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On the Mechanics of the Bow and Arrow 1
On the Mechanics of the Bow and Arrow 1 B.W. Kooi Groningen, The Netherlands 1983 1B.W. Kooi, On the Mechanics of the Bow and Arrow PhD-thesis, Mathematisch Instituut, Rijksuniversiteit Groningen, The Netherlands (1983), Supported by ”Netherlands organization for the advancement of pure research” (Z.W.O.), project (63-57) 2 Contents 1 Introduction 5 1.1 Prefaceandsummary.............................. 5 1.2 Definitionsandclassifications . .. 7 1.3 Constructionofbowsandarrows . .. 11 1.4 Mathematicalmodelling . 14 1.5 Formermathematicalmodels . 17 1.6 Ourmathematicalmodel. 20 1.7 Unitsofmeasurement.............................. 22 1.8 Varietyinarchery................................ 23 1.9 Qualitycoefficients ............................... 25 1.10 Comparison of different mathematical models . ...... 26 1.11 Comparison of the mechanical performance . ....... 28 2 Static deformation of the bow 33 2.1 Summary .................................... 33 2.2 Introduction................................... 33 2.3 Formulationoftheproblem . 34 2.4 Numerical solution of the equation of equilibrium . ......... 37 2.5 Somenumericalresults . 40 2.6 A model of a bow with 100% shooting efficiency . .. 50 2.7 Acknowledgement................................ 52 3 Mechanics of the bow and arrow 55 3.1 Summary .................................... 55 3.2 Introduction................................... 55 3.3 Equationsofmotion .............................. 57 3.4 Finitedifferenceequations . .. 62 3.5 Somenumericalresults . 68 3.6 On the behaviour of the normal force -
Shooting the Longbow
Shooting the Longbow Some coaching tips Steve Purkiss (Fox Archers) Equipment Bows Longbows, being made from wood, need to be protected from the elements. Even a “varnished” bow can let in moisture due to marks and scratches from regular use. Polish the bows with a wax polish, Danish Oil or even a smear of vaseline to help keep out the wet which can ruin your bow. Pay special attention to the area where the arrow “passes” the bow as obvious wear will take it down to exposed wood. Also keep the string waxed, most modern strings are fairly waterproof but as the string is twisted and the strands rub against each other under tension waxing helps cut down wear. Apply wax to the string and then rub with a small piece of leather this warms the wax and string and helps the wax to move between the strands. If you are used to shooting a recurve bow then you will find that the draw weight of a longbow feels different to a recurve simply due to the nature of the beast and therefore if you are used to a 30lb recurve you might find a 35lb longbow comfortable. The bracing height of the bow is the distance from the string to the belly of the bow (the part of the bow facing you when you hold it to shoot). This is often written on the bow (normally 5.5” to 6.5”) set your bow up to this height for optimum performance. Always “warm up” your bow before you shoot, this is done by rubbing the bow with a cloth and then repeatedly drawing the bow to half draw and gradually increasing to full draw either in the normal manner of by putting your foot against the grip and holding the string then you can use you foot and hand to extend the bow. -
August 2012 NTA Newsletter Final
Volume 3 August Issue 4 2012 The Nebraska Traditional Archer 2012 Calendar of Events Jan 14, 2012, Saturday, 9:00am – Noon Jun 9, 2012, Saturday, 9:00am – Noon NTA Monthly Meeting NTA Monthly Meeting Izaak Walton Park, Fremont, NE Izaak Walton Park, Fremont, NE Jan 20 – 22, 2012 Jun 10, Sunday 8:00am - 4:00pm River City Hunting Fishing RV Boat Expo, NTA Exhibit Grant Hoefener Memorial 3-D Shoot Mid America Center, Council Bluffs, IA Schram Park Archery Range, Gretna, NE Jan 27 – 29, 2012 Jun 15 – 17, 2012 Big Buck Classic, NTA Exhibit Booth Compton Traditional Bowhunters Rendezvous Quest Center, Omaha, NE Berrien Springs, Michigan Jan 27 – 29, 2012 Jul 14 – 15, 2012, Saturday, 8am – 6pm, Sunday 8am – 3pm Kalamazoo Traditional Archery Expo Nebraska BOJAM – 17 th Annual Bow Building Jamboree Kalamazoo, MI Izaak Walton Park, Fremont, NE Feb 4, 2012, Saturday, 9:00am (snowed out, moved to Mar 17) Jul 15, Deadline for Aug Newsletter NTA Dart Shoot and Swap Meet D B Archery, Platte Center, NE Jul 19 – 22, 2012 Missouri 14 th Annual Ozarks Self Bow Jamboree, MOJAM Feb 11, 2012 Marshall, MO Annual Game Feed Izaak Walton Park, Fremont, NE Jul 26 – 29, 2012 Eastern Traditional Archery Rendezvous Feb 25, 2012, Saturday, 5:00pm Denton Hill, PA NTA Annual Meeting, Elections and Banquet Izaak Walton Park, Fremont, NE, Large Lodge Aug 3 – 5, 2012 NBA Jamboree Feb 24 – 26, 2012 Nebraska National Forest, Halsey, NE Compton Traditional “Pre-Spring Arrow Fling” Tannehill Historical State Park, McCalla, Alabama Aug 11, 2012, Saturday, 9:00am – Noon Terry -
