As the first of its kind ever to be installed on a ship, the Monitor’s 115-ton revolving gun turret represented a major technological advancement that changed the course of naval architecture ...

And again in 1910, on page 503 of Jane's “Fighting Ships,” Captain William Hovgaard strts: "The ideal arrangement of the heavy gun-turrets seems to be the American, frst adopted in the ...

“Every turret on a ship, you know, from gun battleships all the way through now with autonomous lidar you see on modern ships, all that comes from the turret that’s sitting in that tank behind me.