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 Airbus Defence and Space with the development of all Ariane launchers and of the testing facilities, while Arianespace, a commercial subsidiary created in 1980, handles production, operations and marketing. Arianespace launches Ariane rockets from the Guiana Space CentreatKourouinFrench Guiana.
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| Launch vehicle | Launches: successes / total | Variants | Payload to GTO | Payload to LEO | Height | Mass | Stages |
|---|---|---|---|---|---|---|---|
| Ariane 1 | 9 / 11 | - | 1,850 kg (4,080 lb) | - | 47.46 m (155.7 ft) | 211,500 kg (466,300 lb) |
3 |
| Ariane 2 | 5 / 6 | - | 2,180 kg (4,810 lb) | - | 49.13 m (161.2 ft) | 220,950 kg (487,110 lb) |
3 |
| Ariane 3 | 10 / 11 | - | 2,700 kg (6,000 lb) | - | 49.13 m (161.2 ft) | 234 t (258 short tons) |
3 |
| Ariane 4 | 113 / 116 | 40, 42P, 42L, 44P, 44LP, 44L | 2,000–4,300 kg (4,400–9,500 lb) |
5,000–7,600 kg (11,000–16,800 lb) |
58.72 m (192.7 ft) | 240–470 t (260–520 short tons) |
3 |
| Ariane 5 | 115 / 117 | G, G+, GS, ECA | 6,950–10,500 kg (15,320–23,150 lb) |
16,000–21,000 kg (35,000–46,000 lb) |
46–52 m (151–171 ft) | 720–780 t (790–860 short tons) |
2 |
| Ariane 6 | In development, due for launch in mid-2024[1] |
62, 64 | 5,000–10,500 kg (11,000–23,100 lb) |
7,000–20,000 kg (15,000–44,000 lb) |
~63 m (207 ft) | 500–900 t (550–990 short tons) |
2 |
| Ariane Next | In early development, due for launch from the 2030s[2] |
- | - | - | - | - | - |
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 [3] 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.[4]
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.[citation needed] Attesting to the ubiquity of Ariane launch vehicles, France's Cerise satellite, which was orbited by an Ariane 4 in 1995,[5] struck a discarded Ariane rocket stage in 1996.[6] The incident marked the first verified case of a collision with a piece of catalogued space debris.[7]
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.[8]
On November 26, 2019, flight number 250 was performed, lifting two communications satellites: TIBA-1 and Inmarsat-5 F5 (GX5).[9]
On December 25, 2021, Ariane flight VA256 lifted NASA's James Webb Space Telescope towards Earth/Sun Lagrange point L2.[10]
Ariane 5 flew its final mission on 5 July 2023.[11]
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European orbital launch systems
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Media related to Ariane (rocket) at Wikimedia Commons
