The earliest model of a Starfleet photon torpedo with a matter/antimatter charge and an optional timer, replacing standard spatial torpedoes wth lesser contact-explosive yields and ingredients. With the upgrade on the NX-01 before the Xindi mission, the Armory's torpedo launch system is upgraded with a new firing system and a vertical rack for loading photonic torpedoes. Sim-Trip's corpse is loaded into an empty silver casing for dispersal into space. For storage, the new torpedoes can be powered down to a "safe" mode — presumably, a protection against failure of the magnetic field around the antimatter charge.