Encyclopedia Astronautica
Kappa 4


Japanese sounding rocket. Two stage vehicle consisting of 1 x Kappa 4 Booster + 1 x Kappa 4

Height: 5.90 m (19.30 ft).
Diameter: 0.33 m (1.08 ft).
Thrust: 105.00 kN (23,604 lbf).
Apogee: 80 km (49 mi).
First Launch: 1957.09.20.
Last Launch: 1961.06.18.
Number: 3 .

More... - Chronology...


Associated Countries
See also
  • Kappa The Kappa series represented Japan's first large post-war indigenously-developed sounding rockets. They led eventually to the Lambda and Mu solid rocket satellite launchers. More...

Associated Manufacturers and Agencies
  • ISAS Japanese agency overseeing development of rockets, spacecraft, and rocket engines. Institute of Space and Astronautical Science, Japan. More...

Associated Launch Sites
  • Akita Sounding rocket launch site for Kappa series, known to have been used for 81 launches from 1956 to 1990. More...
  • Obachi Location used for release and launch of balloon-launched Kappa sounding rockets in 1961. More...

Associated Stages

Kappa 4 Chronology


1957 September 20 - . 10:03 GMT - . Launch Site: Akita. LV Family: Kappa. Launch Vehicle: Kappa 4. LV Configuration: Kappa 4 K-4-1.
  • Chemical release mission - . Nation: Japan. Agency: ISAS. Apogee: 40 km (24 mi).

1957 September 22 - . 10:00 GMT - . Launch Site: Akita. LV Family: Kappa. Launch Vehicle: Kappa 4. LV Configuration: Kappa 4 K-4-2.
  • Chemical release mission - . Nation: Japan. Agency: ISAS. Apogee: 40 km (24 mi).

1961 June 18 - . 04:35 GMT - . Launch Site: Obachi. LV Family: Kappa. Launch Vehicle: Kappa 4. LV Configuration: Kappa 4 K-4-2.
  • Sigma 4 Rockoon Chemical release mission - . Nation: Japan. Agency: ISAS. Apogee: 105 km (65 mi).

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