Thunder Chief wrote on Sep 9
th, 2011 at 3:00am:
Thanks for the response.
My draw length is 34 to 36 inches. The Mary Rose bows were around 78", so that'd be the length, but I could make it longer without a problem. Poundage? Maybe 50-70 pounds.
I meant a D shaped cross section, not profile. I have heard that woods such as elm are more suited a cross section resembling a rounded off rectagle rather than the deep D shape.
What do you mean by the neutral plane? Flat on flat?
Where does one go about obtaining a hickory slat without resorting to the internet? The stores around here don't seem to sell it. How thick should said slat be?
If you can find a decent hardwood lumberyard in your area than you can probably find a hickory board. Make sure it's real hickory, not Pecan labeled as Hickory. Either have them cut it there into 3/16th inch thick slats or find a local cabinet maker or carpenter that has the tools to do the job. It's simple for a professional. It will take them all of 5 minutes to do, though they might charge you for it.
I would go with 3/16th thick , 2 inches wide and as long as the length of the board.
Don't worry about the neutral plane comment just make sure that the boards are positioned one on top of the other like a sandwich and have at it. IMHO you would be much better off simply getting your hickory slat as the back and using your denser red oak board as the belly. The two red oak boards together seems really overkill to me but then again I don't build English style warbows nor any bow that draws 36 inches. Remember the basic rule. Double the intended draw length and add 10% for most straight wood bows.
You can make it using a D cross section just understand that Red Oak is not as suited for such a cross section. It does not have the elasticity of yew therefore there will be a lot more string follow in the finished bow. It is not the type of bow I would try to make from Red Oak if I was relatively new to bow making. In fact it is just not the type of bow I would try to make from Red Oak, period. But it's up to you. It will be a learning experience if nothing else.
Don't let that deter you though. Make what you like.