تويتر \ SFO Museum على تويتر: "#OTD in 1982, the Boeing 757 took its first flight. Designed to be more fuel efficient than its predecessor, the trijet 727, the twinjet 757 was
How can airplanes on short - say 60 minute - duration flights spend half the flight climbing to 34,000ft, and half the flight descending from 34,000ft? - Quora
![Artist concept of a short-field, high fuel-efficiency aircraft in flight - NARA & DVIDS Public Domain Archive Public Domain Search Artist concept of a short-field, high fuel-efficiency aircraft in flight - NARA & DVIDS Public Domain Archive Public Domain Search](https://cdn10.picryl.com/photo/1979/01/01/artist-concept-of-a-short-field-high-fuel-efficiency-aircraft-in-flight-26aa0e-1024.jpg)
Artist concept of a short-field, high fuel-efficiency aircraft in flight - NARA & DVIDS Public Domain Archive Public Domain Search
![One third of EU's busiest flights have train alternatives under six hours - Greenpeace European Unit One third of EU's busiest flights have train alternatives under six hours - Greenpeace European Unit](https://www.greenpeace.org/static/planet4-eu-unit-stateless/2021/10/6cd70241-gpes-action-1024x683.jpg)