发明授权
US06443391B1 Fin-stabilized projectile with improved aerodynamic performance 失效
具有改进的空气动力学性能的Fin-stable弹丸

  • 专利标题: Fin-stabilized projectile with improved aerodynamic performance
  • 专利标题(中): 具有改进的空气动力学性能的Fin-stable弹丸
  • 申请号: US09859775
    申请日: 2001-05-17
  • 公开(公告)号: US06443391B1
    公开(公告)日: 2002-09-03
  • 发明人: Gregory MalejkoJohn C. Grau
  • 申请人: Gregory MalejkoJohn C. Grau
  • 主分类号: F42B1026
  • IPC分类号: F42B1026
Fin-stabilized projectile with improved aerodynamic performance
摘要:
A projectile includes an elongated forebody and an aft section secured to the forebody. The aft section includes a pair of fins affixed to an aerodynamic, cylindrical section. The lift generated by the low-drag pair of fins is sufficient to counteract most foreseeable angles of attack to be experienced by the projectile. The aft section further includes a bearing that couples the aft section to the forebody of the projectile and is capable of allowing the aft section to rotate freely about the longitudinal axis of the projectile and independently of the forebody. Thus, during flight the aft section rotates into the maximum lift plane and provides a restoring moment to the projectile, thus providing necessary stability to the projectile while imparting minimum drag.
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