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
LATAM Chile Los Cerrillos to Arturo Merino Benitez Airport. In 1985, LAN-Chile implemented a program of flights around the world called "Cruceros del Aire" ("Air Cruises"), pioneers and unique in Latin America. The initial version included two flights per year (April 26 and September 26) on a Boeing 707 named Three Oceans because it crossed the Atlantic, Indian and South Pacific oceans, visiting 18 different places. The aircraft was specially prepared for these flights. It had 80 seats in first class, thus providing passengers with ample room for their comfort. Eighty tourists were selected for a 31-day tour that included visits to