NGLS - Next-Generation Launch System от ULA

Автор Salo, 23.02.2015 09:43:06

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Sam Grey

Да, чтоб наглядней было: 

Антон

Судя по картинке я так понимаю в качестве РБ выбрали все же Центавр. А ТТУ  видимо будут от Aerojet

Salo

14.04.2015 08:24:13 #42 Последнее редактирование: 14.04.2015 08:24:44 от Salo
http://spacenews.com/ulas-vulcan-rocket-to-be-rolled-out-in-stages/
ЦитатаULA's Vulcan Rocket To be Rolled out in Stages
by Mike Gruss -- April 13, 2015

ULA CEO Tory Bruno unveils the company's proposed Vulcan rocket during an April 13 press conference at the Space Symposium in Colorado Springs. Credit: Tom Kimmell for Space Foundation.
 
COLORADO SPRINGS, Colo. -- United Launch Alliance unveiled an incremental approach to replace its workhorse Atlas 5 rocket, an ambitious path forward that ultimately would include a new second stage and, later, reusable first-stage engines that would be captured midair by helicopter after each mission.
The plan would provide a competitive alternative to SpaceX's low-cost Falcon 9 rocket but entails risk for ULA as it funds a significant development program for as many as nine years as its competition gains momentum.
Tory Bruno, ULA's president and chief executive, declined to detail the company's exact investment in the project but suggested that new rockets typically cost about $2 billion to develop, including the main engine. During an April 13 press conference on the eve the 31st Space Symposium here, he said that cost would be borne by ULA and its strategic partners, but that the company would not turn down government money if that becomes available.
The first step in the developing the newly named Vulcan rocket is developing a new first stage featuring the methane-fueled BE-4 engine by Blue Origin of Kent, Washington. ULA is also working with Aerojet Rocketdyne on the AR-1 engine, in case the BE-4 runs into delays.
The program is driven by the requirement to replace the Russian-built RD-180 engine that serves as the main powerplant for ULA's Atlas 5. Congress imposed a ban on future use of Russian engines in U.S. national security missions following Russia's annexation of Crimea from Ukraine last year.
In addition to the new engine, the Vulcan's first stage would feature a stretch version of the tank used on ULA's Delta 4 rocket, which the company is phasing out in 2018 because it is too expensive. The second stage of the initial Vulcan version, slated to debut around 2019, would feature the same Centaur upper stage and fairing now used on the Atlas 5, Bruno said.
The Vulcan could be augmented by up to six solid rocket boosters, giving it greater lift capability than the largest version of the Atlas 5 but not as much as the Delta 4 Heavy, which features three core stages in a side-by-side configuration. Bruno said he plans to issue a request for proposals within the next 12 months for the large boosters, which would likely be built by either Orbital ATK or Aerojet Rocketdyne.
ULA told the Air Force in February it plans to start two separate U.S. Air Force certification processes for the rocket later this year, one with the BE-4 and one with the AR-1. Certification is required for the Vulcan to carry U.S. national security payloads.
Bruno said ULA's first choice is the BE-4 but that it continues to fund the AR-1 work as a backup option, and that ULA will make a final decision on in 2016.
The next step in Vulcan's evolution is a new upper stage known as the Advanced Cryogenic Evolved Stage, or ACES, which could be able to operate in space for weeks at a time, ULA officials said. This would open up a whole new range of missions to the Vulcan, ULA officials said.
The ACES stage would have anywhere from one to four cryogenic engines, depending on the mission. The candidate engines are: a new variant of the RL10 produced by Aerojet Rocketdyne and currently used on both the Atlas 5 and Delta 4; Blue Origin's BE-3; and an engine being jointly developed with XCOR aerospace.
ULA will sel ect the engine for the ACES stage in the next few years, Bruno said.
ACES, ULA officials said, would have "almost unlimited burns" and extend on-orbit operating time from hours to weeks.  The liquid-oxygen/liquid hydrogen-fueled stage would recycle excess fuel for attitude control and other purposes, ULA officials said.

Aerial Recovery
Ultimately, ULA plans to reuse the Vulcan's first stage engines through a process called Sensible Modular Autonomous Return Technology. After first-stage burnout, the two engines would be severed fr om the tank and deploy an inflatable heat shield to slow their re-entry. They then would deploy steerable parachutes, which would slow their descent enough so they could be recovered in mid-air by a helicopter.
Once recovered, the engines would be re-certified and used again. The reusability feature is especially important as engines make up about two-thirds of the rocket's cost, ULA officials said. Bruno has said he hopes to drive the cost of the standard Vulcan rocket down to about $100 million.
ULA hopes to introduce the ACES upper stage in 2023 and the reusable first stage in 2024, Bruno said.
"Были когда-то и мы рысаками!!!"

che wi

Sneak Peek at America's Next Ride to Space
http://youtu.be/cXQcyHNA6Mg

ЦитатаInnovative next generation launch system will provide country's most reliable, affordable, and accessible launch service.
https://www.youtube.com/watch?v=cXQcyHNA6Mg

Salo

14.04.2015 08:41:32 #44 Последнее редактирование: 14.04.2015 08:41:54 от Salo
Коротко:
Первая ступень - до шести ТТУ от Орбитал АТК, или Аэроджет с увеличенной тягой.

Вторая ступень - удлинённые баки от Дельты-4 с двумя BE-4, или в случае неудачи с двумя AR-1 общей тягой 500 тс. Впоследствии двигатели будут спасать в баллистической капсуле с вертолётным подхватом.

