The gravitic drift compensator was a component of the Doctor's TARDIS.
The Fourth Doctor admitted that he did not know what a gravitic drift was, but told Leela that it was useful to take precautions so that one does not get stuck in one. (AUDIO: The Renaissance Man)
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.