Search found 1032 matches

by steve
Sun Feb 19, 2006 3:32 am
Forum: Off topic forum
Topic: Space Lift Tests Progressing
Replies: 4
Views: 2042

Re: re: Space Lift Tests Progressing

Why in the ocean? Wouldn't the top of a mountain in Africa or South America be better? 6200 MPH!! OK doesn't ribbon usually twist? This may make problems with providing power to the robots (if they use photo cells for power) and could limit their speed. It has to be on the equator since the top of ...
by steve
Sun Feb 19, 2006 3:26 am
Forum: Valved pulsejet forum
Topic: plan #17 Craft plane questions
Replies: 47
Views: 30662

Re: re: plan #17 Craft plane questions

juki48 wrote:oh, by the way, the whole thing is modeled in proE. I just had to have newer drawings to work with.
bleh. I can't stand Pro E, unfortunately it is the only thing my school uses so I have no choice but to use it. compared to Solidworks it is crap.
by steve
Sun Feb 19, 2006 2:56 am
Forum: Valveless pulsejet forum
Topic: Tiny Shark Revisions
Replies: 12
Views: 5931

re: Tiny Shark Revisions

I've allways liked the look of this engine Larry and I really hope you can get it running!
by steve
Sun Feb 19, 2006 2:40 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 165142

re: metal jam jar experiments

the excessive heat changes the way the reynst runs, usually causing the fuel to boil off to quickly and over-richening the mixture untill the point where it just stops running.
by steve
Sun Feb 19, 2006 2:28 am
Forum: Rocket forum
Topic: Level 1 cert. attempt
Replies: 11
Views: 5505

re: Level 1 cert. attempt

The launch today went perfectly on the f25 motor! the only problem came when the rocket landed on asphalt and scraped up my nice paint job. No real physical damage though. I also bought an H128W-M for my Cert attempt which will probably happen at next months launch. I'm kind of sorry I didn't try to...
by steve
Tue Feb 14, 2006 2:38 am
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 165142

re: metal jam jar experiments

yeah, a few members have done that sucessfully. there is still the problem of overheating after long runs, but this can be solved with a water cooling system of some kind
by steve
Tue Feb 14, 2006 2:36 am
Forum: Valveless pulsejet forum
Topic: SO SMALL
Replies: 29
Views: 11754

re: SO SMALL

the question is not weather a pulsejet will run on H2 (cause it definately will!) The question is weather an engine will run on H2 as it is being generated. This adds so many variables to the equasion that I think it might be all but impossible unless you are either very lucky, or very good at calcu...
by steve
Mon Feb 13, 2006 5:51 pm
Forum: Valveless pulsejet forum
Topic: metal jam jar experiments
Replies: 458
Views: 165142

re: metal jam jar experiments

see the soda bottle rocket threads in the rocket section of the forum
by steve
Mon Feb 13, 2006 2:55 pm
Forum: Rocket forum
Topic: Rocket and noise?
Replies: 5
Views: 2986

re: Rocket and noise?

is that total impulse or average?
by steve
Sat Feb 11, 2006 6:33 am
Forum: Valved pulsejet forum
Topic: plan #17 Craft plane questions
Replies: 47
Views: 30662

re: plan #17 Craft plane questions

I must say I am very impressed with the workmanship. It is making me want to finish my tiger jet- need to buy some stainless...
by steve
Sat Feb 11, 2006 6:30 am
Forum: Rocket forum
Topic: Level 1 cert. attempt
Replies: 11
Views: 5505

re: Level 1 cert. attempt

there are no such things as low power certs- you can operate anything up to a "G" size engine without any cert at all.
by steve
Sat Feb 11, 2006 6:28 am
Forum: Valveless pulsejet forum
Topic: SO SMALL
Replies: 29
Views: 11754

re: SO SMALL

I am mostly suprised that it will run over 500 hz on propane. To the best of my knowledge this has never been done before. My best attempt was 687 hz on acetlyene.
by steve
Sat Feb 11, 2006 6:20 am
Forum: Rocket forum
Topic: Level 1 cert. attempt
Replies: 11
Views: 5505

Re: re: Level 1 cert. attempt

Greg O'Bryant wrote:Not bad how high do you expet it to go?
On the F25? probably only 800 to 1000 feet
on the H, at least 3500 and possibly as high as 6000 on an I

some flights made with this model listed at the bottom of this page:
http://www.rocketreviews.com/reviews/ki ... itech.html
by steve
Sat Feb 11, 2006 6:16 am
Forum: Rocket forum
Topic: Level 1 cert. attempt
Replies: 11
Views: 5505

re: Level 1 cert. attempt

by steve
Thu Feb 09, 2006 6:44 pm
Forum: Rocket forum
Topic: help in designing a rocket
Replies: 20
Views: 9227

re: help in designing a rocket

where are you going to school? I assumed Embry Riddle because you kept mentioning guys from NASA