of the magazine Science and Mechanics states that "from his aerosleds the Russians developed their present battle sled." The claim though has to be viewed in the context of a pre-World War I picture of an Igor Sikorsky machine in Kiev. The first military aerosani used in Finland, the KM-5 and OSGA-6 (later called NKL-6), were initially built at the Narkomles Factory in Moscow. During World War II, improved NKL-16/41 and NKL-16/42 models were built, and production started at the ZiS and GAZ car factories, and at smaller industries such as the Stalingrad Bekietovskiy Wood Works. In 1941 the armoured NKL-26, designed by M. Andreyev, started production at Narkomles. The following year, Gorki Narkorechflota developed the smaller, unarmoured GAZ-98, or RF-8, powered by a GAZ-M1 truck engine and a durable metal propeller. There was also an ASD-400 heavy assault sled used in World War II. In western sources, they are commonly referred to as 'aero-sleds'. See also Airboat Hydrocopter Ekranoplan Armoured fighting vehicle KRISTI snowcat Multi-passenger snowmobiles References Bibliography Zaloga, Steven J., James Grandsen (1984). Soviet Tanks and Combat Vehicles of World War Two, pp. 185–87, London: Arms and Armour Press. . Science and Mechanics, Spring 1943, p. 49. External links propeller-driven sleds at Lonesentry.com The Propeller-Driven Sleigh N007 Tupolev, aerosled with ground effect At the Russian Battlefield: Soviet Combat Snowmobiles, in English RF-8-GAZ-98 Snowmobile NKL-26 Snowmobile ANT-IV Snowmobile Boyevyye aerosani 'Combat aerosani' at Brone-Sayt (Russian language) Aerosani-amfibiya AS-2, a modern amphibious recreational vehicle from aircraft manufacturer Tupolev (Russian language) Aerosani in WWII Article in Poligon magazine, 1'2002 (at Otvaga site). Military vehicles of the Soviet Union Snowmobiles Soviet inventions