The Kamov Ka-18 (NATO reporting name Hog) was a Soviet four-seat utility helicopter that first flew in 1955. It was a development of the Kamov Ka-15, with a lengthened fuselage and more powerful engine - the 255 hp Ivchenko AI-14V radial. About 200 were built.
Read more about Kamov Ka-18: Operators, Specifications (Ka-18)