German winged orbital launch vehicle. Under the Future European Space Transportation Investigation Programme (FESTIP) of 1994-1999 French agencies and contractors designed a number of alternative reusable space launchers. This one was a Horizontal Takeoff / Horizontal Landing Two Stage to Orbit proposal with Mach 3 stage separation. Later evolved into the FESTIP FSS-11,which was merged with FSS-12. Reusable and expendable upper stage options.