H-I Vehicle Overview
A complete overview of the H-I launch vehicle, including launch stats, vehicle info and launch locations.
Basic Info
Name
H-I
Family
H-I
Manufacturer
First Launch
12 Aug 1986
Successful Launches
9
Failed Launches
0
Rocket Info
Status
Inactive
Stages
2-3
Length
42 m
Diameter
2.44 m
Launch Mass
142 tons
Reusability
Not Reusable
Payload Info
LEO Capacity
3,200 kg
GTO Capacity
1,100 kg
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.
Launch Sites used by H-I
Tanegashima Space Center
Japan's largest rocket-launch complex, featuring cutting-edge facilities and a comprehensive space museum.
📍 Japan
🚀 92 Launches