Comments by "Steve Valley" (@stevevalley7835) on "The Drydock - Episode 133" video.
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wrt the question about ships being repaired in a neutral US, there were two cases of German ships coming to the US for fuel and repairs in WWI, which both turned into a preview of the Graf Spee's situation. The commerce raider Prinz Eitel Friedrich steamed into Newport News Virginia on March 10, 1915 for fuel and repairs. It became quite an event as, in a hot second, there were British and French warships barely outside the US' 3 mile limit waiting for the Friedrich to attempt a breakout. US shore batteries were put on alert and a USN battleship patrolled to enforce US neutrality in case the Brits or French tried to attack the Friedrich in US waters. Ultimately, the Friedrich's captain opted for internment, rather than try to elude the British squadron. Then, on April 12th, the Kronprinz Wilhelm steamed into Newport News, also for fuel and repair, and the dance was repeated, until the Wilhelm's captain also chose internment. I would say the difference between the two incidents in Newport News, and the Graf Spee's, and British ships refitting in the US, is, in the case of the British ships, the Germans did not have the naval force to try and trap the ship as it left the US.
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@lloydknighten5071 to expand on Walter's reply, sighting was done at the turret. In the pic of Barham undergoing refit that Drac used, you can see the three sighting periscopes on the top of A turret: one between the guns for the man traversing the turret and one on each side for the men operating the elevation of the corresponding gun. At the turn of the century, there were armored hoods in those locations, where the gunners stood, sighting through small telescopes. The telescopes were connected to the guns by a complex linkage so they would elevate in unison. Slop could never be entirely eliminated from the linkage connecting the gun to the scope, so, with the South Carolina class, the USN changed to a new model turret that had the scope rigidly bracketed to, and concentric, with the gun trunnion, so there was no slop. This resulted in the scopes being mounted low on the side of the turret, instead of the top, which also had the advantage, as the South Carolinas were the first USN battleships with superfiring turrets, that the sights were out of direct muzzle blast of the superfiring guns. While the RN persisted with the turret top mounted sights when they shifted to superfiring turrets, I have read that the gunners were directed to not fire the superfiring guns within 20 degrees either way of dead ahead, to prevent the sighs in the lower turret suffering from the muzzle blast.
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@BraydenPotter if you define dreadnought as all big guns, with nothing else but 12 pounders for plinking torpedo boats, dreadnoughts could have been built in the 1890s. The largest obstacle was probably the slow rate of fire of the big guns, which made smaller, more rapid firing guns, necessary. When commissioned, the 13" guns on the Indiana class ships of the 1890s had a rate of fire of about 1 shot per five minutes vs about 1 round per 2 minutes for the 8" secondaries. The shift to smokeless powder reduced the amount of propellant that had to be loaded, and the navy discovered that paying attention to ergonomics and doing some training did wonders for reload time. The reload time on the Indianas was cut from 5 minutes to 1 minute for the 13", while the reload time on the 8" secondaries was cut to 30 seconds. The 12" guns on the last USN pre-dreadnoughts had a rate of fire of 2 rounds/minute, the same as the 8" secondaries, which rendered the 8" secondaries a waste of space, vs mounting more 12". That's my take on the question.
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