NASA says the preliminary design review of its Quiet Supersonic Transport (QueSST) project suggests it is possible to create a supersonic aircraft that doesn't produce a sonic boom.
NASA says "Senior experts and engineers from across the agency and the Lockheed Martin Corporation concluded on Friday that the QueSST design is capable of fulfilling the LBFD aircraft's mission objectives, which are to fly at supersonic speeds, but create a soft 'thump' instead of the disruptive sonic boom associated with supersonic flight today."
NASA's commercial supersonic technology project manager Peter Coen explains, in this video, that "the idea is to design the airplane so that the shock waves that are produced in supersonic flight are arranged in such a way that you don't have a boom. You have just a general kind of a gradual pressure rise that produces a quiet sound."
NASA's next step is finding organisations willing to build a working model of the Low Boom Flight Demonstration (LBFD) experimental airplane and fly it over American cities and towns to hear how much noise it makes. It's hoped those flights could start in 2021.
Nah, rather travel in the kind of zeppelin Sergei Brin is building.
(Score: 0) by Anonymous Coward on Wednesday June 28 2017, @11:50PM
The train only starts to look competitive if you deliberately make all other transportation modes unpleasant: don't construct adequate parking for cars, have bullshit TSA style security burdens at the airport, etc.
Trains are just inflexible and slow for long distance travel.
The only way they make sense is if you design your entire city and suburbs around the train, something most countries do not do.