Ariane is a series of European civilianexpendable launch vehicles for space launch use. The name comes from the French spelling of the mythological characterAriadne. France first proposed theAriane 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 unsuccessfulEuropa project. The Ariane project was code-namedL3S (the French abbreviation for third-generation substitution launcher).
TheEuropean Space Agency (ESA) chargedAérospatiale (whose former assets now formAirbus) with the development of all Ariane launchers and of the testing facilities, whileArianespace handled production, operations and marketing after its creation in 1980. Arianespace launches Arianerockets from theGuiana Space Centre atKourou inFrench Guiana. As a result of the merger in 2000 that founded Airbus, the new corporation'sspace branch and subsequently its subsidiary withSafran,ArianeGroup, took over the duties of the defunct Aérospatiale.
| Version | Launches: successes / total | Variants | Payload toGTO | Payload toLEO | Height | Mass | Stages |
|---|---|---|---|---|---|---|---|
| Ariane 1 | 9 / 11 | — | 1,850 kg (4,080 lb) | — | 47.46 m (155.7 ft) | 211.5 t (466,000 lb) | 3 |
| Ariane 2 | 5 / 6 | — | 2,180 kg (4,810 lb) | — | 49.13 m (161.2 ft) | 221 t (487,000 lb) | 3 |
| Ariane 3 | 10 / 11 | — | 2,700 kg (6,000 lb) | — | 49.13 m (161.2 ft) | 234 t (516,000 lb) | 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 (530,000–1,040,000 lb) | 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 (1,590,000–1,720,000 lb) | 2 |
| Ariane 6 | 2 / 3 | 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 (1,100,000–2,000,000 lb) | 2 |
Ariane 1 was a three-stage launcher, derived frommissile technology. The first two stages usedhypergolic propellants and the third stage usedcryogenicliquid hydrogen andliquid oxygen (LH2/LOX). Ariane 2–4 were enhancements of the basic vehicle. The major differences are improved versions of theengines, allowing stretched first- and third-stage tanks and greater payloads. The largest versions can launch twosatellites, mounted in theSPELDA (Structure Porteuse Externe pour Lancements Doubles Ariane) adapter.
Such later versions are often seen with strap-onboosters. These layouts are designated by suffixes after the generation number. First is the total number of boosters, then letters designatingliquid- orsolid-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 singleAestus engine[1] and the other with aHM7B 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.[2]
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'sCerise satellite, which was orbited by an Ariane 4 in 1995,[3] struck a discarded Ariane rocket stage in 1996.[4] The incident marked the first verified case of a collision with a piece of cataloguedspace debris.[5]
On February 16, 2011, the 200th Ariane rocket was launched, successfully carrying theJohannes Kepler ATV intolow Earth orbit and providingInternational Space Station with supplies.[6]
On November 26, 2019, flight number 250 was performed, lifting twocommunications satellites:TIBA-1 andInmarsat-5 F5 (GX5).[7]
On December 25, 2021,Ariane flight VA256 lifted NASA'sJames Webb Space Telescope towards Earth/SunLagrange point L2.[8]
Ariane 5 flew its final mission on 5 July 2023.[9]
Ariane Next is In early development, due for launch from the 2030s.[10]
Media related toAriane (rocket) at Wikimedia Commons
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