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} |
213 | DF | .~.~.~.~ By flap and/or spoiler {2} |
215 | .~.~.~.~.~ At trailing edge {2} | |
216 | DF | .~.~.~.~.~.~> Variable gap type, e.g., "Fowler Flap" |
217 | DF | .~.~.~.~.~.~> Plural, relatively pivotable |