Pick up to 4 launch vehicles to compare side-by-side. State lives in the URL — share the link and the comparison loads exactly as you left it.
The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | |||
|---|---|---|---|
| Company | JAXA / Mitsubishi Heavy Industries | SpaceX | Firefly Aerospace |
| Country | 🇯🇵 Japan | 🇺🇸 USA | 🇺🇸 USA |
| Status | Active | In Development | Active |
| Vehicle class | Heavy | Super Heavy | Small |
| Propellant | LH₂ / LOX (LE-9 first stage + LE-5B-3 second stage) | CH₄ / LOX | RP-1 / LOX |
| Reusable | No | Yes | No |
| Stages | 2 | 2 | 2 |
| First flight | 2024 | 2023 | 2021 |
| Payload to LEO | 16,500 kgas of [1]H3-24 (2 SRB-3 + 4 LE-9 engines) configuration. H3-30 baseline: 16,500 kg. | ~150,000 kgas of [1]SpaceX projected max payload in fully expendable mode; ~100,000 kg reusable ↑ Best | 1,030 kgas of [1]SSO capacity ~630 kg |
| Payload to GTO | 6,500 kgas of [1] | ~21,000 kgas of [1]Reusable configuration estimate ↑ Best | — |
| Height | 57 mas of [1] | 121 mas of [1]Version 2 (V2) full stack Ship + Super Heavy ↑ Best | 29 mas of [1] |
| Liftoff mass | 574 tas of [1]H3-24S configuration | ~5,000 tas of [1] ↑ Best | 54 tas of [1] |
| Success rate | 75%as of [2]~6/8 successes. TF1 (Feb 2023) first flight failure (LE-9 ignition issue, DAICHI-3 lost). F8 (Dec 23, 2025) QZS-5 lost to 2nd-stage relight anomaly. ↑ Best | ~55%as of [2]IFT-1 through IFT-11; ~6 complete mission successes, remainder partial or vehicle lost. No orbital payload deployment yet. | 43%as of [2]3/7 full successes (FLTA003 Jul 2023, FLTA005 Dec 2024, FLTA007 Mar 2026) + 2 partial successes + 2 failures through FLTA007 |
| Total flights | 8as of [2] | 11as of [2]IFT-1 (Apr 2023) through IFT-11 (May 2026 target). IFT-10 (Aug 2025) achieved full mission: booster caught + Ship splash-down. ↑ Best | 7as of [2] |
| Cost / kg LEO | ~$5,500/kgas of [1]Target unit price ¥5B (~$35M at ¥145/$); roughly half H-IIA's per-launch cost | ~$600/kgas of [1]SpaceX target figure; not yet achieved in operational configuration ↓ Cheapest | ~$14,500/kgas of [1]Based on ~$15M list price / 1,030 kg LEO |
| Summary | Japan's next-generation flagship rocket designed to halve H-IIA costs. Uses three LE-9 engines burning liquid hydrogen — the highest-performing expander-cycle engines in the world. First successful flight was TF2 (Feb 17, 2024). HTV-X1 cargo mission to ISS (Oct 2025) demonstrated operational readiness. | Largest and most powerful rocket ever flown. Super Heavy booster uses 33 Raptor engines. V3 Ship introduced Aug 2025. Mechazilla caught the booster on IFT-5 (Oct 2024) and IFT-10 (Aug 2025). Primary vehicle for Artemis HLS lunar landing (Artemis III planned 2026). | 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. |
28 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.