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Author Topic: Cap Dip VS. Wrap weight  (Read 354 times)

Offline Matt_Potter

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Cap Dip VS. Wrap weight
« on: February 11, 2010, 09:00:00 AM »
I am sure one of the fiddlers in the group has figured this out. ( -tis the season)

What how much mass weight does a 7 inch wrap add to and arrow vs a cap dip.

thanks

Matt

Offline Doc Nock

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Re: Cap Dip VS. Wrap weight
« Reply #1 on: February 11, 2010, 09:06:00 AM »
I forget!!!  :)  But that is common at my age.

What I can tell you is that I did EFOC measurements carefully on a cap dipped arrow with 5" shield cut feathers.

Then I Checked a 10" wrap w/ 3" feathers...and the FOC DROPPED! Yup. The wrap added enough weight to the back that it LOWERED my foc even though I ADDED 20 gr. up front!!

That amazed me.  Checked it 3x and then asked Dr. Ed Ashby and he confirmed a slight add in rear weight really detracts from EFOC. Fwiw.
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Offline Dale in Pa

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Re: Cap Dip VS. Wrap weight
« Reply #2 on: February 11, 2010, 09:13:00 AM »
Used to dip in laquer,first white then another color,then clear and found it would add about 30 grains for a 9" dip.

Wraps are around 10 grains each.

Offline SveinD

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Re: Cap Dip VS. Wrap weight
« Reply #3 on: February 11, 2010, 09:14:00 AM »
I love bow-nerds  :)

Can't wait till I start having use for this!
But I've only shot for 11 months, so it'll take some time..
Centaur 58" Glass XTL 40@28

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Offline NDTerminator

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Re: Cap Dip VS. Wrap weight
« Reply #4 on: February 11, 2010, 10:02:00 AM »
Depends on who makes the wrap.

The 7" long x 1" or 1-1/8" wide ones I get from Onestringer  weigh 11-12 grains.  I've gotten some over the counter ones that were surprisingly heavier.

Can't say how much dipping adds but I would bet it's quite a bit more.
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Online Orion

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Re: Cap Dip VS. Wrap weight
« Reply #5 on: February 11, 2010, 10:07:00 AM »
Two dips of 9-inch cap (Bohning lacquer) added about 10-12 grains to my 11/32 shafts.  Difference in weight between a dip and vinyl is pretty much a wash.  Not enough to worry about.  Though it's effect on FOC is real, it is negligible, less than 1/2%. Yep, I measured all these things.

Offline JimB

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Re: Cap Dip VS. Wrap weight
« Reply #6 on: February 11, 2010, 10:15:00 AM »
I believe my 1"X8" wraps are 12 grs.

Offline Matt_Potter

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Re: Cap Dip VS. Wrap weight
« Reply #7 on: February 11, 2010, 09:12:00 PM »
thanks guys I knew some had the answer

Matt

Offline Onestringer

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Re: Cap Dip VS. Wrap weight
« Reply #8 on: February 11, 2010, 11:28:00 PM »
Wraps weigh in at about a grain a square inch.

Scott
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