LE-9

Overview

A large LH2/LOX expander-bleed-cycle engine developed for the first stage of Japan's H3 rocket, chosen for reliability and lower cost.

Components & hardware

Knowledge connections

• PowersH3
• Uses propellantLH2 / LOX

Sources

The primary and reference sources this topic draws on.

• JAXAJapan Aerospace Exploration Agency

  Japanese missions (Hayabusa, Akatsuki) and space science.