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Lightweight chassis for Krab support vehicles can serve broader purpose

28th September 2021 - 11:54 GMT | by Grzegorz Sobczak in Warsaw

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M120G Rak self-propelled mortar, pictured at MSPO 2021 on the latest lightweight tracked chassis developed by HSW. (Photo: Grzegorz Sobczak)

Versatility is the watchword for a new tracked vehicle chassis developed by HSW in Poland.

At MSPO earlier this month, Huta Stalowa Wola (HSW) displayed for the first time a new lightweight tracked chassis for Krab self-propelled howitzer (SPH) command post and reconnaissance vehicles.

Until now, HSW based these vehicles on overhauled ex-Polish Army 2S1 Gvozdika 122mm SPH chassis — but their limited quantity prompted the company to develop a completely new design.

The new lightweight tracked chassis — which resembles that of the Borsuk IFV — has a newly constructed traction system with 12 road wheels, two fewer than the 2S1. Thanks to its hydropneumatic suspension, vibrations and shocks while driving have been reduced …

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