The IPNSC is used as a inter planet ferry. Dock two delta gliders to it and fly it to any planet in the solar system.
I know it is not perfect some features will be put in to later versions and up grades
It is an inter planetary vessel so fell free to explore
ONE OF THE SCENARIOS needs the THOTH-2 addon to run it. It can be found at http://www.orbithangar.com/searchid.php?ID=3990
The other scenario runs on its own