World roster → Mitsubishi Heavy Industries / JAXA
H3-24
H3-24 is an orbital launch vehicle currently flying operated by Mitsubishi Heavy Industries / JAXA of Tokyo, Japan, 63 m tall, 15,000 kg to low Earth orbit, 2 stages.
| Operator | Mitsubishi Heavy Industries / JAXA · Tokyo, Japan |
|---|---|
| Status | Currently flying |
| First flight | 2023 |
| Height | 63 m |
| Diameter | 5.2 m |
| Liftoff mass | 574 t |
| Liftoff thrust | 9,683 kN |
| Stages | 2 |
| Payload to LEO | 15,000 kg |
| Payload to GTO | 7,900 kg |
| Engines | 2–3 × LE-9 · 0–4 SRB-3 · 1 × LE-5B-3 |
| Propellant | Liquid hydrogen / liquid oxygen |
| Reuse | Expendable — nothing is recovered |
| Launch sites | Tanegashima Space Center |
Configurations are written as H3-<core engines><boosters>. The LE-9 expander-bleed engine took years of turbopump cracking to sort out, and the vehicle has flown well since.
About Mitsubishi Heavy Industries / JAXA
Japan's launch industry: extremely reliable, historically expensive, and now trying to halve its own launch cost. Founded 1884. Official site.