Projectile control device

Details Projectile control device Projectile control device

2009-03-17

2011-12-13

Gregory, Bernarr (Department: 3662)

Aeronautics and astronautics

Missile stabilization or trajectory control

Stabilized by rotation

C244S003100, C244S003150, C244S003210, C244S11000H, C244S113000, C102S382000, C102S384000, C102S501000

Reexamination Certificate

active

08076623

ABSTRACT:
A spin-stabilized projectile is steered by taking air from an air intake at the front of the projectile, and expelling the air along an outer surface of the projectile to alter its trajectory toward the desired impact location. Air taken in through the air intake is directed toward a rotor that is able to rotate relative to the rest of the projectile. The rotor has an outlet that may direct the air taken in at the air inlet out in a direction having both radial and circumferential components. The force produced in the radial direction provides a steering force substantially normal to the projectile axis, used to steer the projectile. The force produced in the circumferential direction is used to provide impetus to spin the rotor. A brake is used to control the rotational speed of the rotor, to control the direction that the air is expelled from the projectile.

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Definition of the word “rotor” in “Webster's Third New International Dictionary, Unabridged,” Literature Online Reference Edition from ProQuest LLC; copyright in the year 1993.

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