2023年9月16日 · The Boeing 747 Tri-jet would have been significantly shorter than the base 747. It was designed to compete with contemporary widebody tri-jet airliners, namely the Lockheed L1011 and the McDonnell Douglas DC-10 .

2024年11月3日 · The Boeing 747 TriJet was envisioned to serve a niche between the smaller DC-10 and L-1011 and the larger models offered by the American manufacturer, such as the 747-100 and 747-200 models. The premise was that a three-engine version of the 747 could reduce operating costs while ensuring that much of the range and payload could stay the same.

2023年10月10日 · The Boeing 747 Tri-jet would have been significantly shorter than the base 747. It was designed to compete with contemporary widebody tri-jet airliners, namely the Lockheed L1011 and the McDonnell Douglas DC-10.

747 Trijet During the late 1960s and early 1970s, Boeing studied the development of a shorter 747 with three-engines to compete with the smaller L-1011 TriStar and DC-10. The 747 trijet would have had more payload, range and passenger capacity.

A trijet is a jet aircraft powered by three jet engines. In general, passenger airline trijets are considered to be second-generation jet airliners, due to their innovative engine locations, in addition to the advancement of turbofan technology.

Boeing 747-300 Trijet – downsized 747 to compete with the DC-10 and L-1011, changed to four engines; Blended Wing Body Trijet – proposed design based on the Boeing X-48; McDonnell Douglas MD-XX – stretched derivative of the DC-10, project shelved; North American NR-349 – proposed interceptor derivative of the A-5 Vigilante, cancelled; Airbus twin-tail trijet, [2] – …

2021年5月31日 · The tri-jet model of the 747 was not completely abandoned by Boeing. Rather than continuing development with three engines, the manufacturer constructed a 747 with four engines, as its customary. The 747SP was given the suffix to stand for ‚Special Performance’.

2023年12月10日 · One of the more peculiar studies was that of a conceptual 747 TriJet, which would have a third engine located towards the tail of the 747. The trijet configuration was envisioned to improve fuel efficiency and provide additional range in an era where TriJets were carving a pathway for themselves.

2021年6月13日 · Boeing decided instead to pursue a shortened four-engine 747, resulting in the 747SP. But Boeing never really gave up on the trijet dream. According to flight international in 1978, Boeing was right at the cusp of announcing a new trijet design after being pushed to the market by American Airlines.

Boeing 747-300 TriJet concept. During the 1970’s Boeing wanted to better compete with the DC-10 and L1011. The Boeing 747SP was too costly to directly compete, so for a short while, Boeing looked at creating a 747 with three jets instead of the standard four.