in the early years of german sounding rocket research, the payloads were designed and built by engineers and technicians from the companies dornier, mbb, kayser-threde, and erno. parallel to the withdrawal of dornier and mbb from payload construction for sounding rockets, moraba developed and tested, in addition to the already existing spin rate and attitude control modules and parachute recovery systems, mechanical and electrical flight systems which were difficult or impossible to obtain on the market. the first and successful application of a rocket-qualified data acquisition and transmission / reception system on a satellite was in the re-entry experiment "express". for this project, in late 1994 a complete transmitting and receiving station with all necessary functions was set up by moraba in the south australian desert and was operated over the turn of the year. after the launch with a japanese satellite launcher and a 7-day orbital flight, the landing of the express capsule was planned to occur in the vicinity of the town of coober pedy (australia). however, due to a malfunction of the rocket, the capsule entered an elliptical orbit with very low perigee and landed in africa after only a few revolutions.