The STALINETZ S-65 (or Starlinze-65) was basically an improved design based on the S-60 and succeeding it on the production line from June 20 1937,It has an 65-75 hp M17 diesel engine. As of 1941 the STALINETZ S-65 was the most numerous type of full-tracked artillery tractor with in the Soviet Army. The exact figure how many of the 37,626.