Search found 286 matches

by Ghrey
Sun Mar 29, 2009 8:00 am
Forum: Valveless pulsejet forum
Topic: Heat resistant Material
Replies: 2
Views: 968

Re: Heat resistant Material

In a word yes.

Tungsten is far to heavy and hard to work to be of much use as the main material of a Pulse jet.

304 is probably not the best, but it is also not the worst.
by Ghrey
Mon Mar 16, 2009 6:35 am
Forum: Valveless pulsejet forum
Topic: Interested? No.2 (in liquid)
Replies: 13
Views: 4742

Re: Interested? No.2 (in liquid)

I will see what I can do, I have something promising in this general area, but my time is limited.

The prototype, made many years ago, was an excellent flame thrower, More work is needed.

I will post again when I have More.
by Ghrey
Sun Mar 15, 2009 8:06 am
Forum: Valveless pulsejet forum
Topic: Interested? No.2 (in liquid)
Replies: 13
Views: 4742

Re: Interested? No.2 (in liquid)

What would the duration on this contest be?

Or perhaps better phrased; Do you have an end date in mind?
by Ghrey
Thu Feb 19, 2009 8:59 am
Forum: Valveless pulsejet forum
Topic: "Thunderchine" 55 lb thrust pulsejet plans
Replies: 142
Views: 53928

Re: "Thunderchine" 55 lb thrust pulsejet plans

It was a tolerances question. You have in fact supported me. Thank you for your response. Explanation: The build would NOT have been in metal, But your response indicates zero tolerance at the joints, and my build method will not support right angle joints, or rather safely support them. Thanks again.
by Ghrey
Thu Feb 19, 2009 6:13 am
Forum: Valveless pulsejet forum
Topic: "Thunderchine" 55 lb thrust pulsejet plans
Replies: 142
Views: 53928

Re: "Thunderchine" 55 lb thrust pulsejet plans

Was I, some how unclear?
by Ghrey
Wed Feb 18, 2009 8:08 am
Forum: Valveless pulsejet forum
Topic: "Thunderchine" 55 lb thrust pulsejet plans
Replies: 142
Views: 53928

Re: "Thunderchine" 55 lb thrust pulsejet plans

And now from left field....


What is the maximum allowable radius for each joint?

Picture the jet made from a contiguous piece of material if that helps...


Now franticly clearing shop space...
by Ghrey
Sun Feb 15, 2009 8:08 am
Forum: Valveless pulsejet forum
Topic: "Thunderchine" 55 lb thrust pulsejet plans
Replies: 142
Views: 53928

Re: "Thunderchine" 55 lb thrust pulsejet plans

It does seem "Eloquent"


I will likely have questions.


I am making progress on clearing shop space...
by Ghrey
Fri Feb 13, 2009 7:53 am
Forum: Valveless pulsejet forum
Topic: Back with the BIG LADY
Replies: 112
Views: 13906

Time

Time is hardly relevant in my world CONTENT is however quite relevant.....


All the best...
by Ghrey
Sun Jan 25, 2009 7:53 am
Forum: Valveless pulsejet forum
Topic: FWE with increased Throttle Range?
Replies: 105
Views: 18521

Re: FWE with increased Throttle Range?

.:.


51809


.:.
by Ghrey
Sat Jan 24, 2009 9:17 am
Forum: Valveless pulsejet forum
Topic: The wedding of VPJ and GEET
Replies: 4
Views: 1218

Re: The wedding of VPJ and GEET

I have considered such schemes in the past, I have neither the time nor equipment currently to execute any designs so derived.

FYI; Careful selection of materials is a must for the hotter parts of any thermal capture system...



.:. More L8R in another Thread .:.



;-)
by Ghrey
Tue Jan 06, 2009 4:34 am
Forum: Valveless pulsejet forum
Topic: Back with the BIG LADY
Replies: 112
Views: 13906

Re: Back with the BIG LADY

Yah I figured. &Ic. now

Good heavens this thread has exploded, good reading.
Getting Ideas...



Cheers.

P.S. Excavation continues out in the shop.
by Ghrey
Sun Jan 04, 2009 8:21 am
Forum: Ramjet forum
Topic: 50 mph ramjet???
Replies: 30
Views: 16074

Re: 50 mph ramjet???

larry cottrill wrote: If there is any interest in this, I could try to draw up a sort of "slow ramjet version" of the design I've just described.

L Cottrill

Yes there is interest. (!)


At least for my part...
by Ghrey
Sat Jan 03, 2009 9:15 am
Forum: Valveless pulsejet forum
Topic: Back with the BIG LADY
Replies: 112
Views: 13906

Re: Back with the BIG LADY

Hmmmm

120mm or 102mm, or did I miss something.


I probably missed something.


Happy New Year M.
by Ghrey
Thu Dec 25, 2008 9:04 am
Forum: Off topic forum
Topic: Merry Christmas.
Replies: 0
Views: 1118

Merry Christmas.

Merry Christmas.
by Ghrey
Wed Dec 24, 2008 11:17 am
Forum: Valveless pulsejet forum
Topic: Metal Fume Fever
Replies: 9
Views: 4536

Re: Metal Fume Fever

You just can not breathe the stuff. If you can not make it safe do not use that material. Also do not put gatorade or other electrolyte replacement drinks in old-fashioned galvanized water cans. We ( my Wife and I ) did this once, bad case, not fatal, of poisoning from the metal stripped from inside...