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N-I Launch Vehicle

N-I was Japan's first operational launch vehicle for its applications-satellite program. The three-stage launcher used licensed U.S. Thor-Delta technology while building domestic systems experience for experimental, communications, meteorological, ionospheric, and engineering satellites; seven vehicles flew between 1975 and 1982.

N-I Launch Vehicle
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Identity

Aliases
N-1N IN-Iロケット
Family Name
N-I
Full Name
N-I Launch Vehicle
Status
retired
Type
rocket

Details

Description
N-I was Japan's first operational launch vehicle for its applications-satellite program. The three-stage launcher used licensed U.S. Thor-Delta technology while building domestic systems experience for experimental, communications, meteorological, ionospheric, and engineering satellites; seven vehicles flew between 1975 and 1982.
Dimensions
Diameter M
2.44
Height M
32.57
First Flight Year
1,975
Last Flight Year
1,982
Manufacturer
Rocket Specs
Liftoff Mass Kg
90,400
Reusability
expendable
Stages Count
3

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Creation Time
July 13, 2026 at 12:11:05 UTC
Updated Time
July 19, 2026 at 17:02:30 UTC

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Search Name
N-I Launch Vehicle N-1 N I N-Iロケット