Komár (Gnat or Mosquito) is closest possible replica of a real rubberband powered flying modelplane. This plane is very well slow flying and in flight looks like the original real modelplane ;-)
Real model aircraft was produced in the seventies and eighties in the former Czechoslovakia. It is a model with a very simple construction, designed primary for children.
It was made of one spruce splint (body), polystyrene foam (wing and stabilizers), plastic (propeller, head, wheels, ...), rubberband and steel wires and sheets.

After the collapse of the Communist regime, production was restored at the end of the nineties by the Komár 2 model, which is almost identical. It has white wings with print, unlike the original pale green, and some plastic parts has also other color. Few images of real Komár 2: