National Geographic : 1950 Nov
El 652 National Geographic Photographer Joseph B. Roberts Helicopters and Seagoing Tanks Help Marines Fight Afloat, Ashore, and Aloft From a Sikorsky Flying Windmill a cable unreeled from a hydraulic winch lowers a Leatherneck to a waiting armored amphibian, or LVT (Landing Vehicle, Tracked). Alongside hover two twin-rotor Piaseckis, popularly called Flying Bananas or Sagging Sausages. Camouflaged Marines watch from another LVT. In maneuvers like these in the Potomac, the Corps tests helicopters for observation and artillery spotting, air-sea rescue, troop and equipment transport, and liaison work during a ship-to-shore assault. Special helicopter crews have been trained for carrier take-offs and landings (page 663).