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- Q653015 subject Q7037483.
- Q653015 abstract "A compound bow is a modern bow that uses a levering system, usually of cables and pulleys, to bend the limbs.The pulley/cam system grants the wielder a mechanical advantage, and so the limbs of a compound bow are much stiffer than those of a recurve bow or longbow. This rigidity makes the compound bow more energy-efficient than other bows, as less energy is dissipated in limb movement. The higher-rigidity, higher-technology construction also improves accuracy by reducing the bow's sensitivity to changes in temperature and humidity.The pulley/cam system also confers a benefit called "let-off". As the string is drawn back, the pulleys rotate. The pulleys are eccentric rather than round, and so their effective radius changes as they rotate. By the time the bow is at full draw, the change in pulley radius has approximately doubled the wielder's mechanical advantage, and so less force is needed to hold at full draw. This "let-off" gives compound bows their characteristic draw-force curve: a quick rise to peak force and then diminishing to a much lower holding force. The exact shape of the curve is a function of the pulley geometry chosen by the designer. The compound bow was first developed in 1966 by Holless Wilbur Allen in Billings, Missouri, and a US patent was granted in 1969. The compound bow has become increasingly popular. In the United States, the compound is the dominant form of bow.In literature of the early 20th century, before the invention of compound bows, composite bows were described as "compound". This usage is now outdated.".
- Q653015 thumbnail Compound_Bow_full.jpg?width=300.
- Q653015 wikiPageExternalLink compound.html.
- Q653015 wikiPageExternalLink 70.htm.
- Q653015 wikiPageExternalLink bow-diagram.
- Q653015 wikiPageWikiLink Q10729167.
- Q653015 wikiPageWikiLink Q1074665.
- Q653015 wikiPageWikiLink Q1078649.
- Q653015 wikiPageWikiLink Q108429.
- Q653015 wikiPageWikiLink Q1194225.
- Q653015 wikiPageWikiLink Q1340491.
- Q653015 wikiPageWikiLink Q155640.
- Q653015 wikiPageWikiLink Q17146658.
- Q653015 wikiPageWikiLink Q181790.
- Q653015 wikiPageWikiLink Q181947.
- Q653015 wikiPageWikiLink Q186476.
- Q653015 wikiPageWikiLink Q19827042.
- Q653015 wikiPageWikiLink Q2325464.
- Q653015 wikiPageWikiLink Q2607372.
- Q653015 wikiPageWikiLink Q2739293.
- Q653015 wikiPageWikiLink Q2915206.
- Q653015 wikiPageWikiLink Q3621800.
- Q653015 wikiPageWikiLink Q384714.
- Q653015 wikiPageWikiLink Q446.
- Q653015 wikiPageWikiLink Q46276.
- Q653015 wikiPageWikiLink Q48378.
- Q653015 wikiPageWikiLink Q4913877.
- Q653015 wikiPageWikiLink Q495933.
- Q653015 wikiPageWikiLink Q5015607.
- Q653015 wikiPageWikiLink Q5309588.
- Q653015 wikiPageWikiLink Q5457864.
- Q653015 wikiPageWikiLink Q575823.
- Q653015 wikiPageWikiLink Q635945.
- Q653015 wikiPageWikiLink Q660.
- Q653015 wikiPageWikiLink Q663.
- Q653015 wikiPageWikiLink Q7037483.
- Q653015 wikiPageWikiLink Q730251.
- Q653015 wikiPageWikiLink Q890542.
- Q653015 wikiPageWikiLink Q910977.
- Q653015 wikiPageWikiLink Q961517.
- Q653015 type Thing.
- Q653015 comment "A compound bow is a modern bow that uses a levering system, usually of cables and pulleys, to bend the limbs.The pulley/cam system grants the wielder a mechanical advantage, and so the limbs of a compound bow are much stiffer than those of a recurve bow or longbow. This rigidity makes the compound bow more energy-efficient than other bows, as less energy is dissipated in limb movement.".
- Q653015 label "Compound bow".
- Q653015 seeAlso Q45922.
- Q653015 depiction Compound_Bow_full.jpg.