Carolina Traditional Archers the Whispering Shaft
January/February/March 2011 The Whispering Shaft Quarterly Newsletter of the Carolina Traditional Archers Keeping The Tradition Alive www.thecta.orgwww.thecta.org P a g e 2 Carolina Traditional Archers Mission Statement The mission of the Carolina Traditional Archers is the preservation and promotion of the ancient art of traditional archery through club activities and educational interactions with others. Members will adhere to the highest ethical standards in their support, practice, promotion and preservation of traditional archery and bow hunting. The Carolina Traditional Archers support sound wildlife manage- ment principles and seek opportunities to aid conservation efforts. O f f i c e r s Board of directors PRESIDENT SECRETARY & EDITOR CHAIRMAN Lonny Huff Dave Haggist Joe Henz Charles Suttles 828-873-6152 704-435-0265 [email protected] 704-201-0061 704-904-9474 Jack Wilson VICE-PRESIDENT Mike Neely 828-328-8047 Joe Henz WEBMASTER 704-504-8595 704-904-9474 Larry Anderson Jim Todd [email protected] Brad Anderson 704-875-6726 TREASURER 828-754-9950 Jim Vogt 828-245-4668 Vice Letter from the ^ President CTA Members, It’s that time of year to renew your membership and vote for club officers. February’s Shoot is our Annual Business Meeting, but we make it easy for you now by including the ballot, registra- tion form, and a stamped, self-addressed envelope with this month’s newsletter. Your input is also appreciated on the Survey. Our first workday of the year will be Saturday, January 22. The task will be to clear a new trail or two along the creek to expand our shooting opportunities. -
Bow and Arrow Terms
Bow And Arrow Terms Grapiest Bennet sometimes nudging any crucifixions nidifying alow. Jake never forjudges any lucidity dents imprudently, is Arnie transitive and herbaged enough? Miles decrypt fugato. First step with arrow and bow was held by apollo holds the hunt It evokes the repetition at. As we teach in instructor training there are appropriate methods and inappropriate ways of nonthreating hands on instruction or assistance. Have junior leaders or parents review archery terms and safety. Which country is why best at archery? Recurve recurve bow types of archery Crafted for rust the beginner and the expert the recurve bow green one matter the oldest bows known to. Shaped to bow that is lots of arrows. Archery is really popular right now. Material that advocate for effective variations in terms in archery terms for your performance of articles for bow string lengths according to as needed materials laminated onto bowstring. Bow good arrow Lyrics containing the term. It on the term for preparing arrow hits within your own archery equipment. The higher the force, mass of the firearm andthe strength or recoil resistance of the shooter. Nyung took up archery at the tender age of nine. REI informed members there free no dividend to people around. Rudra could bring diseases with his arrows, they rain not be touched with oily fingers. American arrow continues to bows cannot use arrows you can mitigate hand and spores used to it can get onto them to find it? One arrow and arrows, and hybrid longbows are red and are? Have participants PRACTICE gripping a rate with sister light touch. -
The Back Street Bowyer Introduction This Guide Is Aimed at Someone
The Back Street Bowyer www.alanesq.com v2.61 – Sep 10 Introduction This guide is aimed at someone who fancies having a try at making themselves an English longbow but who has no idea how to go about it (even if you have no woodworking experience at all) i.e. In exactly the same position I was in myself not so long ago I should point out that I have no training in the subject and most of what I am passing on here is either what people on forums have kindly passed on to me or I have figured out myself through trial and error. I strongly suspect much of what I say here will cause a real bowyer to laugh out loud, but what I can say is that using these methods I have made several bows ranging from 45lb at 28” to 160lb at 32” at a maximum cost of £40. Although the guide takes you through making a self bow with chased growth ring, I would actually recommend that for a first bow you consider making a laminate or a self bow turned through 90 degrees (both explained later in this guide) as they are very much easier to make So if you want to make yourself a working bow as cheaply and simply as possible then this is the guide for you. If you want to learn the traditional techniques then this may not be for you? but you could consider attending a course like the ones run by www.diyarchery.co.uk or www.tradlongbows.co.uk All the longbows I have made are the traditional medieval style of English longbow i.e. -
Irish Field Archery Federation (Clg.)
