Artist's impression of Stratos double-deck airliner proposed as a more environmentally friendly airliner by a group of former UK aerospace engineers. Features of the concept include:
Sources:
http://www.flightglobal.com/articles/2008/11/18/318988/can-flight-level-550-save-the-climate-in-2028.html
http://gizmodo.com/5098079/stratos-double+deck-airplane-may-be-the-future-of-aviation
- 237-foot wingspan
- Two Roll Royce Trent-like engines, capable of developing up to 95,000 lbf.
- 55,000 feet altitude ceiling.
- 505 knots cruise speed at 47,000 feet
- 208-foot long body
- 10,400 nautical miles range.
- 256 passengers in an all-sleeper, double-deck configuration.
Sources:
http://www.flightglobal.com/articles/2008/11/18/318988/can-flight-level-550-save-the-climate-in-2028.html
http://gizmodo.com/5098079/stratos-double+deck-airplane-may-be-the-future-of-aviation