3 ms·
It goes back longer than that; the HOTOL project started in 1982 -- http://en.wikipedia.org/wiki/HOTOL http://en.wikipedia.org/wiki/HOTOL
by cabalamat 12y ago
It goes back longer than that; the HOTOL project started in 1982 -- http://en.wikipedia.org/wiki/HOTOL http://en.wikipedia.org/wiki/HOTOL
- johan_larson 12y agoAnd even earlier: http://en.wikipedia.org/wiki/Supersonic_transport http://en.wikipedia.org/wiki/Supersonic_transport I suspect this is one of those Big Challenges that keeps tempting aeronautical engineers, and they try to apply the pushing-the-envelope high tech of their era to it. The problem seems to be the economics. There aren't a lot of people who are willing to pay 10x prices (or whatever) for 3x reductions in travel time.