Coke oven discharged inside a Ford Motor plant in United States. Workers pouring molten steel into engine block molds. Tongs lift engine block out of the sand molds. Ladle of molten steel poured, with many flames and sparks seen. An open hearth furnace is charged with scrap.
U.S. Army Air Corps exercises in the United States. Selfridge Air National Guard Base , Michigan : Army Air Force pilots donning winter clothing. U.S. Army Air Corps Consolidated A-11 aircraft parked in the background. A pilot wears jacket. Three pilots put on heavy winter boots. Pilots sit in a group in front of the Consolidated A-11 and U.S. Army Air Corps Northrop A-17A aircraft parked. A-11 aircraft taxis. Northrop A-17A aircraft taxis. U.S. Army Air Corps Martin B-10 aircraft taxis. Five A-11aircraft take off. Eight A-17 aircraft in flight. A B-10 aircraft in flight. A-11 and B-10 aircraft in flight. March Joint Air Reserve Base , California : A-17A aircraft lined up on flight line and pilots at attention in front of aircraft. Aerial view of A-17A aircraft in flight.