| 摘要 |
A ring-wing assembly for use in combination with a missile or mortar adapted to be launched from a launch tube or barrel allows attachment of large lifting surfaces to the projectile as it is launched from a barrel. The ring-wing assembly generally comprises a stop ramp for generally encircling a missile body. The stop ramp having a forward-tapering ramp portion, and a sleeve assembly comprising a sleeve for encircling a body of a missile and a plurality of wings peripherally mounted on the sleeve. The sleeve has a rear inside tapered portion having a taper angle that is less than that of the ramp portion of the stop ramp. In use, the sleeve assembly is mounted on the nose end of a launch barrel. Upon missile launch, the sleeve assembly slides over the missile body until encountering and engaging with the stop ramp whereupon the sleeve assembly travels with the missile for extending the range and controllability of the missile. An alternate embodiment of the invention for use with a missile having front control surfaces, such as canards, employs a shear ring for retaining the canards in a retracted position while in the barrel. Upon missile launch, the sleeve assembly disengages the shear ring to allow deployment of the canards.
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