Multiple Launch Rocket System. The multiple launch rocket system BM-21 “Grad” entered service in 1963 and to the present time is one of the most expand system of this class in the world. This vehicle was built on Ural-375 (and then - Ural-4320) chassis. In 70-90s “Grad” was successfully used in many local conflicts: in Asia, Africa and in Russia (during Chechen crisis).
в инструкции небольшая опечатка, в пункте «1» нарисовано, что нужно удалить «часть» детали А11 и А12 но в пункте «10» что деталь А11 и А12 «не обрезаны»