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The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | |||
|---|---|---|---|
| Company | Space One | Firefly Aerospace | JAXA / Mitsubishi Heavy Industries |
| Country | 🇯🇵 Japan | 🇺🇸 USA | 🇯🇵 Japan |
| Status | In Development | Active | Active |
| Vehicle class | Small | Small | Heavy |
| Propellant | Solid | RP-1 / LOX | LH₂ / LOX (LE-9 first stage + LE-5B-3 second stage) |
| Reusable | No | No | No |
| Stages | 4 | 2 | 2 |
| First flight | 2024 | 2021 | 2023 |
| Payload to LEO | — | 1,030 kgas of [1]SSO capacity ~630 kg | 16,500 kgas of [1]H3-24 (2 SRB-3 + 4 LE-9 engines) configuration. H3-30 baseline: 16,500 kg. ↑ Best |
| Payload to GTO | — | — | 6,500 kgas of [1] ↑ Best |
| Height | — | 29 mas of [1] | 57 mas of [1] ↑ Best |
| Liftoff mass | — | 54 tas of [1] | 574 tas of [1]H3-24S configuration ↑ Best |
| Success rate | 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. | 43%as of [2]3/7 full successes (FLTA003 Jul 2023, FLTA005 Dec 2024, FLTA007 Mar 2026) + 2 partial successes + 2 failures through FLTA007 | 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. ↑ Best |
| Total flights | 3as of [1] | 7as of [2] | 9as of [3]Includes the H3-30 (three LE-9 engines, no SRBs) maiden flight on Jun 12, 2026 ↑ Best |
| Cost / kg LEO | — | ~$14,500/kgas of [1]Based on ~$15M list price / 1,030 kg LEO | ~$5,500/kgas of [1]Target unit price ¥5B (~$35M at ¥145/$); roughly half H-IIA's per-launch cost ↓ Cheapest |
| Summary | 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. | Firefly Aerospace's two-stage small-lift rocket powered by four Reaver engines at sea level and one Lightning engine in vacuum. Also provides launch services for NASA's CLPS programme (Blue Ghost lander launched on Falcon 9). FLTA007 'Stairway to Seven' succeeded Mar 11, 2026. | 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.