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H-IIB Launch Vehicle

H-IIB was the higher-capacity two-stage derivative of H-IIA developed to launch the H-II Transfer Vehicle to the International Space Station. It used two LE-7A engines in a widened first stage and four SRB-A solid boosters, and flew nine successful missions from 2009 through 2020.

Identity

Aliases
H-IIBH-2B
Family Name
H-IIB
Full Name
H-IIB Launch Vehicle
Reusability
expendable
Slug
h-iib-launch-vehicle
Status
retired
Type
rocket

Details

Description
H-IIB was the higher-capacity two-stage derivative of H-IIA developed to launch the H-II Transfer Vehicle to the International Space Station. It used two LE-7A engines in a widened first stage and four SRB-A solid boosters, and flew nine successful missions from 2009 through 2020.
Diameter M
5.2
Engines
  • Count
    2
    Name
    LE-7A
    Placement
    core
  • Count
    4
    Name
    SRB-A
    Placement
    booster
  • Count
    1
    Name
    LE-5B-2
    Placement
    upper
First Flight Year
2,009
Height M
56.6
Last Flight Year
2,020
Liftoff Mass Kg
531,000
Manufacturer Id
jd78f0qx6y0pykq0j05qvmz7qn7kpnbp
Operator Id
jd78f0qx6y0pykq0j05qvmz7qn7kpnbp
Parent Vehicle Family Id
nd7jrtazwq037g6pf5wxg5prv18afrzt
Payload Capacity Kg
Leo
16,500
Stages Count
2
Strap On Boosters Count
4

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Creation Time
7/13/2026, 10:03:26 AM
Updated Time
7/13/2026, 10:03:26 AM