Ариана-5 лучшая тяжелая РН?

[frigate]

dmdimon пишет:
ну я и написал - ненадежное программирование    Есть такое мнение, что для этого типа ошибок тесткейсы должны генерироваться вообще автоматически...
Опять-же по факту выходит, что "новый" вариант софта вообще не проходил симуляцию запуска... Вылетели-то штатные значения...

АФАИК переход с 16-битной библиотеки на 32-битную. :idea:

[Mark]

Интересное видео и много информации про созданию и продукции Ариане-5 носителя.
 

[Mark]

Франция предоставит 25 миллионов евро в реконструкцию ракеты Ариан-5. Речь идёт о увелчения обтекателя на 2 метров для ПН. Над созданием носители работают во Франции и Европе более чем 10 000 сотрудников. 04.09.2013.

France's Investment Program for the Future allocates €25 million for Ariane 5 upgrade
 
Following the first meeting of the joint government-industry committee on space, the French Minister of Higher Education and Research announced that the government was allocating 25 million euros to an upgrade of the Ariane 5 launcher, within the scope of France's Investment Program for the Future (Programme d'Investissements d'Avenir, or PIA).
The upgrade will increase the available volume under the fairing, adding up to 2 meters in payload height for Arianespace's launch customers, without carrying a performance penalty. This upgrade, scheduled for implementation in 2015, is designed to address the current trend in geostationary telecommunications satellites, which are gradually becoming larger as their power and complexity both increase.
Arianespace Chairman and CEO Stéphane Israël gave the following statement following the announcement: "I would like to thank the French government and the Minister of Higher Education and Research, Geneviève Fioraso, for deciding to allocate part of the funds available through the PIA program to finance this upgrade to our Ariane 5 ECA launcher. Through this upgrade, whose cost has been kept to a minimum, Arianespace will be able to keep pace with market requirements and continue to meet our customers' expectations. There is a tremendous amount at stake for the launcher industry, which counts over 10,000 employees in France and in Europe. I would also like to thank ESA and CNES for immediately supporting this program, for which Arianespace recently expressed a need. And I would also like to emphasize the commitment of the European space industry, in particular our prime Astrium and Ruag, the fairing supplier, to deliver this upgrade in 2015, while keeping costs under control. Ariane 5 ECA is already the most reliable launcher on the market, and this upgrade will also increase its competitiveness in the near future."

http://www.arianespace.com/news-press-release/2013/9-4-2013.asp

[Дмитрий В.]

Mark пишет:
 Франция предоставит 25 миллионов евро в реконструкцию ракеты Ариан-5. Речь идёт об увеличении обтекателя на 2 метров для ПН. Над созданием носители работают во Франции и Европе более чем 10 000 сотрудников .

Они его растягивают, что ли?!  ( )

[Mark]

Дмитрий В. пишет:

Mark пишет:
Франция предоставит 25 миллионов евро в реконструкцию ракеты Ариан-5. Речь идёт об увеличении обтекателя на 2 метров для ПН. Над созданием носители работают во Франции и Европе более чем 10 000 сотрудников .

Они его растягивают, что ли?!    ( )

Да, через длинный обтекатель будет  большая объема перевозок тяжелых ПН,  в частности для геостационарных спутников    

[asmi]

Mark пишет:
Да, через длинный обтекатель будет большая объема перевозок тяжелых ПН, в частности для геостационарных спутников

Вы не так поняли вопрос - он имел в виду, они что, всей этой толпой народа вручную (в смысле руками) будут обтекатель растягивать?

[Mark]

asmi пишет:

Mark пишет:
Да, через длинный обтекатель будет большая объема перевозок тяжелых ПН, в частности для геостационарных спутников

Вы не так поняли вопрос - он имел в виду, они что, всей этой толпой народа вручную (в смысле руками) будут обтекатель растягивать?

