Talk:Daihatsu Landing Craft/@comment-7429862-20170801110605/@comment-30542734-20170801112010

Every daihatsu equiped on your shipgirls, without counting improvements, will provide +5% additional resources during expeditions.

You can only bring a total of 4 daihatsu in your fleet (+20% additional resources without counting improvements) bringing more than 4 won't provide additional resources.

http://kancolle.wikia.com/wiki/Expedition/Introduction#Extra_bonuses_to_expedition_incomes

^if you want more specific details.