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A self bow or simple bow is a bow made from a single piece of wood. Extra material such as horn nocks on the ends, or built-up handles, would normally be accepted as part of a self bow. Some modern authorities would also accept a bow spliced together in the handle from two pieces of wood. [1]
This shape, viewing the limbs, is designed to take into account the construction materials, the performance required, and the intended use of the bow. There are many different kinds of bow shapes. However, most fall into three main categories: straight, recurve and compound. Straight and recurve are considered traditional bows.
One of the simpler longbow designs is known as the self bow, by definition made from a single piece of wood. Traditional English longbows are self bows made from yew wood. The bowstave is cut from the radius of the tree so that sapwood (on the outside of the tree) becomes the back and forms about one third of the total thickness; the remaining ...
The bows are generally between 170 and 180 cm in length and less than 6 cm wide. [2] [3] It has been suggested that only the inner limbs of a Holmegaard style bow bend in use, [4] [5] but this is incorrect, they bend to their tips. [6] All Mesolithic bows from this area are made of elm, the best European bow wood apart from yew.
The flatbow is a superior bow design for almost all materials because the stress is more evenly spread out than with rounded limb sections. A bow limb is essentially a flexed beam undergoing bending, and in any flexed beam the farther from the neutral axis (line in the middle of the flexing beam which is not under tension or compression: see diagram in Bending article) the more stress there is ...
The bow stave is shaped to have a D cross-section. The outer "back" of sapwood, approximately flat, follows the natural growth rings; modern bowyers often thin the sapwood, while in the Mary Rose bows the back of the bow was the natural surface of the wood, only the