From: Phil
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Date: 12-Apr-21 |
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It's the conventional wisdom, that for the majority of average size western adults, a 28 inch draw length seems to be the default length.
Whilst conducting some anthopometric data crunching for a biomechanical project I thought I'd take a look at the length of the reach of the arm. The 95 percentile distance from the Thenar Eminence to the Acromion of the Scapula is 71.216cms or for those still living in the 19th century 28.038 inches
Coincidence ... I think not
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From: JRT51
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Date: 12-Apr-21 |
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Intelligent design ? :)
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From: 4nolz@work
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Date: 12-Apr-21 |
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big words make me tingle
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From: olddogrib
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Date: 12-Apr-21 |
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Mike, You spent too many years at Bear Bay!
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From: crookedstix
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Date: 12-Apr-21 |
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I'm not convinced...seeing as how my bow arm is bent, and my anchor point is well behind that bow arm acromion. Further study, more funding, and at least one more beer is needed before I will yield the point.
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From: Rik Davis
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Date: 12-Apr-21 |
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Ya''l took this thread to the dumps real quickly. I would love to have a 28 inch draw.
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From: Rick Barbee
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Date: 12-Apr-21 |
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Other interesting info aside (thanks for that).
I much prefer the 19th century standard over the metric system. The old standard is easy to use, and more accurate. :P :)
Rick
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From: Glunt@work
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Date: 12-Apr-21 |
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If your draw is only 26" inches just embrace the metric system.
"Whats your draw length?"
"66"
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From: Gray Goose Shaft
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Date: 12-Apr-21 |
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The Thenar Eminence refers to the bulge that can be seen at the base of your thumb.
Nice, but I still like the term "heterodyning".
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From: Ron LaClair
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Date: 13-Apr-21 |
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26 - 27 is the average. A small percentage of ape arms 30- 31". I don't know when or why 28" became the suggest draw average.
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From: Trad Rick
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Date: 13-Apr-21 |
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I figured out what was said at the end. 28 inch draw.
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From: BigJim
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Date: 13-Apr-21 |
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BigJim is a Stickbow.com Sponsor - Website |
For a majority of the average sized adult males, the default "claimed" draw is 28"s.
My studies have shown that most everyone doesn't like to be called sub par, below average, short... Others have learned to live with it.
BigJim.. a guy who whishes he was taller especially when encountering someone taller :) to my point.
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From: Pdiddly
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Date: 13-Apr-21 |
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Very interesting...people tend to say their draw length is longer than it is for the reasons Big Jim pointed out. I also believe, through my observation at ranges, that the T-Rex front arms do tend to outnumber the ape arms, as Ron noted. Finally, the reason crookedstix is revved up is because his Royal Eminence, King of New Bowmaineia, does not like to share the spotlight with any other eminences, be they thenar or regal!
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From: fdp
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Date: 13-Apr-21 |
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That's interesting but if the reach is 28ish inches wouldn't that make the actual draw length per AMO standards more like 29.25"?
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From: pipcount
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Date: 13-Apr-21 |
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Have you ever noticed a yard stick is about a yard long?
Just having fun here...Thanks for the information.
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From: cobra
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Date: 13-Apr-21 |
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You had me at Anthopometric! XOXOXO
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From: Ken Taylor
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Date: 13-Apr-21 |
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I agree that most people's draw length is shorter than what they say... or even what they might think it is.
Put some hunting clothes on them and a live big game animal in front of them and it's even shorter than that, LOL!
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From: Live2Hunt
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Date: 13-Apr-21 |
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The way Tom Clum shows how to get your correct draw length with your correct form would prove most people are under drawing there bows.
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From: babysaph
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Date: 13-Apr-21 |
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But what do they draw?
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From: Altek
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Date: 15-Apr-21 |
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Funny, mine is much longer than that. Guess I'm well-endowed.
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From: Pappy 1952
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Date: 15-Apr-21 |
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Nothing scientific about what I do but through years of building and help other build self bows, I have measured many many people. Most when ask say the draw 28 or more, after checking they usually average between 25-27, most around 26.Not sure when or why 28 became the standard but the average is not 28. Pappy
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From: George D. Stout
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Date: 15-Apr-21 |
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The arrow length normally was 28", and subsequently got erroneously called a draw length standard. Like most arrows of our days back in the 60's was made up arrows already cut to either 28" or 30"...and now and again 31" for those really long draw guys...legitimate 6'4" and over people.
The original spine measure was set at 26" (wood shaft) and that was actually the average draw back in the day as well, but most guys, just like today, wanted about two extra inches of arrow to insure clearance of a broadhead when the time came to draw on game. In the excitement of a deer encounter, it's amazing how much more energy and draw potential a guy, or gal has. Don't want a shorter arrow cutting those knuckles via an adrenaline rush.
As for average draw length? In the grand scheme of life it really is irrelevant except for those like like to just dwell on such things. It is what it is for you and that's good enough for me. But then, everyone likes to think theirs is longer eh?
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From: fdp
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Date: 15-Apr-21 |
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George nailed it. Arrow length isn't draw length.
The average draw length is 26.25" which, based on standardization, would require a 28" arrow for clearance at the back of the bow.
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From: Geezer
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Date: 15-Apr-21 |
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Do you realize that your own draw length will change (lessen) when you switch from a recurve to a longbow, if that longbow is not a hybrid with a cutout for your grip, like a recurve has? That is because a true longbow riser pulls against the heel of your hand, not the web between forefinger and thumb.
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From: Jeff Durnell
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Date: 15-Apr-21 |
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Some do Geezer, but mine don't. How they pull into the hand depends on where the dynamic balance point is, and I design my longbows and adjust the strength of the limbs (tiller) so they balance at a spot slightly above the center of the grip.
The wrist is still bent like is done on longbows that do require substantial heel pressure to balance, and so the draw length will still be shorter than with a high recurve grip and straighter wrist, but there's no real pressure down near the heel of the hand on my bows. Makes for a better balanced, smoother, more lineal draw, imo.
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From: GLF
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Date: 15-Apr-21 |
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All my life I've drawn 32 inches on recurves and 31 on straight gripped longbows drawing to the corner of my mouth with a feather touching my nose. Lol, yes George I'm a true 6'4". Anyhow I always shoot a marked arrow with my others to kinda keep tabs from time to time. A few weeks ago my son was noticing I was drawing less. We Used to watch each other shoot and tell which line our draw was at at the end of the session, but hadn't for quite some time. So old age or just weakness has shortened me about half an inch at least on both style bows.
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