Jet Engine Help!!! how to make a safe jet engine that works on diesel ??? can it attain the speed of 90 kmph ????

I am planning to build a jet engine . i want it to be safe and powerfull  ... please do help me in suggesting a method!!!!!!!!!!!!!

Check this out:

Looks to be exactly what you're looking for.
Pulse jets tend to be a little bit noisy. Fun, but noisy
lemonie7 years ago
Jet engines are simple (fairly) but require some precision engineering. You're best going with Raving for something within reach, but it's still a bit technical.