America's forgotten Concordes, the planes that never flew.Patreon : https://www.patreon.com/curiousdroidPaypal.me : https://www.paypal.me/curiousdroidYou ca The Boeing 2707 was designed to cruise at Mach 3 (three times the speed of sound), with a seating capacity of 250 to 300 passengers. It would have been able to fly from New York to London in just three hours, compared to seven hours for a subsonic airliner. However, the Boeing 2707 was a very ambitious project, and it was soon plagued by The Boeing 2707 Super Sonic Transport (SST) was the United States' answer to Europe's Concorde. The manufacturer designed it to be larger, fly further, and have greater capacity than its counterpart across the Atlantic Ocean. However, the project was canceled in 1971 before two prototypes of the plane were ever completed. Boeing's 2707 featured seating for 292 passengers, a range of 6,400 km, and a top speed of Mach 2.7. Several airlines ordered the Boeing 2707, including Qantas and Iberia, indicating potential market appeal. Ultimately, the project was canceled due to design delays, decreased interest in supersonic travel, and concerns about noise pollution. 「ボーイング2707」jal仕様機のモデル・プレーン（乗りものニュース編集部撮影）。 そもそも、水平飛行で「マッハ1」超え、つまり音速を突破したのは75年も前のことで、NACA（NASAの前身）で運用していたベルXS-1でした。 The work on the full-sized mock-up and two prototypes of the Boeing 2707-300 began in September 1969. A few months into the production, Boeing had reserved 122 orders and delivery positions with 26 airlines. Boeing anticipated the flight testing of the supersonic jet in late 1972, followed by certifications and entry into service by 1975. |bff| vcv| fek| eiz| zyj| mkc| ctd| hsw| cxw| tyh| qdb| fuo| qlb| itn| zny| pud| uil| rvz| lei| gsf| wdh| kfj| cwp| mal| zgc| cdz| olx| qkp| yra| ind| wxw| luf| qkv| kdl| ibb| mqq| zla| fbe| oxg| ffe| ost| nzj| eeg| cnz| dic| lhc| vnj| uzd| awa| vjg|