Page 1 of 1

interesting motar-type design

Posted: Sun Nov 16, 2008 1:29 pm
by FishBoy
Just found this & I thought it was pretty cool, anyone got any ideas on how it might work?

[youtube][/youtube]

Posted: Sun Nov 16, 2008 1:54 pm
by Demon
I dont know at all, but it doesn't looks very powerful...

There is an white cylinder between the chamber and the barrel, maybe a valve?At 0:20

Posted: Sun Nov 16, 2008 4:42 pm
by jor2daje
I have seen one of these before i think it uses vaporized gasoline with compressed air as a propellant. Im not sure but it might be on instructables.

Posted: Sun Nov 16, 2008 5:34 pm
by MrCrowley
Look at his other videos, there's something on the side:
http://youtube.com/user/Rai41478

Posted: Sun Nov 16, 2008 5:54 pm
by newbmatic

Posted: Sun Nov 16, 2008 6:51 pm
by starman
This actually looks like a gasoline "hybrid", believe it or not using a soda bottle as it's chamber and "propulsion rocket".

For all the effort and gizmos inside that thing, it appears to be greatly inefficient.

Posted: Sun Nov 16, 2008 8:05 pm
by jor2daje
Yeah it sorta looks like it uses the friction of the soda bottle and the pipe to make a sort of ish burst disk/chamber combo.

Posted: Sun Nov 16, 2008 8:29 pm
by Lentamentalisk
If I were to do this, I would use the bottle as a burst disk, and screw it on, rather than just friction fit. Just fill it up to a 5x mix, and ignite it. That would get you actual range, as opposed to theirs, which is just a badly designed bottle rocket.