Author Topic: Holy DFC Batman...  (Read 7217 times)

Online Longcruise

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Re: Holy DFC Batman...
« Reply #80 on: May 26, 2021, 12:10:09 AM »
10 GPP for both bows.  1,000 gr for the 100# bow 500 gr for the 50#.  We know that draw weight increases exponentially with limb thickness so it doesn't make sense that heavier draw weight is slower than lighter because of the weight of the limbs.

That's the answer to the riddle of why I hold that opinion.

Then there's hysteresis.  Maybe that would explain why I'm wrong?
"Every man is the creature of the age in which he lives;  very few are able to raise themselves above the ideas of the time"     Voltaire

Shredd

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Re: Holy DFC Batman...
« Reply #81 on: May 26, 2021, 11:08:05 AM »
 Geeeez.....   
    If you noticed, I said, "I have 'Heard' your fastest fiberglass bows are around 50 to 60#"... I will never say something is a fact unless I know first hand through personal experience...   Now I don't know who to believe...  I do know for a fact that bows under 35 and 40# start losing performance of the same design...  But I believe that the performance can be increased by changing the design...  Lighter weight bows are a different animal...

   It's tough dealing with this stuff sometimes...  I have been mislead numerous times by a seasoned bowyer...  Even me, myself could be wrong... I could have made a mistake somewhere down the line and misread the results that I was working on...  And I believe some people have not even experimented and make chit up in their heads that they believe is true... So be aware people...  Not everything you hear is true just because someone has made bows for a good bit of time...

   I thank you guys for bringing this to light...

Online Roy from Pa

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Re: Holy DFC Batman...
« Reply #82 on: May 26, 2021, 11:13:09 AM »
Honestly Rich, I think you are too hard on yourself.....

 :wavey:

Shredd

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Re: Holy DFC Batman...
« Reply #83 on: May 26, 2021, 11:20:24 AM »
  You are not the first to say that...    :laughing: 

Maybe a little too passionate and go over board...

Online Roy from Pa

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Re: Holy DFC Batman...
« Reply #84 on: May 26, 2021, 01:46:31 PM »
Well keep trying and one of these days you might make a bow that shoots good..

Now don't go getten a wedge in yer undies, just messen wif ya...

 :laughing: :wavey:

Offline avcase

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Re: Holy DFC Batman...
« Reply #85 on: May 26, 2021, 06:55:15 PM »
So, you are saying the statement is false... It is what I have heard and I believe most of the bows in the WTT contest were in the 50 to 55 lb. range... Why wouldn't someone make a 70 to 80lb. bow and blow the doors off the competition??

  And you are also saying that 100# bow is definitely faster than a 50# bow with 5gpp arrows with both bows being of the same design??

Hello Rich,
I don’t know what the rules were for the “Walk the Talk”.  My guess is that heavy bows would have represented a very small percentage of the market for the bow builders that participated. 

There is no easy rule that will help estimate the impact on performance between a 50# and 100# version of a similar design.  For typical glass backed designs, the trend should favor the heavier bow.

Alan

Shredd

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Re: Holy DFC Batman...
« Reply #86 on: May 27, 2021, 12:20:11 PM »
   I know...  Appreciate you, Roy...   :)


   Allen...  I never thought about rules...  They may have stated 60# max in the rules...  I just heard numerous times that anything over 60# the limbs start getting heavy or possibly even start stacking too soon which could take away from performance...  Which kinda sounded legit to me...  None of this involves me anyway right now...  I build bows 30 to 50#...

Offline avcase

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Re: Holy DFC Batman...
« Reply #87 on: May 27, 2021, 03:05:24 PM »
I have seen a few instances where a bowyer built a one-off heavy draw weight bow that did not perform well.  I believe that this is because they are building something that falls outside their normal comfort zone, and they haven’t gone through nearly the same kind of development and lessons learned from building the usual 35-50 pound bows.

We find ways to become proficient at meeting whatever requirements we choose to focus on. For me, I am solely focused on building bows that provide maximum performance and durability only for flight archery. Everything else takes a back seat.  So I do a majority of my testing shooting 5ggp or less arrows, and I tend to focus on heavier draw weights. These requirements drive my bow designs and build techniques and I eventually find ways to meet the challenge.  But if I suddenly decided to shift my focus and build a 35 pound bow that was optimized for shooting heavy 15 ggp arrows at a long 32” draw length, then I would really struggle to come up with anything better than an average performing bow.

However, if we look at it purely from a technical design point of view, a heavier draw weight glass-composite design should outperform a lower draw weight design with identical ggp arrows and draw length.

Alan

Offline williwaw

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Re: Holy DFC Batman...
« Reply #88 on: May 28, 2021, 04:43:12 PM »
However, if we look at it purely from a technical design point of view, a heavier draw weight glass-composite design should outperform a lower draw weight design with identical ggp arrows and draw length.

Alan

also from further up,
Quote
A glass bow will generally show higher efficiency at higher ratio of draw weight to draw length.

Alan, would you explain why this is true?
thanks

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