NGLS - Next-Generation Launch System от ULA

[Apollo13]

Дмитрий В. пишет:
С теми данными, что у Эда, спредшит для версии Вулкана 401 выдает порядка 25 тонн на стандартную НОО даже в SEC. Либо жесткое ограничение по прочности, либо данные Эда неправильные.

У меня спредшит выдает чуть меньше 12 т. 

Launch mass      436810   

Payload      11890   

      I   II

Full mass      400000   22830
Empty mass      32000   2030
Isp (atm) (s)      310   250
Isp (vac) (s)      335   450
Thrust (vac) (t)      540   10,983
Fuel consumption      1611,940299   24,40666667
Throttle   -      

Fairing mass      2090   
Fairing jettison (s)      240   

Sx      20   14
Sy      290   109
Cx      0,3   0,3
Cy      0,3   0,3

Вы может с ACES считали?

[Salo]

Mike Gruss ‏@Gruss_SN 20 ч.20 часов назад
Mike Gruss Ретвитнул

George Sowers
The Air Force awarded an $800K contract for work on ACES Monday.

Mike Gruss добавил,
 

 
George Sowers ‏@george_sowers
Check out the new ACES video. https://youtu.be/Bu72H3jMpuY  Great job by Jon Barr, another of our mad scientists!

[Salo]

[Seerndv]

Reduced Cost - не, от скромности им смерть не грозит  

А вот

ACES will be refuelable, reusable and can remain in space to support Cislunar1000. More to come in part 2...

- интересно, таки заправки будут?

[Salo]

17,2 т на ГПО против 13т у Дельты 4 Хэви.

[Seerndv]

- а я про уменьшенную, якобы, стоимость ( ещё будем смотреть в последующем)).
Это ничего что она у Дельты и так "на пределе согласия клиента" ?  

[silentpom]

Seerndv пишет:
интересно, таки заправки будут?

вы видели их презенташку с модулями для хранения топлива?

[Seerndv]

silentpom пишет:
вы видели их презенташку с модулями для хранения топлива?

- смотрел и слушал https://t.co/4qmOP9H3oZ

[Salo]

http://spacenews.com/ula-intends-to-lower-its-costs-and-raise-its-cool-to-compete-with-spacex/

ULA intends to lower its costs, and raise its cool, to compete with SpaceX
by Peter B. de Selding — March 16, 2016
 
United Launch Alliance's future Vulcan rocket is designed to compete with SpaceX's Falcon vehicle for U.S. government business. It also may improve ULA's pizzazz quotient relative to SpaceX -- a useful advantage in hiring. Credit: ULA ..
...
"Blue Origin is a super-rich girl, and then there is this poor girl over here, Aerojet Rocketdyne. But we have to continue to go to planned rehearsal dinners, buy cakes and all the rest with both."
 
ULA is now working with Kent, Washington-based Blue Origin, owned by Amazon founder Jeff Bezos; and Aerojet Rocketdyne of Rancho Cordova, California, on RD-180 replacements.
Aerojet Rocketdyne's AR1 engine uses liquid oxygen and kerosene. Blue Origin's BE-4 uses liquid oxygen and methane.
Tobey said Bezos has invested $500 million of his own money in Blue Origin and, as demonstrated during the explosion of a Blue Origin engine on a test stand, is willing to "open his checkbook" to pursue what for Bezos is more a passion than a quest for business profit.
Compared to Bezos, Aerojet Rocketdyne's AR1 is working off a relatively small government budget, Tobey said. He did not reference a recent U.S. Defense Department announcement that substantially more funds would be arriving to develop the AR1.
Comparing the two engine developments – Aerojet Rocketdyne pursuing the classic government funding route, while Blue Origin has a billionaire owner who can act lightning-fast – the two companies' situations do not favor Aerojet Rocketdyne.
"Compare it to having two fiancées, two possible brides," Tobey said of ULA's approach to the two. "Blue Origin is a super-rich girl, and then there is this poor girl over here, Aerojet Rocketdyne. But we have to continue to go to planned rehearsal dinners, buy cakes and all the rest with both.
"We're doing all the work on both, and the chance of Aerojet Rocketdyne beating the billionaire is pretty low. Basically we're putting a whole lot more energy into BE-4 for Blue Origin."
Using methane would be new for the U.S. space sector, imposing risks, but Tobey said the BE-4 engine is only 60 percent of the cost of the AR1, a clear advantage in today's cost-driven market.
Of both engines, he said: "They are never going to outperform the RD-180."

[Salo]

Mike Gruss ‏@Gruss_SN  18 мин.18 минут назад  
ULA says it has completed a preliminary design review on its Vulcan rocket powered by two BE-4 engines.

[che wi]

United Launch Alliance Completes Preliminary Design Review for Next-Generation Vulcan Centaur Rocket

Centennial, Colo., (March 24, 2016) – United Launch Alliance (ULA) successfully completed the Preliminary Design Review (PDR) for the Vulcan Centaur launch vehicle with dual Blue Origin BE-4 engines. The PDR, a major milestone in development of the Vulcan launch vehicle, confirms that the design meets the requirements for the diverse set of missions it will support. The ULA team will build upon this milestone to refine and test key elements of the design while executing a busy manifest of 14 launches in 2016.  

"The completion of the Vulcan Centaur rocket's PDR is the first of several major and very exciting milestones in the launch vehicle's development," said Tory Bruno, ULA president and chief executive officer. "We have a strong path to get to a 2019 flight test of this new, highly-capable American launch vehicle."

The Vulcan Centaur rocket design leverages the proven success of the Delta IV and Atlas V launch vehicles while introducing new technologies and innovative features which will ensure a reliable and affordable space launch service along with engines developed and manufactured in the United States. The Vulcan Centaur provides a path to replacement of the current fleet of Delta IV and Atlas V vehicles and will service a diverse range of markets including commercial, civil and national security space customers.

