Space · launch vehicle
H-I
MHI
RETIRED
At a glance
Launches
9
Success rate
100%
9 ok · 0 failed
Payload to LEO
3,200 kg
Payload to GTO
1,100 kg
Manufacturer
Mitsubishi Heavy IndustriesStatus
RetiredFirst flight
12 Aug 1986Reusable
NoHeight
42 mDiameter
2.44 mLaunch mass
142 tLiftoff thrust
—Stages
3Launch cost
—Booster landings
—Links
WikipediaAbout
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.
Source The Space Devs — Launch Library 2
Last checked 29 Sept 2026