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Arrow FOC

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Travis299 View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: February/05/2020
Location: Cary, NC
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Points: 25
Post Options Post Options   Thanks (0) Thanks(0)   Quote Travis299 Quote  Post ReplyReply Direct Link To This Post Topic: Arrow FOC
    Posted: February/06/2020 at 15:26

FOC method that I use for my 20” BEEs (Note - FOC = Front of Center)

1. Total arrow length minus the BH/FP on my BEEs = 20.5” (nock to insert)

2. Balance point with BH/FP installed on my BEEs = 14.125” (nock to balance point)

3. Arrow mid point is 10.25” (1/2 length)

4. Difference between mid point and balance point = 3.875” (14.125” – 10.25”)

5. FOC is difference, 3.875” divided by total length minus the BH/FP 20.5” = .189024.

6. Convert to % by multiply .189024 x 100 = 18.9% FOC

Semper Fi
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