www.pulse-jets.com

Well, I’ve bit the bullet and ordered 5 pocketjets, radically redirected so augmenters can be added, and just maybe put it in a twin jet model like F-18(?). Done right, I think this fella should do 6 lb thrust.
Being printed with 1mm walls in 316SS.

Yeah, I’ve been following that one. The fun in those articles is in the comments. :lol: HAV’s for firefighting is just silly. Just the issue of buoyancy management after dropping a load of water doesn’t get very far into the math. Our personal extensive experience with wildfires also points to very ...

Gawd, another year with not enough play. Anybody still watching, have a great holiday if you get one! I still dream of orange hot metal, and I still haven't done anything with the pocketjet I got to be an instant starter last Christmas. Lately, my daydreaming is about fanciful steampunk style airshi...

Loved this guy's work with electrolysis:
https://youtu.be/d85OX6yEwE0

Ha!

Great news, about the job I mean. Any time I interview an engineer, the first question is "what are you making at home?"

Hi Simon! I still burn some fuel and make some noise, mostly when I want to fire up a young engineer-to-be. You building anything fun?

Yeah, you've been amazingly prolific! And successful! Great job.

I had no idea there were arc lighters! Ding, The More You Know

Cool, I will try all of that! Happy Holidays!

Gawd, I have to make time for more fun! Happy Holidays, those still watching his thread. I ran my 5 pounder on Saturday. I had to quickly figure out the auto start fuel again, since at the shop we got rid of our air compressor and switched to a nitrogen tank for blow off, which doesn’t work so well ...

That color and sound is addicting isn’t it? I’m all prepped to run one this Saturday.
Scaling from 50,000 feet: a good little motor will scale up, but scaling down is really finicky. That expansive tail makes it more so. If you start with a straight tail, this scale down will probably work.

That said, both have similar acoustic geometries. I remember plotting out the acoustic length correction for the bell mouth of a valver, and it yielded the length you’d expect for a valveless intake tube. It would be a very interesting project, proving they are actually much more similar than one mi...

Very nice, Kevin! No hearing protection required?
Some time at home helped the project, I’m thinking.

Nice!