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    • 7. 发明授权
    • Training projectile
    • 训练射弹
    • US6123289A
    • 2000-09-26
    • US71453
    • 1998-04-20
    • Leon ManoleWilliam RiceStewart GilmanJohn DineenFrank RennerMark YoungAnthony Farina
    • Leon ManoleWilliam RiceStewart GilmanJohn DineenFrank RennerMark YoungAnthony Farina
    • F42B8/12F42B10/06F42B10/48F42B10/00F42B8/00F42B10/56
    • F42B10/06F42B10/48F42B8/12
    • An aerodynamic device, such as a projectile includes an elongated forebody, and an aft section secured to the forebody. The aft section acts as a d control device, and includes a connecting member that extends integrally in a conically shaped flared section, for generating a lift force to help stabilize the projectile during forward flight. The aft section further includes a flange that extends from the flared section, and that provides velocity decay and optimal drag, in order to limit the projectile flight and descent within a predetermined safety or emergency range. The flared section is defined between an innermost edge positioned adjacent to the connecting member, and an outermost edge positioned adjacent to the flange. The flange includes a forward facing wall that extends from the outermost edge and that has a height "H" that controls the amount of drag on the projectile, such that the outer diameter of the aft section is less than, or equal to the inner diameter of the gun barrel from which the projectile is fired.
    • 诸如射弹的空气动力学装置包括细长的前体和固定到前体的后部。 后部部分用作拖曳控制装置,并且包括连接构件,该连接构件一体地延伸在锥形扩张部分中,用于产生升力以帮助在向前飞行期间稳定射弹。 后部段还包括从扩张部分延伸的凸缘,并且其提供速度衰减和最佳阻力,以便在预定的安全或紧急范围内限制射弹飞行和下降。 扩口部分限定在邻近连接部件的最内边缘和邻近凸缘定位的最外边缘之间。 凸缘包括从最外边缘延伸的具有高度“H”的向前壁,该高度“H”控制弹丸上的阻力量,使得后部的外径小于或等于内径 枪弹被射击的枪管。