S-4 Stalinets

The S-4 «Stalinets», is a self-propelled combine harvester, made by several different combine harvester plants in the former Soviet Union, from 1947 until 1955. In 1955, the modernised variant, called the S-4M, was introduced; it was put out of production in 1958. In total, 29,582 units were built. In former East Germany, the S-4 combine was built under licence by the IFA as the Fortschritt E 170 series, from 1954 until 1967. Unlike the original S-4, which is powered by an otto engine, the Fortschritt E 170 series combines were all powered by a diesel engine, and some of them came with a chaff waggon rather than a straw waggon.