Boeing 707-320B Intercontinental Turbofan Airliner Variant

The Boeing 707-320B was the long-range intercontinental turbofan branch of the 707 family. Its stretched fuselage and four Pratt & Whitney JT3D turbofans supported high-capacity transatlantic service and government/VIP transport, making the 320B one of the defining late 707 configurations. Boeing's 707-320B drawing gives 46.61 m overall length and 44.42 m span. Its international planning configuration lists 333,600 lb MTOW, rounded in the manual to 151,500 kg; the domestic planning configuration is lighter. The listed 189-seat capacity is the manual's all-economy maximum arrangement, rather than a typical mixed-class cabin. Operating empty weight, useful payload and range depend on configuration.