The company developed and built prototypes of sounding rockets and launched them near Cuxhaven.
The first rocket developed by the BSFEGmbH was an improved version of the Kumulus, which was first launched on 19 November 1962 and reached a height of 50 kilometres.
The signals from all these rockets were also received at the observatory in Bochum (300 km SSW of Cuxhaven).
On 5 December 1963 the BSFEGmbH gave a flight demonstration of their rockets to military staff of non-NATO-countries.
In 1964, these experiments were discontinued with a temporary injunction, which is still valid today, after a fatal accident at a rocket demonstration by Gerhard Zucker at Braunlage, although Gerhard Zucker did not cooperate with the BSFEGmbH or the Hermann-Oberth-Gesellschaft e.V.