BM-30 Smerch
The BM-30 Smerch, 9K58 Smerch or 9A52-2 Smerch-M is a heavy self-propelled 300 mm multiple rocket launcher designed in the Soviet Union to fire a full load of 12 solid-fuelled projectiles. Wikipedia
Barrels: 12
Caliber: 300 mm
Crew: 3
Engine: D12A-525A V12 diesel engine; 525 hp (391 kW)
Height: 3.05 m (10 ft)
In service: 1989–present
Length: 12 m (39 ft 4 in)