Marsh Screw Amphibian

1964 CHRYSLER MARSH SCREW AMPHIBIAN BOAT For water, mud, marsh, sludge, slough, bog, fen, morass, quagmire, snow, slush, sand, silt, muck & mire. This is called a marsh screw amphibian. A new vehicle designed and built for adverse terrain by Chrysler Corporation under contract to U. S. Navy’s Bureau of Ships for Advanced Research Projects Agency, Department of Defense. It is 13 feet long, 8 feet wide, made of aluminum. It weighs approximately 2300 pounds and it’s most at home where other vehicles are decidedly not. Note the unusual pontoons, one on each side. Don’t they look just like two giant screws? They act accordingly. When the right pontoon rotates clockwise and the left pontoon counter-clockwise, the screws dig in and propel the vehicle forward. Reverse the action: reverse. Simple — once Chrysler Corporation engineering took the screw principle and made it mobile. Mobility in defense is a major consideration in modem day military planning. Chrysler contributions to this philosophy: a mobile floating assault bridge-ferry that can be transformed into a 126-foot bridge in 6 minutes. A cargo truck that can float a 2½ ton load across water or be parachuted in by air. The M-60A1 main battle tank. And the marsh amphibian. And this is one more way Chrysler Corporation moves ahead, as the twelfth largest industrial business in America, with confidence in its own growth and in the future of this country.