Encyclopedia Astronautica
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.

Payload: 5.00 kg (11.00 lb) to a 35 km altitude.

Gross mass: 24 kg (52 lb).
Payload: 5.00 kg (11.00 lb).
Height: 4.12 m (13.50 ft).
Diameter: 0.15 m (0.49 ft).
Thrust: 4.98 kN (1,120 lbf).
Apogee: 35 km (21 mi).
First Launch: 1961.09.16.
Number: 1 .

More... - Chronology...


Associated Countries
See also
  • 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. More...

Associated Manufacturers and Agencies
  • DRG German manufacturer of rocket engines and rockets. Deutsche Raumfahrtgesellschaft eV, Germany. 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...

Associated Stages
  • Cirrus I-2 Solid propellant rocket stage. Loaded mass 100 kg. Thrust 5.00 kN. More...

Cirrus I Chronology


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

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