Search found 3549 matches

by Bruno Ogorelec
Tue Oct 14, 2003 4:19 am
Forum: Tools and Construction
Topic: Flapping flight or the Ornithopter
Replies: 2
Views: 2240

ornithopters

Well, it's relevant to the forum nasmuch as I know of at least one US company to have switched from pulsejets to flapping wings. People I used to correspond with -- who worked on the development of micro-miniature pulsejet engines etched from quartz crystals -- have switched away to concentrate on f...
by Bruno Ogorelec
Mon Oct 13, 2003 1:13 pm
Forum: Valveless pulsejet forum
Topic: Proposed Design - 'Reflector Bucket' Valveless Pulsejet
Replies: 19
Views: 11333

'Reflector Bucket' Valveless Pulsejet

Larry, I don't get it. I mean, I don't get several things. If a small amount of gas is supposed to be reflected immediately, what happens with the rest of the gas that blows out of the intake? If the reflected blow hits back at the chamber _followed_ by fresh air, what is it that gets usefully compr...
by Bruno Ogorelec
Sun Oct 12, 2003 7:26 am
Forum: Valved pulsejet forum
Topic: Clam baker
Replies: 18
Views: 10796

Re: Clam baker

Well worth $ 850.- (incl. postage and handling) I think. The 8-inch Solar was one of the three or four 'standard' US military pulsejet engines of the 1950s. Very well developed. I'd love to have one. I'd hate to see it go up in flames, driving a misguided missile.

Bruno
by Bruno Ogorelec
Sat Oct 11, 2003 9:33 pm
Forum: Valveless pulsejet forum
Topic: Proposed Design - 'Reflector Bucket' Valveless Pulsejet
Replies: 19
Views: 11333

>I expect that experimentation would lead to a longer bucket than I have shown. Some of it would depend on how much gap is really effective between the intake and the bucket. Remember also that I'm relying on the reflected blast to drag in a lot of fresh air from around the gap. ---------- Larry, I ...
by Bruno Ogorelec
Thu Oct 09, 2003 5:16 pm
Forum: Valved pulsejet forum
Topic: For Your Comments & Criticism: Proposed Pulse Turbine
Replies: 14
Views: 7130

Re: Turbine picture

He he , I have been changing the upload function many time the last 3 day , that is why some time you have been seeing the picture , and other times you had to download it !! Bruno , please ask if you have any problems using the forum!! ---------- Kenneth, all the problems are in my head and you can...
by Bruno Ogorelec
Thu Oct 09, 2003 8:06 am
Forum: Ramjet forum
Topic: Meteor missile (the new ramjet one)
Replies: 7
Views: 5861

Intakes

Viv, I don't think you can judge the intake configuration from the picture. It may have a variable duct geometry with internal vanes moving this way and that way to change the dict profile. This is a common feature in supersonic intakes.

Bruno
by Bruno Ogorelec
Thu Oct 09, 2003 8:02 am
Forum: Valveless pulsejet forum
Topic: Reynst Drum
Replies: 7
Views: 4839

Sealing

Michael,

I think you should improve the sealing. I doubt you can induce the kadenacy breathing with the inevitably leaky boddom of the thing. Try sealing it with clay or something.

Bruno
by Bruno Ogorelec
Thu Oct 09, 2003 7:54 am
Forum: Valved pulsejet forum
Topic: For Your Comments & Criticism: Proposed Pulse Turbine
Replies: 14
Views: 7130

Turbine picture

Well, amazingly enough, as viewed from here that actually seemed to work! It came out not as an embedded image, though [like my earlier shot of Maggie] but rather as a 'downloadable' image. Somebody let me know if you can see it that way, too! L Cottrill --------- Well, it looks embedded on my scre...
by Bruno Ogorelec
Sat Oct 04, 2003 7:36 am
Forum: Valved pulsejet forum
Topic: Congratulations
Replies: 14
Views: 9554

I am a conservative old fart and hate change in principle. But, if it will make the forum better, I'll go along. I just hope I'm intelligent enough to get the hang of how it's used.

Bruno