Science: Well-Behaved Engine

Every new airplane engine starts out in life as a fairly simple machine but gets more & more complicated as it grows up. Ram jets are no exception. The early models were hardly more than hollow cylinders—enchantingly simple, but also extremely inefficient. Their "fires" often blew out, and there was no adequate way to control their power output. So the engineers went to work to educate the ram jet and teach it how to act as a well-behaved engine should. Recently the Wright Aeronautical Corp. told how a grown-up supersonic ram jet works.

The model shown was designed to work best at...

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