Young Sikorsky with his invention "aerosani", a kind of snowmobile

Young Sikorsky with his invention "aerosani", a kind of snowmobile

You probably know Sikorsky as an inventor of helicopter or for crafting the first four-engine plane. But what is not widely known – is that, tired of non working models of helicopter, he, as a student, invented a kind of snowmobile. And called it “aerosani” (“air sleigh”). Here is the retro photo of him, posing with…