More testing
Posted: Wed Sep 09, 2009 7:08 pm
I did some more testing today. I dug out the larger cannon and did some tests at only 50 PSI.
The first test was done with the 4 inch barrel because the 4:1 expansion worked well on the little cannon. At 50 PSI the results were terrible. I knocked over only 3 bottles and no cans. For this to work high pressure is required to get the expansion to the larger barrel.
The second test was done with the short tennis ball barrel. Results were not bad for 50 PSI.
I then moved up to the long 2 inch barrel and managed to clear a path to 23 feet.
Knocking over stuff at a distance with the muzzle blast of an air cannon isn't easy.
The first test was done with the 4 inch barrel because the 4:1 expansion worked well on the little cannon. At 50 PSI the results were terrible. I knocked over only 3 bottles and no cans. For this to work high pressure is required to get the expansion to the larger barrel.
The second test was done with the short tennis ball barrel. Results were not bad for 50 PSI.
I then moved up to the long 2 inch barrel and managed to clear a path to 23 feet.
Knocking over stuff at a distance with the muzzle blast of an air cannon isn't easy.