Keywords: Coanda snow sleigh.jpg Henri Coandă The sleigh was owned by Grand Duke Cyril of Russia Its powerplant was a piston engine which drove a ducted fan or suction turbine the same power plant that Coanda had exhibited in 1910 on his first aircraft later called the Coandă-1910 http //books google co uk/books id At4DAAAAMBAJ pg PA359 Photograph and article appeared in Popular Mechanics of March 1911 no author or photographer listed author 1911 PD-old Henri Coandă 1911 photographs Aerosani Ducted fans |