Comments by "COL BEAUSABRE" (@colbeausabre8842) on "The Drydock - Episode 219 (Part 2)" video.

  1. After WW1, Sir Robert Hadley stated his firm was ready to build shells up to 21 inch caliber. He was hurriedly told to shut up and not make the naval arms race worse.
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  2. Drach, the PPI display was in wide use by Mid-WW2, SG (with PPI) was first available in the Pacific in October 1942 and installed on all cruisers and destroyers by early 1943. 955 were produced by 11/43. SC-2 (the first model of SC to have PPI) had 450 sets produced by December 1943.
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  3. "The USN originally procured torpedoes by contracting with private manufacturers. Each vendor was assigned their own Mark number series and was given a designation in metric or in metric and english dimensions specifying how large was the torpedo in both diameter and length and the manufacturing name. For example, the first Bliss-manufactured torpedoes based upon the Whitehead torpedo patents were designated as the Whitehead 3.55m x 45cm Mark I. The first Bliss-Leavitt torpedoes manufactured to their own design were designated as Bliss-Leavitt 5m x 21-inch Mark I. In 1913, the practice of assigning a series of marks to each manufacturer was changed to a single series of marks covering all manufacturers and older torpedoes were redesignated. Surviving 45 cm torpedoes were designated as Types A through C while the 21-inch torpedoes were designated as Mark I through Mark 4. Details may be found in the Pre-World War II USA torpedo datapage. From that time onwards, the Mark number alone, or in a few cases the Mark and Mod numbers, uniquely identifies each torpedo. USA torpedoes since that time are simply designated with "Mark" followed by a Numeral and a "Mod" followed by a number representing the change made since the basic design. For example, the Designation "Mark 12 Mod 2" means that the torpedo is the twelfth torpedo designed by the USN and that it has undergone two design revisions since the first model. In 1922, all torpedoes prior to the Mark 7 were declared obsolete and removed from service. As of that point, only the Mark 7 (17.7") and Marks 8, 9 and 10 (all 21") remained in service. All USN 18 inch torpedoes are actually 17.7 inches (45.0 cm) in diameter. During World War I production was at the Alexandria Torpedo Station at Alexandria, Virginia. This station was closed shortly after the war ended. Production prior to World War II was at the Naval Torpedo Station at Newport, Rhode Island. Efforts to reopen the Alexandria Station prior to World War II were frustrated for political reasons for 11 years before it was finally reopened in July 1941. In addition to these two, Bliss and the Pontiac Division of General Motors made torpedoes during World War II and Westinghouse developed the Mark 18 Electrical Torpedo. After World War II, Honeywell and later General Dynamics were the primary manufacturers while General Electric made some of the acoustic ASW torpedoes."
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  4. By 1945, Task Force 38 (Fast Carriers) mounted more AA weapons by late 44/early 1945 than all of Great Britain
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  5. IIRC, the USN retired its last coal fired ship in 1940.
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