An American ship being pummeled by wind and wave in a storm at sea. Next, sailors are seen preparing to fire a 4-inch / 50 caliber Mark 9 deck gun mounted near the ship's stern.. The sailors work on the gun, while an Officer holding a log book, of sorts, observes. The sailors raise the gun barrel and rotate it to starboard. They ram a shell into the breech, and rapidly close it. (The breech is equipped with an Ausbury mechanism for rapid opening and closing.) They continue to open and close the breech, loading multiple powder charges. Closeup from a different viewpoint of the gunners loading the gun, as a sailor at the gun maneuvering controls elevates the barrel with a hand crank
Pursuit Airplanes of United States Army Air Corps. CURTIS XP-17 Pursuit Airplane. A single seater experimental pursuit airplane with a wright 'V-1460' engine and developing 480 HP. A man climbs down the plane. The engine of plane runs. A pilot in the plane. The XP-17 taxis at the Wright Field.
Pursuit Airplanes of United States Army Air Corps. Curtis YP-20 Pursuit Airplane. It is powered by a Wright R-1820 and an engine of 575 HP. A man starts the engine and the plane taxis at the Wright Field.
Pursuit Airplanes of United States Army Air Corps. Curtis XP-22, Pursuit Airplane. It has power plant of 600 horse power and Curtis 'V-1570-C' engine. The engine of plane runs and the plane taxis at Wright Field.
Pursuit airplanes of United States Army Air Corps. Boeing 'XYIP-26', A single seater Pursuit Airplane is powered by a Pratt and Whitney 'SR1340-G' engine of 500 horse power. A taxi test of the air plane. A pilot sits in the plane and the engine starts. Planes with two engines in background.
Pursuit Airplanes of United States Army Air Corps. Curtiss P-6-E single seater Pursuit Airplane with Curtiss 'V-1570-C' engine of 600 horse power taxis at Wright Field.