THE undercarriage considered consists of a telescopic main shock absorber to the bottom end of which is pivoted a beam carrying at its extremities wheel assemblies consisting of one, two or more wheels on a common axle. Free movement of the beam is prevented by the action of an auxiliary damper located between a point adjacent to the rear axle and a point on the beam pivot fitting. The function of the auxiliary damper is to reduce the oscillatory tendency due to unbalanced loading of the rear or front wheels and to locate the beam during flight. The damper is preferably double‐acting.
Foster, S. (1952), "Landing Loads on the Bogie Undercarriage: A method of Calculating the Distribution of Load on the Wheels of a Bogie Undercarriage when Landing", Aircraft Engineering and Aerospace Technology, Vol. 24 No. 1, pp. 18-24. https://doi.org/10.1108/eb032122
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