Encyclopedia Astronautica
Otrag


German manufacturer of rocket engines and rockets. Orbital Transport-und-Raketen Aktiengesellschaft, Germany.

More... - Chronology...


Associated Countries
Associated Engines
  • Otrag Otrag N2O4/Kerosene rocket engine. 27.5 kN. First and upper stages of low-cost booster. Out of production. Isp=297s. Pressure-fed, using cheapest possible propellants. Injection pressure: 40-15 bar; thrust control: 100-40 %. First flight 1977. More...

See also
Associated Launch Vehicles
  • Otrag $200 million was spent from 1975-1987 by Lutz Kayer in a serious attempt to develop a low-cost satellite launcher using clusters of mass-produced pressure-fed liquid propellant modules. The project was finally squelched by the German government under pressure from the Soviet and French. More...

Associated Launch Sites
  • Kapani Tonneo In December 1975 Otrag signed an agreement with the Congolese government to established a rocket range to test its low-cost rockets deep in the interior at Shaba (Katanga) province. The austere site included logistic support via antique British Argosy transports landing at a dirt strip on a plateau overlooking the jungle. Here a pad and gantry were erected and flight tests began in 1977. However Otrag's activities made the great powers nervous. The USSR was not interested in Germany achieving an indigenous long-range rocket activity. The government of the Congo was pressured by the USSR to withdraw permission to use the site. Otrag was thrown out of the country in April 1979. More...
  • Tawiwa Libyan rocket test range, 600 km south of Tripoli. Site of tests of Otrag's low cost launch vehicle from 1981 to 1982, reaching up to 150 kilometers altitude. More...

Otrag Chronology


1977 May 18 - . 08:15 GMT - . Launch Site: Kapani Tonneo. Launch Vehicle: Otrag. LV Configuration: OTRAG 1 4x9m.
  • Otrag Flight 1 - . Nation: Germany. Agency: OTRAG. Apogee: 15 km (9 mi). Summary: Four-module test vehicle, 6 m long. Propulsion test. Reached 20 km altitude. 100% successful..

1978 May 19 - . 22:01 GMT - . Launch Site: Kapani Tonneo. Launch Vehicle: Otrag. LV Configuration: OTRAG 2 4x9m.
  • Otrag Flight 2 - . Nation: Germany. Agency: OTRAG. Apogee: 30 km (18 mi). Summary: Four-module test vehicle, 6 m long. High altitude night test. Reached 150 km altitude..

1978 June 5 - . 11:40 GMT - . Launch Site: Kapani Tonneo. Launch Vehicle: Otrag. LV Configuration: OTRAG 3a. FAILURE: Failure. Heeled over and crashed after a few seconds.. Failed Stage: 1.
  • Otrag Flight 3 - . Nation: Germany. Agency: OTRAG. Apogee: 0 km ( mi). Summary: Four module test vehicle, 12 m long. Pitch and yaw control test. Attempt to reach 100 km, but veered off course on launch due to a valve on one unit being stuck at 50% thrust..

1981 March 1 - . 09:20 GMT - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 3 4x15m.
  • Otrag Flight 4 - . Nation: Germany. Agency: OTRAG. Apogee: 150 km (90 mi). Summary: Maximum range single stage test, reached 300 km..

1981 June 7 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 4 x 2.5 tonne thrust.
  • Otrag Flight 5 - . Nation: Germany. Agency: OTRAG. Summary: High acceleration test, 20 % propellant loading.

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 16 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 10 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 9 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 13 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 7 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 15 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 4 4x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 12 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 6 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 8 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 14 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 5 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 Q3? - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: OTRAG 11 1x15m.
  • Test mission - . Nation: Germany. Agency: OTRAG. Apogee: 50 km (31 mi).

1981 September 17 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 6 - . Nation: Germany. Agency: OTRAG. Summary: Engine induced roll moment test.

1981 October 1 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 7 - . Nation: Germany. Agency: OTRAG. Summary: Burn to depletion test.

1981 October 24 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 8 - . Nation: Germany. Agency: OTRAG. Summary: Oxidizer depletion first (rough).

1981 November 19 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 9 - . Nation: Germany. Agency: OTRAG. Summary: Fuel depletion first test (smooth).

1981 December 12 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 10 - . Nation: Germany. Agency: OTRAG. Summary: TV onboard camera test.

1982 June 2 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 11 - . Nation: Germany. Agency: OTRAG. Summary: Deep throttling test (1 ton thrust).

1982 June 24 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 12 - . Nation: Germany. Agency: OTRAG. Summary: Early cut-off and destruct.

1982 September 2 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 13 - . Nation: Germany. Agency: OTRAG. Summary: Roll control test (<1 N m).

1982 September 11 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 14 - . Nation: Germany. Agency: OTRAG. Summary: Stage separation simulation.

1982 November 10 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 15 - . Nation: Germany. Agency: OTRAG. Summary: 60 degree inclination launch.

1982 November 16 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 16 - . Nation: Germany. Agency: OTRAG. Summary: Alternative oxidizer (RFNA).

1982 December 9 - . Launch Site: Tawiwa. Launch Vehicle: Otrag. LV Configuration: 1 x 2.5 tonne thrust.
  • Otrag Flight 17 - . Nation: Germany. Agency: OTRAG. Summary: Alternative fuel (JP-4).

1983 September 19 - . 05:59 GMT - . Launch Site: Kiruna. Launch Vehicle: Otrag. LV Configuration: OTRAG DLR K-OL-120. FAILURE: Failure. Failed Stage: 1.
  • Otrag Flight 18 - . Nation: Germany. Agency: OTRAG; DLR. Apogee: 4.00 km (2.40 mi). Summary: 1-3-B 4x9m Test mission.

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