Like it happens, the story comes a bit later than supposed, sorry for the waiting. Source of my information is a book called 'Secret cars of the Soviet army' by Evgeny Kochnev.
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The car, called ZIL SAK (SAK stands for 'aerodrome control system'), was developed at ZIL together with Dzerzhinets plant in Moscow in 1966 (Dzerzhinets produced various aggregates; its successor is Aeroelectromash, set up on the basis of the elder plant and also responsible for aggregates like generators, electronics etc.) and built in two examples. The car was an air transportable unit for pre-flight diagnostics, both military and civil. SAK consisted of two sections - the front one (the picture in post #1 here) is a tow section, the rear one carried the power unit (ZIL 135 engine of 180hp driving the generator). The tractor had a driver's seat and some space for personnel and equipment up to 1 tons of weight. Rear wheels of the tractor had built-in electric engines driven by the engine in the rear section (which could also serve as a power source for aircrafts' onboard electric systems). ZIL SAK tractor weighed around 4 tons, had 5540mm in length, the whole two-section unit - 5,5 tons and 8,8 meters. Maximum speed was at 32 kph. The car was tested at Zhukovsky military airfield near Moscow.
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