Can anyone tell me if the percent of a grade is measured using the horizontal distance or the running distance?
I know it doesn't make a measurable difference on usual RR grades, but Mt Washington cog has a 37% grade and that might make a difference.
I also read a reference where straight up and down was 100%.
I know it doesn't make a measurable difference on usual RR grades, but Mt Washington cog has a 37% grade and that might make a difference.
I also read a reference where straight up and down was 100%.