BellCrank is DualSuspensionSteering:
    .doc: """
Bell-crank steering geometry.
"""
    with Physics.Signals.AngleInputTrait
    with Physics.Signals.AngleOutputTrait

    knuckle_angle: -1.885
    knuckle_length: 0.14
    initial_angle_right_tie_rod is Real: 0
    steering_column_distance is Real: 1.0
    gear is Real: 1.0

    steering_angle_input is Physics.Signals.AngleInput:
        source: this

    steering_angle_output is Physics.Signals.AngleOutput:
        enabled: false
        source: this
