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N1 Outdoors

N1 Outdoors is an outdoors company and outdoor apparel brand providing hunting and fishing tips via our blog and instructional videos. N1 shares bow hunting, fishing and other helpful information for those who hunt and fish and enjoy the outdoors. "Hunting, Fishing, The Outdoors... All N1"
FOC calculator header image

FOC Calculator | Easily find Front-Of-Center of your hunting arrows

If you already know the length and balancing point of your arrow, you can use the FOC Calculator below to quickly find the % of your arrow’s weight that is Front-Of-Center! (enter a number or slide the orange dots to the desired number)

FOC (Front Of Center) | Calculator
Arrow length from end of arrow shaft to the bottom of the nock groove (L)
inches
Distance from balance point to the bottom of the nock groove (A)
inches
FOC (Front Of Center):

0 %

You may have heard other bowhunters talk about the “FOC” of their hunting arrows. (Who knows, you may have even heard “The Ranch Fairy” ranting about high FOC).

But, what does “FOC” mean and how can you easily calculate it?

What does FOC stand for?

“FOC” stands for Front-Of-Center (Or Forward-Of-Center) and refers to the percentage of an arrow’s overall weight that is forward of the balancing point, or, “center” of the arrow.



How to calculate FOC using a formula

You might like the FOC calculator but also want to learn how to calculate FOC using a formula.

The formula to calculate an arrow’s FOC is:

100 x (Balance Point measurement [A] – Arrow Length [L]) / 2.

To use this formula, you will first need to measure the arrow’s overall length as well as finding the balance point measurement.

foc equation graphic
Once you have found the arrow length (A) and balance point (B) measurements, use the formula above to find the FOC of your hunting arrow.

Finding the arrow’s length

To find your arrow’s length for the purposes of calculating FOC, you need to be sure you measure correctly.

Measure your arrow from the end of the arrow (where the broadhead/point screws in) to the bottom of the throat of the nock (see diagram above).

Once you have your arrow length measurement, you need to measure the balancing point…

How to find the “balance point” of an arrow

To find the balance point of your hunting arrow, first be sure you have already installed your nocks, vanes, inserts and broadheads/points onto your arrow.

balance point FOC diagram
To calculate FOC, you first need to find the “balance point” of your hunting arrow.


Using a triangular block of wood, find the exact place that your arrow balances perfectly. (If you don’t have a triangular block, you can also balance the arrow on your finger).

Once you have found the balance point of your arrow, measure from that point to the throat of your nock. This will be your balance point measurement.




tuffhead broadheads
Consider heavier broadheads when seeking a higher FOC.

Conclusion

Once you have measured your arrow’s length and balancing point, you can use the formula provided in the diagram above to calculate the FOC of your arrow.

Certainly bowhunters want to be the best they can be so that they can get an ethical kill. But, when it comes to FOC, there are varying opinions on whether higher or lower FOC is better.

Some bowhunters want an arrow with a lower FOC so that the arrow is as fast as possible. The intent is often to keep the deer or game from “ducking the string.”

Others want an arrow that has a higher FOC %, (you may have seen The Ranch Fairy discuss this) so that the arrow hits the animal with a heavier impact. This tends to increase the odds of a “pass-through” shot.

This can be helpful to increase the chances of a mortal wound in the event you encounter bone or other stiff tissue that might impede the arrows progress.

Hopefully you find our FOC calculator helpful and we hope you have an arrow that’s Just Pass’N Through!

Put A Hook N1 | A Gallery of Bass Pictures

One of our main taglines for our fishing shirts is “Put A Hook N1!” Here’s a look at some folks who have done just that while bass fishing (and wearing our gear!)



Check out some of our fishing apparel below!




Send us your fishing pics!

Have you got a fishing picture you’d like to share with us? You can contact us or you can message us on any of our social media platforms (Facebook, Instagram and Twitter)! Just search for @N1outdoors.

We hope you Put A Hook N1!

diy lighted nocks

How to make your own lighted nocks for bowhunting

Ever wanted to make your own lighted nocks instead of spending a small fortune on the ones in the store or online? Well, I am going to show you step-by-step how to make your own lighted nocks for bowhunting.

Advantages of lighted nocks

Bowhunters understand that arrows and broadheads can be expensive. On top of that, you never want to lose the animal you just shot.

Now, if you lose your broadhead, your arrow, and your quarry, this can cause full-blown bowhunter’s depression.

That’s where lighted nocks come in.

diy lighted nock finished product

When you get finished, you’ll have something that looks like a regular arrow nock, but when the string impacts it, it will light up. Then, with a little pull back on the nock, you will be able to turn it off… all for about $2.50 cents each!

