| 188 / | HD | BRAKES |
| 266 | DF | INTERNAL-RESISTANCE MOTION RETARDER {29} |
| 281 | DF | .~ Resistance alters relative to direction of thrust member (e.g., high resistance in one direction, low in the other) {1} |
| 282.1 | DF | .~.~ Via valved orifice in thrust member {4} |
| 282.2 | DF | .~.~.~ Valve actuated by electrical system {2} |
| 282.4 | ![]() | .~.~.~.~ System having distinct selections (e.g., hard, medium, soft) |