A United States Army training film about chemical warfare. United States soldiers light toxic candles (yielding only smoke in this training operation). Smoke rises from the candles and spreads in the surrounding area. U.S. troops wear gas masks. A soldier lights the toxic candles placed in a line on the ground.
A United States Army training film about chemical warfare. United States soldiers fire artillery with 75mm shells to achieve a smokescreen. Explosions on the ground with smoke surrounding the area. The soldiers load and fire artillery.
A United States Army training film about chemical warfare and the Chemical Warfare Service. United States soldiers install Livens gas projectors (delivering smoke) directed towards mock enemy in trenches. Explosions on the ground with smoke spreading in the surrounding area.
American plane bombs a U.S. ship during aerial bombarding testing in United States. Pilot in an American plane. U.S. ship underway at sea. Aircraft bombards a ship during aerial bombarding testing. Brief view of Sikorsky S-38 amphibians in flight. Plane flies above a ship. Explosions and smoke rises. A United States aircraft carrier at sea.
A man pedals a test airplane down a ramp in attempt to fly. It falls off the end of the ramp. The pilot climbs out unhurt.
Pilot takes off from pasture field in an ultralight biplane. He successfully flies and lands in the pasture.