http://www.youtube.com/watch?v=pLLEW...4fAUAAAAAAAAAA
Printable View
What a hoot!
Nice p38:cool: Saw it last time posted. Have had a wee play with cannons myself albeit a bit smaller and only firing paper wads.
Any reason you couldn't use say a shotgun powder to get above speed of sound?
Love the way the ground in front keeps smoking after the magpie shot.
Cool:)
I would not advise using anything other than the correct grade of Black Powder veitnamcam.Quote:
Originally Posted by veitnamcam
Anything else may turn the cannon into what might amount to the equivelent of a pipe bomb.
I'm kinda addicted to breathing at the moment, gotta do every few munites.
Loading this cannon with anything other than BP might cause this addiction to instantly cease. :(
I made a lobbing cannon with the remaining peice of 3" steel ......... it seems Mortars are not quite legal in NZ yet but lobbing cannons are all good :wtfsmilie:
Shoots the golf ball about 200m and about 100m into the air.
Ive almost finished making a mould to cast some lead or zinc balls to try out how they go.
I'll post a vid of that soon.
Cheers
Pete
Thats farken cool, Ive oftened wondered about making a cannon like your one Pete :)
saw quite a cool one on a snipit of Nitro Circus the other night, blew the doors off an old yank tank :pacman:
:D I see your point but I would have thought it would be relatively simple to work out a maximum safe pressure if you knew steel type and thickness.But actually measuring that pressure would pose a problem:faill:Quote:
Originally Posted by P38
A Bloke I know has a little cannon like that he fires round sinkers out of it