multiple rocket launcher

Panzerwerfer 42 The German Panzerwerfer is one of two different types of half-tracked multiple rocket launchers employed by Nazi Germany during the Second World War. The two self-propelled artillery vehicles are the 15 cm Panzerwerfer 42 auf Selbstfahrlafette Sd.Kfz.4/1 (based on the Opel Maultier, or “mule”, half-track) and 15 cm Panzerwerfer 42 auf Schwerer Wehrmachtsschlepper (or Panzerwerfer auf SWS).

German Rocket Launcher Sd.Kfz.251/2 Ausf.D w/Wurfrahmen40 mounted on SD.Kfz. 251/1-II) firing on Warsaw’s old town in September 1944. The Wurfrahmen 40 (“launch frame 40”) was a German World War II multiple rocket launcher. It combined a vehicle such as the SdKfz 251 halftrack or captured ex-French Renault UE Chenillette with rocket artillery to form a more mobile and protected artillery piece than the towed Nebelwerfer. It was nicknamed Stuka zu Fuss (“Stuka on Foot” or “Walking Stuka”) and Heulende Kuh (“Bellowing Cow”).[1]

Wurfrahmen mounted on Sdkfz 251 Introduced in late 1940, the weapon system was a framework with adjustable base plates fitted over and alongside a vehicle which could hold 300 mm high explosive rockets; 280 mm HE and 320 mm incendiary rockets were also used, the rockets being fired while in their loading crates. Although spin stabilized, the rockets were not as accurate as conventional artillery and reloading was time consuming due to the rocket’s weight. Rockets were ripple-fired in large numbers where feasible to quickly saturate a target. The Wurfrahmen 40 was successful in service as a support weapon for the mobile Panzer formations, particularly in urban areas.

When used on the common mounting, the Sd.Kfz. 251 halftrack, a frame with six base plates were used, with three on each side. The Chenillette UE employed either two per side or four frames on the rear. The Hotchkiss H35 mounting used two per side also. Some captured American M3 halftracks also mounted Wurfrahmen, with four frames at two per side.

TOS-1 (Russian: ТОС-1 - тяжёлая огнемётная система, English: Heavy Flamethrower System) is a Soviet 220mm 30-barrel (original system, Ob.634 or TOS-1M) or 24-barrel (Ob.634B or TOS-1A) multiple rocket launcher and thermobaric weapon mounted on a T-72 tank chassis. TOS-1 was designed for defeating enemy personnel in fortifications, in open country, and in lightly armoured vehicles and transport. First combat tests took place in 1988-1989 in the Panjshir Valley during the Soviet war in Afghanistan. The TOS-1 was shown for the first time in public in 1999 in Omsk.

The TOS-1 is not used by the artillery units of the Russian Armed Forces but is found in NBC defense units (Russian: войскa радиационной, химической и биологической защиты (РХБЗ)).

From wikipedia.

https://www.youtube.com/watch?v=5_pbaBJHN8Q

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The Rocket Launcher T34 (Calliope) was a tank-mounted multiple rocket launcher used by the United States Army during World War II. The launcher was placed atop the M4 Sherman, and fired a barrage of 4.5 in (114 mm) M8 rockets from 60 launch tubes. It was developed in 1943; small numbers were produced and were used by various US armor units in 1944-45. It adopts its name from the musical instrument “Calliope”, also known as the steam organ, which had similarly lined pipes.

Note the little “hood ornament” on the second tank.