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 | Relativity Space | ExPace (CASIC subsidiary) | JAXA / IHI Aerospace |
| Country | 🇺🇸 USA | 🇨🇳 China | 🇯🇵 Japan |
| Status | In Development | Active | Retired |
| Vehicle class | Heavy | Small | Small |
| Propellant | LOX / methane | Solid (3 stages) + liquid-fueled 4th stage | Solid (HTPB — all stages) |
| Reusable | Yes | No | No |
| Stages | 2 | 4 | 3 |
| First flight | 2026 | 2017 | 2013 – 2022 |
| Payload to LEO | 33,500 kg expendable / 23,500 kg with a reusable first stageas of [1]First flight targeted 2026 (stated plan, not yet confirmed flown as of this research). ↑ Best | 400 kgas of [1] | 590 kgas of [1]500 kg to SSO. Enhanced Epsilon (from E-4) added 700 kg LEO via PBS liquid kick stage. |
| Payload to GTO | — | — | — |
| Height | 87 mas of [1] ↑ Best | 19.4 mas of [1] | 26 mas of [1] |
| Liftoff mass | — | 30 tas of [1]Transporter-erector-launcher (TEL) capable — road-mobile solid launcher. | 96 tas of [1] ↑ Best |
| Success rate | — | ~85% (23 successes, 3 failures, 1 partial failure of 27)as of [1] ↑ Best | 83.3%as of [2]5/6 successes. E-6 (Oct 12, 2022) PBS upper stage failed to ignite, eight satellites lost. Epsilon S (next-generation) ground test anomaly Jan 2023 effectively ended the programme. |
| Total flights | — | 27as of [1] ↑ Best | 6as of [2] |
| Cost / kg LEO | ~$55M per launch (estimate)as of [1]Total launch price estimate, not a per-kg figure. ↓ Cheapest | — | — |
| Summary | Relativity Space's Falcon-9-class successor to Terran 1, partially 3D-printed, with 13 Aeon R methalox engines on a reusable first stage; second stage and fairing expendable. | CASIC's road-mobile, quick-response small solid launcher, operated commercially by ExPace since 2017 — one of the higher-cadence Chinese small-lift vehicles. | JAXA's small solid-fuel rocket derived from the M-V rocket heritage. Designed for highly autonomous operations — launch preparations could be managed by just 8 people. The sixth and final E-6 mission (Oct 2022) failed when the PBS kick stage didn't ignite; a ground explosion during Epsilon S testing (Jan 2023) ended the programme. |
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.