| 摘要 |
The invention relates to a canard fin unit intended for guiding artillery projectiles ( 1 ) fired on ballistic trajectories, which comprises a number of identical canard fins, deployable from a first passive, retracted position into a second active position once the projectile ( 1 ) associated with the fin unit has been launched from the barrel from which it is intended to be fired, the canard fins ( 3 a-d) in the active position being individually controllable. The invention resides in the fact that each canard fin ( 3 a-d) is individually supported and controlled in its own swivel arm ( 6 a-d), extending in the longitudinal direction of the projectile, which arm is in turn pivoted about its own swivel shaft ( 7 a-d) arranged transversely to the direction of flight of the projectile, the swivel arms ( 6 a-d) of all canard fins ( 3 a-d) being moved together from the retracted to the deployed position by one and the same operating element ( 10 ), displaceable in the longitudinal direction of the projectile. In an especially preferred embodiment of the canard fin unit according to the invention the said fins ( 3 a-d) are each coupled to their respective control elements ( 8 a-d), 9 a-d), 24 a-d) only when they reach their respective deployed positions.
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