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H-IIB 304

H-II familyMitsubishi Heavy IndustriesRetired

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.

H-IIB 304 vehicle

Specifications

Thrust
9,000 kN
Height
56.6 m
Diameter
5.2 m
Launch mass
551 t
Stages
2
Launch cost
$112.5M
LEO capacity
16,500 kg
GTO capacity
8,000 kg

Specifications from Launch Library. Figures the operator has not published are omitted.

Flight record

9flightswith a definitive outcome
100%success rate9 of 9
0failuresincluding partial failures
9success streakcurrent

First flight September 10, 2009 · latest May 20, 2020

Counted from padside's own launch record, the same basis as the stats page.

Flights per year

  • Successful
  • Failed
Show the numbers for H-IIB flights per year
H-IIB flights per year
YearSuccessfulFailedTotal
2009101
2010000
2011101
2012101
2013101
2014000
2015101
2016101
2017000
2018101
2019101
2020101

Flights

5 of 9

All 9 flights