The B-17 Flying Fortress bomber served as the basis for many modifications, including transport versions. The first transport variant, designated XC-108, was created in 1943 specifically for General Douglas MacArthur. This VIP transport was converted from a B-17E bomber (serial 41-2593), featuring additional windows and a comfortable passenger cabin with a kitchen.
Later, a B-17F-40-VE (serial 42-6036) was similarly modified for General MacArthur, receiving the designation YC-108.
The XC-108A: Cargo and Himalayan Flights
A more extensive conversion was undertaken for the XC-108A, based on a B-17E (serial 41-2595). All armament and armor were removed, the crew layout was altered, and space for the passenger cabin was maximized. This aircraft was primarily used for delivering cargo and personnel to a B-29 base located in Chengdu, China, undertaking challenging flights over the Himalayas.
Due to engine problems, the XC-108A was returned to the United States in October 1944 and was soon dismantled. In 1985, surviving parts of the XC-108A were gathered by an aviation enthusiast and transported to Galt Airport in Illinois, where there are plans to restore the aircraft.
Further Transport Developments
The final transport variant, the XC-108B, was converted from a B-17F (serial 42-30190). Similar to the XC-108A, all armament and armor were removed, and large fuel tanks were installed. It was briefly utilized as an aerial tanker.
Additionally, there were two other significant B-17G transport modifications: the CB-17G, capable of carrying up to 64 soldiers (25 such aircraft were built), and the VB-17G, a VIP transport designed for high-ranking officers (8 machines produced).
Technical Specifications
| Modification | XC-108 |
| Wingspan, m | 31.65 |
| Length, m | 22.66 |
| Height, m | 5.82 |
| Wing area, m2 | 141.90 |
| Empty weight | 1 41800 |
| Normal takeoff weight | 18900 |
| Engine type | 4 Piston engine Wright R-1820-65 Cyclone |
| Power, hp | 4 x 1200 |
| Maximum speed, km/h | 483 |
| Cruising speed, km/h | 450 |
| Practical range, km | 4500 |
| Practical ceiling, m | 10800 |
| Crew | 5 |
| Payload: | 7 passengers |
Image and diagram gallery of the C-108 Flying Fortress
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