"Vulcan Centaur will revolutionize spaceflight and provide affordable, reliable access to space with an American main engine," said Mark Peller, ULA's program manager for major development.

In addition to the Blue Origin BE-4 engine, Aerojet Rocketdyne is developing the AR1 engine which could power the Vulcan Centaur. Such strategic partnerships for American main engines, Orbital ATK for the solid rocket boosters and RUAG Space for domestically-produced composite structures enable collaborative development of Vulcan maximizing the value of this new launch capability.

With more than a century of combined heritage, United Launch Alliance is the nation's most experienced and reliable launch service provider. ULA has successfully delivered more than 100 satellites to orbit that provide critical capabilities for troops in the field, aid meteorologists in tracking severe weather, enable personal device-based GPS navigation and unlock the mysteries of our solar system.

[Salo]

http://spaceflightnow.com/2016/03/24/reviewers-approve-early-design-work-on-new-vulcan-rocket/

[Salo]

Peter B. de Selding ‏@pbdes  5 ч.5 часов назад  
Ruag(3): Our ULA Vulcan rocket fairings'll be built in Decatur plant, w/ flight hrdwre production starting in 2018.
 
 
  Peter B. de Selding ‏@pbdes  5 ч.5 часов назад  
Ruag(2) says new deal w/ ULA includes 2 types of carbon-reinforced fairings for Vulcan; current one, used for Atlas 5, + smaller one.
 
  Peter B. de Selding ‏@pbdes  5 ч.5 часов назад  
Ruag Switzerland(1) expands supplier relationship w/ ULA to include carbon structures for future Vulcan rocket.
 

[Salo]

Vulcan Centaur: Designing High Performance, Low Cost Access to Space

[Salo]

https://www.flightglobal.com/news/articles/ula-and-spacex-on-different-paths-toward-rocket-reus-424172/

ULA and SpaceX on different paths toward rocket reuse
13 April, 2016[/li][li]BY: James Drew
Washington DC
 
When it comes to dramatically lowering the cost of access to space, industry titans agree that reusability is key. But that's where the unity ends, as industry upstart SpaceX and long-time launch provider //United Launch Alliance (ULA) take two very different approaches to reusability.
Speaking at the 32nd Space Symposium in //Colorado%20Springs, Colorado this week, ULA president and chief executive Tory Bruno said it would take a series of 10 launches just to recoup the manufacturing and logistical costs associated with building and recovering a returned booster.
SpaceX's successful Falcon 9 vertical landing on an ocean landing pad last week was undoubtedly a historic accomplishment, but ULA maintains that its engine recovery concept makes more sense from a business perspective.
Last month, the company completed a preliminary design review of its Vulcan Centaur next-generation launch vehicle, powered by dual Blue Origin BE-4 liquefied natural gas/liquid oxygen engines. It's also considering the //Aerojet Rocketdyne AR-1 oxygen-rich staged combustion kerosene engine.
Eventually, the Vulcan design will be updated to jettison those engines. The engine module will be protected on its high-speed fall back to Earth by a hypercone heatshield before deploying a parachute and being caught mid-air by an awaiting helicopter.
Bruno says reusable rockets might someday be economically viable, but it's a difficult place to start and the costs quickly snowball.
"If you could reuse your first-stage booster and it didn't cost you anything to do that, you might be able to knock 25-30% off the price of going to space," he said. "That's worth doing; those are real dollars. Unfortunately, it's not free.
"When we looked at that math, we figure you've got to do about 10 reuses to break even, which is pointless because you're doing this to save money, so you've got to do this about 15 times."
Bruno contends that the rocket engines are the most complex and expensive part of the rocket, whereas most of the weight is in the less expensive fuel tanks.
A typical Atlas V mission costs upwards of $160 million, whereas the Vulcan's target is around $100 million per launch. Vulcan won't be introduced with the reusable engine stage, but that capability will come later as the third step in ULA's step transition to a next-generation space launch system, which starts between the Vulcan first flight in 2019 and introduces a reusable thrust stage around 2024. ULA nearer-term priority is transitioning from the Centaur upper stage to a new Advanced Cryogenic Evolved Stage (ACES).
"Rocket engines are complicated and arguably more complicated than the whole rest of the rocket that you put together," Bruno says. "But all the weight is in the fuel tanks – two-thirds of the weight, the cheapest thing on the rocket. What if you just bring the engines back? You don't have all these extra systems; you can do it every time.
"The economic hurdle to break even is only two reuses and it's five times easier. Our approach is to start there."

[Seerndv]

Salo пишет:
Last month, the company completed a preliminary design review of its Vulcan Centaur next-generation launch vehicle, powered by dual Blue Origin BE-4 liquefied natural gas/liquid oxygen engines. It's also considering the Aerojet Rocketdyne AR-1 oxygen-rich staged combustion kerosene engine.

- как -то меня всегда смущал дуализм в проекте "Вулкана" - "метан, но и керосин можем"  ...    :oops:
И весь этот торт с вишенками твёрдотопливными ускорителями - не ведёт ли это к изначальному увеличению стоимости проектирования ?

[Apollo13]

Не ведет, потому что никаких серьезных денег на Вулкан еще не потратили и могут в любой момент закрыть.

[Apollo13]

Тем временем Вулкан потолстел до 5,4 м.

https://www.reddit.com/r/ula/comments/43v33x/be4_forgings_assemble_full_engine_testing_later/czswvua

[Lanista]

"Может потолстеть"

[Salo]

https://img.novosti-kosmonavtiki.ru/235913.png