View o' t' launch operations o' a four stage rocket usin' as first stage an stratospheric balloon. Avast! This was t' most advanced system that used this combination called "Rockoon". It was a launch under t' umbrella o' t' FARSIDE project. *** Brought t' you by StratoCat - Historical recopilation project on t' use o' stratospheric balloons in t' scientific research, t' military field and t' aerospace activity. Well, blow me down! Visit us at http://stratocat.com.ar/indexe.html