N-2
JPN Wikipedia 
Built & Operated By
Mitsubishi Heavy Industries
Commercial · founded 1884
Maiden Flight
11 FEB 1981
About
The N-II or N-2 was a derivative of the American Delta rocket, produced under licence in Japan. It replaced the N-I-rocket in Japanese use. It used a Thor-ELT first stage, a Delta-F second stage, nine Castor SRMs, and on most flights either a Star-37E or Burner-2 upper stage, identical to the US Delta 0100 series configurations. Eight were launched between 1981 and 1987, before it was replaced by the H-I, which featured Japanese-produced upper stages. All eight launches were successful.
Vehicle Specifications
Height
35 m
Diameter
2.44 m
Launch Mass
132 T
Thrust
2,278 kN
Stages
2–3
Configuration
Expendable
Launch Record
Total Launches
8
Successful
8
Failed
0
Consecutive
8
Performance
To LEO
2,000 kg
To GTO
730 kg