Boeing 707 center section tanks. Its first flight was on January 11, 1958; 69 turbojet 707-320s were delivered through January 1963, the first passengers being carried (by Pan Am) in August 1959. The 707-420 was identical to the −320, but fitted with Rolls-Royce Conway 508 (RCo.12) turbofans (or by-pass turbojets as Rolls-Royce called them) of 18,000 lb (79 kN) thrust each. The first announced customer was Lufthansa. BOAC's controversial order was announced six months later, but the British carrier got the first service-ready aircraft off the production line. The British Air Registration Board refused to give the aircraft a certificate of airworthiness,
Longest flights this second United flight, there would be 3 daily nonstop flights from San Francisco to Singapore, 2 on United and 1 on Singapore Airlines. Singapore Airlines, however, will start nonstop flights from Singapore to Los Angeles on November 2, 2018 on an Airbus A350-900ULR aircraft. The longest range Airbus jetliner in service is the A350-900ULR, which is capable of flying . The A340-500, which is capable of flying with 293 passengers. The A380 is capable of flying with 544 passengers. The regular A350-900 can fly with 325 passengers. The longest range Boeing airliner in service is the 777-200LR, which can