National Geographic : 1946 Sep
U.S.Navy, Official Navy's Ram-jet Engine, Which May Drive Planes 1,000 Miles per Hour, Takes Offfrom aLaunching Rack S The "flying stovepipe" has no moving parts. Air is scooped in at the front, compressed, heated, and burned with fuel. The engine isdriven forward byitsreaction against the exhaust gases streaming out the rear. U.S.Army Air Forces, Official A Barrage of Rockets Is Released by an Army P-47 Fighter Ten 5-inch missiles loaded with high-explosive charges fired from the plane leave trails of fire as they speed toward the target at 1,800 feet per second.