US PATENT SUBCLASS 244 / 178
.~.~.~.~ Trim control

Current as of: June, 1999
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244 /   HD   AERONAUTICS

75 R  DF  AIRCRAFT CONTROL {8}
76 R  DF  .~ Automatic {10}
175  DF  .~.~ Electric course control {10}
177  DF  .~.~.~ Multiple-axis altitude stabilization {2}
178.~.~.~.~ Trim control

DEFINITION

Classification: 244/178

(under subclass 177) System wherein the path of uniform flight is maintained by governing the position, or directing the movement, of auxiliary surfaces on airfoils, which auxiliary surfaces modify the sustaining or controlling characteristics of the airfoil.