Да, теперь понял. Вопрос был очень просты, ссоры  :!:
 
Руками обтекатель растягивать будет тяжело. А если короны експерта Дмитрий В. нам (ЕКА) поможе как 10001 сотрудник, будет може совсем другая справа. Бы получил сразу месячный доход на 5000 Евро    

[Salo]

http://www.spacenews.com/article/launch-report/37093while-satellite-operators-await-a-spacex-debut-arianespace-walks-away

While Satellite Operators Await a SpaceX Debut, Arianespace Walks Away with Recent Awards
Sep. 6, 2013


Arianespace Chief Executive Stephane Israel said after the last Ariane 5 launch that the company has booked around 300 million euros in new orders in recent weeks, bringing this year's total contract volume to 1 billion euros. Credit: French government photo

PARIS — The biggest development in the commercial satellite launch market in the coming months is likely to be the success — or failure — of the new Falcon 9 v1.1 rocket operated by Space Exploration Technologies Corp. (SpaceX). But Europe's Arianespace launch consortium appears to have quietly walked away with most of the recent contract awards.
Officials from Evry, France-based Arianespace have declined to comment beyond saying they have been successful of late. The company said it would be making several announcements the week of Sept. 9 during the World Satellite Business Week conference organized by Euroconsult.
Arianespace Chief Executive Stephane Israel said Aug. 29 after the last Ariane 5 launch that the company has booked around 300 million euros ($400 million) in new orders in recent weeks, bringing this year's total contract volume to 1 billion euros.
Industry officials said the contracts are for government missions in Brazil and Japan, and commercial operators in Brazil, the United States, Mexico and Spain.
Hawthorne, Calif.-based SpaceX has tentatively set the inaugural flight of its new Falcon 9 for mid-September, a launch that will place Canada's Cassiope scientific spacecraft into low Earth orbit.
Despite the low-orbit destination, a successful flight will trigger SpaceX's entry into the commercial launch market for geostationary-orbiting telecommunications satellites, which make up most of SpaceX's commercial backlog of more than  $1 billion.
The world's second-largest commercial satellite fleet operator, SES of Luxembourg, has stuck with SpaceX and its low price despite multiple launcher-caused delays for the SES-8 telecommunications spacecraft. SES has agreed to launch SES-8 on Falcon 9's first geostationary-orbit mission, a sign of the confidence that SES's technical team has in the vehicle.
Taking advantage of a large amount of cash available for satellite insurance among the underwriters active in this niche, purchasers of SpaceX commercial launches have been able to secure insurance rates that are relatively low for a vehicle that has never flown to geostationary orbit, industry officials said.
A successful launch of SES-8 would send a strong signal to the commercial market that SpaceX is beginning to deliver on its promise to offer launches for up to 50 percent less than Arianespace and International Launch Services (ILS) of Reston, Va., which markets Russia's Proton rocket.
Arianespace meanwhile has signed, or is about to sign, contracts for as many as six geostationary-orbiting telecommunications satellites for government and commercial customers, industry officials said.
The contracts include an X-band telecommunications satellite for Japan's DSN consortium, whose members include commercial satellite operator Sky Perfect JSat Corp. in addition to NEC and NTT. The consortium is building two military satellites, using a Mitsubishi Electric satellite bus, for the Japanese government as part of a private finance initiative. The DSN consortium pays for the satellites' construction, launch and operations and the government pays an annual user fee. The Arianespace contract concerns the first of these two satellites, DSN-1.
A second contract is with Sky Mexico, owned by satellite-television provider DirecTV Group of Los Angeles, for a satellite being built by Orbital Sciences Corp. of Dulles, Va. Orbital is expected to build a second Sky Mexico satellite as part of the same contract, but industry officials this has been delayed while the orbital frequency rights are negotiated.
Three additional contracts are for orbital slots over Brazil, but for three different customers.
The Brazilian government's Geostationary Defense and Strategic Communications Satellite, or SGDC, being built by Thales Alenia Space of France and Italy, is all but certain to be contracted for launch aboard an Ariane 5 rocket, industry officials said. They added that no contract has yet been signed.
Brazil's domestic commercial satellite fleet operator, Star One, has contracted with Arianespace for the launch of its next satellite, originally named Star One C5, under construction by Space Systems Loral (SSL) of Palo Alto, Calif.
Hispasat of Spain will use Ariane 5 for the launch of the Amazonas 4B spacecraft, under construction by Orbital Sciences. The satellite continues Hispasat's buildup of capacity in Latin America, which recently has been one of the fastest-growing regions in terms of satellite bandwidth demand.
Arianespace is also expected to announce that it will launch the Intelsat IS-34 satellite for Intelsat of Luxembourg and Washington. This spacecraft, under construction by SSL, will replace the IS-27 lost during a failure of a Sea Launch AG rocket early this year, but without the military UHF-band payload on board IS-27.
IS-34 will be a relatively small version of Space Systems/Loral's 1300 satellite frame and is expected to weigh less than 4,000 kilograms at launch.
The trick in building Arianespace's manifest — and one reason the company wants the next-generation Ariane 6 vehicle to launch satellites one at a time — is to find pairings that fill the Ariane 5 capacity in matching smaller and larger spacecraft.
On the heavier side of the equation, Arianespace faces competition from ILS and from Sea Launch of Bern, Switzerland. On the lighter-weight side, the competition recently has been from SpaceX.

