Search found 67 matches

by vhautaka
Mon Jan 12, 2004 10:35 pm
Forum: Valveless pulsejet forum
Topic: New engine -- SP 14
Replies: 95
Views: 42383

Well, I don't blame them. I was closely involved in the process of building and testing of six or seven different pulsejets of relatively novel layout. Each and every one was incredibly frustrating. Only two resulted in a tolerably well running engine. Are these results on a webpage somewhere? Puls...
by vhautaka
Sun Jan 11, 2004 9:12 pm
Forum: Valveless pulsejet forum
Topic: New engine -- SP 14
Replies: 95
Views: 42383

And, if the hair was on the palms, it should not have grown there in the first place! Nah, it grows back soon enough :) Can’t say I understand anything. Can't blame you. What I tried to explain was, I'll just start with the simplest possible annular configuration with the simplest rules (ie. stra...
by vhautaka
Sun Jan 11, 2004 7:31 pm
Forum: Valveless pulsejet forum
Topic: New engine -- SP 14
Replies: 95
Views: 42383

Oh my, it's time I introduce myself shortly. I didn't realize that even my real name wasn't visible anywhere. Ville Hautakangas, 26 years, Helsinki, Finland. Have a history of mental illness concerning rockets and all sorts of flame & noise, and never hurt anything but my ears (probably that heavy m...
by vhautaka
Fri Jan 09, 2004 10:44 pm
Forum: Valveless pulsejet forum
Topic: straight lockwood
Replies: 18
Views: 10091

The problem is, although you can replace the nozzle and chamber with straight pipes, the chamber/tailpipe transition should be smaller than the nozzle.. and the tailpipe opening larger. That's what makes it a Lockwood. There's a Lockwood with just a short cone in the end of the tailpipe, here: http:...
by vhautaka
Fri Jan 09, 2004 9:41 pm
Forum: Valveless pulsejet forum
Topic: New engine -- SP 14
Replies: 95
Views: 42383

Sorry, Mike

Ok, your post contained the same idea but the drawing was lot nicer. :)
by vhautaka
Fri Jan 09, 2004 9:35 pm
Forum: Valveless pulsejet forum
Topic: New engine -- SP 14
Replies: 95
Views: 42383

Just a minute!

Bruno, did you read what I just said up there? I can't blame you... perhaps I had too much to say to express it in readable English. :) But, about enhancing the donut vortex with the returning hot gas? Just turn your engine inside out one more time. This is what I meant way up there. Straight, or at...
by vhautaka
Fri Jan 09, 2004 10:53 am
Forum: Valveless pulsejet forum
Topic: New engine -- SP 14
Replies: 95
Views: 42383

I think we're on to something... nice!

New user on the forum, just lurked a coupla days. I got really interested in pulsejets only after I ran into Bruce's very comprehensive and interesting site about a year ago. "Heck, I can build one of those and now THAT seems an affordable way to get a kick in the pants / to get some fireballs and g...