The BM-27 Uragan (Russian: Ураган, “hurricane”; GRAU index 9P140) is a self-propelled multiple rocket launcher system designed in the Soviet Union. It began its service with the Soviet Army in the late 1970s, and was its first modern spin and fin stabilized heavy multiple rocket launcher.
The BM-27 Uragan is capable of launching 220 mm rockets from 16 launch tubes mounted on the rear of a ZIL-135 8×8 chassis. This vehicle is extremely similar to that used in the FROG-7 free flight rocket system. It has two gasoline engines that power its 20 tonnes to a maximum speed of 65 kilometers per hour. One engine drives the four wheels on the left of the truck, while the other engine drives the four wheels on the right. The ZIL-135 has eight wheel drive, but only the front and rear axles are used for steering. It has a maximum cruising range of 500 kilometers.
The cab of the ZIL-135 is NBC protected, allowing the rockets to be fired without exposing the crew to possible contaminants. The four-man crew can emplace or displace the system in three minutes.