Encyclopedia entry Kappa 9L-1 Stage · Japan Original archive entry. The text, images and links below are kept as they were written. Solid rocket stage. 110.00 kN (24,729 lbf) thrust. Mass 1,200 kg (2,646 lb). RelatedCountryJapanLaunch VehiclesKappa 7, Kappa 8, Kappa 9LPropellantsSolidAgencyISAS