Encyclopedia Astronautica
Kappa 4 Booster


ISAS solid rocket engine. 105 kN.

Height: 3.30 m (10.80 ft).
Diameter: 0.33 m (1.08 ft).
Thrust: 105.00 kN (23,604 lbf).
Burn time: 3.00 s.

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

Associated Propellants
  • Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...

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