Board Thread:Game Updates/@comment-3502824-20170107021331/@comment-1915363-20170111020841

Juuryoushin wrote: I'm really curious about what the effects can be starting from Fast+. (inb4 ammo/fuel goes off slower, INB4 10 NODE EVENT MAPS AGAIN FKINGTANAKA, jk.) Equipping additional boilers on a ship for more speed actually costs more fuel, especially at the flank speed.

That is the reason why Iowa is such a fuel (and ammo too, but that's for different reason) hog in Kancolle. Just like how they only really counted the maximum range for range designation, devs mainly considered Iowa's flank speed for the fuel cost calculation.