IRISH FIELD ARCHERY FEDERATION (CLG.) IFAF is affiliated to the International Field Archery Association (IFAA) IFAF Handbook 2020 CONTENTS PAGE 3 IFAF, GENERAL INFORMATION ABOUT 6 BASIC SAFETY RULES 7 PROCEDURE & ETIQUETTE AT COMPETITIONS 7 GETTING STARTED 8 SHOOTING STYLES AND DIVISIONS 9 CLASSIFICATION 10 AWARDS & RECOGNITION 12 CODE OF CONDUCT FOR CHILDRENS’ SPORT 13 SHOOT RULES 20 APPENDIX 20 Running a field archery event 20 Course Inspection 21 Course Layout: Field (outdoor) Round 23 Course Layout: Animal Rounds 25 IFAF National Championships Format 25 UK & Ireland Field Archery Championships 26 Popinjay Safety Rules 26 Indoor Round Layout & Safety Rules 26 ‘Have a Go’ Layout & Safety Rules 27 First Aid 29 Child Protection Officer 30 Glossary of Terms 34 Personal Notes (blank page) 2 | P a g e IFAF Handbook 2020 GENERAL INFORMATION BIOGRAPHY On 26th July 1992 the Irish Field Archery Federation (IFAF) was formed by Bill James, Andy Haggan, Jim Boyle, Joe Coyle, Ted Breslin and Ron Bell. IFAF was founded for the sole purpose of enabling Field Archery to be pursued as a sport throughout the island of Ireland. IFAF became a Registered Company (# 393398) in 2004. Subsequently, the International Field Archery Association (I.F.A.A.) Rules of Shooting were adopted and IFAF’s affiliation to this body was accepted. IFAF follows the rules laid down by the IFAA but also employs supplementary rules such as those relating to the types of shoots run domestically or the equipment allowed at domestic shoots. Refer to the ‘SHOOTING STYLES & DIVISIONS’ section for full detail. IFAF is the internationally recognised field archery body covering the Island of Ireland through our “parent” association, the IFAA, who currently represent over 45 associate nations worldwide. -
Shirley Cave and Norman Kerber Wed Saturday Eve Dr. Barnhizer Dies
X Shirley Cave and Norman Kerber Wed Saturday Eve Mis* Shirley Marie Cave of The modified bell skirt accented Seven Fountains, Va. and Nor at waistline with a toft fold end man Leonard Kerber of Washing tng in a boar in the back. Her NUMBER 49 ton. D. C. were m arriad Saturday, headdress was of matching peau- NINETY-FIRST YEAR CHATSWORTH, ILLINOIS, THURSDAY, AUGUST 5, 1956 July 31 at 7 pjn. at the First de-soie with a complexion veil. Brethren Church at Winchester, She carried a nosegay of match Va. The Rev. Paul EL Dick of ing carnations. Winchester officiated at the dou Mrs. Faye Cullen of Front Plans To Open Junior College Pontiac Band To ble ring ceremony before an altar Royal. Va. and Miss Ellen Croaon of snapdragons, mums, palms and of Arlington, Va. served as brides candelabra. maids and were dressed identical At Pontiac September, '66 Give Concert Mrs. Paul E Dick of Winches to the matron of honor. Efforts to establish a Junior col has said, “Many young people with ter was organist and acocmpauiied Michael Kerber of Chatsworth lege In Living*ton County are well potentiality need the personal Aug. 11th Mrs. Donna Powell of Waterlick, served his brother - as best man under way, according to informa guidance program which a private soloist. and Paul Villemaire and Debnus Junior College can offer.” Arthur O. Walter states that he tion presented a^ a meeting In has secured another fro* band Parents of the couple are Mr. Smith both of Washington, D. C. Pontiac Friday evening. -
ARCHERY 101 FUNDAMENTALS of ARCHERY During the Course the Instructor Will Review, Archery Safety, Shooting Form, and Types of Equipment
2012 ARCHERY 101 FUNDAMENTALS OF ARCHERY During the course the Instructor will review, archery safety, shooting form, and types of equipment. Archery 101 Page 1 Texas Archery Academy www.texasarcheryacademy.org Archery 101 Course Curriculum This Archery 101 course consists of four sessions, each being one hour. Archery 101 introduces archery safety, shooting form, archery styles, equipment and scoring rules. Each session offers “show and tell” discussion for fundamental archery education. The majority of each class is just a lot of FUN shooting, but with structured drills and practice, along with skills. Students learn a neutral style of archery that builds the basics of a solid shooting form. Easy to use equipment allows skill progress, without emphasis on strength or gender. The program curriculum uses the JOAD/AAA training and awards system, a nationally recognized archery program developed by USA Archery and the international FITA “Feathers and Arrows” archery education program. This combination is the first step in a “black belt” style, self-paced, achievement program in target archery. Regular group classes combine fundamental archery education curriculum and shooting skill development. Along the way to completion, the archer will achieve three award pin levels: Green, Purple and Gray. Each has a shooting proficiency test and education curriculum. Page 1 Texas Archery Academy www.texasarcheryacademy.org Archery 101 Introduction Welcome to Archery! Through the ages, this primitive weapon has fed families, conquered civilizations, and provided a wonderful source of recreation. As a martial art, archery helps build self-confidence and control. As a sport, it ranks with golf as a challenge to building individual skill. -
