Co-driver
The second team member alongside the driver; handles navigation, timing and reading the roadbook.
The co-driver, also called the navigator, is the second member of a rally team alongside the driver. While the driver concentrates on steering, the co-driver handles the navigation: reading the roadbook, keeping an eye on the times, operating the stopwatch and tripmeter, and calling out when to speed up or slow down.
In a regularity rally the co-driver is at least as important as the driver, since the precision of meeting the target time depends largely on their work. A good co-driver has a strong sense of orientation, works methodically even under time pressure and communicates clearly with the driver. Experienced teams develop an almost blind understanding over time.
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Related terms
Chronometer
The navigator's precise timing instrument for checking target and actual times while driving.
Pre-war vehicle
Vehicle from the era before the Second World War, usually up to the 1939 model year. The term is not officially defined; the cut-off varies by source.
Light barrier test
A regularity test in which timing is controlled by photoelectric light barriers. Timing starts at the first barrier and ends at the second, triggered by the front of the car rather than the wheels.