[svandamme]

i've made a pulse jet once when i was like 13 years old
tiny one , but it worked, albeit not long as i wasn't using high grade materials
probably 10 seconds till it started to melt

pretty easy stuff really
tube of the right size, couple of holes in the right place, and a rudimentary one way valve ,propane, and the right pressure


was in some kind of book from the 60'es, from my uncle when he was a kid
book was called boys and technology, part tech stuff, part sci fi stories

very noisy, that little one sounded like a big Woofer going nuts


i'll see if i can find that book at grandma's place, it had plan's and everything to do it with basic tools