Planet killer
- Massive vessel constructed as anti-Borg weapon in distant past (TOS: "Doomsday Machine"; TNG Novel: Vendetta)
- Prototype vessel shaped as a massive hollow cone
- Approximately 2700 meters long, approximately 500 meters at its widest point, with a hull thickness of about 25 meters
- Per ST Minutiae, extrapolating from presented approximate length as calculated from "Doomsday Machine"
- Approximately 2700 meters long, approximately 500 meters at its widest point, with a hull thickness of about 25 meters
- Later construction similar in shape, much larger in size (TNG Novel: Vendetta)
- Rediscovered just outside galactic barrier, piloted by Delcara (TNG Novel: Vendetta)
- Hundreds of miles long (TNG Novel: Vendetta)
- Chief weapon is a beam of pure antiprotons (TOS: "Doomsday Machine")
- Also used to deconstruct, absorb planetary material for fuel (TOS: "Doomsday Machine")
- Hull armor composed of neutronium with an underlying layer of rodinium (TOS: "Doomsday Machine"; TNG Novel: Vendetta)
