US PATENT SUBCLASS 244 / 87
.~ Rudders and empennage


Current as of: June, 1999
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244 /   HD   AERONAUTICS

75 R  DF  AIRCRAFT CONTROL {8}
87.~ Rudders and empennage {3}
88  DF  .~.~> Rudders universally mounted
89  DF  .~.~> Elevators both front and rear
90 R  DF  .~.~> Ailerons and other roll control devices {2}


DEFINITION

Classification: 244/87

(under subclass 75) Auxiliary airfoils and their arrangements with respect to each other or to fixed portions of aircraft, for steering and stabilizing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

91, for fixed stabilizing fins.