They can help you not only find your arrow in low light conditions, but in the event that you don’t get a pass-through shot, you will be able to get a better visual on where your deer or other game runs after impact.

For those of you who film your hunts, lighted nocks can also help you see the point of impact and other shot details upon video playback.



What you’ll need to get started making your own lighted nocks

There a few basic things you’ll need to get started making your own homemade lighted nocks:

  • Bobber lights (search for “bobber lights” on Amazon)
  • Arrow nocks (NAP and Carbon Express Launchpad precision nocks both sell nocks with a diameter large enough to house most bobber lights. They also tend to have a longer shaft, which gives you more room to house the bobber light).
  • Super glue
  • Sand paper (100-grit works great)
  • PVC pipe cutters or box cutter blade

Time needed: 2 hours.

Step-by-step instructions to make your own lighted nocks:

  1. Remove (cut off) the back of an existing nock

    So the first thing we want to do is remove the back of an existing nock with the pvc pipe cutters. Be sure to cut evenly cut all the way around so there’s not a burr on it (if you get a burr, you can use the sandpaper to smooth it out).

    cutting lighted arrow nock with pvc cutters

  2. Be sure the end of the cut nock fits into the arrow shaft

    Once you have cut the end off of this nock, be sure it fits in shaft snugly. If you have a burr from cutting it, use the sandpaper to smooth it out.

    You want this part to be a tight fit in the arrow shaft, because whenever you get this inserted, you don’t want it to move back and forth when you’re pulling on the back of the full nock.

    making sure bottom of nock fits snugly in arrow

  3. Super glue the bobber light bottom into the back of the cut nock

    Put some super glue on the bottom end of the bobber light battery. Slowly insert the bottom of the bobber light into the cut nock.

    gluing end of bobber light into arrow nock

  4. Seal the bottom of bottom end of nock

    Put a small bead of super glue on the open end of the cut nock to seal it. You can then set that bottom onto a paper plate to let it dry (2 hours).

    sealing end of homemade lighted nock

  5. Super glue lighted end of bobber light into the full arrow nock

    Carefully put a bead of super glue aright around the top of the lighted part of the bobber light.

    Be careful not to get glue in between the lighted portion and the battery part of the bobber light. (This would glue the two parts together and prevent the light from coming on when the string impacts the nock). 

    When finished, let that part dry 2 hours.

    super gluing bobber light to insert into arrow nock

  6. Be sure a regular nock will twist easily inside arrow shaft

    BEFORE inserting the finished lighted nocks into the shaft, take one of your nocks that does not have a bobber light in it yet and be sure that when you insert it into your arrow, that you can still twist/move it back and forth fairly easily.

    If it’s too stiff to move/twist, then take your sandpaper and lightly sand around the long part that goes into the arrow shaft (NOT the cut end) until it moves well enough for you to be able twist it fairly easily with your fingers.

    sanding the bottom of lighted nock

  7. Align nock with arrow fletchings

    If you use a rest that requires your fletchings to be pointed a certain direction, be sure you insert the nock in such a way that you will achieve the proper alignment of your arrow with your rest.

    aligning diy lighted nock with arrow shaft

  8. Insert finished nock into arrow shaft

    Once both ends of the lighted nock have dried, and you’ve also sanded the light nocks well enough for the string end of your nocks to move/twist easily, insert the lighted nock into your arrow shaft.

    inserting homemade lighted nock into arrow shaft

  9. Test and shoot

    Once you have inserted the nock into the shaft, test it by pressing on it to turn the light on, and then untwist the nock until it turns off. Then you’re ready to shoot!

    (NOTE: you may need to do some fine tuning of your site, as the added weight at the end of the arrow may slightly impact your current bow site settings.

    pressing end of homemade lighted nock





DIY lighted arrow nocks: Conclusion

We hope that you have fun (and saving some money) making your own lighted arrow nocks. They will help you have a better visual on your arrow and/or wild game on your next bowhunting adventure.

If you’d like to watch a video of this DIY lighted nock process, check this out.

If you are hunting whitetail deer, mule deer, elk or any other game animal, be sure to keep honing your bowhunting skills and we hope you put a hole N1!

(P.S., if you liked this DIY project, check out my DIY deer mineral recipe how to article as well as my DIY euro mount instructions!)

diy lighted nocks shining while in target
The lighted nocks worked great and they fly great too! You can watch the instructional video on how to make your own lighted nocks here.

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