Space · launch vehicle
H-IIB 304
MHI
RETIRED
At a glance
Launches
9
Success rate
100%
9 ok · 0 failed
Payload to LEO
16,500 kg
Payload to GTO
8,000 kg
Manufacturer
Mitsubishi Heavy IndustriesStatus
RetiredFirst flight
10 Sept 2009Reusable
NoHeight
56.6 mDiameter
5.2 mLaunch mass
551 tLiftoff thrust
9,000 kNStages
2Launch cost
$112,500,000Booster landings
—Links
WikipediaAbout
H-IIB (H2B) is an expendable launch system used to launch H-II Transfer Vehicles (HTV, or Kounotori) towards the International Space Station. H-IIB rockets are liquid-fuelled with solid-fuel strap-on boosters and are launched from the Tanegashima Space Center in Japan. Mitsubishi and JAXA have been primarily responsible for design, manufacture, and operation of H-IIB.
Source The Space Devs — Launch Library 2
Last checked 29 Sept 2026