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Airspeed Calibration
This action allows performing airspeed calibrations, there are two options:
Pre-flight calibration. This calibrates the offset value, the pitot tube should be covered when performing this calibration.
In-flight calibration. This allows starting or stopping of the in-flight airspeed ratio calibration.
Under the hood
Depending on the type a different command is used:
Pre-flight calibration
MAV_CMD_PREFLIGHT_CALIBRATION as a COMMAND_LONG
| Field Name | Type | Value | Description |
|---|---|---|---|
| param 1 | float | 0.0 | |
| param 2 | float | 0.0 | |
| param 3 | float | 1.0 | Ground Pressure Calibration |
| param 4 | float | 0.0 | |
| param 5 | float | 0.0 | |
| param 6 | float | 0.0 | |
| param 7 | float | 0.0 |
In flight calibration
MAV_CMD_DO_AUX_FUNCTION as a COMMAND_LONG
| Field Name | Type | Value | Description |
|---|---|---|---|
| param 1 | float | 91.0 | Auxiliary Function: Airspeed Ratio Calibrate |
| param 2 | float | 0.0 or 2.0 | 0.0 for stop and 2.0 for start |
| param 3 | float | NaN | |
| param 4 | float | NaN | |
| param 5 | float | NaN | |
| param 6 | float | NaN | |
| param 7 | float | NaN |
INFO
MAV_CMD_DO_AUX_FUNCTION is the ArduPilotMega MAVLink dialect, it may not be supported by non ArduPilot systems.