KAMAZ-7850 (“Platform-O”) is a family of wheeled transporters for very heavy loads, developed for the Ministry of Defense of the Russian Federation. It serves as a possible replacement for the Belarusian-made MZKT chassis for intercontinental ballistic missile launchers. Platform-O includes a KAMAZ-7850 16x16 chassis with a load capacity of 85 tons, a KAMAZ-78509 12x12 with a load capacity of 60 tons, a KAMAZ-78504 8x8 tractor capable of towing a semi-trailer of 90 tons, and a KAMAZ-78508 8x8 for moving aircraft at airfields. This family was developed with an eye to working with RS-24 Yars missiles[