RESEARCH OF FLIGHT CHARACTERISTICS OF ROD-TYPE PROJECTILE WITH TRIANGULAR CROSS-SECTION

摘要

The flight performance of armor piercing fin-stabilized discarding sabot projectile's body with triangular cross-section and circular cross-section were respectively experimentally investigated. Aerodynamic coefficients and derivatives of the two projectiles were determined from flight experiments and the result shows: The projectile with triangular cross-sections has few resistance and better static stability. Whose stability capability is higher than the projectile with,circular cross-section. Under low speed rotation, the projectile with triangular cross-sections has great Magnus moment and more possible to increase the projectile distribution. The projectile with triangular cross-section has higher lift-drag ratio and is more suitably used for rotation missile shape.