Author Topic: TEST BOWS (pics p5) DATA P6 (NEW TEST P11 ) (Read 8173 times)

kennym · « **Reply #80 on:** August 15, 2009, 01:30:00 PM »

Thanks guys!!

Dano,
I really don't sell em,got 2 going to charity benefits,2 more to a buddy and a bro-in -law.....

Shawn,probably a couple weeks,gettin ready to glue up the walnut # 2,I think thats all I'm gonna do for now!

LC · « **Reply #81 on:** August 15, 2009, 11:15:00 PM »

Man those are beautiful.

SteveD · « **Reply #82 on:** August 16, 2009, 06:38:00 AM »

Looks great. Very nice

kennym · « **Reply #83 on:** August 16, 2009, 08:00:00 PM »

Got the 2nd walnut bow almost done this weekend.Will sand it and shoot finish on it nites this week!

It came in 3# lite,I suspected this on the first one that I accidentally cut too short,it finished at 53# @ 28" on a 62"bow,shoulda been 56# on a 62",been gaining 6# for 2" pike.

Guess I'll just shoot a lighter arrow off it... Probably try to use 9gpp arrows on all of em.

Gonna try to set up to run them thru the shootin machine Fri AM, one of em needs to go to a benefit for Children's Mercy in Kansas City Fri PM at Lake of the Ozarks

Shore08 · « **Reply #84 on:** August 16, 2009, 08:05:00 PM »

Those are gorgeous man!

Really great of you to put them up for charity too.

razorsharptokill · « **Reply #85 on:** August 18, 2009, 05:48:00 PM »

Like Marines in formation!

Mounter · « **Reply #86 on:** August 19, 2009, 12:05:00 AM »

Sweet line up!

SoNevada Archer · « **Reply #87 on:** August 19, 2009, 04:58:00 AM »

Beautiful!

PV · « **Reply #88 on:** August 19, 2009, 01:58:00 PM »

Fine work Kenny! Looking forward to the final results. Thanks for posting your progress

kennym · « **Reply #89 on:** August 21, 2009, 07:37:00 PM »

OK, here goes!

Shot with mechanical release on Hooter Shooter

These bows were made as close as possible to each other with

64" length
.355 total stack
.003" per inch total taper
4 wood lams
2 pcs black glass
18" riser
10 strand D97 endless string
brass nockset

Here is the data,I used the same arrow for all bows(sorry,limited time with hootershooterbefore sending one bow to charity auction!)

The arrow weighed 437 grains

All bows chronoed at 28" draw length

Actionboo bow
48 #
181.1 fps

Maple bow
49#
182.1 fps

Red elm bow
49.8#
183.0 fps

Walnut bow
46.5#
181.1 fps [TYPO !!! Shoulda been 180.8!!]

--------------------------------------------------

Now for some fun info...

62" walnut bow same specs just 2" shorter
51.6#
187.8 fps

My hunting bow with string puffs 62" bow
52.9# @28"
186.5 fps
w/o string puffs same bow
192.1

29" draw-56.8# (7.69 gpp) w/o puffs
200.8 fps

30" draw -59.4# (7.36gpp) w/o puffs
209.5 fps

---------------------------------------------
Draw force All are 64" except noted,all gain even 2.5 out to 32 except 62" at bottom

A-boo
48@28
57.7@32

Maple
49@28
58.5@32

Red elm
49.8@28
59.1@32

Walnut
46.5@28
56.3@32

62" walnut
51.6@28
53.9@29
57@30
59.6@31
63.2@32

Gaining avg of around 2.5#per inch except the 62" bow is gaining faster after 29"

This data was collected to the best of our ability,YER MILEAGE MAY VARY :cool:

Dano · « **Reply #90 on:** August 21, 2009, 08:05:00 PM »

Love that Elm!! I gotta get me a a 32" draw.

BenBow · « **Reply #91 on:** August 21, 2009, 11:10:00 PM »

Looking good Kenny, bows and performance.

Dmaxshawn · « **Reply #92 on:** August 21, 2009, 11:11:00 PM »

Thanks for the good info there Kenny and I know that I appreciate taking the time out of your schedule for all of us to see the results. Interesting results.

Shawn.

kennym · « **Reply #93 on:** August 22, 2009, 08:46:00 AM »

Dano,I can draw 32",but I'm gonna lose an ear or a nip,so I refuse!

The mechanical release makes even my bows sound faster! LOL

I enjoyed the whole deal,especially the hootershooter,wish I had one of those! They are a little spendy for me tho!

Trux Turning · « **Reply #94 on:** August 22, 2009, 07:24:00 PM »

Kenny- great info-thanks- I'll put that elm I got to use soon and probably in the 62" range instead of the 64"- your bow design is better than you let on- a very nice bow to build and shoot.

kennym · « **Reply #95 on:** August 23, 2009, 05:11:00 PM »

Thanks Dave!

Heres Jeff,he helped us test,his equipment there!

My huntin bow,man its yella!!

razorsharptokill · « **Reply #96 on:** August 23, 2009, 06:36:00 PM »

Quote

Originally posted by Trux Turning:
Kenny- great info-thanks- I'll put that elm I got to use soon and probably in the 62" range instead of the 64"- your bow design is better than you let on- a very nice bow to build and shoot.

Yes, it is! I love mine! Going to build another one soon.

kennym · « **Reply #97 on:** November 16, 2009, 10:02:00 PM »

Just noticed a screwup and went back to original paper notes!! The 181.1 on the walnut 64" bow was the fast shot,avg was 180.8

Sorry about that!!

steve wasson · « **Reply #98 on:** November 17, 2009, 12:06:00 AM »

Nice work Kenny!! Wow!

Looper · « **Reply #99 on:** November 17, 2009, 02:31:00 AM »

This is a great experiment. I was looking at the numbers and it looks like the walnut is the most efficient core material in this test on a per poundage basis.

Dividing the fps by the poundage:

actionboo: 3.77 feet per second per pound
maple: 3.72
red elm: 3.67
walnut: 3.88

Of course you know that you can't stop with just this test. How about the same thickness and tapered stack using only 2 lams? Do the additional glue lines in a 4 lam stack affect the cast?

And how much faster would the bows shoot the same gpp at 32" as at 28"? Shooting the same arrow at different draw lengths is changing 3 different parameters (spine, gpp, fps).

Very cool test. Thanks for sharing your knowledge with us.

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Author Topic: TEST BOWS (pics p5) DATA P6 (NEW TEST P11 ) (Read 8173 times)

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