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Description
This is another view of the USS Abraham Lincoln's pivot cannon and casemate gunport from "20,000 Leagues Under the Sea" (1954). I was curious to see how wide an arc (how close to dead aft or forward) the gun could cover by this arrangement.

Description
This is another view of the USS Abraham Lincoln's pivot cannon and casemate gunport from "20,000 Leagues Under the Sea" (1954). I was curious to see how wide an arc (how close to dead aft or forward) the gun could cover by this arrangement.