The course represents the real tracks at Reno Stead, NV airport where the STIHL National Championship Air Races take place. Actually the course is several courses for different classes overlaid on the same piece of ground.
The map of courses is enclosed in docs folder. More about cources you can find on the organizer's website: https://airrace.org/the-course-pits/
To instal just unzip the files into your \Documents\Aerofly FS2\scenery\places\US folder.
Pylons come from https://www.digitalcombatsimulator.com/en/files/3196986/
