Certainly demonstrates the difference in philosophy regarding secondary / AA armament, with the US going for a universal ten turret twenty gun battery, whilst the Japanese has the two different calibres of twelve 15.5cm guns, unsuitable for AA and another twelve 127mm guns for AA.
The use of the 25mm cannon was certainly inferior to anything that the US placed on ships after 1942 when the 1.1in gun was being replaced by 20mm and 40mm guns.
One last point about the Musashi main battery. The blast from the nine 18" guns was sufficient to injure anyone on deck not protected behind blast proof shields, such as that covering the 127mm guns.
Which is also why the ships' aircraft and boats were stowed under armour at the stern.
Most true, Doug, and the French, German, Russian and Italian post-London BBs also clung to the separate secondary caliber, single purpose, sometimes mounted in cruiser type turrets. It's somewhat explained by the lack of appreciation for carrier aviation as a threat, but also the fixation on Jutland-like battleline engagements where the battleships would have to deal with some cruisers accompanying destroyers in torpedo attacks, without distracting from main battery targets.
Almost every film of IJN triple 25mm mounts in action shows one or more gun not firing; it was apparently a hassle for the loaders to get find enough room to serve the weapons.
I thought the clean sea trial condition of Musashi offered an unusual opportunity to appreciate her design and mass. I also thought the almost humorous small boats added in davits strapped on deck must indicate what a pain it was to unship the ships boats from their after stowage area. Probably a safety measure in the event of a man overboard.
In all a very placid scene for the ship and crew compared to the ships' horrific end.
Edited by Ken Estes, 05 December 2018 - 1409 PM.