US PATENT SUBCLASS 244 / 212
.~.~.~.~.~ Having trailing edge flap

Current as of: June, 1999
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244 /   HD   AERONAUTICS

34 R  DF  AIRCRAFT SUSTENTATION {2}
35 R  DF  .~ Sustaining airfoils {7}
198  DF  .~.~ With lift modification {3}
201  DF  .~.~.~ Variable {6}
204  DF  .~.~.~.~ By controlling boundary layer {6}
212.~.~.~.~.~ Having trailing edge flap

DEFINITION

Classification: 244/212

(under subclass 204) Boundary layer control means in combination with a flap, the flap being (1) a section of the airfoil pivoted to the remainder of the airfoil at the trailing edge thereof, or (2) an auxiliary element pivotally attached to the airfoil at the trailing edge thereof.