N-I
Country of Origin: Japan/United States
Manufacturer: Mitsubishi Heavy Industries
Height: 34 m
Diameter: 2.44 m
Payload to LEO: 1200 kg
Total Mass: 131.33 tons
Launch Sites: Tanegashima
First Flight: September 9, 1975
Last Flight: September 3, 1982
Total Launches: 7
Successful Launches: 6
N-I
| Stage | Diameter | Fuel | Engine | Time | Thrust (Vac.) | ISP (SL / Vac.) | Mass / Empty Mass |
|---|---|---|---|---|---|---|---|
| Boosters (Castor 2) | 0.79 m | Solid | 3 x TX-354-3 | 37 s | 3 x 259 kN | ? / 262 s | |
| 1 (Thor-ELT) | 2.44 m | RP-1 / LOX | MB-3-3 | 270 s | 866.7 kN | ? / 290 s | |
| 2 | Aerozine / N2O4 | LE-3 | 246 s | 52.9 kN | ? / 290 s | ||
| 3 (Star-37N) (opt.) | Solid | 42 s | 45 kN | ? / 290 s |
Links: