Growth of the Land-wasser-schlepper (Land-Water-Tractor) had been only for sale in 1936, though the very first 7 cars had been finished in July of 1940. Yet another 14 was indeed produced by March of 1941. It was designed by Rheinmetall-Borsig as an amphibious vehicle for use by designers nonetheless it lacked storage and loading/unloading access. To overcome this problem, unique 10 and 20 ton amphibious trailers were made. It carried 3 to 5 guys team and 20 people. Another problem was in fact it absolutely was unarmored and could perhaps not operate effortlessly inside fight area. LWS saw solution in Russia and North Africa .