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Put together scientifically and from sections of wood specially tested, a remarkable strength may be obtained by such a method of building. The figure shows how a girder aircraft body, supported by trestles only at its ends, may support from its centre, without yielding, a tray containing a number of heavy weights

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Posted on

Friday 19 November 2021

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900*417

Tags

Century:20th , Construction, Flight

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• Technology / Transport / Air

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