Huge drop hammers work day and night forming sheet metal parts for United Nations bombers and fighters at the North American Aviation, Inc., plant, Inglewood, Calif. The heavy hemp rope is used to snub the hammer so that it forms the part under proper pressure and rises clear of the work after each

Huge drop hammers work day and night forming sheet metal parts for United Nations bombers and fighters at the North American Aviation plant, Inglewood, Calif

Huge drop hammers work day and night forming sheet metal parts for United Nations bombers and fighters at the North American Aviation, Inc., plant, Inglewood, Calif. The heavy hemp rope is used to snub the hammer so that it forms the part under proper pressure and rises clear of the work after each

Sheet metal parts are numbered with this pneumatic numbering machine in North American's sheet metal department, North American Aviation, Inc, Inglewood, Calif

Women take over the operation of some of the heaviest machine tools at the Inglewood, Calif., plant of North American Aviation, Inc. Day and night, shifts of girl employees use this huge hydraulic press to form thousands of sheet metal parts for United Nations war planes.

Sheet metal parts are numbered with this pneumatic numbering machine in North American's sheet metal department, N orth A merican Aviation, Inc., Inglewood, Calif.

Metal parts are placed on masonite by this woman employee before they slide under the multi-ton hydropress, North American Aviation, Inc., Inglewood, Calif.

In North American's modern machine shop, another aircraft part is finished on a huge turret lathe, North American- Aviation, Inc, Inglewood, Calif

Punching rivet holes in a frame member for a B-25 bomber, the plant of North American Aviation, Inc., Calif.