
Voyager firing photon torpedoes

Specifications
The type 6 photon torpedo was a type of photon torpedo used by Intrepid-class starships. The USS Protostar was also equipped with this type of torpedo. (PRO: "Lost and Found")
The specs for this type of photon torpedo were as followed:
- Body: 210 cm long and 76 × 45 cm across
- Weight: 247.5 kilos when not loaded
- Warhead: maximum of 1.5 kilos of antimatter
- Mid-range yield: 3,500,000 kilometers
- Blast zone: 300 kilometers
- Guidance system enabled
- Speed up to vmax = vl + (0.75 vl / c)
In 2370, B'Elanna Torres programmed the Cardassian ATR-4107 shields to adjust to all known weapons, including those used by Starfleet. When she last accessed the missile on stardate 47582, the USS Voyager, which was equipped with this type of torpedo, was not in service.
In 2372, Voyager attempted to disable the missile's drive systems with torpedoes. As the torpedoes approached the missile, it scanned the weapons and adapted its shields. The torpedoes exploded harmlessly against the shields and the missile was undamaged. (VOY: "Dreadnought")
In 2375, Ensign Harry Kim suggested beaming one of Voyager's type-6 photon torpedoes over to an attacking Borg probe as they remodulated their shields in attempt to disable the vessel. Since the torpedo detonated near the power matrix, it instead caused the destruction of the Borg ship. (VOY: "Dark Frontier")
A type-6 photon torpedo from Voyager was on display at the Museum of Kyrian Heritage in 3074. (VOY: "Living Witness")