PHYSIOLOGICAL AND OPERATIONAL CHARACTERISTICS OF M-24 TANK.

Abstract : The purpose of the research was to appraise subject tank from the standpoint of physiological characteristics and limitations. Conclusions: Provision for drawing heated air from engine compartment for crew compartment ventilation in winter is potentially dangerous; present system of ventilation is inadequate for control of gun fumes; provisions for close-in general vision are inadequate; driver's vision should be improved; fire control provisions are satisfactory except for fact that present arrangement will not accommodate M10 periscopic sight; head rest adjustment on telescope should be improved; bow hatch locks for open position not sufficiently positive for operation over rough terrain; effort required to open escape hatch is too great; padding around hatch openings is insecurely fastened; seat backs are not easily removed and more positive fasteners are required for seat cushions; there is insufficient space for accelerator pedal action when large shoes and arctics are worn; 75 mm gun recoil interferes with commander's right leg.