Quote:
Originally posted by soundman
The trawler boys in NT have a lover budget amusement. A length of 50mm plastic tube & an end cap, some norska or brut33 and a sack of spuds
Gas powered spud cannon.
Aparently It was getting a bit serious up there for a while!!!
I've got one I use to frighten the starlings out of my fruit trees (there's a tree about 1km away that houses about 200 of the greedy little buggers) for bird scaring purposes I just push a ball of crumpled paper into the barrell, load a handful of coarse sand in and then another paper ball. BOOM!! no birds for a day or two. To get more power use a piece of 50mm drain pipe glued into a 100mm LIT (level invert taper) which is a cone shaped 50/100 adaptor, glue a threaded end cap assembly onto this with a small hole drilled into it to suit a gas igniter. Load missile into barrel (spuds are good) by cutting a wad with the barrel itself and push down to base of barrel with stick. Unscrew cap and spray a dose of cheap hair spray in (found this to be the best fuel) you'll have to experiment with the dose to get the right fuel/air mixture. Quickly screw cap back on, aim at cat/birds/trawler pull trigger. Don't use acetylene whatever you do, a mate tried it and was off work for 2 weeks, it blew up in his hand. Also if you use it a lot use the green (high pressure) glue rather than the blue. Also destroy and discard after a few hundered shots as the PVC will go brittle over time and you don't want to have all those shards of PVC picked out of your hands. Hmmm, maybe I shouldn't have posted all this??