Many many moons ago, whilst at a Civil War reenactment, someone was going round collecting everyones baked-bean tins from dinner. Intrigued, we went to see what they wanted with them, and so he showed us....
Here is a short video showing a launch...
beercan.wmv: Launching Video
You will need:
7 baked bean tins (not these modern ones, they
Some electrical or duck tape
A can opener
A nail, or drill, or something to make the touch-hole
Some petrol lighter fluid
Lots of friends to eat the beans!
Eat the beans
Half-cut 3 of the tins bottoms to make the baffles
Fully remove the bottoms from 3 of the tins - these are the launch tube
Make a small hole (about 2-3mm across) mid-way up the side of the last tin - this is the combustion chamber, and touch-hole
Join all the tins together using the tape - make sure they are tightly joined
The combustion chamber goes at the bottom
The baffles should be offset from one another
The launch tube tins are attached to the top of the baffles
Get a beer can, or coke can
Put a small squirt of petrol (and I mean small - otherwise the mixture is too rich, and it doesn't work) into the touch-hole
Swing the tubes at arms length upside down to get the fuel to vaporise
Place a can in the end of the tube until it falls down the baffles
Light the touch-hole with a lighter - it may take a while, but when it goes.....
Here are some pictures of the launcher in action - I still hope (one day!) to get it launching - but alas, as yet....
The completed launcher:
A view down the barrel:
Sam lighting the Launcher:
Charley spinning the Launcher for max-combustion:
Charley lighting the Launcher: