JAXA Successfully Tests Its D-SEND Low-Noise Supersonic Aircraft

AmiMoJo writes: JAXA, the Japanese space agency, has successfully tested its low sonic boom demonstration aircraft D-SEND#2. The unmanned aircraft is floated up to 30,000m by balloon and released, falling back to earth and breaking the sound barrier in the process. The sonic boom created is measured on the ground. The project aims to halve the noise created by sonic booms, paving the way for future supersonic aircraft.