P the invention relates to a chassis of a utility vehicle which comprises a minimum number of pieces. / p & & p & the frame comprises two flat plates rectangular lengthened 40 spaced one another, the opposite lateral edge members 44 and 42 are end opposite each other by reinforcement plates and which include openings aligned 22, 24, 26 formed in locations # between the edges 44, 42. Reinforcement plates 74 fixed between the two plates lengthened 40 surround each pair of openings aligned. The various reinforcement plates are arranged so that the regions of concentration of stresses localized are practically deleted. / p & & p & application to the turret comprising an arrow reach by a rotary plate mounted on a chassis of vehicle. / p
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