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The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | |||
|---|---|---|---|
| Company | United Launch Alliance | Space One | JAXA / Mitsubishi Heavy Industries |
| Country | 🇺🇸 USA | 🇯🇵 Japan | 🇯🇵 Japan |
| Status | Retired | In Development | Active |
| Vehicle class | Heavy | Small | Heavy |
| Propellant | LH2 / LOX | Solid | LH₂ / LOX (LE-9 first stage + LE-5B-3 second stage) |
| Reusable | No | No | No |
| Stages | 2 | 4 | 2 |
| First flight | 2004 – 2024 | 2024 | 2023 |
| Payload to LEO | 28,370 kgas of [1] ↑ Best | — | 16,500 kgas of [1]H3-24 (2 SRB-3 + 4 LE-9 engines) configuration. H3-30 baseline: 16,500 kg. |
| Payload to GTO | — | — | 6,500 kgas of [1] ↑ Best |
| Height | 70.7 mas of [1] ↑ Best | — | 57 mas of [1] |
| Liftoff mass | 733 tas of [1] ↑ Best | — | 574 tas of [1]H3-24S configuration |
| Success rate | 93.75% (15/16 full success, 1 partial failure)as of [1] ↑ Best | 0/3 — three consecutive failuresas of [1]2024-03-13: disintegrated shortly after liftoff. 2024-12-18: began tumbling during 1st-stage burn, flight terminated. 2026-03-04: flight termination activated ~70 seconds after liftoff. All three launches flew from Spaceport Kii, Wakayama — Japan's first private-sector spaceport. Program grounded as of this research; precise payload/height/mass specs not confirmed from a primary source. | 78%as of [2]~7/9 successes. TF1 (Mar 7, 2023) first flight failure (2nd-stage ignition, DAICHI-3 lost). F8 (Dec 23, 2025) QZS-5 lost to 2nd-stage relight anomaly. H3-30 maiden flight (Jun 12, 2026) successful. |
| Total flights | 16as of [1] ↑ Best | 3as of [1] | 9as of [3]Includes the H3-30 (three LE-9 engines, no SRBs) maiden flight on Jun 12, 2026 |
| Cost / kg LEO | — | — | ~$5,500/kgas of [1]Target unit price ¥5B (~$35M at ¥145/$); roughly half H-IIA's per-launch cost ↓ Cheapest |
| Summary | ULA's triple-common-booster-core heavy-lift launcher, retired 2024-04-09 after its final flight; superseded by Vulcan Centaur, which ULA states offers similar heavy-lift capability at lower cost. | A Japanese commercial solid-fuel small launcher that has failed on all three flight attempts through March 2026, putting its commercial viability in serious question. | Japan's next-generation flagship rocket designed to halve H-IIA costs. Uses LE-9 engines burning liquid hydrogen — the highest-performing expander-cycle engines in the world. First flight TF1 (Mar 7, 2023) failed; first success was TF2 (Feb 17, 2024). HTV-X1 cargo mission to ISS (Oct 2025) demonstrated operational readiness, and the solid-booster-free H3-30 variant debuted Jun 12, 2026. |
48 launch vehicles across 10 countries — active, retired, and in development — with primary-source citations from manufacturer user guides and agency press kits. Pure URL state: bookmark or share the link and the comparison reproduces exactly.