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Originally Posted by BamaMB
The main danger with a pulse jet is that it has to move fast to operate. It requires a sorce of ram air in the inlet. Think of a way to make a test stand that is feed with a source of moving air and that can measure the thrust gererated by the pulse jet. It can be very small and safer.
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You're thinking of a ramjet.
A pulse jet intakes air through a valve in the front, driven by the vacuum created by the exaust exiting in the rear. It can run while standing still, provided you are able to start it.