A double-deck 72.2m (237ft)-span swept wing passenger jet with two aft mounted Rolls-Royce Trent-like engines and an altitude ceiling of 55,000ft (16,700m) has been proposed as a more environmentally friendly airliner by a group of former UK aerospace engineers, calling their project Stratos.
Read more about Stratos... and if you want more images of future aviation concepts check out our gallery on AirSpace.
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