Metrics typically displayed on a HUD for fixed wing aircraft

                airspeed                  : Current airspeed in m/s (float)
                groundspeed               : Current ground speed in m/s (float)
                heading                   : Current heading in degrees, in compass units (0..360, 0=north) (int16_t)
                throttle                  : Current throttle setting in integer percent, 0 to 100 (uint16_t)
                alt                       : Current altitude (MSL), in meters (float)
                climb                     : Current climb rate in meters/second (float)

def vfr_hud_send(self, airspeed, groundspeed, heading, throttle, alt, climb, force_mavlink1=False):
                '''
                Metrics typically displayed on a HUD for fixed wing aircraft

                airspeed                  : Current airspeed in m/s (float)
                groundspeed               : Current ground speed in m/s (float)
                heading                   : Current heading in degrees, in compass units (0..360, 0=north) (int16_t)
                throttle                  : Current throttle setting in integer percent, 0 to 100 (uint16_t)
                alt                       : Current altitude (MSL), in meters (float)
                climb                     : Current climb rate in meters/second (float)

                '''
                return self.send(self.vfr_hud_encode(airspeed, groundspeed, heading, throttle, alt, climb), force_mavlink1=force_mavlink1)