Ssg 747 Suprbay -

As the landing gear tucks into the belly and the climb to FL350 begins, the "Suprbay" sits quiet in the sim—a vast, empty space where, in another reality, Lufthansa passengers are sipping champagne on their way to Buenos Aires. Here, it is just you and the FMC, watching the magenta line guide 400 tons of math and texture through a simulated sky. In a world moving toward twin-engine efficiency, this virtual 747 remains the ultimate refuge for those who still believe four engines are better than two.

In the flight simulation community, specifically for X-Plane 11 and 12, the and Freighter are widely used "mid-level" aircraft add-ons.