An experimental American rocket-powered aircraft of World War II built by
Northrop with an Aerojet engine. The MX-324 had a length of 4.3 m, a wingspan
of 11.6 m, a top speed of 885 km/h, and a maximum range of 1,600 km. It
maiden flight was on July 5, 1944, at Harper Dry Lake, California. The test
pilot, Harry Crosby, lay prone in order to withstand the high acceleration.
Only three of the planes were ever built: two were severely damaged during
testing and a third was dismantled.