The IRJ-1 is a HiperSonic Aircraft it is used for Milatery or Civil
This is my Third spacecraft add-on it is not perfect some fechers will be put in to later versions and up grades
The IRJ-1 is not an inter planetary vessel so you can only use it arund earth
Requires Vinka's Spacecraft3
When you make this spacecraft in Scenario Editor name it IRJ-1 or orbiter 2006 will crash