JimInOz
··Melbourne AustraliaThank you, MMMD. 👍 We can measure the distance of lightning with this, can’t we?
Yes, and the inner scale is your tachymetre with a base 1 mile which means you start the chrono when the vehicle passes the start of a measured mile and stop it when the vehilcle crosses the mile marker. The chrono hand will indicate the speed in MPH.


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