Del,
I think that looks pretty good. I like how you have defined the drawn shape. Is the 5/8 ratio the only cross section geometry requirement? A round belly is not required? What about the arrow requirements? Would you propose any string requirements?
Alan
IMO A D shape or round belly is a somewhat Victorian concept. Some of the Mary Rose bows are nearer round or square in section.
We could prohibit a dead flat belly by saying:-
A straight edge placed across the belly shall not sit flat but must rock to demonstrate some curvature.
But I feel it's hardly worth the effort.
Trying to define round or D shaped is an argument waiting to happen.
Marc's story of how he had to withdraw a bow because the belly was "too flat" filled me with despair, so I thought, just keep it simple.
At what point is a square with rounded corners become round?
I think the spirit of 'longbow' is established with these rules. My only reservation is length and I've been willing to compromise on that.
Arrow and string requirements are covered elsewhere I believe.
Del
BTW
I think these rules would actually translate to Warbow too, with a simple lower weight limit. Doubtless the Warbow fraternity will want to stipulate their own rules, but what I've seen of the EWBS society definition it doesn't make sense!
E.G. They should be based on MR bows but can't have reflex.... D'uh... quite a few MR bows have reflex. (OK we don't know if it was there before the ship went down)