Orbital launch vehicle
H-1
The H-1 was a Japanese liquid-fuelled carrier rocket, consisting of a license-produced American First Stage and set of booster rockets and all-Japanese upper stages. It replaced the N-II and was subsequently replaced by the H-2 which has the same upper stages with a Japaense first stage.
Flights flown9
Success rate100%9/9
Payload to LEO3,200kg
Maiden flight1986-08-12
Peak year19882 flights
H-1 is built by Mitsubishi Heavy Industries of Japan. Company background, funding, contracts and news for this operator are tracked on Space Index. It first flew on 12 August 1986 and last flew on 11 February 1992.
Flight record
100% success rate9 of 9 flown
1986peak 1988 · 2 flights1992
First flight1986-08-12
Latest flight1992-02-11
Failures0
Consecutive successes9
Fastest turnaround154d 6h
Payload
| Low Earth orbit | 3,200kg |
|---|---|
| Geostationary transfer orbit | 1,100kg |
Vehicle
| Stages | 3 |
|---|---|
| Length | 42m |
| Diameter | 2.44m |
| Launch mass | 142t |
| Maiden flight | 1986-08-12 |
| Reusable | No |
Pads used
Orbits delivered
Geostationary Orbit6Low Earth Orbit2Sun-Synchronous Orbit1
Launch history
| Date | Mission | Pad | Orbit | Outcome |
|---|---|---|---|---|
| 1992-02-11 | H-1 | Fuyo 1 | Osaki Launch Complex | Sun-Synchronous Orbit | Success |
| 1991-08-25 | H-1 | Yuri 3B | Osaki Launch Complex | Geostationary Orbit | Success |
| 1990-08-28 | H-1 | Yuri 3A | Osaki Launch Complex | Geostationary Orbit | Success |
| 1990-02-07 | H-1 | Momo 1b | Osaki Launch Complex | Low Earth Orbit | Success |
| 1989-09-05 | H-1 | Himawari 4 | Osaki Launch Complex | Geostationary Orbit | Success |
| 1988-09-16 | H-1 | Sakura 3B | Osaki Launch Complex | Geostationary Orbit | Success |
| 1988-02-19 | H-1 | Sakura 3A | Osaki Launch Complex | Geostationary Orbit | Success |
| 1987-08-27 | H-1 | Kiku 5 | Osaki Launch Complex | Geostationary Orbit | Success |
| 1986-08-12 | H-1 | Ajisai | Osaki Launch Complex | Low Earth Orbit | Success |
Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.
Further reading: Wikipedia