The H3 Launch Vehicle is a two-stage launch vehicle developed by Japan Aerospace Exploration Agency (JAXA) and Mitsubishi Heavy Industries (MHI).
It's designed to be flexible, reliable, and cost-effective, serving as Japan's next-generation workhorse rocket for various space missions.
The H3 rocket comes in multiple configurations with different numbers of solid rocket boosters (SRBs) and fairing sizes, allowing it to accommodate a wide range of payload weights and orbits.
The H3 uses the LE-9 engine in its first stage, which features an expander bleed cycle for higher efficiency and thrust compared to previous engines.
The second stage is powered by an enhanced LE-5B engine.
JAXA aims to significantly reduce launch costs compared to its predecessor, the H-IIA rocket.
After two unsuccessful launch attempts in 2023, the H3 rocket finally achieved its first successful launch on February 17, 2024, carrying a dummy satellite and two microsatellites into orbit.
This successful launch marks a significant milestone for Japan's space program and paves the way for future missions using the H3 rocket.
COMMENTS