Boeing 707 ushering in the Jet Age. It established Boeing as one of the largest manufacturers of passenger aircraft, and led to the later series of airliners with "7x7" designations. The later 720, 727, 737, and 757 share elements of the 707's fuselage design. The 707 was developed from the Boeing 367-80, a prototype jet first flown in 1954. A larger fuselage cross-section and other modifications resulted in the initial-production 707-120, powered by Pratt & Whitney JT3C turbojet engines, which first flew on December 20, 1957. Pan American World Airways began regular 707 service on October 26, 1958. Later derivatives included the
Qantas fleet history of the BOAC titles. Following this, Qantas placed in service twenty-two Boeing 707-338C aircraft, which replaced the Boeing 707-138Bs and provided for expansion of the fleet. These entered service in February 1965 and flew through until retirement in March 1979. From 1971, Qantas operated the Boeing 747-238B aircraft, which strengthened its long haul fleet. When the Boeing 707s were retired in 1979, Qantas became the world's only all Boeing 747 operator. In 1981, two short body 747SPs entered the fleet for flights to Wellington, and they were subsequently used on non-stop flights between Sydney and Los Angeles. In November 1984,