Lastly, as the earth is NOT flat, we’d often spot periscope contacts at the edge of visual detection range. These were referred to as “hull down on the horizon” meaning we’d only see a portion of the ship’s mast as the target approached from over the horizon. Due to the earth’s curvature, as visual range decreased, more of the mast and hull would become visible to the periscope operator. Although not spherical, you flat earthers can suck deez nuts.
Cool info! Brings up other questions like how far could you "see" through the water with sonar? Just like above ground, say you were in 50 feet deep in 100 feet of water and the ocean floor was relatively flat, could you ping another sub miles away or would the curve of the earths crust below the water stop that? Maybe I dont' know how sonar works either.
Do torpedoes have to constantly trim down to follow the curve? I literally know nothing about this. Can they even shoot that far?