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efficiency
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  1. TradTalk Main Forum
    Is there a unified theory? If not, are there any strong more specific theories?
  2. TradTalk Main Forum
    Whats your take, where would you say the bow works most efficient: The curves "valley" just reaches the linear line, or the point where it starts to rise from that line having often followed it a couple of inches?Sorry for the lack of better illustration or a pic. r.mika
  3. TradTalk Main Forum
    I know many of you here are well aware of much of the following but I put so much thought into typing this windy response out elsewhere?...I figured I'd bore you all as well by shamelessly re-posting and sharing it here! LOL! As who knows?...there may be some little thing that someone here...
  4. TradTalk Main Forum
    Is there a correlation between riser length and limb efficiency. So would a 19" riser with med limbs be any more or less efficient than a 17" riser with meds. What if you dropped to a short limbs.
  5. TradTalk Main Forum
    My wife is shooting a 25" SF Forged Plus with long 45 pound Black Max Extreme limbs for a 70" bow. With the long riser and long limbs the bow pulls 34 pounds on a bow scale at 25". She loves the weight and stability of the long riser, but she doesn't believe that she is getting the best...
  6. TradTalk Main Forum
    This is a follow-on to my recent post: Expanded test procedure using a shooting machine: Border XP10 Evolution http://tradtalk.com/forums/showthread.php?t=50972 In this post I am looking at more closely at efficiency changes with draw length, and adding variations in arrow weight expressed in...
  7. TradTalk Main Forum
    Just recently ordered a 21" Hoyt Excel Riser and medium TT Blackmax Carbon/wood limbs (64" bow) and waiting for it to arrive. In the mean time I figured I'd read up on ILF limbs and risers. I just have one question that I can't seem to find a clear answer for. I have a 28" draw, and if I set...
  8. TradTalk Main Forum
    There are 2 ways to make any bow faster, store more energy or deliver more of the energy you already have to the arrow with a higher efficiency. Efficiency is expressed as a percentage of the energy imparted to the arrow vs the stored energy (KE). While efficiency can be important when the...
  9. TradTalk Main Forum
    So I see these guys shooting very fluid touch and go release, they tend to shoot quite heavy setups. with what appears to be fast arrows. Accuracy apart what potentially gives a faster arrow, a hold with a controlled release or this snap style? (if its consistent touch point) is it the release...
  10. TradTalk Main Forum
    Just some ideas that I've been chewing on for a while. Seems that that a longer bow is not just more forgiving, but also more efficient for shooters with longer draw lengths. And vice versa for shorter draws. Thus, choosing the bow length based on one's draw length would have some advantages...
  11. TradTalk Main Forum
    Let us assume: -- Same riser and same arrow. -- Draw length is 28 inches. -- Limb set #1 yields AMO bow length of 56 inches with 50# @ 28 inches. -- Limb set #2 yields AMO bow length of 60 inches with 50# @ 28 inches. -- Limbs have same efficiency of energy storage, however this is...
  12. TradTalk Main Forum
    What is the best way to measure the efficiency of a bow/riser/limb combination. I don't have an answer but I have been making the following calculation. After the information is gathered to calculate the KE of a bow/arrow combination I have been dividing KE/Bow draw weight. I normally get...
  13. TradTalk Main Forum
    How does a bows/limbs efficiency affect arrow spine selection? If a bow is considered very efficient at transfering energy to the arrow does that mean a stiffer spine is required? For example: you have two bows at equal draw weight but one is more efficient than the other, the charts will show...
  14. TradTalk Main Forum
    How far before the fadeouts do I need to be with a strap on type bow quiver so that I dont affect the working part of the limbs? I love my thunderhorn linx quivers, but it seems that most bowyers recommend the quiver to be placed atleast two to three inches before the fade outs, I can't get my...
  15. TradTalk Main Forum
    I am curious as to how bowyers decide where to get the most efficiency out of a bow? With the FITA limbs it is either in the material and or design and riser length. But with a custom built bow most of the bowyers have thoughts of their own. Not to be critcal but that may be why the R/D...
  16. TradTalk Main Forum
    A friend and I were talking about limbs and draw lenght. The question I have is, If a bow that was rated at (example) 50#@30 inches and the archer only has a 28 inch draw and only pulling 44#'s be as efficient as a bow that was rated 44#'[email protected]28 inches? Given that both bows are only drawn to 28...
  17. TradTalk Main Forum
    I got a chance to shoot a customers FITA bow today. First time I've shot one. 38# or 40# Vector long limbs and the long Aerotec riser. Super smooth and stable. Overall, really sweet setup. My question is this. I shot the bow through the chronie and ir really performed pretty average. At about...
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