Growth of the Land-wasser-schlepper (Land-Water-Tractor) were only available in 1936, although the first 7 cars was completed in July of 1940. An extra 14 was at truth developed by March of 1941. It was created by Rheinmetall-Borsig as an amphibious vehicle to be utilized by engineers but it surely lacked space for storing and loading/unloading access. To conquer this issue, unique 10 and 20 ton amphibious trailers have been made. It carried significantly less than six men team and 20 people. Another problem completed up being it had been unarmored and may also not run effortlessly within the combat area. LWS saw solution in Russia and North Africa .