Monday, August 31, 2009

Advantages Of A Compound Bow

By Bart Icles

A compound bow is the modern age's most technologically advanced type of bow in existence today that utilizes a one of a kind and revolutionary leverage system. This is composed of cables and pulleys that been have designed to enable an archer to bend its very rigid limbs. The limbs of the compound bow, in general, are made from a combination of composite materials, thus the term "compound". This makes it much stiffer than those of the longbow or recurve bow (usually made from wood), allowing it to store energy more effectively. Because of this rigidity or stiffness, it is able to shoot more powerful and accurate shots, but makes the strings nearly impossible to draw without the mechanical help of the cables and pulleys.

The string is fastened or looped around the pulleys and usually has one or more cables attached to the other limb. When the archer draws the bow strings, the pulleys then turn and the cables are pulled causing the limbs to bend. The basic structure of the compound bow makes it highly resistant to direct or indirect exposure to humidity or temperature factors, thereby making it able to perform without any corruption to arrow velocity, distance covered, and accuracy when compared to other bows made out of wood.

The most common types are the single cams, binary cams, dual cams, and hybrid cams. The Hinged or Quad cams are available but are used less often since these are more complicated than the others. The cables and strings on the bow are made from high modulus polyethylene (HMPE) - a very strong and high impact material that is resistant to many harsh chemicals and abrasion. Additionally, the material doesn't absorb moisture easily, making it ideal for the outdoor use. This ultra-modern material has very minimal stretchability with a superb tensile power that provides a good base for transferring all the stored energy of the limbs and into the arrows for maximum penetrating power. Its early predecessors were only made from steel cables that were coated over with plastic.

Its origin can be traced way back many years ago during the 60's, when it was developed by bow hunter Holless Wilbur Allen. The compound bow's central riser was mainly constructed out of magnesium or aluminum, or a mixture of both. The riser is the main part of the bow where its major parts - the sights, stabilizers, quivers, and limbs, are mounted. The basic principle and design is now largely used for bow hunting, bow fishing, leisure shooting and competitive shooting.

Although the compound bow has had many technical changes to it, it still demands respect, dedication and training to become an effective archery equipment.

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