30 SCREW VEHICLES

Armstead Snow-Motor Fordson. Pict  Francis Pierre, Heidrick Museum, Woodland, CA, 2000.

Armstead Snow-Motor Fordson. Pict  Francis Pierre, Heidrick Museum, Woodland, CA, 2000.

Armstead Snow-Motor, 1926, of Snow-Motor Company, issued of a Fordson tractor. see Chap 'Screw Propelled Vehicles'. Pict  Francis Pierre, Mine Museum Butte, Montana, 1998.

Locomotion Studies from a video, 1987, between Archimean screw and tracks in soft mud, at CEA, Commissariat à l'Energir Atomique, Fontenay Aux Roses.

ZIL screw vehicle prototype, 1966. ZIL-4904 will be produced later and is now staying in Auto Museum (in open air). See site denisovets.narod.ru.

ZIL Screw Vehicles prototypes designed by SBK and tested between 1966 and 1970. They performed well in mud and water but were unable to move on hard surfaces as road. see : alternathistory.

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Screw propelled STAR, Spiral Track Autonomous Robot, from 1995, at Lawrence Livermore National Laboratory, LLNL. National Laboratory of Masey University, California. STAR 2, nowadays is lighter. See Chap. 'Screw Propelled vehicles'.

STAR 2, nowadays is lighter. See Chap. 'Screw Propelled vehicles'.

Amphi-Cat screw propelled vehicle, a work-boat for swamps. Technology by J.Pasteiner. Lengh=12,3 m, Mass 19 t, 240 kw diesel engine, hydrostatic transmission.

Mitsui AST-001 built around 1970 in Japan seen here in 2005 at a show. See Chap. 'Screw propelled vehicles'.   forum.bushtaxi

Amphiroll screw vehicle built by J J De Bakker, Hulst, Netherland, after WWII had 2 screws for propulsion in mud and water. Moving forward and sideward, it was equipped with Variomatic trasmission DAF, it had a payload of 2,5 t at a speed of 30 km/h. It could not travel on roads.

Picture from book of Nick Baldwin 'The Illustrated History of Off-Road Vehicles' Haynes Publishing, 1987.

Amfirol