Flip your browser right into a Digital Flight Take a look at Setting – Drones Information


The AlphaLink Virtual Flight Test Environment (VFTE) enables the execution of virtual flight tests with and without the Stability Augmentation System in a web browser.

The best results are achieved in the Firefox browser. Other browsers can be used. Please allow 10 to 30 seconds for your browser to load the application.

The graphical user interface at the top right of the screen can be used to interact with the VFTE. The detailed description of the control interface can be found below.


Run – Press this button to start the simulation. During operation it is not possible to use Orbit Controls to adjust the view.

Pause – Press this button to pause the animation.

Reset – Press this button to reset the simulation and bring the aircraft (current model: Talon) back to its starting position.

Perspective – Press this button to change perspective. The perspective is updated while the simulation is running.

Aircraft controls

The aircraft controls can be accessed via the GUI slider and keyboard. Please note: It is not possible to enter values.

Controller (stability extension system)

The controller can be switched on and off with the on / off button. The parameters can be set using the slider or by entering values.

The pitch damper calculates an additional elevator deflection based on the pitch rate added to the piloted signal. The relationship between the measured pitch rate and the additional elevator signal can be adjusted by the gain factor in the GUI. With the roll damper, an aileron signal is determined by measuring the roll rate, which is added to the pilot’s command. The gain is set via the GUI. For the yaw damper, the yaw rate is first passed through a washout with an adjustable time constant in the GUI. Then the filtered signal is multiplied by the factor of the yaw damper (adjustable in the GUI) and an additional rudder signal is calculated which is superimposed on the pilot inputs.

Click here to start the application AlphaLink Virtual Flight Test Environment

If you

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