N-I
The N-I or N-1 was a derivative of the American Thor-Delta rocket, produced under licence in Japan. It used a Thor-ELT first stage, a Mitsubishi Heavy Industries-designed LE-3 engine was used as a second stage, and three Castor SRMs. Seven were launched between 1975 and 1982, before it was replaced by the N-II.
- Height
- 34 m
- Diameter
- 2.44 m
- Stages
- 3
- Recorded launches
- 7
- First flight
- 1975-09-09
