NASA's X-43D was designed to fly at speeds approaching Mach 15 — roughly 11,000 miles per hour — using a hydrogen-fueled scramjet to sustain just 30 seconds of powered flight before gliding to ...
Revival of supersonic air travel is a subject which has largely been relegated to ‘silly season’ status in the two decades since withdrawal of the BAC-Aerospatiale Concorde fleet. While no supersonic ...