Board Thread:Anime/@comment-25730832-20150224105829/@comment-5380363-20150301090442

Ragebolt wrote: [lots of stuff] Well, if you really want to know...

Akagi: I'll take your Oxygen Torpedoes... And eat it.

Akagi was planned as a battlecruiser from the start and was converted into an aircraft carrier during construction, so you can say her fuel consumption was based on historical facts. (Kaga, the other big-eater, was planned as a Tosa-class battleship. You see a pattern here?)

For comparison, Akagi historically had 19 Kampon Type B boilers which were either oil-fired or mixed oil/coal-fired driving 4 steam turbine shafts. This gives Akagi 133,000 hp and a range of 10,000 nmi. Yamato had only 12 Kampon boilers with 4 steam turbine shafts, though. This gave her about 150,000 hp but her operational range was only 7,200 nmi. Compare this to Zuikaku and Unyruu, who had only 8 Kampon oil-fire boilers which had better shaft-horse power (160,000 hp / 152,000 hp) while requiring less fuel to do so. Sure, they sacrificed operational range (5,668 nmi / 8,000 nmi) to get that kind of figure, so it's somewhat of a trade-off.

Kongou, in comparison, had 11 oil-fired kampon boilers and 4 turbine shafts with 136,000 hp and a range of 10,000 nmi. While that may seem a lot, Kongou only had to carry a little over 3,000 tons of oil, while Akagi had to carry 4,000 tons of coal and another 2,100 tons of oil. So 5,100 tons of fuel for 10,000 nmi? That sure is a lot.

The directors and script writers are taking some nods to historical accuracies and giving them comical exaggerations. Don't get your knickers in a twist just yet, I'll be back with more on the others. This literally took me about 10 minutes of Googling, if you really want to know how I got these figures. (Heck, typing them up here was a lot more time-consuming than looking for data.)

[To be continued]