Encyclopedia Astronautica
Cirrus



cirrusb.jpg
Cirrus II
Cirrus-B as displayed at Oberth Museum in Feucht
Credit: Harald Lutz
Cirrus was a two-stage sounding rocket developed by the German Rocket Society in the late 1950's. All launches were made from Cuxhaven, and discontinued when the German government prohibited civilian rocket launches in June 1964.

The propellant was developed by the DRG and fabricated at Liebenau Company for Production of Chemical Materials (GmbH zur Verwertung chemischer Erzeugnisse Liebenau).

More... - Chronology...


Associated Launch Vehicles
  • Cirrus Cirrus was a two-stage sounding rocket developed by the German Rocket Society in the late 1950's. All launches were made from Cuxhaven, and discontinued when the German government prohibited civilian rocket launches in June 1964. The propellant was developed by the DRG and fabricated at Liebenau Company for Production of Chemical Materials (GmbH zur Verwertung chemischer Erzeugnisse Liebenau). More...
  • Cirrus I German sounding rocket. Cirrus I could carry meteorological or biological payloads up to a speed of 1000 m/s and an altitude of 35 km. More...
  • Cirrus II German sounding rocket. Cirrus II could carry meteorological or biological payloads to a speed of over 1000 m/s and an altitude of 50 km. The first stage produced 1800 kgf and the second 508 kgf. More...

Associated Launch Sites
  • Cuxhaven As the only site in Germany with an unrestricted over-water firing sector over the North Sea, Cuxhaven was once touted as 'the Cape Canaveral of Germany'. Primarily known to space historians for the three post-war V-2 launches under project Backfire, it played an important role in the nascent post-World War II German rocketry. A nearly completely unknown series of scientific sounding rocket launches were made from the area in 1957-1964 before the launch site was closed on (purportedly) safety and (actually) military grounds. More...

Cirrus Chronology


1961 September 16 - . Launch Site: Cuxhaven. LV Family: Cirrus. Launch Vehicle: Kumulus.
  • Cirrus rocket reaches 50 km altitude - . Nation: Germany. The first Cirrus rockets are launched. Cirrus I, a two stage rocket, with each stage providing 508 kgf, reached a velocity of 750 m/s (Mach 2.5) and 35 km altitude. Cirrus II, 4.155 m long, with a thrust of 1.8 tonnes, reached 1000 m/s and an altitude of 50 km. Kumulus I and II took biological specimens aloft. Each Kumulus had a mass of 28 kg, was 3 m long, produced 508 kgf, and reached 750 m/s, Mach 2.0. Kumulus I carried the Mexican salamander Lotte to an altitude of 12 km. Lotte landed safely in the Cuxhaven flats. Kumulus II took the goldfish Max to an altitude of 15 km, but Max, enclosed in a plexiglass globe, made a hard landing.

1961 September 16 - . Launch Site: Cuxhaven. LV Family: Cirrus. Launch Vehicle: Cirrus I.
  • Test mission - . Nation: Germany. Agency: DRG. Apogee: 35 km (21 mi).

1961 September 16 - . Launch Site: Cuxhaven. LV Family: Cirrus. Launch Vehicle: Cirrus II.
  • Test mission - . Nation: Germany. Agency: DRG. Apogee: 50 km (31 mi).

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