Yes, Paths of Hate is 10 minutes long.
Ah yes, I had forgotten Sky Crawlers.
I'll try to find some onther animes / CG films that feature 1930's-1950's planes.
First thought : Zipang, but it's more a king of "Nimitz film" on the japanese point of view.
Wiki :
http://en.wikipedia.org/wiki/Zipang_%28manga%29
Video :