701 / | HD | DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION |
1 | DF | VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION {19} |
3 | DF | .~ Aeronautical vehicle {4} |
16 | .~.~ With indication or control of landing {2} | |
17 | DF | .~.~.~> I.L.S. or radar guidance |
18 | DF | .~.~.~> Profile of descent |