Awesome, love your stuff, Some don't understand the testicular fortitude required to run such test truly awesome

@g11690102 It was counter balanced, you cant see it in this video but there is a heavy threaded rod that barbell plates are put on. If there wasn't the whole thing would walk around or flip over even at low speed.

Man now thats the bomb a pulse jet merry go round!!! Sounds like a big bumblebee flying in circles.

Great Stuff! Have you considered a heat resistant ceramic body like the Space Shuttle tiles? Thermal cycling without expansion or fatigue working. Not sure if it can act as the combustion chamber, but it can withstand re-entry so ... hmmm maybe. Nice thing about the Shuttle tiles, is even when red hot you can touch them because the thermal conductivity is incredibly low. No burnt fingers. Keep up the good work!

@Mathview Unfortunately the tiles are very brittle, they don't handle repeated shock, much less a hundred explosions a second. We have a number of ceramic coated project videos and data that we'll release in the near future, there's so much content to go through and edit into clips. From the data we have a ceramic coated engine increases efficiency by 10-20% depending on the pulse jet

The engine was shut down at the end of the clip and was still accelerating, based off the RPM the speed works out to about 50 mph, and thats at a fraction of its full output.

That is definitely more scary than the sonic death ray.

@BeckTechnologies Ok. Materials experiments already. Exterior ceramic coating, interior combustion/exhaust zone, sound interesting. Shock and vibration present unusual challenges. Shuttle tiles have that amazingly low thermal conductivity, but don't like being hit by chunks of foam plastic. To bad. Materials like reactor graphite or "Poco" graphites have been used to handle high heat/particle flux in plasma facing components. Shaped graphite tiles are mounted on a rigid support system.

First off, very cool.How are you feeding fuel to it? When I built a propane powered helicopter I used a hollow shaft hub thing that leaked and the seals only held for a short time. I gave up on it. I still have most of the parts and could fly it if I could fix the fuel transfer problem easily. You are the only people I have seen try something like this.

@GmanFTW lol! nothing like a glowing chunk of metal flying around at groin level to scare the crap out of someone

if your going to spin it like that you might consider a counter balance ;)

Sounds like the pulse jets saying oh lord

how did you stopped it? :D

!!!!!!!

@Mathview you are officially the smartest man/woman on youtube. Im probably a close 2nd lol jks