ROCKET PROJECTILE Russian patent published in 2000 - IPC

FIELD: rocketry. SUBSTANCE: rocket projectile has a nose fuse, warhead, solid-propellant jet engine and a folding fin. The blades are made with a thickness decreasing towards the tip chord. In the middle cross-section the blade tip chord, axis of its turn and the projectile axis are positioned on the same straight line. The span of blades makes up 2.0 to 2.3 of the caliber. The blades attachment points are spaced at 0.18 to 0.21 and 0.65 to 0.70 of the blade length from its front edge. The section of the blade trailing edge adjoining the root chord is made with an angle of 26 to 30 deg. and length of 0.15 to 0.22 of the caliber. The section of the blade trailing edge adjoining the tup chord is made with a sweep forward at an angle of 19 to 21 deg., and the distance from the blade trailing edge to the nozzle exit section makes up 0.1 to 0.3 of the caliber. EFFECT: enhanced stability of projectile flight at maximum velocities, enhanced flying range of projectile. 3 dwg