(= (Reference-Point Gimbal-2-Platform)
(Reference-Point Gimbal-2-Base))
(= (Orientation (Reference-Frame Gimbal-2-Platform)
(Reference-Frame Gimbal-2-Base))
(Simple-Rotation 3 Gimbal-2-Angle))
(<- (Gimbal-2-Torque ?X)
(Dot (Basis.Vec (Reference-Frame Gimbal-2-Base) 1)
(Applied-Torque Gimbal-2-Base Gimbal-2-Platform)))