![]() The historically significant longbow is still available for purchase and is still used today in traditional target archery and hunting. During medieval warfare, thousands of archers would fill the sky with potentially lethal arrows from the furthest lethal distance. The effective range of longbows has been known to be around 200 or more yards. Modern longbows have a draw weight of around 50-60 lbs while longbows of the past reached draw weights of 150+ lbs. ![]() (1) Longbows, throughout the years have been between the lengths of 4 and 7 feet, with an average length between 6-6.5 feet. Hunter gatherers typically made this bow out of yew wood, but longbows have also been made of osage orange, hickory, oak, beech, birch, ash, elm, and bamboo. The longbow was the first bow ever invented. Draw lengths are adjustable on a compound bow by changing modules, cams, or by adjusting setting on the cams. Modern compound bows can reach speeds exceeding 365 feet per second. After peak weight is reached, the compound bow’s cam system ‘rolls over’ already having stored maximum bend or load in the limbs, the draw weight is lessened, and the archer is actually only ‘holding’ 14-20 pounds.ĭuring the shot, the cams release the stored energy and the arrow is delivered with great kinetic energy. While at this moment of the draw, the bow’s limbs are under their greatest ‘load’ or bend. When drawing a bow that requires 70 pounds of force, the archer draws back reaching peak draw weight well before full draw. Modern compound bows may have a draw weight ranging from 45-70 lbs but when at full draw, due to the mechanical design of the bow, the archer is only holding 20-25% of the draw weight at full draw. The much more energy efficient compound bow uses a system of stiff limbs, a bowstring, cables, riser and cams (pulleys) in order to store a large amount of energy into the bow’s limbs while relieving the archer from peak draw weight at full draw. First developed and patented (1) by american inventor Holless Allen in 1966, the compound bow revolutionized the sport of archery.
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