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.