How Close Are We To Hypersonic Travel?

Flying at hypersonic speed could revolutionize transportation, but there are incredible engineering and logistical challenges we need to get through first. So, how close are we to hypersonic travel? How Close Are We? Playlist - Boeing’s planned hypersonic airliner could fly from NYC to London in two hours “Boeing has unveiled plans for what could be the world’s first hypersonic airliner, a sleek, futuristic-looking craft that the Seattle-based company said would be capable of flying five times the speed of sound, or about 3,800 miles per hour. At that speed — Mach 5 in aviation parlance — it would be possible to travel from New York City to London in about two hours instead of the eight hours the trip takes on a conventional airliner” NASA Armstrong Fact Sheet: X-15 Hypersonic Research Program