HAWK Wind and AHRS Enable for LX80x0, LX90x0, S10, or S100   
The HAWK and AHRS sensors are built-into all V9, V8, V80, S10 and S100 varios. To use the HAWK Wind and AHRS functionality it is necessary to purchase this software enable key. The artificial horizon and airspeed and altitude items can be setup to display on any page on the LX80X0 or LX90X0 display using the LXStyler program - or using the controls on the flight computer. The artificial horizon also displays on the V8 and V80 vario's display and on the S10 and S100 vario's display.


  • S10 and S100
    HAWK will run on all S10 and S100 units
  • LX80x0 and LX90x0
    HAWK will run on all devices from 4th Generation onwards and V8/V80 vario only.  The easiest way to check for compatibility with HAWK is to install the latest version (currently 8.04b) of the software and go to Setup->About.

Details are available in the LX80x0 or LX90x0 or S10, or S100 manual which is available here.

"Are you dreaming about having a real time wind indication in your glider? Do you feel sometimes in the mountainous regions or areas of convergence that the wind suddenly changes?”

Get real-time wind with HAWK

Real-time wind indication – 3D wind. HAWK option enables instantaneous wind readings on all 3 axes.

HAWK uses sensor fusion and advanced digital signal processing to estimate the air mass movement.

3-dimensional wind triangle
HAWK applies an “extended Kalman filter” (EKF) algorithm that jointly estimates all three dimensions of the air mass movement.

Instant results
EKF estimates the wind direction and velocity instantaneously (horizontal and vertical). No more waiting!

No compensation, no compromise
No compensation needed, since it uses no law of energy conservation. More accurate netto vario readings independent of glider speed.

No false thermals due to wind gusts = No more “stick” lift.

Wind indication
Wind screen enables you to view the instantaneous wind on the blue arrow and the wind average on the white arrow .

2 needle vario
A red and blue vario needles at the same time. Red shows the value of computations of the TEK while light blue shows the value of the EKF.

The results of the attitude estimate of the EKF can also be displayed as an artificial horizon.

HAWK Article

Availability and Supported Hardware
HAWK is a software option, which was released in spring 2021 for the LXNAV S10 and S100 varios.  It will be available in late autumn 2021 for LX80/90xx series soaring flight computer systems.

HAWK has been developed by Heinrich Meyr and Peng Huang and is licensed to LXNAV

HAWK Trial Version - Try it FREE for 31 Days
Fill the form (link below) in order to receive the HAWK demo option activation file for your (S10, S100) vario. After submitting the form, you will receive an email containing the demo activation file. The processing of your request is done automatically and can take a few minutes. The demo is valid for 31 days.
https://gliding.lxnav.com/news/hawk-wind-calculation/ (scroll down to the bottom of the page)

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  • Brands LXNAV
  • Product Code: LXNAV-HAWK
  • Availability: In Stock
  • $1,190.00

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