One of his most impressive projects is the 100 pound thrust pulse jet that was later attached to a go-kart. His no weld version of a pulse jet can be built in even the most minimalist work shop ...

How does a pulse-jet engine work? Take, as a means for explanation, the Beast, a Maddox vehicle resembling a go-kart with a trio of pulse jets stacked behind the driver’s seat. These engines are ...