posted
Here's an example of the wood t/d arrows that used to be available at Screaming Eagle (Paul Brunner-too short)...they belong to a buddy that worked for Paul at SE here in Missoula back in the day.
These were made to slip fit using two different sizes of aluminum shaft. The cut-in-half wood shaft is reduced in diameter for each shaft size, the smaller obviously slip fitting inside the larger....the larger is exactly the same diameter as the wood shaft. These are really well done and have a super tight fit and seemless transition. -Rob
-------------------- >>>--TGMM-Family of the Bow--->
People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf. - George Orwell Posts: 567 | From: MT | Registered: Aug 2004
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posted
The portability / compactness aspect is appealing.
One of the reasons I consider my current takedown bow case:
a prototype, is that it's too small to accommodate arrows for my 29" draw length --- the next version will be 34 and a half by 11 and a half by 3 and a half inches. (The other reason is I want to use nicer, solid brass hardware --- if someone knows of a source for small solid brass draw catches let me know.)
Is there a size of carbon shafts which will nestle inside Carbon Express Heritage 150 arrows? If so, would that be "livelier" than an aluminum insert?
Posts: 105 | From: Pennsylvania | Registered: Sep 2010
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posted
Interesting thoughts. One thing that occurred to me:
I would consider making the cut below the fletch somewhere...probably at my cresting (yes, I hand-crest my Bemans). The shaft would not be split exactly in the middle which is theoretically where the most flex (stress) occurs. I would then be able to use my cresting design to conceal the joint. The end result would still be arrows that are much easier to travel with, or backpack, and they would still have the aesthetic appeal of a one-piece arrow.
Posts: 843 | From: OH - Buckeye Country | Registered: May 2004
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posted
be interesting to see how a rear sectioned t/d arrow performs. the other question is, how long will the longest section be?
fwiw, i just made a pair of carbon t/d arrows that are cut asymmetrically with regards to the shaft itself, but will render equal halves when the nock and broadhead lengths are added into the equation. the results for a 29" arrow is a 13-1/2" front end and 15" back end (for the shaft alone). i'm waiting for the epoxy to fully cure on the insert adapters, and then will test out both types (bare shaft and with 5-1/4" full helical burnt fletches), to see how they fly and perform. i need to also compare 1pc and 2pc arrow weights and foc. the fun never ends, eh?
-------------------- "Molon Labe" (Come and Get Them) ~ Instinctive Archer Magazine ~ TGMM Family of the Bow ~ NRA Life Member Posts: 8858 | From: NJ | Registered: Mar 2003
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posted
that woodie t/d arrow appears to be all about carefully turning down the cut ends. not easy, i'd think, with what's an 11/32" dowel. plus, there is no locking of the aluminium sleeves, and it's a friction fit all the way. if a section of woodie could be chucked into a lathe and then dead center drilled for pair of glued-in bushings, that might just work.
-------------------- "Molon Labe" (Come and Get Them) ~ Instinctive Archer Magazine ~ TGMM Family of the Bow ~ NRA Life Member Posts: 8858 | From: NJ | Registered: Mar 2003
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posted
If you watch one of his videos he talks about how the cut/joint needs to be made front of center. I'd post it but I did that last week and the thread got pulled. Search Youtube for "SlingBow DVD"
-------------------- Time is a great teacher, but unfortunately it kills all its pupils. Posts: 1823 | From: Escondido,CA. | Registered: Apr 2003
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quote:Originally posted by MikeW: If you watch one of his videos he talks about how the cut/joint needs to be made front of center. I'd post it but I did that last week and the thread got pulled. Search Youtube for "SlingBow DVD"
your topic post was removed because it had nothing at all to do with traditional archery/bowhunting, sorry. we'd do the same for atlatls and xbows and blowguns etc.
you do NOT need to cut the shaft in any particular place for "foc balance". the feller in that utube video appears to have no clue about arrows and traditional bows.
for the 29" feathered t/d arrow in the above pics ...
- the twin alum insert and 1-1/8" 8-32 thread steel rod weigh about 75gr.
- with 250gr up front, the foc is 22.2%.
- with a 125gr point it's almost 16%.
the 29" beman ics 500 hunter/venture, w/3-fletch + point insert and no point digitally weighs 334grs. adding a 250gr point makes the mass weight 584 grains.
-------------------- "Molon Labe" (Come and Get Them) ~ Instinctive Archer Magazine ~ TGMM Family of the Bow ~ NRA Life Member Posts: 8858 | From: NJ | Registered: Mar 2003
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posted
If you guys say these shoot OK then I'm a believer but the anal retentive me wants to think the joint won't flex and will affect paradox. Kind of like and old style fishing rod ferrule before the ones that flexed.
-------------------- PBS Reg member 1973 Maryland Bowhunters Society Traditional Bowhunters of Maryland Heart of Maryland Bowhunters NRA Posts: 3357 | From: Finksburg, MD | Registered: Aug 2008
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posted
You might be correct. Best way to know is check point of impact on t/d vs 1 pc arrows. Proof is in the pudding. Even a difference in POI might not be a deal breaker.
Posts: 843 | From: OH - Buckeye Country | Registered: May 2004
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posted
If the joint in the middle of the shaft doesn't flex like the original shaft,you have a stiffer shaft.You just tune with more point weight.
Since this thread started,I took mine out and shot them a couple times.I hadn't touched them for 2 or three years.I couldn't remember how much tuning I did initially but did see that they had 200 gr points and that isn't a common weight for me.They shot very well and seem to fly straight.I found one that was uncut and it had a 145 gr point on and they all grouped together.I don't have a bare shaft one.
The joint seems to have added app. 74-75 grs.
It would be interesting to put them on a spine tester,before and after.
Posts: 2991 | From: Montana | Registered: Aug 2008
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all four 29" arrows were static spine tested on an ace model 107 spine-spine tester at .530 - there was no measured spine increase on the sectioned t/d arrows. the t/d arrow sections will all fit inside of 16".
test results -
i just spent over an hour shooting the t/d carbons and their 1pc twins. i was surprised to find no difference in arrow flight with the bare shafts at 10 yards. i mean NO difference. i know, i Know, i KNOW - there's a really stiff 2" center section on the t/d's that you'd think would radically alter the *dynamic* spine (at least i sure thought that would be the case), but i did NOT see, feel or hear any added spine stiffness at all. ditto for the feathered versions. the bare shaft 1 and 2 pc arrows flew beautifully, almost as if they were fletched. i could hit or scare the heck out of a soda can at that 10 yard distance with all four arrows (one each bare/feathered 1pc and t/d). going back to 20 yards the groupings opened but the arrows flew quite well as long as i did my part (form).
my assessment of these particular t/d carbons -
very viable, work like a 1pc for me, adds about 75gr to the arrow's mass weight, loses about 2-4% foc - if the shaft is cut so that the rear length is about 52-55% of the total shaft (not arrow). i still have no current need or use for t/d "stealth" arrows, but this was an interesting and fun project.
-------------------- "Molon Labe" (Come and Get Them) ~ Instinctive Archer Magazine ~ TGMM Family of the Bow ~ NRA Life Member Posts: 8858 | From: NJ | Registered: Mar 2003
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