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An Arrow is an Arrow right?

An Arrow is an Arrow right?. As we explore you’ll discover that selecting an arrow is a real balancing act. Talking Points. Arrow properties Arrow materials Straightness Arrow spine Archers Paradox Arrow weight FOC front of center. Arrow diameter Fletching materials Fletching size

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An Arrow is an Arrow right?

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  1. An Arrow is an Arrow right?

  2. As we explore you’ll discover that selecting an arrow is a real balancing act.

  3. Talking Points • Arrow properties • Arrow materials • Straightness • Arrow spine • Archers Paradox • Arrow weight • FOC front of center • Arrow diameter • Fletching materials • Fletching size • Fletching spin • Nocks • Points • Point weight

  4. Arrow Materials Properties of an arrow • Width - diameter • Length • Weight • Stiffness – spine • Straightness • Aerodynamics- air resistance and rotation

  5. Arrow Materials What are common arrow materials?

  6. Arrow Materials Common arrow materials: • Carbon • Aluminum • Carbon aluminum composite • Wood • Fiberglass • Bamboo

  7. Arrow Materials What are the benefits and detriments of each of the materials?

  8. Arrow Materials Carbon:

  9. Arrow Materials Carbon: • Carbon is strong light weight and incredibly straight and spine consistent. • It may become broken or weakened without the archer noticing

  10. Arrow Materials Aluminum:

  11. Arrow Materials Aluminum: • Inexpensive Straight and consistent. • It may become bent during usage without the archer noticing. It’s a heavier material.

  12. Arrow Materials Carbon Aluminum Composite: • Jury is out on the benefits but the initial idea was to allow more consistent wraps and shaft shaping?A potential benefit is to manufacture barrel shaped arrows Easton X10’s • Can still become bent or cracked. Heavier than plain carbon.

  13. Arrow Materials Wood: • Light, inexpensive, traditional, elegant? • Tends to warp, high likely hood of breakage, Spine fluctuations…

  14. Arrow Materials Fiberglass: • Extremely inexpensive, Overly durable? • Tends not to be straight, Heavy, inconsistent spine.

  15. Arrow Materials Straightness: • With carbon arrows manufactures are publishing straightness • Example .003 or .005 the smaller the number the straighter the arrow • If it is a carbon arrow with out a published straightness be wary they may be sub par.

  16. Arrow Fit and Flight What’s an Arrows Spine?

  17. Arrow Fit and Flight Spine was established in modern times by Easton who uses a 29" arrow. You place this arrow on two posts measured out 28" apart. You then place a 1.94 pound weight in the middle of the shaft and measure how far the arrow shaft drops down. This gives you a static (non-moving) spine. Spine • The spine is the measurement of how much an arrow flexes under weight • The spine of the arrow needs to be matched to the archers setup, Arrow length, Point Weight, Arrow Wraps all have and affect on the spine of the arrow.

  18. Arrow Fit and Flight Spine All reputable arrow manufactures have a spine chart or spine calculator. They collect data specific to your setup and provide you with applicable choices Data needed to identify the correctly spined arrow for your bow are: • Draw length • Arrow Length • Draw weight • Release type (release or fingers) • Type of bow i.e. recurve, longbow, compound • Type of Cams (compounds)

  19. Arrow Fit and Flight Archers Paradox Archers paradox is the flexing of the arrow as it leaves the bow. Finger shooters experience more archers paradox then do mechanical release shooters.

  20. Arrow Fit and Flight Arrow Weight • Lighter arrows fly flatter. The flatter the trajectory the less critical it is to judge distances • Heavier arrows absorb bow energy more efficiently and so tend to have greater momentum and better penetration

  21. Arrow Fit and Flight

  22. Arrow Fit and Flight FOC Front of Center • What is FOC and why is it important?

  23. Arrow Fit and Flight FOC Front of Center • FOC is where the arrow balances in comparison to the true center of the arrow • A general rule is that FOC should be some where between 10 and 15% • FOC is calculated by FOC = (Balance/Length -.5) x 100 • An arrow with a heavier tip tends to be more aerodynamic flying truer and more stable

  24. Arrow Fit and Flight Shaft Diameter • Why are there so many different shaft sizes?

  25. Arrow Fit and Flight Shaft Diameter • Thicker shafts are more likely to cut the line on a target and can achieve stiffer spines and recover faster • Thinner shafts have better penetration and are less affected by wind • Like everything else shaft size becomes a balancing act to achieve your personal goals.

  26. Fletchings What is the purpose of fletching?

  27. Fletchings Fletching: • Provides arrow stability • Imparts spin to the shaft

  28. Fletching Materials What are common fletching materials?

  29. Fletching Materials Common Fletching: • Vanes, made of plastic • Feathers (turkey feathers) • Spin vanes made of Mylar

  30. Fletching Materials • Vanes, made of plastic, Water resistant, durable, inexpensive • Feathers (turkey feathers) highly forgiving, add drag and fail in wet conditions • Mylar, provide tremendous spin and are ultra light weight, They’re less durable, used with Olympic equipment.

  31. Fletching Materials Does Size Matter?

  32. Fletching Materials Surprise, the answers Yes! • The height of a vane is the critical dimension • Taller Fletching have more leverage allowing it to stabilize the arrow quicker. • Longer fletching's stabilize but are less efficient and typically heavier

  33. Fletching Materials Does it matter how the fletching is applied? • Left, right, straight…

  34. Fletching Materials OK well sort of! • The way that the fletching's are glued on determines the direction and amount of spin. • More spin stabilizer the arrow faster and typically makes them more accurate but you sacrifice speed for spin. • Right hand shooters have traditionally used right hand helical, conversely lefties use left. With a release I don’t believe it matters.

  35. Nocks Nocks come in all sizes • Nocks are manufactured for each specific shaft. Make sure the nocks you buy fit your shafts properly • Most modern nocks press fit into the shaft some glue on, while others fit over the shaft

  36. Nocks Your Nock should Snap loosely on the string • A nock that snaps onto the string too tightly will cause a significant loss of speed • While a nock that is to loose will tend to fall off at the worst possible time.

  37. Points Points • Practice • Big Game • Small game • Fishing

  38. Points Points • Points are primarily made out of steel for strength • Typical arrow technology uses screw in points • Some points are designed to be glued in • Point weight should be purchased to match field points, broadheads, small game.

  39. Arrow Fit and Flight Picking Your Arrows The most critical part of picking an arrow is to ensure it matches your bow and will shoot safely and accurately. This requires a proper spine and length. Beyond proper fit, your personal arrow needs will vary. Your arrow selection will become a balancing act to achieve your performance goals • Weight • Speed • Wind • Distance • Scoring • Penetration • Accuracy • Price • Balance

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