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 | ULA | Northrop Grumman |
| Country | 🇺🇸 USA | 🇺🇸 USA |
| Status | Retired | Retired |
| Vehicle class | Medium | Medium |
| Propellant | RP-1 / LOX (RD-180); LH₂ / LOX (Centaur III) | RP-1 / LOX (RD-181 first stage) |
| Reusable | No | No |
| Stages | 2 | 2 |
| First flight | 2002 – 2024 | 2013 – 2023 |
| Payload to LEO | 18,850 kgas of [1]401 configuration. Maximum 401/551 stretch to 20,520 kg. 551 max 29,420 kg (5-solid boosters). ↑ Best | 8,000 kgas of [1]Antares 230+ configuration; primarily used for ~3,500–3,800 kg Cygnus cargo |
| Payload to GTO | 8,900 kgas of [1]551 configuration (maximum performance) ↑ Best | — |
| Height | 58.3 mas of [1]401 configuration ↑ Best | 41 mas of [1] |
| Liftoff mass | 334 tas of [1]401 configuration without strap-ons ↑ Best | 298 tas of [1] |
| Success rate | 100%as of [2]99/99 mission successes from Aug 2002 through Apr 2024 (final Kuiper flight). Only launch vehicle with 100% success across 99 missions. ↑ Best | 91.7%as of [2]11/12 successes; Orb-3 (CRS-3) exploded at liftoff Oct 2014 |
| Total flights | 99as of [2]Retired after KA-01 (Amazon Kuiper satellite testbed, Apr 9, 2024) ↑ Best | 12as of [2]Final Antares flight was NG-19 (Aug 1, 2023). NG-20+ moved to Falcon 9 due to Antares RD-181 engine supply disruption (Russia sanctions). |
| Cost / kg LEO | — | — |
| Summary | ULA's workhorse from 2002–2024. Launched Mars Science Laboratory (Curiosity), OSIRIS-REx, Solar Orbiter, Lucy, New Horizons, and the Boeing Starliner. Its Russian RD-180 first-stage engine became a political liability after 2022; last flight was the Amazon Kuiper testbed on Apr 9, 2024. | Primary launch vehicle for Cygnus ISS cargo missions from 2013–2023. Its Ukrainian-built Zenit-derived first stage and Russian RD-181 engines became untenable after the 2022 invasion of Ukraine. Northrop switched NG-20 onward to Falcon 9 while Antares 330 (with Firefly Miranda engines) is in development. |
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.