Giant US aerospace and defence group Boeing and Norwegian defence and aerospace company Nammo have successfully test fired an artillery projectile powered by a ramjet. Announced on Tuesday, the test took place on June 28, at Norway’s Andøya Test Centre. A ramjet is a structurally simple form of jet engine, with no moving parts; such an engine is composed of an inlet, a combustor (with a fuel injector and a flame holder) and a nozzle. To work, a ramjet has to already be in forward motion, as it ...
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