The site that aims to introduce and teach you to use the X-Plane 12 Flight Simulator.
This site won’t teach you how to fly but it will help you get the most out of X-Plane
Here you’ll find the full range of my X-Plane e-book handbooks, ready to buy and download directly. Browse the growing library of weekly X-Plane 12 tips. Or read the story of how all this got started.
This week’s tip:
- True Airspeed and Groundspeed Indicator
Did you know that hidden in the Speeds option of the data display, you get a table which not only shows your IAS [Indicated Air Speed] and TAS [True Air Speed], but also shows a GS [Ground Speed] indicator as well. Both in knots and mph.

In the Settings –> Data Output screen, you can also click the Disk (data.txt file) checkbox and a series of speeds gets written to a txt file. You can even set the time increment between each recorded data point.

Here’s a link to a useful Wikipedia article explaining what airspeed actually is: