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
Aeroamerica types: Aeroamerica and its sister company Air Club International, which was formed in 1970 as Club International and had operated its first commercial flight across the Atlantic to Amsterdam with an ex-TWA Boeing 707 in 1971, claimed to be the world's largest operators of Boeing "executive aircraft". There are no recorded accidents or incidents involving Aeroamerica aircraft. </div> Aeroamerica Aeroamerica, Inc. was founded as a US supplemental carrier in 1973. It was headquartered at Seattle Boeing Field, Washington. In 1975 the airline established an overseas base at Tegel Airport in what used to be West Berlin prior to German reunification.