Install flightgear-data-models by entering the following commands in the terminal:
sudo apt update sudo apt install flightgear-data-models
Description:
FlightGear Flight Simulator -- standard models
FlightGear is a free and highly sophisticated flight simulator. . This package contains the object models that come with the standard FlightGear distribution.
Homepage: http://www.flightgear.org/
Version: 1:2018.1.1+dfsg-1
Section: universe/games