Trad Gang
Main Boards => PowWow => Topic started by: wingnut on January 08, 2015, 12:06:00 PM
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Well the new triple carbon version of the ACS LB limb is ready for the market place. As you know we do a lot of stress testing on our products before we put them up for sale. This long limb mounted on a 15" riser endured 215,000 cycles drawn to 30". That's 3" beyond the recommended max draw on that 60" setup.
The limbs are available in both ILF and for the Orion Bolt-down riser.
Our testing shows this as the fastest limb we have in our stable. I'll let John share any tech data he wants but let's say that on a 17" riser the 62" bow shot at 28" and 9 gpp is as fast an any recurve we have tested.
John is going to put some pics up today to show them on different length risers.
We are pricing them at $675.
Mike
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Sounds great,looking forward to seeing the pic's.I know my Dryad Orion ACS RC shoots a pretty fast and flat arrow!
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Maybe its a good thing I couldn't afford to pull the trigger on a second Orion (for myself) during this past Black Friday sale... gives me something to look forward to when I do put the funds together!
I appreciate that you keep looking for ways to improve an already excellent product.
Rando
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A few photos on different risers.
To clarify what Mike said just a bit more about performance. This is the fastest ILF longbow limb I've ever tested. I have tested two ILF recurve limbs set at essentially the same brace height that were 0.5 fps and 2.0 fps faster than this ILF LBX longbow limb. So it's fair to say that there are a couple of recurve limbs at a lower brace height that will exceed its performance a small amount but I've never tested any ILF longbow limb that would come close. Perhaps there's one out there but if so I haven't found it yet.
The bolt-down version will be a bit quicker because we have the luxury of precisely optimizing riser and limb geometry so we can get the most out of the limb.
The performance of the LBX limb is very good, but what we wanted to do (and succeeded in doing) was to significantly increase the vertical stability of the ACS longbow limb. Both the LB and the LBX are more vertically stable in this new version.
(http://i603.photobucket.com/albums/tt113/JCHavard/DSC_2611_zps038cc56a.jpg) (http://s603.photobucket.com/user/JCHavard/media/DSC_2611_zps038cc56a.jpg.html)
(http://i603.photobucket.com/albums/tt113/JCHavard/DSC_2612_zps5a6b6ace.jpg) (http://s603.photobucket.com/user/JCHavard/media/DSC_2612_zps5a6b6ace.jpg.html)
(http://i603.photobucket.com/albums/tt113/JCHavard/DSC_2606_zps2b340faa.jpg) (http://s603.photobucket.com/user/JCHavard/media/DSC_2606_zps2b340faa.jpg.html)
(http://i603.photobucket.com/albums/tt113/JCHavard/DSC_2618_zps1f82ced0.jpg) (http://s603.photobucket.com/user/JCHavard/media/DSC_2618_zps1f82ced0.jpg.html)
(http://i603.photobucket.com/albums/tt113/JCHavard/DSC_2617_zpsbcb8c83e.jpg) (http://s603.photobucket.com/user/JCHavard/media/DSC_2617_zpsbcb8c83e.jpg.html)
(http://i603.photobucket.com/albums/tt113/JCHavard/DSC_2630_zps80ccbe81.jpg) (http://s603.photobucket.com/user/JCHavard/media/DSC_2630_zps80ccbe81.jpg.html)
(http://i603.photobucket.com/albums/tt113/JCHavard/DSC_2626_zps67362226.jpg) (http://s603.photobucket.com/user/JCHavard/media/DSC_2626_zps67362226.jpg.html)
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Not good...not good...not good!!!
The dim light at the end of the tunnel of resistance was an illusion. Once again, the bite is a big one for the fish is me.
Am not even going to subject myself to makng a futile attempt to resist.... can't even wait for John's revelation since havinge been on the fence for some time now regarding a desired longbow limb. I have fallen in the green pastures of Dryad Land once more.
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Awesome!!!
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Sounds like you guys have really done your homework.. Congrats !
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Placed my order today.
Have been gut hooked.
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Yep, me too. Order is in. Brian
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Gotta post some speeds....
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pamike,
I tested the LBX (and the comparison top-end ILF limbs) on a 17" Dryad Epic ILF riser. All tests were done at the mid-point of the ILF limb bolt range, with even tiller, at 28" AMO, with a 9 grains per pound arrow, using the same string (all limbs tested were longs), with all shots being taken out of my Hooter Shooter shooting machine. The LBX limbs shot 198.1 fps with a BH of 7 1/8" (which is about the mid-point of BH recommended range for those limbs on this riser). I tested the 3 best-performing ILF limbs I own at 7" BH. One of the recurve limbs is the latest and greatest 2015 model, another is last year's top-end model from another highly respected company, and of course I tested our Dryad ACS-RC limbs too. At 7" BH the three ILF recurve limbs ranged from 199.6 fps to 197.3 fps (ceteris paribus).
