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The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | |||
|---|---|---|---|
| Company | JAXA / Mitsubishi Heavy Industries | Firefly Aerospace / Northrop Grumman | Arianespace / ArianeGroup |
| Country | 🇯🇵 Japan | 🇺🇸 USA | 🇪🇺 Europe |
| Status | Active | In Development | Retired |
| Vehicle class | Heavy | Medium | Heavy |
| Propellant | LH₂ / LOX (LE-9 first stage + LE-5B-3 second stage) | RP-1 / LOX | LH₂ / LOX (Vulcain 2) + solid HTPB boosters |
| Reusable | No | Yes | No |
| Stages | 2 | 2 | 2 |
| First flight | 2023 | 2027 | 1996 – 2023 |
| Payload to LEO | 16,500 kgas of [1]H3-24 (2 SRB-3 + 4 LE-9 engines) configuration. H3-30 baseline: 16,500 kg. | 16,000+ kgas of [1]5 m fairing. Renamed from 'Medium Launch Vehicle' (MLV) to 'Eclipse' in May 2025 alongside the Northrop Grumman partnership. First stage (7 Miranda engines) designed for reuse from roughly the 6th flight onward; second stage uses one Vira engine. First flight targeted 2027 — stated plan, not yet flown. | 21,000 kgas of [1]Ariane 5 ECA configuration ↑ Best |
| Payload to GTO | 6,500 kgas of [1] | — | 10,865 kgas of [1]ECA configuration. Ariane 5 ES (ATV) variant: 21,000 kg LEO ↑ Best |
| Height | 57 mas of [1] ↑ Best | — | 54 mas of [1] |
| Liftoff mass | 574 tas of [1]H3-24S configuration | — | 777 tas of [1] ↑ Best |
| Success rate | 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. | — | 97.5%as of [2]113/117 successes. Failures: V501 (Jun 1996, first flight), V63 (Dec 2002, off-course but payload recovered). 2 partial successes. ↑ Best |
| Total flights | 9as of [3]Includes the H3-30 (three LE-9 engines, no SRBs) maiden flight on Jun 12, 2026 | — | 117as of [2]VA261 (Jul 5, 2023) was the final Ariane 5 flight. Launched the James Webb Space Telescope (Dec 2021). ↑ Best |
| 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 | 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. | A medium-lift successor to Firefly's Alpha, co-developed with Northrop Grumman, aimed at the national-security and commercial medium-lift gap between small launchers and heavy-lift vehicles. | Europe's dominant heavy-lift rocket for 27 years. Its most famous payload: the James Webb Space Telescope (Dec 25, 2021). Retired Jul 5, 2023 to make way for Ariane 6. Responsible for launching over 250 commercial and scientific payloads including XMM-Newton, Rosetta, and BepiColombo. |
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.