Current Airspeed

R2026b

Read the estimate of true airspeed (TAS) in m/s from the ArduPilot Attitude Heading Reference System (AHRS)

Since R2026b

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  • Current Airspeed block

Libraries:
UAV Toolbox Support Package for ArduPilot Autopilots / Controller Interface Blocks / Plane Blocks

Description

Add-On Required: This feature requires the UAV Toolbox Support Package for ArduPilot Autopilots add-on.

The Current Airspeed block reads the estimate of true airspeed (TAS) in m/s from the ArduPilot Attitude Heading Reference System (AHRS).

Use this block to access the estimated true airspeed of the vehicle for navigation, guidance, and control workflows. Typical applications include airspeed feedback for control loops, stall prevention logic, and cruise speed management in fixed-wing autopilot designs.

The block also outputs a validity status (isValid) indicating whether a valid airspeed estimate is available. Use this status signal to implement fallback logic or to gate downstream processing on airspeed data quality.

This block supports only ArduPlane vehicle types.

Ports

Output

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Indicates whether a valid airspeed estimate is available. Outputs true when valid and false otherwise.

Data Types: Boolean

Outputs the estimated true airspeed (TAS) of the vehicle in m/s as reported by the ArduPilot AHRS.

Data Types: single

Parameters

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Specifies the sample time of the block. A value of -1 indicates that the block inherits the base rate and executes at the model's fundamental sample time.

Version History

Introduced in R2026b

See Also

Blocks