Comments by "Steve Valley" (@stevevalley7835) on "IJN Kaga - Guide 255" video.

Akagi was also originally completed with three decks. A three deck arrangement was considered for the Lexingtons. The Couragouses were built with two flying off decks.
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David Carr I'm not sure armored flight decks were decisive. The RN had significant carrier losses too, mostly to torpedoes. Yorktown and Hornet were disabled by aircraft launched torpedoes and finally sunk with more torpedoes. The internal fires that doomed Lexington and Wasp were due to damage from torpedo hits. On the other hand, the British carriers tended to have a lower overhead in the hangar. That was not a problem for Grumman built aircraft, as their wings folded parallel to the fuselage, the same as a Skua or Swordfish. It was a problem for other US carrier aircraft that had wings that folded upward. The Brits had to clip the wingtips of Corsairs for them to fit in the hangar of some carriers.
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@brendonbewersdorf986 "odd" gun calibers abounded in fleets of nations that use the metric system. France had 13.4" guns. The Nagatos had 16.1" guns. "Odd" only in Imperial measure. The French guns were 340mm, and the Japanese were 410mm. The German 13.8" guns were 350mm. To the rest of the world, the US and UK 16" guns, at 406mm, would be "odd".
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Jordan's "Warships After Washington" says that the UK was supportive of a 43,000 ton limit for individual battleships, while the US wanted the 35,000 ton individual ship limit. (chapter 5, page 74) What if they compromised, that everyone was entitled to one 43,000 ton ship, because the RN had Hood, with the rest of their battleship force limited to 35,000 tons? The Japanese could have demanded the right to complete one of the Tosas as their 43,000 ton ship. That would give the IJN 3-16" armed ships. To maintain the 5:3 ratio, the US would need to complete the forth Colorado, Washington, and one 43,000 ton ship. Which 43,000 ton ship would they choose, a South Dakota, or a Lexington, and why?
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