N-I

From Spacefaring




The N-I or N-1 was a derivative of the American Thor-Delta rocket, produced under license in Japan. The N stood for "Nippon" (Japan). It used a Long Tank Thor first stage, a Mitsubishi Heavy Industries-designed LE-3 engine on the second stage, and three Castor SRMs. Seven were launched between 1975 and 1982, before it was replaced by the N-II. Six of the seven launches were successful, however on the fifth flight, there was recontact between the satellite and the third stage, which caused the satellite to fail.

Rocket-NambaRocket-Namba
Tanegashima Space CenterTanegashima Space Center
N-I-Rocket-ScaleModel-ISAS-CommHallN-I-Rocket-ScaleModel-ISAS-CommHall
Rockets of NASDAandJAXA scalemodels-atJAXATsukubaSpaceDome20250607Rockets of NASDAandJAXA scalemodels-atJAXATsukubaSpaceDome20250607
    TypeSubtypeDateDescriptionNotesSource
    commonsimageRocket-Namba Commons
    commonsimageTanegashima Space Center Commons
    commonsimageN-I-Rocket-ScaleModel-ISAS-CommHall Commons
    commonsimageRockets of NASDAandJAXA scalemodels-atJAXATsukubaSpaceDome20250607 Commons