- Family: H-I
- Length: 42 m
- Diameter: 2.44 m
- Launch Mass: 142 T
- Low Earth Orbit Capacity: 3200 kg
The H-I was manufactured by Mitsubishi Heavy Industries with the first launch on 1986-08-12. H-I has 9 successful launches and 0 failed launches with a total of 9 launches. 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.
