The LPG WDSz is a Polish tracked command-staff vehicle built by Huta Stalowa Wola for the Regina fire module that fields AHS Krab 155 mm self-propelled howitzers. It uses the LPG light tracked chassis as a protected command, communications, and fire-control node rather than as a primary weapon, and Ukrainian reporting documented the type in service with Krab batteries after Poland supplied Krab-related equipment during the full-scale phase of the 2014 Russia-Ukraine War.
Oryx listed LPG WDSz command vehicles among Polish military aid delivered to Ukraine in June 2022, while ArmyInform and Defence24.com described Ukrainian Krab batteries using WD/WDSz command vehicles for battery control, movement directions, and fire-tasking.
Role detailsHSW describes the WDSz/WD family as a command vehicle set whose telecommunications and information systems help artillery commanders process reconnaissance information, direct fire, and organize command points. Ukrainian reporting gives the same role a battlefield context: command vehicles linked individual Krab guns, passed movement points, and let platoons work on separate axes when the battery dispersed.
TOPAZ-based command and fire-control work for Krab-equipped artillery units.
Internal and external radio and FONET communications equipment for battery or division command.
Tracked armored vehicle with STANAG 4569 Level 1 protection and a defensive 7.62 mm machine-gun station.
Sources: HSW WDSZ WD Official Product; ArmyInform Krab Command Vehicle; Opisy Broni WDSz.
Public sources usually discuss the LPG-based command family as two closely related Regina support vehicles: WDSz for command-staff functions and WD for command posts at lower artillery echelons.
| Variant | Configuration | Designation notes |
|---|---|---|
| WDSz | Command-staff vehicle | HSW describes the WDSz/WD vehicle family as a command-staff and command vehicle set used by the armed forces; Defence24's Regina module breakdown assigns two WDSz vehicles to the division commander and chief of staff. Sources: HSW WDSZ WD Official Product, Defence24 Regina Module |
| WD | Command post vehicle | Defence24 describes the Regina module as including WD command vehicles for battery commanders and fire-platoon commanders, also on LPG tracked chassis. Sources: Defence24 Regina Module |
| LPG Hydro WDSz/WD | Modernized command-family chassis | Polska Zbrojna reported newer WD and WDSz vehicles on LPG Hydro chassis with a changed hull and hydropneumatic suspension reaching 5 Lubuski Pulk Artylerii. Sources: Polska Zbrojna New Krab Deliveries |
The WDSz is cataloged here because sources identify it as part of the command-and-control package around Krab-equipped Regina fire modules and Ukrainian Krab batteries.
| Compatible item | Item type | Compatibility evidence |
|---|---|---|
 | 155 mm tracked self-propelled howitzer | HSW and Defence24 tie the WDSz/WD command vehicles to Regina fire modules for AHS Krab howitzers, while Oryx listed the Ukrainian transfer as a command vehicle for the AHS Krab SPG. Sources: HSW WDSZ WD Official Product, Defence24 Regina Module, Oryx Polish Military Aid |
Opisy Broni traces the first LPG prototype to 2009, before the WDSz command-staff fit was installed and tested.
Sources: Opisy Broni WDSz
Opisy Broni says the first WDSz prototype and two WD command vehicles were handed to the Polish Army with the first Krab division fire module.
Sources: Opisy Broni WDSz
Oryx listed LPG WDSz command vehicles under Polish command-vehicle aid to Ukraine in June 2022, tied to AHS Krab self-propelled guns.
Sources: Oryx Polish Military Aid
ArmyInform reported a Ukrainian self-propelled artillery battery commander's description of using two command vehicles to coordinate six Krab howitzers and pass movement or fire-tasking information; Defence24.com later summarized the same Ukrainian WD/WDSz fire-control role.
Sources: ArmyInform Krab Command Vehicle, Defence24.com Polish Artillery NATO Standards
Defence24 reported the probable first documented Ukrainian loss of a WDSz command-staff vehicle supplied with Krab-related support equipment.
Sources: Defence24 Ukrainian WDSz Loss
Polska Zbrojna reported that new Regina-module deliveries included WD and WDSz vehicles based on the LPG Hydro chassis, with a changed hull and hydropneumatic suspension.
Sources: Polska Zbrojna New Krab Deliveries
