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LE-7
The original high-thrust staged-combustion first-stage engine developed for H-II.
Identity
Domains
spaceflight
Identity Level
model
Kind
liquid-rocket-engine
Name
LE-7
Status
retired
Details
Description
The original high-thrust staged-combustion first-stage engine developed for H-II.
Family
Family
Propellants
liquid hydrogen
liquid oxygen
Rocket Specs
Cycle
staged-combustion
Vacuum Thrust Kn
1,079
Links
Official Url
https://global.jaxa.jp/projects/rockets/h2/
Assets & Meta
Creation Time
July 29, 2026 at 08:49:22 UTC
Updated Time
July 29, 2026 at 08:51:05 UTC
Other
Sources
Accessed Date
2026-07-29
Note
Supports the legacy vehicle installation and the narrow canonical identity used for migration.
Publisher
Official vehicle or program source
Title
H-II Launch Vehicle official vehicle reference
Url
https://global.jaxa.jp/projects/rockets/h2/
Accessed Date
2026-07-29
Publisher
Japan Aerospace Exploration Agency
Title
LE-7A
Url
https://www.rocket.jaxa.jp/rocket/engine/le7/
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