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H3-22

H3 familyMitsubishi Heavy IndustriesActive

Next flightH3-22 | ETS-9NET 2026

The H3 Launch Vehicle is a Japanese expendable launch system. Each H3 booster configuration has a two-digit and a letter designation that indicates the features of that configuration. The first digit represents the number of LE-9 engines on the main stage, either "2" or "3". The second digit indicates the number of SRB-3 solid rocket boosters attached to the base of the rocket, and can be "0", "2" or "4". All layouts of solid boosters are symmetrical. The letter in the end shows the length of the payload fairing, either short "S" or long "L". For example, an H3-24L has two engines, four solid rocket boosters, and a long fairing, whereas an H3-30S has three engines, no solid rocket boosters, and a short fairing.

H3-22 vehicle

Specifications

Thrust
7,542 kN
Height
63 m
Diameter
5.27 m
Launch mass
420 t
Stages
2
Launch cost
$50M
GTO capacity
5,400 kg

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

Flight record

7flightswith a definitive outcome
71.4%success rate5 of 7
1success streakcurrent

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

Flights

5 of 7

All 7 flights