Trajectory modification of a spinning projectile by controlling the roll orientation of a decoupled portion of the projectile that has actuated aerodynamic surfaces

摘要

An apparatus and system for controlling the trajectory of a projectile having two rotationally decoupled sections, wherein the first section is rotationally decoupled from the second section. The first section of the projectile contains a navigation system. The first section also contains an actuator by which aero-control surfaces on the second section are actuated. The second section may have external aero-spin surfaces which provide a torque counter to the rotation of the base projectile. The apparatus and system also includes embodiments having applications for nose sections of projectiles.

主权项

1. A trajectory control apparatus for a projectile, comprising:
a first section including
a navigation/targeting system, andan aero-control surface actuator in electronic connection with the navigation/targeting system; a second section rotationally decoupled from the first section, having
an exterior surface, andone or more deployed or deployable aero-control surfaces in mechanical connection with the aero-control surface actuator, wherein the aero-control surfaces are rotatable and located on the second section exterior surface, and means for de-spinning the second section as the first section spins during the projectile's flight.