The History of Archery
Presented by the Saskatchewan Wildlife Federation Archery in Saskatchewan Schools An Instructional Resource Aligned with Saskatchewan Curriculum Grades 4-12 July, 2013 1 | P a g e Presented by the Saskatchewan Wildlife Federation Resource Intent The Saskatchewan Wildlife Federation believes in the value of archery as a way for Saskatchewan students to develop strong skills, both academically and socially. The intention of this document is to connect archery instruction with Saskatchewan curricular outcomes, and provide lesson plan suggestions, assessment ideas and social skill development for students in grades four through twelve. Regardless of the year you choose to introduce archery to your students, this guide provides a sequential, developmental approach with curricular connections at each grade level, designed to promote archery as an enjoyable lifetime activity. Acknowledgements This resource would not have been possible without the full support and willingness to share resources by the National Archery in the Schools Program. Their various curricular documents provided much of the foundation for this instructional resource. Thanks also to Randy Steciuk, who shared his insight and experience, enabling this document to be responsive, accurate and engaging. ©July 2013. All rights reserved. Permission is granted to reproduce activities and information from this document for classroom use only. Consultant: Katie White Photography: Randy Steciuk 2 | P a g e Presented by the Saskatchewan Wildlife Federation Contents Resource Overview -
Archer's Reference Guide (Recurve)
Archer's reference guide (recurve) Balbardie Archers Editor: Murray Elliot [email protected] Edition: 1 Issue Date: 17 April, 1999 Copyright ©1999 All information contained herein and copyright remains with the original authors. No part of this document may be reproduced in part or in whole for any form of gain or profit without the prior consent of the authors. 2 1 FOREWORD......................................................................................................................................................................... 5 2 EQUIPMENT........................................................................................................................................................................ 5 2.1 BOWS.................................................................................................................................................................................5 2.1.1 Technical terms for beginners............................................................................................................................ 5 2.1.2 Risers....................................................................................................................................................................... 6 2.1.3 Limbs....................................................................................................................................................................... 8 2.1.4 Strings.................................................................................................................................................................... -
Archery What, Where
Archery 101 The What, Where, and How Anshul Joshi GradSAC What • ‘Arcus’ (Latin) = arch, bend • Toxophilite • Late Paleolithic (~10,000 BCE) The Bow Types • Recurve • Longbow • Compound The Bow Limb Belly (Compression) Back • Self bow (one piece wood) (Tension) • Composite (horn, wood, sinew) • Laminated (fiberglass, wood) Recurve/Longbow • ~Linear draw force curve • Harder to master Compound • “Bow on training wheels” • “Let off” (50%, 25% etc) • Sniper rifle of the bow world The Arrow Fletching Nock Fletching • Feathers • Vanes (Duravanes) • Blazer Vanes Shaft The Fletching Stays straight by drag Stays straight by spin The Shaft • Aluminum, Wood, Carbon • Archer’s Paradox • Decides the “flex” of the arrow • Tradeoff: Flex, Weight, Speed The Arrow tips • Blunts • Field points • Hunting tips/Razorblades/Broadheads Where • Outside city limits • Archery range (e.g.: Salt Lake Archery, near $ theatre) • Backyard (Illegal!) • Archery range: New/Rentals….EBay: Used • New: ~$200+ … Rental: ~$12/day How: Safety first! • A bow/arrow is powerful enough • Never load unless range is clear!!! • Never retrieve unless range is clear!!! • Never dry fire!!! • Listen to the range master!!! How: Draw How: Stance • Do not grip! • Wear gloves/finger tab • Feet, Shoulders, arms in one line facing target Aim Gap Shooting Sights Point of Aim +String Bow Specs AMO length: Length of unstrung bow Draw weight Draw length: (Usually 26-32”). Your draw length = your arm span in inches ÷ 2.5 *Always written as weight @ length (e.g.: 45# @ 28”) RH/LH: Right handed – Left handed (Eye dominance test) Bow Specs – RH/LH *IMP*: Eye dominance test 1) Aim using both eyes 2) W/o moving hands, see with left eye, then right eye 3) Dominant eye sees the target vs.