244 / | HD | AERONAUTICS |
75 R | DF | AIRCRAFT CONTROL {8} |
76 R | DF | .~ Automatic {10} |
175 | DF | .~.~ Electric course control {10} |
183 | DF | .~.~.~ Of aircraft on its landing course {2} |
184 | DF | .~.~.~.~ By steering or yaw {1} |
185 | .~.~.~.~.~ And vertical glide path control |