2004-02-14 - Pulsejet History Well and Truly Made
Moderator: Mike Everman
no, just a tube pointing 90°
to start it, I begin with a very low ammount of air and gas, otherwise I wont get any explosions.
once it starts roaring at low freq, I slowly increase the ammount of air while doing the same with the gas.
once the air and gas flow is enough, the freq will suddenly go higher (and so the noise), increase a bit the fuel flow and slowly remove the air supply, it should be running by itself now
Pablo
to start it, I begin with a very low ammount of air and gas, otherwise I wont get any explosions.
once it starts roaring at low freq, I slowly increase the ammount of air while doing the same with the gas.
once the air and gas flow is enough, the freq will suddenly go higher (and so the noise), increase a bit the fuel flow and slowly remove the air supply, it should be running by itself now
Pablo
I have a video where you can see how I start it
http://www.geocities.com/pulsejetweb/
the video link is the word "descargar"
(geocities doesnt work with links to files from other servers)
Pablo
http://www.geocities.com/pulsejetweb/
the video link is the word "descargar"
(geocities doesnt work with links to files from other servers)
Pablo
Pulsejet History Well and Truly Made, March and the 130R PJ
Gentlemen
Your first post stated:
1. “Testing will resume in March, when we plan to measure the QD-80's TSFC and collect audio-video recordings of the operating engine for full analysis.â€
Your first post stated:
1. “Testing will resume in March, when we plan to measure the QD-80's TSFC and collect audio-video recordings of the operating engine for full analysis.â€
Last edited by Dave on Mon Mar 08, 2004 11:59 am, edited 1 time in total.
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Pablo,
I like the Kite jumping pics. I wanted to try this as a child (25 years ago) but no kites big enough were available. I was going to make a kite from one of my mothers bed sheets but she caught me... oww!
Cheers,
Wilson.
I like the Kite jumping pics. I wanted to try this as a child (25 years ago) but no kites big enough were available. I was going to make a kite from one of my mothers bed sheets but she caught me... oww!
Cheers,
Wilson.
Got groups? Get PGO! http://www.personalgroupware.com
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Scaling up?
Milisavjavic,
Thanks for that extra info.,well put as, ever.
Can your discoveries be used to scale up to make a valveless p.j. producing ca.100kgf.thrust(220lbsf.)?.
Thanks in advance,Ray.
Thanks for that extra info.,well put as, ever.
Can your discoveries be used to scale up to make a valveless p.j. producing ca.100kgf.thrust(220lbsf.)?.
Thanks in advance,Ray.
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It sounds as good as the X-Jet, but I haven't seen the numbers played on the table. For now a pile of poker chips is just sitting in the middle of the table, and nobody seems to want them. Fame and fortune just sitting there.milisavljevic wrote:Hello Mark, Does it matter? And if so, why? Do I need to prove something to you? Anyone? ;-)
M.
Mark
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Thanks Mark I knew I had left them somewere:-)Mark wrote:It sounds as good as the X-Jet, but I haven't seen the numbers played on the table. For now a pile of poker chips is just sitting in the middle of the table, and nobody seems to want them. Fame and fortune just sitting there.milisavljevic wrote:Hello Mark, Does it matter? And if so, why? Do I need to prove something to you? Anyone? ;-)
M.
Mark
Viv
"Sometimes the lies you tell are less frightening than the loneliness you might feel if you stopped telling them" Brock Clarke
Viv's blog
Monsieur le commentaire
Viv's blog
Monsieur le commentaire
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100kgf. purpose
Apologies for misspelling your name ,Milisavljevic.
I will continue to write it in full,it keeps my brain working!.
To answer your question;well I entertain the fantasy of building a 2000kg. total mass aeroplane using a valveless p.j. for thrust.
So, the minimum thrust I'll need is about 2x 100kgf.
I suspect I'll probably need double that for safe performance.
Best be over than under-powered.
It's all theoretical ,if the licensing authorities are reading this.
Ray.
I will continue to write it in full,it keeps my brain working!.
To answer your question;well I entertain the fantasy of building a 2000kg. total mass aeroplane using a valveless p.j. for thrust.
So, the minimum thrust I'll need is about 2x 100kgf.
I suspect I'll probably need double that for safe performance.
Best be over than under-powered.
It's all theoretical ,if the licensing authorities are reading this.
Ray.
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April already
Milisavljevic and Hinote,
Did you mean that you'd be publishing results in march, or just recommencing your p.j. research in March.?
I recall you promising us something very interesting from the next reiteration of your research.Thanks for the excellent work. Ray.
Did you mean that you'd be publishing results in march, or just recommencing your p.j. research in March.?
I recall you promising us something very interesting from the next reiteration of your research.Thanks for the excellent work. Ray.
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Re: April already
Whatever the original intent was, the current status of the project is on temporary hold.Ray(in England) wrote:Milisavljevic and Hinote,
Did you mean that you'd be publishing results in march, or just recommencing your p.j. research in March.?
I recall you promising us something very interesting from the next reiteration of your research.Thanks for the excellent work. Ray.
The engine has been disassembled after the semi-disastrous hot shutdown of the QD and the resulting deformation. Parts are in hand for repairs.
I'm reorganizing my PJ construction effort, with new welding equipment arriving soon to try and keep costs down (I contracted for expensive TIG welding on the QD--a practice I can't afford to continue!) .
Also, the unreliable hydraulic system on the thrust stand has been replaced with a spring and cable system.
I have several other developments to pursue related to the current project, so things are NOT standing still.
Meanwhile, M. has gone MIA (he's a very busy person).
Stay tuned for more PJ progress in California.
Bill H.
Acoustic Propulsion Concepts