Weights and measurements of fly fishing?

I am writing a paper on how fly fishing is related to physics and need some averages in order to do calculations.

Average length of rod. I came up with 8.5 feet. Does this seem accurate?
Average mass of rod? Measured in grams, kilograms, or pounds.
Average mass of line and fly?
Average time it takes to move wrist 45 degrees during cast?
Average time line is in the air – measured from after wrist movement is done until the fly hits the water?

Thanks!!

Fly fishing- how much and where do I put gink?

Im going fly fishing for my first time and I need to know how much and where I put the gink on the dry fly. I am leaving soon

How do I attach my landing net to my fly fishing vest?

I know the magnetic releases are great, but I don’t really want to drop the twenty bucks on one if there is a simpler solution.