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Author Topic: Flight bow failure  (Read 2749 times)

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Offline Mark Smeltzer

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Flight bow failure
« on: August 28, 2018, 09:29:16 pm »
Been playing around with this design specifically for flight Archery.  It shot super fast but I may have pushed it too far. Here's what it looks like after it turned inside out on me. It was 60" 50# @ 25"...ish Sinew and Pacific Yew.



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Offline osage outlaw

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Re: Flight bow failure
« Reply #1 on: August 28, 2018, 10:21:33 pm »
Ouch  :o
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Offline DC

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Re: Flight bow failure
« Reply #2 on: August 28, 2018, 10:43:34 pm »
That'll buff right out ;D ;D
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Offline bjrogg

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Re: Flight bow failure
« Reply #3 on: August 29, 2018, 04:12:58 am »
Quote from: DC on August 28, 2018, 10:43:34 pm
That'll buff right out ;D ;D
Hehe that's a funny one DC. Nice try Mark. I've seen Ed do them with sinew backing and horn belly. Always impressed to bageebeis out of me.
Bjrogg
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Offline Del the cat

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Re: Flight bow failure
« Reply #4 on: August 29, 2018, 05:41:22 am »
Bwhaaaaaa  :'(
Del
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Offline Mark Smeltzer

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Re: Flight bow failure
« Reply #5 on: August 29, 2018, 07:21:02 am »
I bet the horn belly would help and I lost too much heart wood on tillering I think. Wider and flatter for the next one. That did sting a bit and sure gets your attention quickly  :o
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Offline Marc St Louis

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Re: Flight bow failure
« Reply #6 on: August 29, 2018, 07:23:46 am »
That is nasty.  High reflex bows can be very touchy especially at first brace and any sideways bend has to be dealt with right away
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Offline BowEd

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Re: Flight bow failure
« Reply #7 on: August 29, 2018, 07:44:47 am »
Mark I see no pics of your bow.
« Last Edit: August 29, 2018, 08:21:58 am by BowEd »
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BowEd
You got to stand for something or you'll fall for anything.
Ed

Offline upstatenybowyer

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Re: Flight bow failure
« Reply #8 on: August 29, 2018, 09:20:53 am »
Well at least the sinew came off pretty clean! Sorry for your loss.

RIP
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"Even as the archer loves the arrow that flies, so too he loves the bow that remains constant in his hands."

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Offline DC

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Re: Flight bow failure
« Reply #9 on: August 29, 2018, 09:27:26 am »
Did the sinew come off or did it split the wood?
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Offline Mark Smeltzer

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Re: Flight bow failure
« Reply #10 on: August 29, 2018, 10:03:46 am »
When the bow turned inside out after the shot, the belly failed as there was nothing to stop the tips from continuing forward. I pulled the sinew off myself. This was a very unstable and sensitive bow and I was shooting it at a fairly low brace.
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Offline Eric Krewson

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Re: Flight bow failure
« Reply #11 on: August 29, 2018, 02:38:22 pm »
Sinew will pull a weak bow apart. I tried to glue up the crack but it pulled apart again.
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Offline Mark Smeltzer

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Re: Flight bow failure
« Reply #12 on: August 29, 2018, 06:15:45 pm »
Definitely some power in sinew and I laid it on pretty thick with a high crown for that one.
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Offline George Tsoukalas

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Re: Flight bow failure
« Reply #13 on: August 30, 2018, 07:43:19 am »
Wow!
I've had sinew pull apart but I don't think I've had a break like that.
But I don't push limits.
Jawge
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Offline loefflerchuck

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Re: Flight bow failure
« Reply #14 on: August 30, 2018, 09:24:56 am »
That will happen with a narrow tip contact recurve. I had that happen the other day with sinew backed juniper. 60" long with 5" reflex. 50# @ 28". In my case the low brace saved it from breaking. It still shoots fine. I had just added little horn nocks that increased the recurve just a tiny bit and made this happen. I got home and filed in new nocks 1/2" below and it's back to stable again.

Eric, my most used personal bow has huge cracks like that all up and down the sides. 49" sinew backed juniper 25-26" draw 48#. I have shot it thousands of times over the last 3 or 4 years. I started to see little signs of wood cell breakdown on one section of the limb finally but have never had a problem with these sinew cracks except they are ugly.
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