So have you ever what happens when you drill a hole in a jam jar and put fuel in it? well you're in luck because that's exactly what were doing today. I was pleasantly surprised with the slow motion footage but realized how much cooler it would be if someone with a camera that went up to 10,000fps at 1080p. but that's beside the point. The night shot was really amazing and I wish I had a camera that was able to truly capture what it was like in person, since I don't you'll just have to trust me that it was awesome.
Closed Captioning :
Hello everybody, today we're going to be making jam jar pulse jet engines. It's pretty easy, I know there's other ways of making them.
But all I did was cut a hole in the top, about a half inch. Then you put some remote control car fuel in. It's 20 percent nitro methane 12 percent oil and the rest is methanol. Ok it's time to review the footage. Initially i thought the first two attempts were a failure
but it turns out there wern't. The just didn't run for an extended period of time, they only ran for a few milliseconds. When I got to the actual jam jar it actually fired up and ran for 30 seconds the first attempt, which was awesome. It became apparent when i was reviewing the footage that 400 frames per second was not fast enough to capture all of the cool details that are going on inside the pulse jet engine. So i had to wait for nicer weather and went back out and filmed at 1200 frames per second. And yeah, It's just totally awesome, the results. Just how the engine functions having only one intake / exhaust hole and that it can run so fast. I did some quick math and it turned out that at it''s peak cycles/sec or hertz, It was running at one hundred twenty cycles per second. that is
insanely fast considering the fact that there's only one hole and no moving parts. It's not going to win any rocket competitions, It's not an insane amount of thrust being put out by this thing. It's probably barely measurable amount of thrust. It's still a really cool
experiment you can do at home. Anyways i hope you all enjoyed the video and thanks very much for watching.
![](https://s2.save4k.ru/pic/G4gIq9QbwoA/maxresdefault.jpg)