Reply to "Steel tape recommendations"

Thanks for sharing that table and working through this.

Based on that and assuming that all other potential errors in the measuring process were zero, using a class II tape with a tolerance of +/- 20.3mm on 100m, would result in a potential error of +/- 2 meters on a 10k course. So, somewhere between 998m and 10,002m.

Reading back through the manual, it sounds like the short course prevention factor, accounts for any of the above error: "This lengthens the course by one meter per kilometer or 5.28 feet per mile." That's an addition of a whopping 10 meters on our 10K!

Still, I would think we would want to be as accurate as we could.

I did find that you can buy calibrated tape measures traceable to the NIST. They would come For example: https://www.mcmaster.com/calibrated-tape-measures/

Thanks again!

My best,

Tim

1/24/233:25 AM

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