[Salo]

http://www.arianespace.com/news-press-release/2013/9-18-2013-Astrium.asp

Arianespace and Astrium sign an agreement to begin production of 18 additional Ariane 5 ECA launchers
Paris, September 18, 2013

Arianespace and Astrium signed an initial agreement on 17 September to begin the production of 18 additional Ariane 5 ECA launchers.

As part of this agreement, Arianespace has ordered from Astrium, long-lead items and the start of production activities for the 18 additional launchers. These items and the first production activities are valued at more than 400 million euros. Astrium and Arianespace plan to sign the full production contract for the additional launchers before the end of 2013.

These additional 18 Ariane 5s should be launched from 2017 onwards, following on from the 35 launchers ordered in 2009 (PB batch).

Present at the signing were Stéphane Israël, Arianespace Chairman and CEO and Alain Charmeau, CEO of Astrium Space Transportation.

This order takes the number of Ariane 5 launchers in production for Arianespace to 38, and guarantees the continued provision of launch services for the European operator's customers at the Guiana Space Centre through to the end of the decade.

Stéphane Israël said: "Ariane 5 is the most reliable launcher in the world. We need to secure the future production for our customers, beyond the 20 launchers currently being built, which is why we are ordering long-lead items for a further batch of 18 launchers. My thanks to Astrium and the European space industry for this exceptional launcher. My thanks also to the shareholders of Arianespace, and in particular to the French Space Agency CNES, for this vote of confidence in the future."

"This agreement enables Astrium, which has been prime contractor for Ariane 5 since 2003, to ensure the continuity of production beyond 2017," explained Alain Charmeau, CEO of Astrium Space Transportation. "It also guarantees the continuity of the entire industrial production chain which comprises 550 companies (of which 20% are SMEs) and 6,000 people across 12 European countries."

Arianespace is the world leader in its sector and its order book represents more than three years of work, which represents 4 billion euros in value.

Astrium, the number one company in Europe for space technologies and the second in the world, is the sole prime contractor of Ariane 5 and provides Arianespace with complete launchers that are tested and integrated at the Guiana Space Centre. Astrium also manages all the contracts of the industrial partners in the Ariane programme's 12 partner countries.

About Arianespace

Arianespace is the world's leading satellite launch company, delivering innovation to its customers since 1980. Backed by 21 shareholders and the European Space Agency, the company offers an international workforce renowned for a culture of commitment and excellence. As of September 18, 2013, Arianespace had carried out a total of 215 Ariane launches, 31 Soyuz launches (five at the Guiana Space Center and 26 at Baikonur via Starsem) and two Vega launches. Arianespace has a backlog of 19 Ariane 5, 10 Soyuz and four Vega launches, equaling three years of business.

About Astrium

Astrium is the number one company in Europe for space technologies and the second in the world. It is the only global company that covers the full range of civil and defence space systems, equipment and services.

In 2012, Astrium had a turnover over €5.8 billion and 18,000 employees worldwide.

Its three business units are: Astrium Space Transportation, the European prime contractor for launchers, orbital systems and space exploration; Astrium Satellites, a leading provider of satellite system solutions, including spacecraft, ground segments, payloads and equipments; Astrium Services, the Space services partner for critical missions, providing comprehensive fixed and mobile solutions covering secure and commercial satcoms and networks, and bespoke geo-information services, worldwide.

Astrium is a wholly owned subsidiary of EADS, a global leader in aerospace, defence and related services. In 2012, the Group – comprising Airbus, Astrium, Cassidian and Eurocopter – generated revenues of €56.5 billion and employed a workforce of over 140,000.

