National Geographic : 1945 Oct
-.. ..... Hughes Aircraft Co: Wingspread of the 8-engined, All-wood Hughes Flying Boat Is Longer Than aFootball Field The wings are 13 feet thick where they join the hull. The aircraft is built almost entirely of laminated wood, mostly birch, because metal was scarce when itwas planned. It has millions of glued joints. Each of its engines has 3,000 horsepower, and the fuel tanks hold 14,000 gallons ofgasoline (page 389).