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Old November 16, 2012, 10:58 AM   #40
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Join Date: February 16, 2006
Location: IOWA
Posts: 6,227
Lighthouses and Cannons

Somewhat related; We have visited a number of lighthouses around the Great Lakes and on more that one occation, have noticed some fairly large black powder cannons. These were used to project a rescue line to ships out on the lake. Basically they project a long weighted rod, with a line attached. As long as you have plenty of by-pass and no air pockets, there is not enough restriction to do any harm. The barrels I saw were about 4Ft. long and 8" OD. ..

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