uint8 VEHICLE_STATE_INITIALISING    = 0
uint8 VEHICLE_STATE_ARMED           = 1
uint8 VEHICLE_STATE_FLYING          = 2
uint8 VEHICLE_STATE_PREARM          = 3
uint8 VEHICLE_STATE_PREARM_GPS      = 4
uint8 VEHICLE_STATE_SAVE_TRIM       = 5
uint8 VEHICLE_STATE_ESC_CALIBRATION = 6
uint8 VEHICLE_STATE_FAILSAFE_RADIO  = 7
uint8 VEHICLE_STATE_FAILSAFE_BATT   = 8
uint8 VEHICLE_STATE_FAILSAFE_GCS    = 9
uint8 VEHICLE_STATE_CHUTE_RELEASED  = 10
uint8 VEHICLE_STATE_EKF_BAD         = 11
uint8 VEHICLE_STATE_FW_UPDATE       = 12
uint8 VEHICLE_STATE_MAGCAL_RUN      = 13
uint8 VEHICLE_STATE_LEAK_DET        = 14
uint8 VEHICLE_STATE_GPS_FUSION      = 15
uint8 VEHICLE_STATE_GPS_GLITCH      = 16
uint8 VEHICLE_STATE_POS_ABS_AVAIL   = 17
uint8 VEHICLE_STATE_LOST            = 18
uint8 VEHICLE_STATE_THROW_READY     = 19
uint8 VEHICLE_STATE_POWERING_OFF    = 20
uint8 VEHICLE_STATE_VIDEO_RECORDING = 21


uint8 VEHICLE_YAW_EARTH_CENTIDEGREES = 0

# set the type of aux data to be sent
uint8 aux_data_type

# bytes containing packed auxiliary data
# placing it first so we don't do TAO
uint8[<=255] aux_data

# Current Vehicle State Mask
uint64 vehicle_state