[Salo]

http://www.spacenews.com/article/launch-report/38331spacex-challenge-has-arianespace-rethinking-pricing-policies

SpaceX Challenge Has Arianespace Rethinking Pricing Policies
By Peter B. de Selding | Nov. 25, 2013

"I have sent a signal to our customers telling them that I could review our pricing policy, within certain limits," Arianespace Chief Executive Stephane Israel said. Credit: French government photo
 
PARIS — The Arianespace commercial launch consortium is telling its customers it is open to reducing the cost of flights for lighter satellites on the Ariane 5 rocket in response to the challenge posed by SpaceX's Falcon 9 rocket, Arianespace Chief Executive Stephane Israel said Nov. 25.
"I have sent a signal to our customers telling them that I could review our pricing policy, within certain limits," Israel said in an interview with Les Echos, a French financial newspaper. "I think they have appreciated this."
Israel's comments came on the day when Space Exploration Technologies Corp. (SpaceX), after a decade of rattling Arianespace's cage, is preparing its first-ever launch into the geostationary transfer orbit used by most commercial telecommunications satellites, and the place where most commercial revenue is made.
SpaceX Chairman Elon Musk taunted Arianespace again on Nov. 24, the day before his company's scheduled launch of the SES-8 satellite owned by SES of Luxembourg.
"Unless the other rocket makers improve their technology rapidly, they will lose significant market share to the Falcon 9," Musk said in a news briefing.
SpaceX President Gwynne Shotwell added: "Competition is always a good thing. It keeps people sharp. They [Arianespace and other competitors] may not look at it that way, but hopefully they'll come to appreciate it in the future."
Israel said Evry, France-based Arianespace, which has a more than 50 percent share of today's global commercial launch market, is less worried about its position in the market for the heavier satellites it launches on each Ariane 5 because of the recent failures of Russia's Proton rocket. Proton is Arianespace's principal competitor for launching satellites weighing more than 5,000 kilograms.
The heavy-lift Ariane 5's business model requires that it routinely launch two satellites at a time into geostationary transfer orbit. The heavier satellite is in top position. For these satellites Arianespace competes not only with Proton but also with the Russian-Ukrainian Sea Launch vehicle for customers.
But for each heavy satellite, Arianespace must find a lighter spacecraft to occupy the lower position on the Ariane 5 rocket. Up to now, the competition in this sector of the market has been less intense, as both Proton and Sea Launch typically launch one satellite at a time and are focused on the larger spacecraft.
But with the arrival of Hawthorne, Calif.-based SpaceX on the scene, Arianespace now has a direct competitor for those lighter satellites.
SES, which operates a fleet of 50-plus satellites, contracts for three or four launches per year, usually with Arianespace. But SES has given unbridled praise to SpaceX and its prices, which are substantially lower than what Arianespace charges, and has booked three more flight options with SpaceX after the SES-8 launch.
The size of the global commercial geostationary satellite launch market is no more than 20-25 satellites per year. The long-term loss of SES as a customer, even if only for the lighter satellites, would have serious consequences for Arianespace, the company that, in the early 1980s, all but invented the commercial launch business.
"I am looking at our pricing policy and if we must adapt it to the competition, we will," Israel said. "We'll look at the overall efficiency of the Ariane business with a view to optimizing it."
Israel said there are more small telecommunications satellites being designed now than ever, a fact he attributed in part to the arrival of SpaceX, which has stimulated the market. 
For heavier satellites, Israel said the recent failures of Proton rockets have driven customers to Arianespace.
Arianespace in the past has worked to develop a policy of pricing launches on a per-kilogram basis. Israel's statements suggest the company is willing to de-couple the policy for lighter satellites from that used for heavier spacecraft to meet the SpaceX market threat.
 
Follow Peter on Twitter: @pbdes

[pragmatik]

Старый пишет:
Лучшая тяжёлая РН - Протон!

Естественно, даже смешно обсуждать ариан в плане "самой лучшей ракеты"     если эта ракета при каждом !!!!!!коммерческом пуске, датируется налогоплательщиками Франции и.т.д.. В таком случае можно обсуждать и лунную ракету США и Энергию....в плане "лучшей ракеты" ..Ведь если бы их датировали так же как ЕС датирует Ариан, то эти бы Р/Н пускали и сейчас.
Так что лучше Протона пока      НЕТ..... пока нет.(в смысле протон хотят "закрыть", видно кому то за бугром, он мешает конкурировать.)

[Дмитрий]

Ариан лучшая ракета чем Протон, т.к. кормит инженеров.
И не около 40000 рублей в месяц
http://www.superjob.ru/resume/cv-9351057.html, а намного больше.

[pragmatik]

Дмитрий пишет:
Ариан лучшая ракета чем Протон, т.к. кормит инженеров.
И не около 40000 рублей в месяц
 http://www.superjob.ru/resume/cv-9351057.html , а намного больше.

вот оказывается для чего проектировался Ариан, а я то наивный ....     думал что нагрузку выводить.

[Старый]

Думаю что как кормушка нынешние Атлас с Дельтой превосходят Ариану.

