LE-5
Videos
The LE-5 liquid rocket engine and its derivative models were developed in Japan to meet the need for an upper stage propulsion system for the H-I and H-II series of launch vehicles. It is a cryogenic
LE-5
H3 (rocket)
Videos
The H3 is a Japanese medium-lift launch vehicle developed by JAXA and Mitsubishi Heavy Industries. A hydrolox-fuelled rocket, it is the successor to the H-IIA and H-IIB launch vehicles. The H3 uses th
LE-5
…injector plate with 306 smaller coaxial injectors (versus 180 in LE-5B). The upgrade reduced the vibrations produced by the upper stage by half. For the H3 launch vehicle, the LE-5B engine was updated to improve performance, lower costs, and ensure long-term parts availability while keeping development…
Launch of a H3 rocket carrying the QZS-6 satellite on 2 February 2025
Mitsubishi heavy industries building konan minato tokyo