Abstract: The subject matter of this specification can be embodied in, among other things, a handlebar-shaped housing having an elongate central body having a first hand grip at a first axial end, a first flexible paddle affixed to the first hand grip, a first deflection sensor configured to identify a first amount of deflection of the first flexible paddle, a second hand grip at a second axial end, a second flexible affixed to the second hand grip, a second deflection sensor configured to identify a second amount of deflection of the second flexible paddle, and circuitry configured to identify one or more of a pitch, a roll, and a yaw of the elongate central body, and a controller configured to receive an orientation sensor signals, deflection signals from the deflection sensors, and provide a control signal based on one or more of the sensor signals.