Static Recurve ?'s

[heartlandbowyer]

Hey guys, I'm thinking about trying a static curve. Have no clue about the stack, lam stack and taper. Is there a tip wedge to keep the tip static, or just reverse taper in the lam.

Any help would be great, I hate screwing new designs but I know it's part of the process.

Thanks Cory

[David Flanrey]

Cory,
Can't really help yet.  I am building my first one now.  I own one that I am copying.  Had to give my best guess on the stack.  We'll see I guess.

[monterey]

The only static recurve I have is a Howatt Cavalier.  It's on my to do list to make a copy of it but too many other things to finish first.

One wood lam is parralel and the other has the taper.  Now, the tapered lam has the thickening ground into it on the tip end, so there is no wedge.  Wedge is ground into the taper.

The bow is 62" and labeled 55# at 28".  Actual draw weight is 50# at 28".  The riser is 23" long.

The thickest part of the stack that I can measure is just past the fades and at that point is .289.  The taper to the limb seems to be .035 per inch.  It is my own opinion on this bow that it bends to much at the inner limb just beyond the fades.  When I build I'm thinking of going with a .004 taper but am not done thinking that through yet.

If it would help, I can take some pics and put them up here for you.

[Swissbow]

This one had static recurves in the beginning, but it was a bit to hard to draw. So I made the recurves a little bit narrower and the recurves start to open towards the end of the draw.

 

The bow is 62" long and the draw weight is 55@27. The stack is 0.240" and the lams are all parallel. The limbs are made of two lams of hard maple, a layer of carbon ( 0.020" ) and black glass on the back and the belly.

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Andy

[JJB]

Nice looking bow there Andy.
-Jay

[savage1]

Without knowing your design or profile anything is just a guess. If your mind is made on that form then just look at the bingham recomendations
and or talk to Kenny. You need to break ground. You might get luck the first time out. Leave your profile a little wider on the first one by an 1/8th per side and check your weight, you can always take more off.

Lou

[Pat B]

I have an older Mike Treadway longbow. It is a straight limb bow anbd not a recurve but Mike added a reverse tapered lam in the stack, making the tips rigid. This should work for a static recurve also.