Primitive Archer
Main Discussion Area => Bows => Topic started by: Eric Garza on November 11, 2013, 09:50:12 am
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So I'm toying with investing in my first Pacific Yew stave. I know Yew is thought highly of as a wood more generally, but I have a few questions for those with more experience with wood.
1. Is the sapwood just as resistant to decay as the heartwood?
2. Can the heartwood make a good bow back?
3. Does Yew bend well with heat?
4. Does Yew benefit from heat treating?
Thanks for your time!
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ERic, I only have limited experience with yew but I'll try to abswer your questions the best I can...
Yew sapood is not as rot resistant as the heartwood.
Heartwood can probably make a good bow back but I have heard that most will back it with rawhide for security.
Yew does bend well with heat, just like osage.
I don't know about tempering but yew is very strong in compression so tempering shouldn't be necessary.
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Here's my take...
#1...no its not as decay resistant as the heartwood,but if the woods properly harvested n stored,and then made into a well made bow and taken care of right itll last a long time and outlast you...
#2. I've seen enough examples that yes it can...(although I've never done it)
#3. Yes it does bend well to heat..but not as good as osage IMO...
#4. I've found the low elevation n density yew to benefit from a light tempering...just don't overdo it,and make sure the heat doesn't wrap around n scorch the sapwood as it won't like that at all....
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the heartwood (i have heard) you need to back it. the sapwood is not as rot resistant as the heart wood. and if the yew is low density, it benefits greatly from tempering. and it does bend good with heat.
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There was a really nice all heartwood vintage Yew flight bow posted on Paleoplanet a few years back. It was exceptionally clean wood though.
The old article that started the recent heat treating phenomenon was originally a method for rejuvenating tired yew bows.
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I haven't ran into problems steaming or dry heating yew. As far as decay resistance, I don't know? It doesn't matter to me because I wont live that long! Ive never tempered yew, cant blow smoke about that.
I have a set of very nice (and old) all heartwood yew billets. Blackhawk and I have been "arguing" for 3-4 months about the best route to take in order to make the best bow they can be. We haven't resolved it......yet....I want a self bow because that's who I am, he leans towards sinew backing it.
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I think I'd go rawhide or sinew just because!
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Ahhh, your still on a sinew buzz from that stick of dy-no-mite you just finished Pat!
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Yew will be my next sinewed bow. I might try to match the other one.
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If I am adding recurves to yew I much prefer steam, dry heat seems fine for reflexing. I don't think I have ever had any kind of bow decay if it was stored in a dry place. The only problem I have had with yew is getting too dry up in Nevada. I have broken several yew bows when they got too dry out in the desert. Yew loves my coastal climate where it stays about 8%.
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1. If stored properly you can avoid the sapwood fungus.
2.yes. Yew heartwood bows have been made with great success. Some Neolithic bows where all heartwood. So they must have preferred it for some reason.
3. Yes. But steam and boiling works best.
4. You bet! Depending on the natural state of the yew being worked. I always give it I light toasting, sometimes I BURN IT. All depends.
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No, when left out in the open the sapwood will rot while the heartwood is still sound. But normal seasoning should be fine, just watch out for borers.
Don't know.
Yes.
Yes.
Del
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There's a nice all-heartwood longbow in TBB1 isn't there? Comstock?
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There's a nice all-heartwood longbow in TBB1 isn't there? Comstock?
Yes sir
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I'm just being nosey ;) but why are you concerned about decay resistance? Are you starting with a dead tree? As long as it is kept dry any wood will outlast its human counterpart.
Don
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Not much to add. I agree with what has been said.
I have found a good thorough heat-treating works great on yew. However, I am not sure I would temper the belly of an all heartwood bow.
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I'm just being nosey ;) but why are you concerned about decay resistance?
I have a theory that decay resistance correlates to resistance to deterioration, so I want to experiment with woods known for their decay resistance to see if they yield bows that shoot well for a very long time.
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I have a theory that decay resistance correlates to resistance to deterioration, so I want to experiment with woods known for their decay resistance to see if they yield bows that shoot well for a very long time.
Thanks, Sounds interesting.
Don
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A bit of heat treating works really well on yew. I wouldn't toast it, do enough to put in a little reflex and it will be a rocket launcher. Don't bend it for at least a week after heat treating, 2 would be even better.
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My goal is to source a ~60 inch stave and turn it into an all heartwood, sinew backed deflex-reflex paddle bow. I've been really into paddle bows for the last couple years.