Aha? Thanks Paul for the clarification. You're quite right! I just sat in the rear seat of my Tiger Moth and, as you say, I can't stick my head out of the cockpit left or right using just my head movement. However used in conjunction with a keypress and mouse scroll wheel it is possible. Now that is probably using some addon app I set up in FS9 ages ago and has nothing to do directly with Opentrack. I've been away from FS9 for quite a few years but I seem to remember I used to stick my head out the window using those key commands back in the day when I still used Trackir. Was that possible back then(sticking my head out of the cockpit) with Trackir alone in FS9?