1917-1947 - Two 12-inch rifles. Langdon was first built as two open firing platforms. (see diagram right)
During WWII, Langdon's 12-inch rifles were roofed with 17-foot thick concrete casements. But amphibious and missile warfare made harbor defense guns obsolete.
Military - Historic - Forts and Batteries
Links: www.kilroywashere.org
By: kjfitz