Is airspeed reported via MAVLINK when no airspeed sensor is enabled? I know that it is continually computed by Arduplane even if no airspeed sensor is present as is wind speed and direction. The reason I ask, is that on my OSD, I can display wind speed, ground speed, but not airspeed....its always 0. This is Night-Ghost's extended MinimOSD-Extra software. Perhaps its an error in his software......I am using a Pixhawk system.