuration and era
Related lists

References

External links

Wikimedia Commons has media related to Boeing XC-108.
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