H-I
· built by Mitsubishi Heavy Industries
· maiden flight 1986-08-12
Profile data last updated: 2026-08-29T15:37:07.354998+00:00 | 7531-10-17
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.
Specifications
42.0 mLength
2.44 mDiameter
142 tLaunch mass
2–3Stages
Payload Capacity
3200 kgTo LEO
1100 kgTo GTO
Lifetime Launch Record
As reported by Launch Library 2 across this rocket's entire history, not just the launches tracked on this site.
9Total launches
9Successful
0Failed
0Upcoming
Launches Tracked on This Site
9In our archive
100.0%Success rate
Aug 12, 1986 20:45 UTCEarliest tracked
Feb 11, 1992 01:50 UTCMost recent
| Mission | Date | Status |
|---|---|---|
| H-1 | Fuyo 1 | Feb 11, 1992 01:50 UTC | Success |
| H-1 | Yuri 3B | Aug 25, 1991 08:40 UTC | Success |
| H-1 | Yuri 3A | Aug 28, 1990 09:05 UTC | Success |
| H-1 | Momo 1b | Feb 07, 1990 01:33 UTC | Success |
| H-1 | Himawari 4 | Sep 05, 1989 19:11 UTC | Success |
| H-1 | Sakura 3B | Sep 16, 1988 09:59 UTC | Success |
| H-1 | Sakura 3A | Feb 19, 1988 10:05 UTC | Success |
| H-1 | Kiku 5 | Aug 27, 1987 09:20 UTC | Success |
| H-1 | Ajisai | Aug 12, 1986 20:45 UTC | Success |