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阿里安6尘埃落定  

2014-10-17 11:40:33|  分类: Space |  标签: |举报 |字号 订阅

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这次应该是真的确定下来了,最终出来的是什么呢,H-IIA!
没错,与其说是阿里安6,不如说是欧版H-IIA,难道以后叫她Europa-IIA么(E-IIA)

详情请看:Ariane 6
性能和指标:

Different concepts have been examined for Ariane 6 such as single- and dual-payloads, solid or cryogenic propulsion for the main stage, and the number of stages (three or more), all to cover a wide range of missions: 

  • GEO, either directly or through intermediate orbits, in particular GTO and LEO,
  • Polar/SSO,
  • MEO or MTO,
  • other.

The targeted payload performance of Ariane 6 is 4.5 t for polar/Sun-synchronous orbit missions at 800 km altitude and 3–10 t, with two main segments (3.5-5 t and 6–6.5 t) in GTO-equivalent.

The exploitation cost of the Ariane 6 launch system is its key driver. The first flight is targeted for 2020.


设计概念:

Ariane 6 is a modular three-stage launcher (solid–cryogenic–cryogenic) with two configurations using: four boosters (A64) or two boosters (A62).

This is based on:

  • A main stage containing liquid oxygen and hydrogen based on the Vulcain engine of Ariane 5 ECA and ME;
  • Two or four P120 solid rocket boosters, which will be common with Vega-C (an evolution of the current Vega launcher);
  • A cryogenic upper stage (LOX/LH2) propelled by a Vinci engine, based on the A5ME upper stage, with limited adaptations.

Ariane 6 in its A62 or A64 configuration is deemed the best possible long-term solution to maintain competences in Europe and deliver launch services against competitive costs.

Ariane 6 will have reignition capability and will be capable of performing a direct deorbiting and controlled reentry of the upper stage.

Flexibility is a design characteristic for A64 and A62. In essence it is the same launcher, responding to different market needs by varying the number of boosters in the configuration.

The A62, with two P120 solid boosters, will be used mainly in single-launch configurations, while the A64 – with four P120 solids – will enable double launch of medium-class satellites up to 4.5–5 t, mainly for commercial market needs.

The main characteristics of the Ariane 6 concept are:

  • The total length of the vehicle is around 63 m,
  • The loading of the cryogenic main stage is about 149 tonnes of propellants,
  • The external diameter of the cryogenic main stage is about 4.6 m.
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