TrackedStandard is Vehicles.Excavator.Base:
    .doc: """
    Defines a tracked excavator of the most common type, i.e.
    - mono boom excavator arm with stick and bucket actuators.
    - full 360 swing joint (slew joint)
    - standard tool connection linkage
    """

    with Vehicles.Excavator.Configurations.Tracked
    with Vehicles.Excavator.Configurations.SwingJoint
    with Vehicles.Excavator.Configurations.Tool

    arm becomes Vehicles.Excavator.Components.Arm.Standard

    chassis becomes Vehicles.Chassis.Rigid.Base with Vehicles.Chassis.Interfaces.Outputs:
        observer:
            redirected_parent: chassis.body
            position: {0.0, 0.0, 0.0}

    drive_train is Physics3D.System
