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Method and apparatus for correcting the trajectory of a fin-stabilized, ballistic projectile using canards

Patent image
CCDC ARL

A system and method of trajectory correction includes a voice coil coupled to the projectile and providing a linear force; a linkage assembly coupled to the voice coil and comprising: a linkage shaft; a slot coupled to the linkage shaft; and a pin loosely coupled to the slot to form a first pivot point, wherein the linkage assembly converts the linear force to a torque force through the first pivot point; and a canard assembly coupled to the linkage assembly and including a canard shaft coupled to the linkage shaft to form a second pivot point; and at least one canard coupled to the canard shaft, wherein the torque force is transmitted to canard shaft by the linkage shaft, and wherein the canard shaft transmits the torque force to the canard to correct the trajectory of the projectile.

Inventors: 
Celmins, Ilmars
Patent Number: 
Technical domain: 
Machines and Processing
FIle Date: 
2010-09-01
Grant Date: 
2015-01-13
Grant time: 
1,595 days
Grant time percentile rank: 
29
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY