1:72 Scale Diecast metal and plastic parts ? Mil Mi-4 Hound Transport Helicopter - Length: 9.5" (from tip tail to tip of rotor at the front) Rotor span: 11? This model does not include a pilot/crew figures. The cockpit can not open. This model is TAIL HEAVY, so if placed on its landing gear it will tip upwards (with the nose pointing up). A stand where the model can be attached for display is included. The display stand has the model's info such as country, flag and scale. The blades for the main rotor need to be attached. Although they are supposed to be snap/friction fit, it seems that it will be better is a tiny (very tiny) drop of super glue is applied just to keep things secure. The assembly for the rotor and the blades are very fragile, so one needs to be very careful when attaching the blades since it is very easy to bend or break things out of shape. This is not a toy. Recommended for 15 and older. The Mil Mi-4 (USAF/DoD reporting name "Type 36", NATO reporting name "Hound") is a Soviet transport helicopter that served in both military and civilian roles. The Mi-4 was designed in response to the American H-19 Chickasaw and the deployment of U.S. helicopters during the Korean War. While the Mi-4 strongly resembles the H-19 Chickasaw in general layout, including the innovative engine position in front of the cockpit, it is a larger helicopter, able to lift more weight and built in larger numbers. The first model entered service in 1953. The helicopter was first displayed to the outside world in 1952 at the Soviet Aviation Day in Tushino Airfield. One Mi-4 was built with a jettisonable rotor. It served as an experimental vehicle for future pilots' means of safety and ejection designs.