Search found 3549 matches

by Bruno Ogorelec
Thu Jul 16, 2009 6:06 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 154612

Re: metal jam jar experiments

Aw, come on, man, relax. Whay are you so thin-skinned? I did not say you did. I said devoting oneself to research of jam jars without studying Reynst would be reinventing the wheel. You said you did study Reynst. Good! You are nor reeinventing thewheel then. I commended you for that. Jesus, I should...
by Bruno Ogorelec
Thu Jul 16, 2009 5:43 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 154612

Re: metal jam jar experiments

No, no, expressing it is not Quixotic, of course. Reinventing the wheel would be. I am glad to hear that you are looking at Reynst. No one else seems to be doing it.
by Bruno Ogorelec
Thu Jul 16, 2009 5:34 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 154612

Re: metal jam jar experiments

I'd say it is somewhat Quixotic to dabble at jam jars ith serious intentions without first studying the efforts of F.H. Reynst, the inventor of the jam jar 'engine' and the only man ever to have built it in industrial sizes and studied its functioning in a properly scientific manner. One should try ...
by Bruno Ogorelec
Wed Jul 01, 2009 1:42 pm
Forum: Off topic forum
Topic: Martin backpack flying machine improves
Replies: 2
Views: 1317

Re: Martin backpack flying machine improves

Just saw your picture of your jet pack! Woohoo - Bruno...really loud, really dangerous...can I have first go? Hahahahaha... Sure. The technology is simple and existing; nothing very adventurous. Just two big pulsejets blowing into a common torus, so that, if one quits, the thrust falls but does not...
by Bruno Ogorelec
Wed Apr 29, 2009 6:35 am
Forum: Off topic forum
Topic: Martin backpack flying machine improves
Replies: 2
Views: 1317

Martin backpack flying machine improves

This is beginning to look good:

http://www.youtube.com/watch?v=52tPDlwN ... r_embedded

It is still too bulky.

I am still convinced my two-pulsejet pack with the siamesed toroidal thrust augmenter would beat it. (Though it does look a little too optimistic now in the bulk stakes. :D )
by Bruno Ogorelec
Thu Mar 26, 2009 11:52 pm
Forum: Jet Vehicles, All Types
Topic: Amazing jet gyroplane
Replies: 5
Views: 2453

Re: Amazing jet gyroplane

Mike Everman wrote:Pretty sure it wouldn't have attained "flying coffin" status.
Not with those Glueys in the back, that's for sure. But, with a very high bypass turbofan, why not?
by Bruno Ogorelec
Thu Mar 26, 2009 1:37 pm
Forum: Jet Vehicles, All Types
Topic: Amazing jet gyroplane
Replies: 5
Views: 2453

Re: Amazing jet gyroplane

Well, even the seller is thankfully aware of that and suggests a thorough re-engineering to anyone who would fly it.

What a spectacular waste of aluminum and fasteners, not to speak of work hours...
by Bruno Ogorelec
Thu Mar 12, 2009 7:39 pm
Forum: Unconventional, Multi-Mode and Hybrid Jets
Topic: HELP!
Replies: 11
Views: 3098

Re: HELP!

Larry, you are right. I posted off the top of my head, what occurred to me as I was reading the question. Lower-half mirror is of course the way to go. As I write this, what occurs to me is an alternative -- a closed-loop helium system in which the central tube is a gas heater and the shielded area ...
by Bruno Ogorelec
Thu Mar 12, 2009 7:56 am
Forum: Valveless pulsejet forum
Topic: "Thunderchine" 55 lb thrust pulsejet plans
Replies: 142
Views: 32858

Re: "Thunderchine" 55 lb thrust pulsejet plans

Haven't visited in ages, and this is a very pleasant surprise. Great-looking engine. Congratulations!
by Bruno Ogorelec
Thu Mar 12, 2009 7:44 am
Forum: Unconventional, Multi-Mode and Hybrid Jets
Topic: HELP!
Replies: 11
Views: 3098

Re: HELP!

You might consider a transparent zeppelin, with wall panels functioning as lenses to concentrate sunlight onto a tubular central backbone. The central tube, which might also act as a structural member, would function as a ramjet. Air enters the central tube at the nose, gets heated in the tube and b...
by Bruno Ogorelec
Thu Mar 12, 2009 7:34 am
Forum: Off topic forum
Topic: UK Trip in April
Replies: 10
Views: 1413

Re: UK Trip in April

I might pop over if I'm not bankrupt by then yet. I'll probably stay in Amersham. Maybe rent a car, but I do dread driving on the sinister side.
by Bruno Ogorelec
Thu Mar 12, 2009 7:27 am
Forum: Valved pulsejet forum
Topic: Tenney's rotary Dynajet
Replies: 15
Views: 2774

Re: Tenney's rotary Dynajet

sockmonkey wrote:Once you have the compressor does it still really need to pulse instead of burn steadilly?
'Need' misses the point. You 'want' it to pulse. I mean, what's the point, otherwise? You'd just get a primitive turbojet.
by Bruno Ogorelec
Wed Mar 04, 2009 7:03 am
Forum: Valved pulsejet forum
Topic: Tenney's rotary Dynajet
Replies: 15
Views: 2774

Re: Tenney's rotary Dynajet

Mike Everman wrote:Hey Bruno! Just hey!
Hey right back at you. How's things?
by Bruno Ogorelec
Tue Mar 03, 2009 7:50 am
Forum: Valved pulsejet forum
Topic: Tenney's rotary Dynajet
Replies: 15
Views: 2774

Re: Tenney's rotary Dynajet

Hello again everyone. I was looking at the design and i could just imagine what a compressor on that shaft could do, it would have to be geared to get up to spooling speed, maybe with a planetary gear set. It would essentially be a supercharged pulse jet (hmm i wonder how the cycle would look?) :sh...