- Tailerra
- sin.forging
- es forja
- eu forjaketa
- fr forgeage; forge
- Tailerra
- es forjar
- eu forjatu
- fr forger
- Tailerra
- es herrería
- eu sutegi
- fr forge
forge
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- ^ Michael C. Y. Niu (1988). Airframe Structural Design. Conmilit Press LTD. pp. 376.
- ^ Boat builder site
- ^ ... such as the ARV Super2
- ^ Boat building with strip planking
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SARRERA DESBERDINA:
Former
A former is an object, such as a template, gauge or cutting die, which is used to form something such as a boat's hull. Typically, a former gives shape to a structure that may have complex curvature.
A former may become an integral part of the finished structure, as in an aircraft fuselage, or it may be removable, being used in the construction process and then discarded or re-used.
Formers are used in the construction of aircraft fuselage, of which a typical fuselage has a series from the nose cone to the empennage, typically perpendicular to the longitudinal axis of the aircraft. The primary purpose of formers is to establish the shape of the fuselage and reduce the column length of stringers to prevent instability.[1] Formers are typically attached to longerons, which support the skin of the aircraft.
The "former-and-longeron" technique (also called stations and stringers) was adopted from boat construction,[2] and was typical of light aircraft built until the advent of structural skins, such as fiberglass and other composite materials. Many of today's light aircraft, and homebuilt aircraft[3] in particular, are still designed in this way.
A former may instead be a temporary shape over which a structure is built, the former subsequently being discarded in whole or part, as follows: