second hand indicates “90” on the
tachymeter scale. This means that the
average speed of the vehicle is 90
kilometers (or miles) per hour.
90 (Tachymeter scale figure x 1
(Kilometer or mile) = 90 km/h (mph)
at 40 second position)
Ex. 2:
If the measuring distance is extended
to 2 kilometers (or miles) or short-
ened to 0.5 kilometers (miles), multi-
ply the figure on the tachymeter scale
by 2 or 0.5, respectively. We recom-
mend that you utilize the tachymeter
in a rally, speedway or circuit rase.
90 (Tachymeter scale figure x 2
(Kilometers or miles) = 180 km/h
(mph) at 40 second position)
90 (Tachymeter scale figure x 0.5
(Kilometers or miles) = 45 km/h
(mph) at 40 second position)
HOW TO USE THE TACHYMETER
21
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