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Anyone have experience with Hollow Back Bows?

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RedSpectre:
Hello friends.

Has anyone had any success or have examples of successfully made bows where the BACK is hollowed out instead of the belly.

The only example I've seen was one by Jan De Boogerman and what seemed to be Scottish bows.  Maybe some experts might be able to chime in and give me some more examples I'm missing and why these would even work.

Im working on a bit of a thought experiment and I figured all of the information I can get would help move this along to production phase.

Thank you in advance.

bjrogg:
It seams like I remember seeing one on he once. Basically they chased a ring on the side of stave that we would normally use as our belly. This gave it a hollowed back. I don’t think the one I’m thinking of was radically hollowed as much as concaved.

Bjrogg

RedSpectre:
Hey, Bjorrg.  Thanks for responding. 

What would be the difference between hollow and concave?  I'm assuming it's a low crescent but...  I know that's a noob question but bare with me.

bjrogg:
Really only difference would be that the one I seem to remember was probably from a larger diameter tree so the hollow wasn’t as deep as if you chased a ring in a smaller diameter stave or closer to the core of the tree.

I have never tried it and I can’t remember who posted it. Not very common for sure.

Bjrogg

Pappy:
I have built a few, just keep the belly rounded so you don't end up with rails down the sides of the limbs, being careful the keep the same thickness across the limbs. I have done it on Osage using a french curve scrapper to follow the same grain down the center, slow work but about the only way I know to do it. A picture of what you are working with might help with some ideas.  ;)
 Pappy

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