Dating ariane 5 0

Development of the Ariane 5 was not without controversy as some ESA members considered the more mature Ariane 4 to be more suited for meeting established needs for such launchers; it was for this reason that Britain chose not to participate in the Ariane 5 programme.For some years, Ariane 4 and Ariane 5 launchers were operated interchangeably; however, it was eventually decided to terminate all Ariane 4 operations in favour of concentrating on the newer Ariane 5.Six years later, in December 1979, the arrival of a capable European expendable launch system was marked when the first Ariane 1 launcher was successfully launched from the Guiana Space Centre at Kourou, French Guiana.

While the second and third stages remained identical to the Ariane 3, a range of strap-on boosters were developed to be applied to the type, designed to gradually increase the rocket's payload capacity.

Once in service, the launcher soon became recognised for being ideal for launching communications and Earth observation satellites, as well as those used for scientific research.

During its working life, the Ariane 4 managed to capture 50 per cent of the market in launching commercial satellites, soundly demonstrating Europe's ability to compete in the commercial launch sector.

The Ariane 4 was principally an evolution of the existing technologies used, as opposed to being revolutionary in its design ethos; this approach quickly gained the backing of most ESA members, who funded and participated in its development and operation.

Capable of being equipped with a wide variety of strap-on boosters, the Ariane 4 gained a reputation for being an extremely versatile launcher.

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