Dryad ILF ACS Recurve Limbs: First Results

[Blacky]

Today I received a set of the brand new Dryad ACS ILF Recurve limbs, that will debut at the Kzoo show.

I did some testing today and here's the first results:

  Dryad Legend ACS ILF Recurve Limbs on 15" Epic Riser  

Draw Weight @ 28":   42,6   lbs
      
Stored Energy:   41,20   ft-lbs
      
Ratio SE/PDF:   0,97   
      
Arrow Weight:   384   grains
      
Arrow Speed:   198   fps
      
Kinetic Energy:   33,44   ft-lbs
      
Efficiency:   81,1%   

   

[wtpops]

Wow those limbs dont even start to climb even at 32"

Were the limbs bottomed out, that curve does not even get back to level until 30"

[Friend]

Remarkable performance!

My guess is that you may have tested merely one set-up that was faster.

Either way, this is elite performance.

[Blacky]

The limb bolts were set in the medium position.

I just talked to John and he told me that the bolt-on version is faster than the ILF version. We'll see after the Kzoo show, when I'll receive mine.

Blacky

[wtpops]

You may want to try turning them in and see what you get, i know you will get more speed due to increase in pounds at draw but(i in no way know what i am talking about and rely on what i read)i have read that you get the most out of a ILF limb if your draw length is at just before the curve starts to rise. You may get a jump in efficiency, not that there is any thing wrong with 81%

[Blacky]

Rick,

I normally test all my ILF bows with the limb bolts in the medium position.      


Blacky

[wtpops]

I understand, got to have a set system when testing, just my curiosity poking at me.

[Friend]

I would expect the new Orion Design riser to be a little faster due to having significantly less deflex, thus a longer power stroke.

Click on the 'X'

 

[ermont]

WOW that arrow is moving for less than 43#!

[Bjorn]

That is quite an accomplishment-1st ACS RC limbs to boot! Smoking hot!      

[JParanee]

Great performance for the weight and the middle adjustment

Yow great stats. Thanks Blacky

[Pat B.]

Pretty swift !

[foudarme]

what is your brace height?

[ShadeMt]

Blacky,

Have you tested their ACS 4G longbow limbs?

[FerretWYO]

Those are pretty good numbers.

[Over&Under]

Ya some great performance numbers....Well done guys!

[[email protected]]

OK, I need an education on how to read/interpret the graph.  And what’s considered good, fair and bad.  Math and engineering have never been my strong point.
It seems to me that the limbs do not “stack” from 28” to 32” inches which I think is a very good thing.  The poundage simply increases in a straight line.  Simple enough?
At a 20” draw length the “straight” line draw is just a bit less than 24 lbs while the bow actually draws a bit over 31 lbs.  Is that correct?  Is that considered beneficial or good?
Is the fact (?) that you have a heavier draw in the lower poundage (than in a straight line) is that somehow good?  Is that the price you pay to have no stack at the upper end?
Is the straight line a utopia that bowyers strive for?
Ok…thinking out of the box…
Is it possible to “reverse” the red line?  If you hold the red line at each end and rotate it so it’s under the straight line…instead of pulling more than the straight line it actually pulls less until you reach the 28” draw length.  If that is possible would that be considered good?
Seems the speed is very fast for a + - nine grains per lb.  Is there a way to extrapolate what it would be at 10 grains per lb?

Like I said, I am not the sharpest tool in the shed when it comes to this stuff so I will appreciate your accurate feedback.
Thanks,
Bob

[xtrema312]

I shot them at the Kzoo expo tonight.  Very fast!!  The shot distance is short, but you can still tell the bow is quick and hitting very hard.  This year they have Rinehart targets and the arrows were hard to get back out of the target.  I shot about 20 tope end bows about the same weight and the new ACS recurve was the hardest hitting.  Not quiet with bare string.  I would like to shoot one again with silencers to see how it quiets  down.  

I also shot their standard static tip limbs and loved those.  Longbow quiet with nothing on the string.

[xia_emperor]

Blacky
are the bolt-on versions is faster than the ILF version? just wanted to see if you had the chance to compare yet. thanks!!!