"The traditional construction of a longbow consists of drying the yew wood for 1 to 2 years, then slowly working the wood into shape, with the entire process taking up to 4 years. (This can be done far more quickly by working the wood down when wet, as a thinner piece of wood will dry much faster.) The bow stave is shaped into a D-section, from a half cross section of a tree or branch. The inner side of the bow stave consists of rounded heartwood and the outer of sapwood with a flat back. The heartwood resists compression and the outer sapwood performs better in tension. This combination forms a natural 'laminate', similar in effect to the construction of a composite bow. Longbows will last a long time if protected with a water-resistant coating, traditionally of "wax, resin and fine tallow"."Originally Posted by Carl
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