Tennis Ball Mortar… FAIL!
This as a quick attempt to build a simple ghetto tennis ball mortar out or tin cans and duct tape.
One can for the combustion chamber and two for the barrel. The damn thing didn’t work. It was hard to ignite and when it did ignite, many flames came through the barrel without lifting the tennis ball. I guess the combustion chamber was too small… bummer!
In a desperate attempt of getting some fun out of this lame mortar I blocked the top of the barrel with a ball of newspaper wrapped in tape. In other words, I incresed the combustion chamber length b a factor of three and removed the barrel. Then I had absolutely no troubles with ignition and shots popped quite loud.
I used acetone as fuel, its not so good. Too irregular explosions, also, it eveporates too fast.
Tags: acetone, mortar, spudgun, tennis ball mortar, tin can mortar
