ONE of the most difficult tasks in designing a wooden aeroplane is the estimation of the strength of bolted connexions such as occur, for instance, at the wing roots of cantilever machines having folding or detachable wings. Such joints have to withstand big loads because not only is the bending moment high at the wing root, but the depth of the structure is comparatively small. It is not unusual for such wing root joints to account for 10 per cent of the tare weight of the machine; nevertheless practical considerations of ease of storage, transport and repair make their use desirable.
(1935), "Bolted Joints in Wood: The Estimation of the Strength of Bolted Connexions in Wooden Aeroplanes", Aircraft Engineering and Aerospace Technology, Vol. 7 No. 2, pp. 39-40. https://doi.org/10.1108/eb029900Download as .RIS
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