www.pulse-jets.com

All of this sidebar flamewar stuff is interesting (and probably funny to those in the know), but my basic question is still an important one. James Irvine has exempted himself from wanting an answer but this does not speak for me, and probably a lot of other forum members would like to know this as ...

Eye of newt and goat stew!!! Man, James, you've got me laughing MFA-off right now!! Good one!

So - that's what this place is all about - Eye of newt and goat stew! I shoulda knowed it!

or is it just you

multispool wrote:I have no interest in thrust so will keep the side port straight!

As a pressure-gain combustor for gas turbine experiments then?

Irvine.J wrote:small steps CG, but they get you there.

You're right, and you would know about this stuff, not me! I was just curious about the numbers. Thanks for clearing that all up!
Very innovative work you're doing, keep it up!

Oops, you're right, 450 ml is 27 liters per hour (my fat fingers...) Sooo, that's 27 kg /hr times .69 equals 18.36 kg per hour fuel consumption...TSFC is 2.0 so thrust equals 9.18 kg or 20.2 lbs for this motor. However, I now understand you didn't use liquid fuel, just propane vapor and extrapolated...

... it burns about 450 ml per minute of liquid fuel at max throttle which is pretty close to 2.0 TSFC Assuming your liquid fuel was petrol (sp. gr. ~0.68), then 450 ml per minute equals 60.45 liters per hour. With a sp. gr. of 0.68 g per cc, 60.45 liters weighs 41.11 kg. If your TSFC was 2.0 kg fue...

Hi James, I just visited your website advertised here, and I must say, it's very nicely done. Nice engine photos too of your engine designs. I just have one question. One your webpage for the HPX-D 30 you state the following: "The HPX-D 30 is an experimental 30lb thrust engine based on the HPX desig...

CNN just reported a magnitude 5 Earthquake somewhere in Northern Alberta , with aftershocks coming a few seconds apart...

...how do you attach the jpeg images directly to the thread? From poking around here it seems that the smaller byte-count files display directly, while the larger ones require the user to download. Can't wait to see your video...that's one BIG motor! You know...I just had a thought...I wonder how c...

While waiting... I decided to "attempt" to add some thrust to my initial motor. Kevin, you've built a very nice looking motor; I can't wait to hear & see it run! Where did you get the basic design? How did you come up with the diameter ratios and lengths between the various components? I noticed yo...