FIELD: transport.;SUBSTANCE: set of inventions relates to method for improving propulsor floatation ability of military equipment - caterpillar tank on loose ground and waterlogged bases and to propulsor arrangement. To improve propulsor floatation ability the caterpillar belts of heavy tank are installed at distance from each other of b=B on ground and B≤1 m on peat. In the device, grousers on outer edges of caterpillar belts are made extending and forming common transversal semicylindrical surface. Box-type body is located inside caterpillar belts between carrying, supporting, jockey and driving rollers. Hull side plates are installed at an angle throughout the height of body thus continuing outlines of gun turret. Through vertical body aperture of gun turret turning circle is located immediately between inside edges of caterpillar belt branches.;EFFECT: improved floatation ability of caterpillar propulsor on loose grounds and peat moors.;7 cl, 8 dwg
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