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Ariane is a series of European civilian expendable launch vehicles for space launch use. The name comes from the French spelling of the mythological character Ariadne. France first proposed the Ariane project and it was officially agreed upon at the end of 1973 after discussions between France, Germany and the UK. The project was Western Europe's second attempt at developing its own launcher following the unsuccessful Europa project. The Ariane project was code-named L3S (the French abbreviation for third-generation substitution launcher).

The European Space Agency (ESA) charged Aérospatiale (whose former assets now form Airbus) with the development of all Ariane launchers and of the testing facilities, while Arianespace handled production, operations and marketing after its creation in 1980. Arianespace launches Ariane rockets from the Guiana Space Centre at Kourou in French Guiana. As a result of the merger in 2000 that founded Airbus, the new corporation's space branch and subsequently its subsidiary with Safran, ArianeGroup, took over the duties of the defunct Aérospatiale.

Ariane versions

Ariane 1 was a three-stage launcher, derived from missile technology. The first two stages used hypergolic propellants and the third stage used cryogenic liquid hydrogen and liquid oxygen (LH2/LOX). Ariane 2–4 were enhancements of the basic vehicle. The major differences are improved versions of the engines, allowing stretched first- and third-stage tanks and greater payloads. The largest versions can launch two satellites, mounted in the SPELDA (Structure Porteuse Externe pour Lancements Doubles Ariane) adapter.

Such later versions are often seen with strap-on boosters. These layouts are designated by suffixes after the generation number. First is the total number of boosters, then letters designating liquid- or solid-fuelled stages. For example, an Ariane 42P is an Ariane 4 with two solid-fuel boosters. An Ariane 44LP has two solid, two liquid boosters, and a 44L has four liquid-fuel boosters.

Ariane 5 is a nearly complete redesign. The two hypergolic lower stages are replaced with a single LH2/LOX core stage. This simplifies the stack, along with the use of a single core engine (Vulcain). Because the core cannot lift its own weight, two solid-fuel boosters are strapped to the sides. The boosters can be recovered for examination, but are not reused. There are two versions of the upper stage, one hypergolic and restartable with a single Aestus engine and the other with a HM7B cryogenic engine burning LH2/LOX.

On 4 May 2007, an Ariane 5-ECA rocket set a new commercial payload record, lifting two satellites with a combined mass of 9.4 tonnes.

By January 2006, 169 Ariane flights had boosted 290 satellites, successfully placing 271 of them on orbit (223 main passengers and 48 auxiliary passengers) for a total mass of 575,000 kg successfully delivered on orbit. Attesting to the ubiquity of Ariane launch vehicles, France's Cerise satellite, which was orbited by an Ariane 4 in 1995, struck a discarded Ariane rocket stage in 1996. The incident marked the first verified case of a collision with a piece of catalogued space debris.

On February 16, 2011, the 200th Ariane rocket was launched, successfully carrying the Johannes Kepler ATV into low Earth orbit and providing International Space Station with supplies.

On November 26, 2019, flight number 250 was performed, lifting two communications satellites: TIBA-1 and Inmarsat-5 F5 (GX5).

On December 25, 2021, Ariane flight VA256 lifted NASA's James Webb Space Telescope towards Earth/Sun Lagrange point L2.

Ariane 5 flew its final mission on 5 July 2023.

See also

• List of Ariane launches
• Liquid fly-back booster
• Comparison of orbital launchers families
• Diamant
• Europa (rocket)
• Vega
• French space program
• European Space Agency
• Arianespace

References

1. Patureau de Mirand, Antoine (July 2019). Ariane Next, a vision for a reusable cost efficient European rocket (PDF). 8th European Conference for Aeronautics and Space Sciences. doi:10.13009/EUCASS2019-949. Retrieved 18 August 2021.
2. Aestus Rocket Engine Archived 2014-02-02 at the Wayback Machine Astrium (European Aeronautic Defence and Space Company)
3. European rocket powers to record BBC news
4. "SPACEWARN Bulletin Number 501". NASA. Archived from the original on 2009-08-14. Retrieved 2009-08-26.
5. "Space Junk". Newsweek. Archived from the original on 2009-10-08. Retrieved 2009-08-26.
6. "CO₂ prolongs life of 'space junk'". BBC News. May 5, 2005. Retrieved 2009-08-26.
7. Gebhardt, Chris (2011-02-15). "Ariane 5 launches ATV-2 for journey to the ISS". NASASpaceFlight.com. Retrieved 2019-12-24.
8. "Ariane's 250th mission is a success: TIBA-1 and Inmarsat GX5 are in orbit!". Arianespace. Retrieved 2019-12-24.
9. "Ariane 5 launches NASA's James Webb Space Telescope". 25 December 2021.
10. Svenson, Adam (2023-07-06). "Last Ariane 5 Mission Leaves Europe Without Launch Capacity". AIR SPACE News. Retrieved 2023-07-23.

External links

• European Space Agency
• Arianespace
• Downloadable paper models of various ESA spacecraft (Ariane at the bottom)

v t e Ariane (rocket family)
Rockets	Current Ariane 6 In development Ariane Next Retired Ariane 1 Ariane 2 Ariane 3 Ariane 4 Ariane 5
Launch sites	Guiana Space Centre (Kourou) ELA-1 ELA-2 ELA-3 ELA-4
Engines	Aestus HM7B P120C P160C Viking Vinci Vulcain
Launches	List of launches 1979–1989 1990–1999 2000–2009 2010–2019 2020–2029
Flights	VA240 VA241 VA242 VA244 VA243 VA245 VA246 VA247 VA248 VA253 VA254 VA255 VA256 VA262
Organizations	Manufacturing ArianeGroup Airbus Space Aérospatiale (merged) Safran Aircraft Engines Beyond Gravity MT Aerospace SABCA Nammo Launch provider Arianespace Related European Space Agency CNES
Related	Proposals SUSIE Cancelled Adeline Ariane 5 ME DC4EU Hermes Retired Automated Transfer Vehicle Europa
Category Multimedia

Media related to Ariane (rocket) at Wikimedia Commons

• Ariane (rocket family)
• Space program of France
• European Space Agency
• Rocket families