www.pulse-jets.com

I did. Mostly just work, though. I made a robot with a swingarm that would get a ball up to 100mph so we could get a controlled tick against an instrumented bat. The final verdict was, if the microphones there don’t hear the tick, it didn’t happen, but if they hear it, it did not necessarily happen....

Hi Vic, I would very much like to see that. Maybe start a thread in the Valved fora?
I enjoyed my time in Loughborough. Do you live thereabouts? I did some fun work for the Int'l Cricket Council at the National Cricket Performance Centre there.

Welcome, Alexander!

I’m thinking more like one rev per pulse on a smaller propeller, maybe.
Wonder if the snorkelers would work if bent over and trmendously lightened. Your 360g seems a reasonable weight budget without getting too crazy with materials.

360 grams is really good, I'm thinking.

My approach was making a pulsepot helicopterish thing, but I could not get it to sustain:
https://www.youtube.com/watch?v=mXgAOvkrOF4

Ha, Mark, spot on. The next one is a viscous shear type, and the deep dive has been how to compensate for viscosity change with temperature, and using liquids available three centuries ago, like ethanol. That approach has a chance of doability in the 1700's.

Here's what I've been working on lately, non-resonant timekeepers. And here's a paper I've written about it, some light bathroom reading!

Wow, that post is why I keep this trove alive! Thanks, Dynafogger!

Wow, that animation is top notch!

I would definitely like to hear what you've got. I wish I'd been more social with him, and wish he'd finished his book.

Sad to hear. I talked to him a few years ago and also wish I'd made more of an effort to visit him. I'm sure it would have been a fascinating visit. Nice gentleman. I wonder if he had disposed of his collection before moving to the home? I doubt it, and the family is wondering what to do with all th...

Sadly, no. I find PJet work is something I do when I can have joy in my heart, and '22 was rough. Lost my mom and brother, heavy sigh. So the 3d printed motor sits there waiting for me to machine a new starting jet fitting. Clockwork has become more soothing for the moment. I don't know why the two ...

Good luck, Manolo!

Honestly, that is so cool, Mark!
Hope all is well, man. Looks like you are still having fun.
I am absorbed by clockwork these days, but never stop thinking pulsejetting, really.

Great! Nice run to start a year that can only be better than last year!
I gotta get out and make some flame and noise. Thanks for the inspiration.

Hope all is well otherwise, Joost!