21 Replies to “Advanced arrow fletching for archery-Compound and recurve info for performance with Jake Kaminski”

  1. the student trying to be the professor
    no advanced nothing here……….not even good beginner information

  2. Jake, you present many insightful observations in this video. I like your methodical way of doing things.
    I believe I can explain your "natural spin" problem and the answer is actually exciting but difficult to fully understand.
    It is a natural phenomena and is not caused by you or your equipment. It happens because the Earth spins!
    It's called the Coriolis Force / Coriolis Effect.

    Your arrows will rotate counter clockwice when shooting on the northern hemisphere and your arrows will rotate clockwice on the southern hemisphere! On equator there is zero effect and the closer you get to the poles the stronger the effect.

    It is weak forces we are dealing with here, and I am surpriced that you noticed and measured the effect. It is obviously because you are an exellent archer!

    Conclusion: It make perfekt sense to follow the coriolis spin and fletch the arrows to rotate counter clockwice when shooting on the northern hemisphere to minimize drag.

    I have not yet got a real physisist to confirm what i postulate here but will do that in a near future.

  3. Hey. Thank you so much for your explanations, maybe we will meet once. I will start competing in Portugal. Maybe one day international competitions. Just one question if you ever have time to answer. What did you have for arrow spine (not dynamic), arrow lenght (end of shaft to nocking point) and point weight. I watched the bow tunning video so I can guess the bow weight but I didn't hear the rest on either video. Thanks!!

  4. Jake…….I reckon that you're wrong. Here's my explanation:

    In theory, arrows shot out of a string from a bow (recurve or compound) do not have a set "natural spin". That is because the string is generally taut during the power stroke due to the forces acting along the axes of the string on both sides of the nock. You could attribute your perceived bias spin of the shafts to some non-random oscillation of the rotation resulting in the rotation being captured on the nock leaving the string but that is highly questionable without the high speed video footage.

    Your biased perception of the rotation could be a result of seeing a pattern where there is none. Demonstrably, you casually dismissed the results that did not agree with your theory, attributing them to bad release. This is no way to conduct an experiment. If you suspect that the experiment was botched, you do it all over again. That's how results are confirmed.

    Factors to consider are how arrows that enter the target foam initially without rotating are made to rotate AFTER impacting the foam. Surface irregularities within the foam can result in such phenomena. Even if they do not, other random factors may cause the shafts to rotate, but as I have said, these are random. Their directions are random as well.

    And IF you are right that arrows have natural rotations, then are their set directions contained within the same models, or models of the same length, or just that same matched dozen? If so, then wouldn't it change as a result of fletching, but you wouldn't be able to tell because you have already decided their spin direction?

    However, in all fairness, in the event that you are right, at least about the bare shafts……I offer a viable test that you can do without the fancy $200,000 high speed camera. Well, at least in theory.

    Procure some luminous strips of three distinct colors. Stick them at equal angular offsets in the same interval for all twelve arrows. Shoot them all from the same 10m distance, in only UV light, and capture those shots with a digital still picture camera with a large aperture and long exposure setting at high ISO setting.

    Please let me know if you're willing to take up the challenge and prove me wrong. Thanks.

    Sincerely, 
    theminoritydude

  5. Hi Jake, can I ask you a question, I'm new to archery and I'm just making some arrows up for short range shooting, having spun the arrows and cut an ever so slight bend off the front end, would you make the straight end, the point, or the fletched end of the arrow, I feel that if the arrow head wobbles slightly it might not be as accurate as having the fletching end wobble , what can you advise. thanks.

  6. What AAE vanes would you recommend for a 50 lbs compound bow? I'm interested to fletch my arrows the same way in this video but with proper aae compound fletches based on your recommendation

  7. I appreciate all you do Jake. As someone that has no recurve background, your videos have been invaluable on setting up my first set up. Thank you very much for taking the time to explain how you do things.

  8. I know these 1hr+ videos take a lot of time & work but we really, really appreciate them! It's great to pop one of these on while I work and just listen along, then rewatch it later when I have more time. I hope you keep going with these when you have time. I know that this whole series has drastically helped my own archery.

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