Kamov Ka-8

The Kamov Ka-8 "Иркутянин", ("Irkutyanin" - from Irkutsk), was a diminutive Soviet helicopter that first flew in 1947.
It was a precursor of the Ka-10.
The Ka-8 was a single-seat helicopter with a 27 hp M-76 engine, boosted to 45 hp by using alcohol for fuel.