FH-77BW L52 Archer Swedish 155mm Self-Propelled Howitzer (SPH)

The FH-77BW L52 Archer Swedish 155mm Self-Propelled Howitzer (SPH) are based on modified versions of two articulated all-terrain haulers developed by Volvo: the 30E 6×6 and VME A25C 8x8 articulated haulers. The chassis of both these haulers are modified to accept the 155 mm/52-calibre weapon and have a fully-armoured cab and engine compartment fitted at the front. The cab has single doors on either side and one at the rear, bullet-resistant and fragmentation-proof windows, and can accommodate a six-person crew. Mounted on the roof of the cab is a Norwegian Kongsberg Protector Remotely operated weapon system (ROWS) armed with a stabilised .50 M2 HB MG. The ordnance and the automated ammunition handling compartment is mounted at the rear end of the articulated hauler. The 52-calibre barrel has a MVS-470 muzzle-velocity radar, which feeds information into the onboard fire control computer. When deployed in the firing position, a large hydraulic stabiliser is lowered at the rear of the chassis to provide a more stable firing platform.