Abstract: A tape transport apparatus for recording tape having a rotationally driven tape drive capstan for advancing the tape and a pinch roller for firmly engaging the tape with the tape drive capstan includes a rapid tape advancement feature. Clutch devices selectively couple rotational driving force to the tape drive capstan from a first normal playing rate motor devices or a second high speed advancement motor devices. The clutch devices are centrifugal force-actuated and of a ratchet-like nature. A rotating element connected to the tape drive capstan includes a code, and a sensor which senses the code and derives signals indicative of each revolution of the tape drive capstan. The signals are electrically processed and an accurate measurement of the extent of tape advancement is obtained and displayed.