If two TARDISes occupy precisely the same point in the Vortex (such as from a failed attempt at Interlock), then Time Ram occurs. It is one of the most dangerous things that an operator can do with a TARDIS. During Time Ram the atoms making up two TARDISes occupy exactly the same space. This is enabled by careful manipulation of the Time Sensor control. The chaotic forces between the two overlapping ships will grow until one of them explodes. While the attacking TARDIS sometimes survives in a Time Ram, a more likely outcome is that both TARDISes will be destroyed, as well their Eyes of Harmony. This will result in the uncontrolled release of enough Energy to destroy most of a solar system.
There is, however, there a small chance that one of the TARDISes will evaporate and the other will survive. In this case the energy released would only destroy all matter in a 2.4 km (1.5 mile) radius.
The following color code is used:
- Black: For information from the TV Series, including Dimensions in Time, and 1996 TV Movie.
- Blue: For information from the Novels and Audios including Target, Virgin, BCC, and Big Finish.
- Green: For information from 'licensed' reference sources such as the Technical Manual, Doctor Who Magazine, and the Role Playing Games.
- Red: For information from unofficial sources -The Faction Paradox series, behind the scenes interviews, author's speculation, and popular fan belief.
The TARDIS Technical Index is copyright Will B Swift.