Search found 11 matches

by isprins
Tue Oct 16, 2012 12:06 pm
Forum: Buy and Sell
Topic: For sale in Norway
Replies: 0
Views: 1576

For sale in Norway

by isprins
Mon Jul 14, 2008 1:34 pm
Forum: Off topic forum
Topic: DIY drones
Replies: 0
Views: 707

DIY drones

http://diydrones.ning.com/ A interesting forum.
by isprins
Mon Jul 14, 2008 1:18 pm
Forum: Jet Vehicles, All Types
Topic: a 100$ Autopilot
Replies: 0
Views: 1410

a 100$ Autopilot

http://diydrones.ning.com/profiles/blog/show?id=705844%3ABlogPost%3A35640 From the page: Here's what it is: A custom PCB with an embedded processor (ATMega168) combined with circuitry to switch between RC control and autopilot control (that's the multiplexer/failsafe, otherwise known as a "MUX"). Th...
by isprins
Wed Jun 25, 2008 9:51 pm
Forum: Pressure jet forum
Topic: is it possible to by a pressure jet ?
Replies: 11
Views: 4168

Re: is it possible to by a pressure jet ?

Yeap ... Obviously, I was sleeping and missed on this one ... :? Anyway and to answer this question ... I am looking for a pressure jet in the 15 to 25 lbs thrust range, it must be farly compact and tested to run. And complete with ignition. I dont have the skills to make one,or the tools, and i am...
by isprins
Wed Jun 11, 2008 9:34 pm
Forum: Pressure jet forum
Topic: is it possible to by a pressure jet ?
Replies: 11
Views: 4168

is it possible to by a pressure jet ?

I am looking for a pressure jet in the 15 to 25 lbs thrust range, it must be farly compact and tested to run. And complete with ignition. I dont have the skills to make one,or the tools, and i am a bit lazy.

Does anyone know where i can get hold of one ?
by isprins
Wed Jun 11, 2008 9:08 pm
Forum: Pressure jet forum
Topic: Pulseramjet
Replies: 42
Views: 19673

Re: Pulseramjet

( luc )
wow, that's a quite impressive thrust-to weight ratio. How mutch will a 25 lbs thrust unit cost ?
by isprins
Wed Jun 11, 2008 1:00 pm
Forum: Tools and Construction
Topic: ceramic coating
Replies: 1
Views: 1017

ceramic coating

I think that it should be possible to apply a ceramic coating to a pulsejet engine, ceramic coatings are used on jet turbines, and on piston crowns. http://www.industrialheating.com/Articles/Feature_Article/BNP_GUID_9-5-2006_A_10000000000000198730 http://www.gofastnews.com/board/engine-technology/70...
by isprins
Tue Jun 10, 2008 10:55 am
Forum: Tools and Construction
Topic: Suppliers of 321 Stainless
Replies: 4
Views: 6338

Re: Suppliers of 321 Stainless

It is altso possible to find a great deal of stainless tubing at your local metal recicler/scrapheap. There are loads of 316SS at my local scrappy, the only trouble is that it can be entangled in to other stuff, but with some "frendly" persuation and some swearing it is possible to untangle the bits...
by isprins
Tue Jun 10, 2008 10:40 am
Forum: Tools and Construction
Topic: Is a lathe a good thing?
Replies: 9
Views: 3028

Re: Is a lathe a good thing?

Of course. You can do a LOT of things with a lathe. You can, cut treads, mill, drill, flare end of tubes + ++.... A lathe that has the possibility of flowing cutting fluid is wery nice to have. It should altso have different sets of chucks. I know that a good deal of older lathes are often sold chea...
by isprins
Mon Jun 09, 2008 5:17 pm
Forum: Valveless pulsejet forum
Topic: valveless pulsejet features
Replies: 1
Views: 677

valveless pulsejet features

I suggest that a valveless engine should have these features: easy start( no need for compressed air or blower) good fuel economy good compression possible to start without a spark plug ( show a burning rag soaked in fuel into the combustion chamber, and turn on the fuel flow ? ) feel free to post a...
by isprins
Mon Jun 09, 2008 4:46 pm
Forum: Valved pulsejet forum
Topic: tesla valve
Replies: 1
Views: 1562

tesla valve

Has anyone ever tried to use a tesla valve?