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Launch Vehicle
The H-1 was a Japanese liquid-fuelled carrier rocket, consisting of a license-produced American First Stage and set of booster rockets and all-Japanese upper stages. It replaced the N-II and was subsequently replaced by the H-2 which has the same upper stages with a Japaense first stage.

H-I is the launch vehicle record for catalog id 319.
The H-1 was a Japanese liquid-fuelled carrier rocket, consisting of a license-produced American First Stage and set of booster rockets and all-Japanese upper stages. It replaced the N-II and was subsequently replaced by the H-2 which has the same upper stages with a Japaense first stage.
This record currently resolves 9 launches (0 upcoming, 9 recent) for schedule and history context.
No upcoming launches found.
This record is built from the Launch Library 2 public catalog cache. The page keeps provider, pad, vehicle, astronaut, event, and location records separate from launch detail pages so source-backed facts stay easy to audit.
H-I is a catalog record with launch relationships. Use this page for entity context and linked launches for mission-specific timing, vehicle, and status details.
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Data provided by The Space Devs - Launch Library 2.