120 mm rocket-assisted HE bomb PEPA

housed in a tube, externally inhibited, with a venturi at the end. The venturi is secured at the tail end by an obturator containing an optional delay and a selection lock, this allows the use of the solid-fuel propulsion unit if required. A spring catch holds the selection lock in the required position. The propulsion charge consists of the primary cartridge and up to seven secondary increments. The tube holding the primary cartridge contains the flash-holes communicating with the secondary charges and is ejected after the bomb is fired. In use the order of events is as follows. The bomb is removed from the container and the charge system adjusted by the removal of unrequired secondaries. If the rocket assistance is required, the tube containing the primary cartridge is rotated clockwise. The fuze V19 P is then set for instantaneous action or delay. The bomb is drop loaded and fired in the usual manner. If rocket assistance has been selected the flash from the primary cartridge ignites the delay unit, this burns through and lights the rocket motor as the bomb approaches the vertex of its trajectory. The rocket thrust thus drives the bomb to a new vertex and increases the range. Manufacturer TDA .