United States Coast Guardsmen patrol coasts in the United States. Coast Guardsmen mounted on horseback as they patrol coastlines throughout the United States. Narrator states they are guarding the coast from landings of enemy saboteurs who would arrive by submarine (reference to the Coast Guard discovery of Operation Pastorius Nazi German would-be saboteurs caught on Long Island, New York.) Coast Guardsmen ride horses on a beach. Trained dogs and radio sets also assist them in patrolling the shoreline.
U.S. Army Air Corps C-2A aircraft being refueled in mid air during a 11,000 mile long endurance flight in Los Angeles, California. C-2A aircraft in flight with the Douglas C-1 aircraft in flight forward and above it. Tanker plane C-1 lowers its hose to Question Mark aircraft. Crew member on Question Mark catches the hose and drags it inside. C-2A aircraft being refueled in mid air. Another aircraft in flight in the background. C-2A Question Mark aircraft being towed by a tractor on a field as ground crew surround it.
Successful endurance flight of U.S. Army Air Corps C-2A aircraft in Los Angles, California. C-2A Question Mark aircraft taxis and takes off from an airfield in California. Douglas C-1 transport aircraft in flight. C-1 aircraft lowers a hose to refuel the C-2A in mid air. Hose attached to the aircraft as oil, food and gasoline are being supplied to C-2A aircraft. C-1 refueled C-2A Question Mark during the 150 hour long endurance flight.
A training film about the means of forecasting avalanches in Alta, Utah. A Ram Penetrometer being used by a ranger to observe and study the behavior of snow cover. It measures the hardness of snow. A ranger digs a pit alongside the penetrometer with a shovel. Snow temperature being recorded with the help of a dial thermometer in the dugout. Layering of snow being recorded by the ranger to detect an avalanche. About half meter long sample tubes being inserted in different layers of snow. Sample tubes being removed and weighed to determine the water content and stability. Similar tests being conducted along a fracture line. A ranger with a penetrometer at the fracture line. Snow layers being observed and recorded at the fracture line. Ram resistance and slope angles being measured and recorded at the fracture point to make a profile of the fracture line.
A U.S. submarine patrol in the Pacific Ocean during World War II. A U.S. submarine on surface. A U.S. Navy officer speaks to a man on the bridge of the submarine. An officer looks through a long glass and steps back on the bridge. Crew members aboard the submarine. Two officers converse on the bridge of the submarine. Crew member speaks. A man wearing a baseball cap backwards as he talks to another man. An officer wearing a visored cap. A bearded crew member.
A U.S. submarine patrol in the Pacific Ocean during World War II. A crew member on the watch bridge with a long glass to the man's right. USS Springer underway on the surface at sunset. Red sky and a man with binoculars silhouetted in the foreground. A crew member stands behind a small gun and looks out over water as sun sets in the background. The submarine underway on the surface during sun set.
CRITICALPAST.COM: About Us | Contact Us | FAQs - How to Order | License Agreement | My Account | My Lightboxes | Shopping Cart | Advanced Search | Featured Collections | Website Terms & Conditions | Privacy Policy ©2026 CriticalPast LLC.
License Agreement |
Terms & Conditions |
Privacy Policy
©2026 CriticalPast LLC.