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H3
Description
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 Tanegashima Space Center in Japan. Mitsubishi and JAXA are responsible for the design, manufacture, and operation of the H3. The H3 was designed with cheaper engines compared to the H-IIA, so that manufacturing the new launch vehicle would be faster, less risky, and more cost-effective. The versions of the H3 rocket range from 2 or 3 engines on the first stage, 0 to 4 side boosters on the first stage, and standard, long or wide fairing configuration, according to customer needs. You may see a configuration "H3" listed below, this is a placeholder configuration we use for unknown missions.
Missions
7
Success Rate
71.4%
Successes
5
Failures
2
Success Streak
0
Partial Failures
0
Next Up
H3-30 Test Flight
Previous
Michibiki 5
HTV-X 1
Configurations
H3-30S
Active Since 2026
Price
$50.00 million
Rocket
Diameter: 5.27m
Height: 63m
Payload to Orbit
LEO: 4,000 kg
GTO: 2,100 kg
Liftoff Thrust
4,413 Kilonewtons
Fairing
Diameter: 5.27m
Height: 10.4m
Stages
2
H3-24W
Active Since 2025
Price
$50.00 million
Rocket
Diameter: 5.27m
Height: 69m
Payload to Orbit
LEO: 16,000 kg
Liftoff Thrust
12,142 Kilonewtons
Fairing
Diameter: 5.4m
Height: 16.6m
Stages
2
Strap-ons
4
H3-24L
Active Since 2026
Price
$50.00 million
Rocket
Diameter: 5.27m
Height: 69m
Payload to Orbit
GTO: 6,500 kg
Liftoff Thrust
12,142 Kilonewtons
Fairing
Diameter: 5.27m
Height: 16.4m
Stages
2
Strap-ons
4
H3-22S
Active Since 2023
Price
$50.00 million
Rocket
Diameter: 5.27m
Height: 63m
Payload to Orbit
GTO: 4,000 kg
Liftoff Thrust
7,542 Kilonewtons
Fairing
Diameter: 5.27m
Height: 10.4m
Stages
2
Strap-ons
2
H3-22L
Active Since 2027
Price
$50.00 million
Rocket
Diameter: 5.27m
Height: 69m
Payload to Orbit
GTO: 4,000 kg
Liftoff Thrust
7,542 Kilonewtons
Fairing
Diameter: 5.27m
Height: 16.4m
Stages
2
Strap-ons
2