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Whats the wait time on these?
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This time of year around 6-8 weeks.
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John...Do you expect the Orion bolt-on LBX limbs to generate approximately a 4 fps increase over the ILF LBX limbs?
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Scott I knew you couldn't resist.
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Scott, yes, that's about right.
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Hey John, what was the draw weight on the bows you tested?
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Kirk, they were in the range of 45#
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We are looking at early April on these orders for build dates. Scott yours will be ready towards the end of April. LOL
Mike
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winglessnut....soooon enuff!
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Mike, will you be bring a lefty to High Country Shoot?
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We should have a full compliment of bows with us at the High Country Shoot this year.
Mike
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Originally posted by John Havard:
Kirk, they were in the range of 45#
Those are pretty decent numbers from a 45# bow @ 28" draw John. Congrats brutha. :clapper:
I've always got my best numbers from 51-53# or higher draw weights.
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Kirk, thanks for the kind words.
9 grains per pound has always tested the same for me in draw weight ranges from 35# to 70#. I've never seen any difference in AMO arrow speeds as long as the grains per pound were precisely the same.
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You guys ever let guys take a test drive? would love to fondle a riser before I took the plunge into the abyss.
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Any comments on the noise level with this new limb? I have had the 4G and have the CG model and can get them hunting quiet easily.
Recommended brace with your ILF and the trad tech pictured riser is the same tested? If so the increased vertical stability at lower brace is most welcome.
Any DFC available?
Recommended limb length on a 17" DAS 29" draw?
Thanks.
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Katman,
Yep John set the limbs up in the middle of the recommended brace on each riser.
For the 17" DAS and 29" I'd go with XL limbs.
Mike
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Thanks Mike, need to save for these.
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Congratulations guys. You are doing a great job.
God bless, Steve
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Congratulations guys. You are doing a great job.
God bless, Steve
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Originally posted by John Havard:
Kirk, thanks for the kind words.
9 grains per pound has always tested the same for me in draw weight ranges from 35# to 70#. I've never seen any difference in AMO arrow speeds as long as the grains per pound were precisely the same.
Really? That's incredible John. I've always had problems getting the same speeds at lower draw weights even keeping a close eye on core to glass ratio.... The lower preload on the lighter weight limbs was my prime suspect...
Good on you bro... :thumbsup:
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Originally posted by wingnut:
This long limb mounted on a 15" riser endured 215,000 cycles drawn to 30". That's 3" beyond the recommended max draw on that 60" setup.
Mike
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Mike
We're these 215,000 dry fires, actual shots, draw-let down?...and...did the limb fail at 215,000 or is that just where you stopped the test?
Thanks
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They are draw cycles. Draw to 30" and let down. The limbs were still perfect after the test and I sent them to John for his use this year.
Mike
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What lengths are the bows, and risers shown in the 1st, & 5th picture?
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The first one is a 17" riser and the long limbs for a 62", the 5th is a 21" with longs for a 66" and the last one is a 19" with longs for a 64".
Mike
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How do these differ from the A&H ACS at the same weight and length?
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cloudbaseracer - pm sent.
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What limb length for 17" DAS and 26" draw.
Thanks Sam
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I was wondering what limb length for a 28 1/4" draw using either a 15" or 13" riser?
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Sam,
Your shortest limb would be a Medium on the 17" riser.
Dan,
For your draw you would need and XL on the 15" and XXL on the 13". I wouldn't really recommend the 13" riser combo unless you have your heart set on that short of a riser.
MIke
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Thanks Mike, so a 15" riser with xl limbs is what? 62" bow?
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Yep it makes a 62" bow.
Mike
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John
Can you please explain what you mean by vertical stability? I am sure a lot of us that don't build bows but just love shooting them would be interested to know the technical aspects and what it translates to on the limbs.
Cheers,
James
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The easiest way to describe vertical stability would be to grab the strung bow string and pull up and down on it. If it moves easily (thereby deforming the limbs) then the bow isn't vertically stable. If you pull up and down on the string and the limbs are very difficult to move then the bow is vertically stable.
Vertical stability is a good thing for string walkers or folks like me who have a predictably imperfect release.