how do I make a pulse jet engine with 100 pounds of thrust?

I want to make a pulse jet which will produce about 100 pounds of thrust.

I recommend you use a simple but effective "U" shaped engine.
you can find plenty of info at http://www.pulse-jets.com/valveless/
neivadan5 years ago
well one way you can do this is by thinking of how a flying ufo saucers work well actuly they work in many way but not compared to earths.
Jaycub8 years ago
I came across this design on pulse-jets.com. You might try something like this:
toroidal-vortex valve, valveless pulsejet.png
Jaycub Jaycub8 years ago
The the shape of the inside of this design cause the explosions make toroid-shaped vortexes that act as one way valves because of the direction of their spin. As far as I know this has never been made before, but I am planning to make one like this this summer.