Soviet NKL-26 Aerosani
Snow of course has always proved a challenge to military vehicles, and various armies have come up with some unique concepts for dealing with it. One of the most visually interesting was the Russian NKL-26 Aerosani; a lightweight plywood box with ten-millimeter armour plate on the front and armed with a 7.62mm DT machine gun in a top mounted ring. It was powered by an M-11G aircraft engine, and could reportedly reach speeds up to 25–35 km/h in deep snow, where most other vehicles couldn’t move at all. Each NKL-26 was operated by two crewmen, and could carry four ski troops riding outside the vehicle on its skis.