The 155 mm HE ERFB RA/BB (VLAP) projectile belongs to new generation of very long range artillery projectiles designed for importantly improving operational range performances of a modern towed and self-propelled 155 mm gun - howitzers with 39, 45 and 52 calibre barrel length. The projectile design combines rocket motor and base bleed units in single projectile. Hybrid rocked assisted/base bleed projectile is extending the operational range of 155mm gun-howitzers from 10+ km to more than 20 km in comparison with standard ERFB/BB projectiles, depending on the barrel length and charge used.
It complements existing HE, HE ERFB/BT and HE ERFB/BB ammunition systems providing greater ranges, with no special training or logistic. 155 mm HE ERFB RA/BB enables users to engage enemy targets at greater ranges, whilst being well beyond the range of their counter battery fire. It also enables long range harassment fire onto enemy logistic lines, forcing them to deploy an additional 10 - 20 kilometres from the front edge of the battle area. Its terminal effectiveness (blast and fragmentation) is due to smaller HE charge slightly different, but not importantly lower than HE ERFB/BB round.
