Disk rotating detonation engines could provide engines that are 10% more efficient, which could enable hypersonic planes. The USA, China, and Russia will be ramping up hypersonic weapon and hypersonic ...

COLORADO SPRINGS—Long-running U.S. interest in the potential application of pressure-gain combustion to high-speed propulsion is stepping up to a new level with the award of a U.S. Air Force Research ...

Bore and Stroke: 156 mm (6.125 in.) x 174 mm (6.875 in.) The Wright Cyclone series began in 1924 with a U.S. Navy contract for a nine-cylinder air-cooled radial engine having approximately the same ...