SHELL Russian patent published in 2003 - IPC

FIELD: ammunition of the smoothbore artillery, in particular, shells with fixtures for axial stabilization of flight by spin produced under the action of gases of the burnt propellant charge. SUBSTANCE: spiral centering lugs of the gas-dynamic turbine and aerodynamic blades positioned on the body cone opposite the bottom cut are made on the side surface of the shell. A carrier tracer bushing that is made jointly with the radial ribs of the aerodynamic blades is installed in the bottom undercutting of the body. The mentioned blades are made with a bevel of the front end faces in the opposite direction of inclination of the lug spirals of the gas-dynamic turbine. Fixing rods of plastic material fastened axially to the radial ribs project over the centering ring. EFFECT: improved means of aerodynamic longitudinal stabilization of the shell for firing from a smoothbore gun. 4 dwg, 1 ex