Третья ступень - на начальном этапе новая версия Центавра, а в последствии новая ступень ACES с одним-четырьмя RL10, BE-3 или XCOR. Кроме того поршневая помпа, использующая испаряющееся топливо для производства электроэнергии и наддува баков. Это позволит ACES работать до недели на орбите.
"Были когда-то и мы рысаками!!!"

snek

ЦитатаSam Grey пишет:
Да, чтоб наглядней было:
После этого масковская баржа уже не кажется таким уж цирком с конями.

Salo

Цитатаsnek пишет:
ЦитатаSam Grey пишет:
Да, чтоб наглядней было:
После этого масковская баржа уже не кажется таким уж цирком с конями.
Найдите пару отличий.;)
"Были когда-то и мы рысаками!!!"

Чебурашка

Не совсем понятно за счёт чего новая ракета обещает стать дешевле двух предыдущих

Apollo13

И кстати Вулкан с ТТУ (даже с 6) не заменит Дельту Хэви как ожидалось. Про Вулкан Хэви тоже ничего не сказано.

Еще один довод в пользу того что никаких 20 тонн ПГ без ТТУ там нет.


Александр Ч.

На английском http://spaceflightnow.com/2015/04/14/ula-chief-explains-reusability-and-innovation-of-new-rocket/
На русском http://geektimes.ru/post/248980/
Картинки:











Судя по крайней картинке дву-пуск на Луну ;)
Ad calendas graecas

Seerndv

ЦитатаULA is monitoring Blue Origin's progress and has Aerojet Rocketdyne's AR-1 kerosene engine as a replacement option, if necessary.
- означает ли это? что как BE-4 так и AR-1 на подходе, если выбирать однозначно они собрались уже в следующем году? :o
Иветта, Лизетта, Мюзетта,
Жанетта, о, Жоpжетта.
Вся жизнь моя вами,
Как солнцем июльским согpета,
Покуда со мной вы, клянусь,
Моя песня не спета.

Apollo13

14.04.2015 11:35:07 #52 Последнее редактирование: 14.04.2015 11:36:00 от Apollo13
А нет оказывается с самой мощной версией ACES Вулкан заменит Дельту Хэви. В 2023 году...

http://www.ulalaunch.com/Products_Vulcan.aspx

ЦитатаIn step two, the Centaur second stage will be replaced by the more powerful ACES in 2023. With the addition of ACES, Vulcan will achieve the current capability of the Delta IV Heavy, which carries the largest payloads for our most critical customers. 

Димитър

А почему вторая ступень тоньше и первой, и ГО? Могли би и сделать одного диаметра и смотрелось би лучше.

Salo

Это Центавр. Вы Атлас-5 видели когда-нибудь?
С ACES Ваша мечта осуществится и диаметры будут одинаковы.
"Были когда-то и мы рысаками!!!"

Димитър

ВЕ-4 обещают сделать тест в 2016 и начать производство в 2017.
Про АR-1 кроме разговоров ничего не знаю.

Salo

Ключевое слово обещают. Если бы всё было так шоколадно, то одновременную сертификацию двух версий ракеты не начинали бы.
"Были когда-то и мы рысаками!!!"

Salo

14.04.2015 11:52:11 #57 Последнее редактирование: 14.04.2015 11:56:35 от Salo
http://www.ulalaunch.com/Products_Vulcan.aspx
ЦитатаNext Generation Launch System


With the introduction of the Vulcan, ULA's next generation launch system (NGLS), ULA is transforming the future of space launch -- making it more affordable, accessible, and commercialized -- and innovating to develop solutions to the nation's most critical need: reliable access to space.

Unleashing Mankind's Potential in Space
More capabilities in space mean more capabilities here on Earth. By making it more affordable
to conduct launches, Vulcan will open up brand new opportunities for the nation's use of space.

Simple and Affordable
The NGLS offers our customers unprecedented flexibility in a single system. From low Earth orbit (LEO) to Pluto, the single-core NGLS does it all. This simple design is more cost-efficient for all customers, whether defense and national security, NASA science and human spaceflight, or commercial.

American Power
The NGLS will have an American engine, will offer the best value and with the introduction of the Advanced Cryogenic Evolved Stage (ACES) it will have greater capability than any other rocket on the market.

In step one, with a planned initial launch capability in 2019, Vulcan will exceed the capability of
Atlas V, serving the vast majority of our customers' mission needs. Step one of the NGLS consists of single booster stage, the high-energy Centaur second stage and either a 4-meter or 5-meter-diameter payload fairing. Up to four solid rocket boosters (SRBs) augment the lift off power of the 4-meter configuration, while up to six SRBs can be added to the 5-meter.

In step two, the Centaur second stage will be replaced by the more powerful ACES in 2023. With the addition of ACES, Vulcan will achieve the current capability of the Delta IV Heavy, which carries the largest payloads for our most critical customers.

Vulcan 4-meter-diameter Payload Fairing Configuration


Vulcan 5-meter-diameter Payload Fairing Configuration
"Были когда-то и мы рысаками!!!"

Apollo13

ЦитатаДимитър пишет:
и смотрелось би лучше.
Это аргумент :)

Apollo13

ЦитатаSalo пишет:
С ACES Ваша мечта осуществится и диаметры будут одинаковы.
Наверняка будут версии ACES разных диаметров и количества двигателей.