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discussion of dimension of a laminated bow over 150lb

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leehongyi:

--- Quote from: Marc St Louis on February 20, 2015, 10:43:19 am ---I made this bow for a guy to shoot at the flight shoots in 2006.  It was a Bamboo backed Bubinga around 72" long.  I had tested the bow with my crappy scale at around 150# @ 30".  When he got it his scale said it pulled more like 165#.  It was a handful

--- End quote ---

Amazing！
can you share the thickness and width taper?

leehongyi:
i thought that a bow over 150lb could not be shorter than 190cm（76“）, or it would induce a lot of set. maybe i should change my opinion.

Marc St Louis:
This was a long time ago and I don't remember all the details on the bow but it was about 1 1/4" wide.  I know I kept the Bamboo fairly thick as well.

The length of a bow has nothing to do with draw weight, only draw length.

adb:
The dimensions of a bow really have more to do with material than anything. A denser wood will need to be proportionately smaller. I currently have two 120# warbows. Both laminates. One is maple backed yew. The other is hickory backed ipe. Both are fully drawn to 32". The yew bow is 80" long, 1.5" wide X 1.25" deep at the grip tapering to 1/2" nocks. The ipe bow is 76" long, 1.25" wide X 1.125" deep tapering to 3/8" nocks. They both weigh roughly the same (the ipe bow is just a smidge heavier actually). In other words, design according to material.

leehongyi:

--- Quote from: adb on February 26, 2015, 08:44:44 pm ---The dimensions of a bow really have more to do with material than anything. A denser wood will need to be proportionately smaller. I currently have two 120# warbows. Both laminates. One is maple backed yew. The other is hickory backed ipe. Both are fully drawn to 32". The yew bow is 80" long, 1.5" wide X 1.25" deep at the grip tapering to 1/2" nocks. The ipe bow is 76" long, 1.25" wide X 1.125" deep tapering to 3/8" nocks. They both weigh roughly the same (the ipe bow is just a smidge heavier actually). In other words, design according to material.

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thank you so much. that means a boo-backed bow should be more thinner. did you taper them straight or a little thicker at grip?

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