H3-30
JPN Official site 
Built & Operated By
Mitsubishi Heavy Industries
Commercial · founded 1884
Family
H3
variant 30
Maiden Flight
12 JUN 2026
About
The H3 Launch Vehicle is an expendable launch system in development in Japan. H3 rockets are liquid-propellant rockets with strap-on solid rocket boosters and are planned to be launched from the Tanegashima Space Center in Japan. Mitsubishi and the JAXA have been responsible for the design, manufacture, and operation of the H3.
Vehicle Specifications
Height
63 m
Diameter
5.27 m
Launch Mass
274 T
Thrust
4,413 kN
Stages
2
Configuration
Expendable
Launch Record
Total Launches
1
Successful
1
Failed
0
Consecutive
1
Performance
To GTO
2,300 kg
Launch Cost
$50.0M