[Mark]

Дмитрий пишет:
Ариан лучшая ракета чем Протон, т.к. кормит инженеров.
И не около 40000 рублей в месяц
http://www.superjob.ru/resume/cv-9351057.html , а намного больше.

ЕСА инженеры получают с начала от 50000 до 80000 Евро в год.

Das Gehalt eines Luft- und Raumfahrtingenieurs hängt stark von seiner Qualifikation und seiner Berufserfahrung ab. Berufseinsteiger verdienen in der Regel zwischen 60.000 und 80.000 Franken pro Jahr. Je nach Tätigkeit kann das Salär nach einigen Jahren bei mehr als 100.000 Franken liegen.

http://zhsf-edu.ch/traumberuf-luft-und-raumfahrtingenieur-welche-karrieremoglichkeiten-gibt-es/

[Mark]

Теперь идут серии тестов  двигателя VINCI в варианте M5, в конец 2014 года для завершения этапа проектирования. В течение десять месяцев будут 16 огневые испытания сделанных. Двигатель сосданы с новой керамической насадки будет использованы для Ariane 5ME и Ariane 6 для верных ступени.

The test series of this fifth variant of the Vinci engine, named M5, will run for ten months and include 16 firing tests, to freeze the design by the end of 2014. Ariane 5ME, being readied to fly from 2017 or 2018, will boost payload by 20% to 12T compared to the current launcher.

http://www.flightglobal.com/news/articles/vinci-engine-tests-lift-ariane-upgrade-programme-391140/

[Mark]

En exclusivité : le site de lancement d'Ariane 5 en 3D
 
 
http://www.futura-sciences.com/magazines/espace/infos/actu/d/astronautique-exclusivite-site-lancement-ariane-5-3d-45927/

[Apollo13]

Суперакция на Ариан-5. Из статьи не совсем понятно это стоимость только производства РН или вместе с пуском. Кроме того "больше 2 млрд евро" звучит немного расплывчато.

PARIS — Astrium Space Transportation, which in January changes its name to Airbus Defense and Space, will build 18 heavy-lift Ariane 5 rockets for delivery starting in 2017 under a contract valued at more than 2 billion euros ($2.7 billion), Astrium announced Dec. 14.
The contract, with launch service provider Arianespace of Evry, France, was signed at Europe's Guiana Space Center spaceport in South America, which is French territory, in the presence of French President Francois Hollande.
Arianespace had previously contracted with Astrium for Ariane 5 long-lead items to assure that the vehicles arrive as scheduled.
The precise value of the contract was not disclosed, but Astrium said the deal's terms reflect "a significant improvement" in the price-to-performance ratio compared to the previous 35-vehicle contract, which was signed in 2009.
Arianespace said in a statement that the new order brings to 38 the number of Ariane 5 rockets under construction or under contract.
Astrium, as prime contractor for the Ariane 5 rocket, is a major shareholder in Arianespace, alongside the French space agency, CNES. Other Ariane 5 contractors have smaller Arianespace stakes.
Astrium managers recently called for a thorough overhaul of the Ariane contractor mix with a view to reducing prices to stay viable in the competitive world commercial launch market.

http://www.spacenews.com/article/financial-report/38690arianespace-orders-18-ariane-5-rockets-from-astrium

[Mark]

Apollo13 пишет:
Суперакция на Ариан-5. Из статьи не совсем понятно это стоимость только производства РН или вместе с пуском. Кроме того "больше 2 млрд евро" звучит немного расплывчато.

 

http://www.spacenews.com/article/financial-report/38690arianespace-orders-18-ariane-5-rockets-from-astrium

То только стоимость создания носители. Получаем = 2 миллиарды поделить на 18 = это около 111 миллион Евро за носитель. С пуском будет около 200 миллионов Евро.

[Mark]

Циклограмма работы твердотопливных ускорителей - Ariane 5.

Посмотрел на прогнозируемые данные, да, очень сложная работа двигатели. Получаем:

- Тяга при пуске около 5200 kN.
- После 15 секунд получаем первый максимум.
- Потом уменьшается тяга чтобы после 35-40 секунд достигнуть минимум до 4000 kN, 
- как раз в точке, где получаем максимальные аэродинамические силы на носитель .  
- Теперь из-за увеличения поверхности увеличивается тяга, где после 90 секунд получаем 6300 KN.
- После етого тяга идет вниз до 0, около 120 секунд после пуска. 
- Разделение происходит, когда тяга меньше чем 200 KN.
- Средняя тяга 5270 KN на бустер.