Production. Airplane maufacture, general. American mothers and sisters, like these women at the Long Beach, California, plant of Douglas Aircraft Company, give important help in producing planes for their men at the front. Most important of the many types of aircraft made at the plant are the B-17F ("Flying Fortress") heavy bomber, the A-20 ("Havoc") assault bomber and the C-47 heavy transport plane for the carrying of troops and cargo