[Colin] is a proponent of crazy hacks – we’ve featured him before for his land speed record holding baby carriage, and his pulse jet powered ... this particular engine build at home.

His no weld version of a pulse jet can be built in even the most minimalist work shop and is the epitome of an easy-to-build jet engine. To get an idea of how fast [Bruce]’s planes can be ...

The pulse jet engine (pictured here, with air intake unit at right) was found at a hospital in Mosul, Iraq in September 2017 The Islamic State (IS) group attempted to develop high-speed drones ...