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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.

H-IIB Launch Vehicle
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Identity

Aliases
H-IIBH-2B
Family Name
H-IIB
Full Name
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.
Dimensions
Diameter
…
Height
…
First Flight Year
2,009
Last Flight Year
2,020
Manufacturer
Operator
Parent Vehicle Family
Propulsion Configurations
  • Entries
    • Count
      2
      Placement
      core
      Propulsion System
      Role
      main
    • Count
      4
      Placement
      booster
      Propulsion System
      Role
      booster
    • Count
      1
      Placement
      upper
      Propulsion System
      Role
      upper-stage
Rocket Specs
Liftoff Mass
…
Payload Capacity
LEO
…
Reusability
expendable
Stages Count
2
Strap On Boosters Count
4

Links

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Creation Time
July 13, 2026 at 10:03:26 UTC
Updated Time
July 29, 2026 at 15:38:20 UTC