an arrow is an arrow right?

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An Arrow is an Arrow right?

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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 - PowerPoint PPT Presentation

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An Arrow is an Arrows right?

An Arrow is an Arrow right?

As we explore youll discover that selecting an arrow is a real balancing act.

Talking PointsArrow propertiesArrow materialsStraightnessArrow spineArchers ParadoxArrow weightFOC front of center

Arrow diameterFletching materialsFletching sizeFletching spinNocksPointsPoint weight

Arrow MaterialsProperties of an arrowWidth - diameterLength WeightStiffness spineStraightness Aerodynamics- air resistance and rotation

Arrow MaterialsWhat are common arrow materials?

Arrow MaterialsCommon arrow materials:CarbonAluminumCarbon aluminum compositeWoodFiberglassBamboo

Arrow MaterialsWhat are the benefits and detriments of each of the materials?

Arrow MaterialsCarbon:

Arrow MaterialsCarbon:

Carbon is strong light weight and incredibly straight and spine consistent. It may become broken or weakened without the archer noticingArrow MaterialsAluminum:

Arrow MaterialsAluminum:Inexpensive Straight and consistent.It may become bent during usage without the archer noticing. Its a heavier material.

Arrow MaterialsCarbon 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 X10sCan still become bent or cracked. Heavier than plain carbon.

Arrow MaterialsWood:Light, inexpensive, traditional, elegant?Tends to warp, high likely hood of breakage, Spine fluctuations

Arrow MaterialsFiberglass:Extremely inexpensive, Overly durable?Tends not to be straight, Heavy, inconsistent spine.

Arrow MaterialsStraightness:With carbon arrows manufactures are publishing straightnessExample .003 or .005 the smaller the number the straighter the arrowIf it is a carbon arrow with out a published straightness be wary they may be sub par.

Arrow Fit and Flight

Whats an Arrows Spine?Arrow Fit and Flight

SpineThe spine is the measurement of how much an arrow flexes under weightThe 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.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.

Arrow Fit and Flight

SpineAll 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 lengthArrow LengthDraw weightRelease type (release or fingers)Type of bow i.e. recurve, longbow, compoundType of Cams (compounds)Arrow Fit and Flight

Archers ParadoxArchers paradox is the flexing of the arrow as it leaves the bow. Finger shooters experience more archers paradox then do mechanical release shooters.

Arrow Fit and Flight

Arrow WeightLighter arrows fly flatter. The flatter the trajectory the less critical it is to judge distancesHeavier arrows absorb bow energy more efficiently and so tend to have greater momentum and better penetration

Arrow Fit and Flight

Arrow Fit and Flight

FOC Front of CenterWhat is FOC and why is it important?

Arrow Fit and Flight

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

Arrow Fit and Flight

Shaft DiameterWhy are there so many different shaft sizes?

Arrow Fit and Flight

Shaft DiameterThicker shafts are more likely to cut the line on a target and can achieve stiffer spines and recover fasterThinner shafts have better penetration and are less affected by windLike everything else shaft size becomes a balancing act to achieve your personal goals.

FletchingsWhat is the purpose of fletching?

FletchingsFletching:Provides arrow stabilityImparts spin to the shaft

Fletching MaterialsWhat are common fletching materials?

Fletching MaterialsCommon Fletching:Vanes, made of plasticFeathers (turkey feathers)Spin vanes made of Mylar

Fletching MaterialsVanes, made of plastic, Water resistant, durable, inexpensiveFeathers (turkey feathers) highly forgiving, add drag and fail in wet conditionsMylar, provide tremendous spin and are ultra light weight, Theyre less durable, used with Olympic equipment.

Fletching MaterialsDoes Size Matter?

Fletching Materials

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

Fletching Materials

Does it matter how the fletching is applied?Left, right, straight

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 dont believe it matters.

Nocks

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

Nocks

Your Nock should Snap loosely on the stringA nock that snaps onto the string too tightly will cause a significant loss of speedWhile a nock that is to loose will tend to fall off at the worst possible time.

Points

Points PracticeBig GameSmall gameFishing

Points

Points Points are primarily made out of steel for strengthTypical arrow technology uses screw in pointsSome points are designed to be glued inPoint weight should be purchased to match field points, broadheads, small game.

Arrow Fit and Flight

Picking Your ArrowsThe 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