C7 BLUEBIRD â Limited edition - Christopher Ward
C7 BLUEBIRD â Limited edition - Christopher Ward
C7 BLUEBIRD â Limited edition - Christopher Ward
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Operating instructionsUsing the tachymetric scale to calculate speedExample: calculating the speed ofa race car over the course of a mile.Record the time the race car takes to covera known distance of 1 mile. Read off thespeed on the tachymetric scale indicatedby the central seconds hand. In this case,the race car is travelling at 85mph.ATachymetric ScaleB20