Boeing C-75

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Developed from the Boeing Model 299 (the prototype of the famous B-17 Flying Fortress), the Model 300 was meant for civil service. The circular-section fuselage was much more spacious, and when it was decided to moderately pressurize the cabin, the designation was changed to the Model 307. Ten Model 307s were built, five of which went to TWA airlines. These five were impressed into USAAF service in 1942, receiving the designation C-75. For two and a half years these five aircraft made a total of approximately 3,000 transatlantic crossings as VIP transports. They were then released from military service and returned to Boeing for conversion back to airline standards.

Boeing C-75

Type:		long range VIP transport
Crew:		5, plus 33 passengers
Armament:	none

Specifications:
	Length:        	74' 4" (22.66 m)
	Height:        	20' 9.5" (6.34 m)
	Wingspan:      	107' 0" (32.61 m)
	Wing area:	1486 sq. ft (138.05 sq. m)
	Empty Weight:  	30,000 lb (13,608 kg)
	Max Weight: 	45,000 lb (20,412 kg) max at takeoff

Propulsion:
	No. of Engines:	4
	Powerplant:    	Wright GR-1820 Cyclone radial
	Horsepower:	900 hp each

Performance:
	Range:		910 miles (1464 km)
	Cruise Speed:   220 mph ( 354 km/h)
	Max Speed:      246 mph ( 396 km/h)
	Ceiling:       	26,200 ft (7985 m)

(go to Boeing page)