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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 M
5.2
Height M
56.6
First Flight Year
2,009
Last Flight Year
2,020
Manufacturer
Operator
Parent Vehicle Family
Propulsion Configurations
  • Entries
    • Nested value
    • Nested value
    • Nested value
Rocket Specs
Liftoff Mass Kg
531,000
Payload Capacity Kg
Leo
16,500
Reusability
expendable
Stages Count
2
Strap On Boosters Count
4

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

Other

Search Name
H-IIB Launch Vehicle H-IIB H-2B