[2] The first technology demonstrator of the new Borsuk IFV was unveiled at the MSPO 2017 exhibition with a more refined version being shown a year later.
The new version presented in 2019 at MSPO exhibition had redesigned trim vane (it now rises from the top of the hull instead of the front as before), new headlights, different add-on armor and mounting points for mobile multispectral camouflage.
[5] In September 2020 the prototype successfully completed a series of extensive military hands-on trials conducted at Drawsko Training Ground (including a set of firing tests).
During the presentation it was announced that the qualification trials are expected to be completed by mid-2023 and that the 16th Mechanised Division will be the first recipient of the new vehicle.
The same announcement also suggested that other types of ATGMs will be integrated with the ZSSW-30 turret and that the Borsuk's chassis will become a base for additional specialized vehicles.
[9] According to the information provided by Col. Piotr Paluch during the meeting of the Standing Subcommittee for the Polish Defense Industry and Technical Modernization of the Polish Armed Forces (Podkomisja Stała do Spraw Polskiego Przemysłu Obronnego oraz Modernizacji Technicznej Sił Zbrojnych Rzeczypospolitej Polskiej, or OBN05S in short) which took place on July 6, 2023, the price of the Borsuk prototype with the ZSSW-30 turret was estimated at 36 million PLN (around 9.2 million USD at the time) as of 2020.
[10] The planned variants include:Borsuk prototypes are fitted with a powerpack consisting of a 720 hp (530 kW) MTU 8V199 TE20 turbo diesel engine which drives a Perkins X300 automatic transmission.
Borsuk is able to use either steel or Soucy Defense's composite rubber tracks (CRT), with CRTs being preferred by the military.
[2] Use of a separate ATGM launch container, as opposed to other systems where launcher extends directly from an internal compartment of the turret, has some advantages.
[2] Borsuk's chassis is made out of welded Armox 500T steel plates of varying thickness[15] arranged in such a way that they can function as spaced armor.
[1] Unofficial sources claim that Borsuk could be even better armored, with its chassis being able to stop Russian 30mm 3UBR6 and 3U8R8 rounds from the frontal arc (±30° from the centerline) and 12.7mm and 14.5mm from the sides, even though the latter type may cause some damage to the engine block.
[17] The armor protection of the ZSSW-30 turret is not disclosed by the manufacturer, but according to unofficial sources, the armour consists of a thin layer of polyethylene fabric sandwiched between two steel plates and an additional piece of ceramic composite armour (two steel plates with alumina tiles in between) on the ATGM container.
When the trim vane is extended, it obstructs the view from the driver's periscopes, so a camera is mounted on a trim vane to provide vision for the driver when crossing water obstacles.The vehicle is also equipped with the SOD (System Obserwacji Dookrężnej) omnidirectional observation system designed by WZE which consists of three camera modules (each with three daytime and three night vision cameras), image processing module, control computer and displays for the dismount compartment.
In the future the SOD system can be integrated with AR goggles for the crew and AI algorithms for faster classification of surrounding objects.
The commander's sight is mounted on top of the turret in an armored cover and provides 360° field of view with elevation angles from -20° to 60°, and the gunners sight provides elevation angles from -10° to 60° and is mounted on the left side of the turret and can be covered by an armored door.
Both are equipped with an eye-safe laser rangefinder and two optical channels: daytime, with a light intensity sensor and thermal.