The idea was that, before radar was invented, people needed to see targets to shoot them, and because of the extreme ranges involved in battleships, the curvature of the Earth was a factor, (battleships had ranges of over 25 miles, so they could shoot further than they could see, and at those ranges, simple radio-relayed spotting was too inaccurate,) so getting as high as possible meant seeing as far as possible.
Ugh... Yet another failure... such misfortune.To lift Yamashiro's spirits, I've made a deluxe burger!DONK14 storiesOnee-sama...!Yamashiro, you can win the next one.How wonderful! This'll make you feel better!