Head tracking in Microsoft Flight Simulator X (FSX) lets you look out of the side window in the circuit, keep the runway in sight on base and glance down at your instruments just by turning your head. The TrackHat Sensor V2 does it with no clip, hat or reflectors to wear.

Why FSX pilots use head tracking
FSX is still flown by many for its huge library of aircraft and add-ons. Head tracking brings it right up to date: instead of cycling views or using a hat switch, you simply look where you want to, with both hands on your controls. Small head movements become large view movements, so you never have to turn away from the screen.

How to set up TrackHat in FSX
1. Install TrackHat opentrack (Windows) and plug in the Sensor V2. It is detected automatically and comes with ready-made settings.
2. Click Start, sit in your normal flying position, then launch Microsoft Flight Simulator X.
3. Set a recentre key in TrackHat opentrack so you can reset your view at any time.
FSX reads head tracking through the same protocol as TrackIR, which TrackHat opentrack outputs.

FSX head tracking FAQ
Does FSX support head tracking? Yes. FSX supports TrackIR-style head tracking, and TrackHat opentrack uses the FreeTrack protocol, which works with the same games as TrackIR.
Do I need to wear anything? No. The Sensor V2 finds your head using infrared light and a machine-learning model, so there is no clip, hat or reflector.
Do I need an add-on? No. FSX reads head tracking directly, so there is no extra add-on to install for the basic setup.