The Russian Mil company developed a series of helicopters including the Mi-8. It was designed as a twin-engined transport helicopter and was first flown in 1961. Also armed versions were developed and it got the NATO code name "Hip". More than 17.000 helicopters in several versions were produced, it (still) serves in dozens of Air Forces and with commercial operators. The type was further developed into the Mi-14 that is still produced.
Mil Mi-8 S
This is a Polish air force Mi-8 (c/n 10631) with code "631" in an attractive white-red scheme. It has a passenger interior and rectangular windows. It was seen at Texel airport (NL).
Photographed Summer 2015 by Cees Hendriks (C) Copyright IPMS Nederland
Quite a few plastic scale models exist of the Mi-8. It started with a rudimentary KP kit in 1/72, quickly superceeded by better models including a very good Bilek/ Italeri and the Zvezda/ Revell model (the same mould). Also HobbyBoss has a good model. In 1/48 scale "Navigator" has a model and Trumpeter has a 1/35 scale model.