Re: How does spin improve an arrow's perfomance?

coyote@xxxxxxxxxxxx said...
> TheGrid wrote:
> > newsgroup.only@thanks said...
> >
> >>Has anyone got a formula for calculating the area of shaped fletchings then?
> >>Or am I being dull and everyone but me is using square fletchings?
>
> The official way: develop a formula for the curve of the vane and graph
> the curve. Then use calculus to determine the area under the curve.

I beg your pardon??

> An easier, but less accurate, way: lay the vane on graph paper and draw
> around it. Count the squares it covers. If a square is partially
> covered, count if more than 50% is covered, or delete it if less than 50%.
>
Aha! That sounds a /lot/ simpler. I reckon even I can work that one
out. Thanks for that.

.

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