Yep... This is a Space Shuttle mounted on top of a Boeing 747. This 747 was used to carry the NASA Space Shuttle from it's landing location (Edwards Air Force Base on the westcoast, for example) to the launch complex located at Kennedy Space Center in Florida. It also carried the Space Shuttle to its museum location(s) after the retirement of the fleet. 2 Boeing 747s have been built in this configuration.

This mod is a modification of the Boeing 747-100:
https://www.gta5-mods.com/vehicles/boeing-747-100

It has same features, plus the obvious model changes like the Space Shuttle. The collision mesh has been adapted, so the Shuttle is a solid object as well. This mod includes two liveries, so to say:

-747 #905 with Space Shuttle Discovery mounted
-747 #911 with Space Shuttle Endeavour mounted

This mod is an Add-On(!)

Like I have said before, I'm really eager to release more aircraft (military/civillian), helicopters and military vehicles. If you like my work and want to see more, please show your support donating. It helps me affording the things I need to continue modding (ZM3, model files, etc)

And thanks a lot for the support I have received already :)

(And you could keep up with my YT channel to see WIP videos of upcoming mods)