Search found 286 matches

by Ghrey
Fri Nov 12, 2010 6:40 am
Forum: Valveless pulsejet forum
Topic: beginers valveless jet engine
Replies: 11
Views: 6613

Re: beginers valveless jet engine

Pipewood.
by Ghrey
Sun Aug 08, 2010 8:53 am
Forum: Valveless pulsejet forum
Topic: The M25
Replies: 27
Views: 12516

Re: The M25

We have lift off...

Seriously; it is nice to see a strong runner in the smaller size range. Nice work.
by Ghrey
Tue Jul 06, 2010 6:04 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 183101

Re: metal jam jar experiments

Ok I finally broke down and made a glass version ( (s) actually ) of my little can that I have been calling ThermoJam, lousy fuel renders the tests less than beautiful, but I shot film ( well digital video... ) Any way it can all be found here http://www.youtube.com/user/dszqujd#p/u More later.
by Ghrey
Sun Jun 13, 2010 4:27 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 183101

Re: metal jam jar experiments

I make it a habit NOT to talk too much about what I am using this stuff for when I am buying parts.....

It's just simpler...

More soon.
by Ghrey
Sun Jun 13, 2010 3:07 am
Forum: Valveless pulsejet forum
Topic: What happened here!?!?!
Replies: 13
Views: 4091

Re: What happened here!?!?!

I sure have not been happening here.... So occupied with other things, have not even looked lately. I have been working on something of interest SLOWLY..... Wile not by any means considering my self an expert or even a good source for info.... I do not lack enthusiasm Just Time.... But I suspect tha...
by Ghrey
Wed May 12, 2010 6:36 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 183101

Re: metal jam jar experiments

Mine runs for a wile on good fuel as well. I was a bit surprised that it ran at all on old half died PVC primer, but it did, all be it briefly. Just for the record; 1x 2" dia. x 3" long pipe nipple, 2x 2" pipe caps, one of the caps has a 31/64" dia. hole in the center. A simple build. Yours is prett...
by Ghrey
Tue May 11, 2010 9:36 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 183101

More Metal silliness

The start of a little experiment

http://www.youtube.com/watch?v=vurWsyQIvZ8

Not impressive per se but amusing.

Yah I mumble to much...
by Ghrey
Sat May 01, 2010 8:17 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 183101

Re: metal jam jar experiments

That first one has jumped a few times ( and then tipped over ), fun but panic causing. Nitro fuel is nuts.... Have not gotten a good run out of short stuff yet, but that is owing I suspect to the short tail and a design variation... I will post again then I have a completed tail and some run time on...
by Ghrey
Sat Apr 24, 2010 10:35 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 183101

Re: metal jam jar experiments

I was fiddling around with my new camera last night (1am ish ) with some old, slightly corrupt PVC primer.

Results .... such as they are..... Here ... .. ... http://www.youtube.com/watch?v=aiSpdbpKWcA

Cheers.
by Ghrey
Mon Apr 19, 2010 3:07 am
Forum: Valveless pulsejet forum
Topic: Building a 3 LB thermojet from plans
Replies: 11
Views: 6739

Re: Building a 3 LB thermojet from plans

Welcome to an addictive and loud hobby. You have a nice start.

If you have not already, I strongly recommend reading the safety information here viewtopic.php?f=3&t=4950.

Cheers.
by Ghrey
Mon Apr 05, 2010 3:31 am
Forum: Valved pulsejet forum
Topic: Z Jet help please
Replies: 2
Views: 1864

Re: Z Jet help please

Just a forum FYI there is a buy sell trade forum http://www.pulse-jets.com/phpbb3/viewforum.php?f=19 and this post is probably better placed there. As to value..... Hmmmm. No Idea actually. Try scanning COMPLETED auctions on ebay. If any comparable items have sold recently that would be a start. Lon...
by Ghrey
Sun Mar 28, 2010 9:55 am
Forum: Valveless pulsejet forum
Topic: Design a better augmenter.. No generic formulas needed.
Replies: 7
Views: 2807

Re: Design a better augmenter.. No generic formulas needed.

Wow that's really cool. Thank you for that.

Wonder if I can capture a pic. of flame behind the tiny little things I am currently fiddling with....
by Ghrey
Wed Feb 10, 2010 6:18 am
Forum: Valveless pulsejet forum
Topic: Big Linear FWE for a Paying Client
Replies: 60
Views: 20026

Re: Big Linear FWE for a Paying Client

Our current temp is 42F and we expect 33F over night, with a little more rain showing on radar. It has been wet. Sad thing is, it is coming your way....

Except for fixing leaking roofs, I have been shut down...

Hope you find a good window in the weather for testing.

Cheers
by Ghrey
Tue Feb 09, 2010 2:22 am
Forum: Valved pulsejet forum
Topic: Back to Basic
Replies: 90
Views: 19448

Re: Back to Basic

Hmmmmmm.


And I thought that the velocity of the acting thrust came in at some point.

Or have I ( yet again ) missed something.

I should sleep some time this week.....