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SLS - space launch system (3-я попытка)
 
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NASA_SLS‏ Подлинная учетная запись @NASA_SLS 6 ч. назад

The first bolts are in! @NASA and @BoeingSpace engineers at #NASAMichoud have begun integrating the engine section, the last major structure of the core stage, to the rest of the stage that will power #Artemis I.
MORE >> http://go.nasa.gov/2ddk9Ru


 
https://www.nasa.gov/exploration/systems/sls/five-sections-joined-for-sls-rocket-stage.html
Цитата
Sept. 20, 2019

NASA Joins Last of Five Sections for Space Launch System Rocket Stage


NASA finished assembling the main structural components for the Space Launch System (SLS) rocket core stage on Sept. 19. Engineers at NASA’s Michoud Assembly Facility in New Orleans fully integrated the last piece of the 212-foot-tall core stage by adding the engine section to the rest of the previously assembled structure. Boeing technicians bolted the engine section to the stage’s liquid hydrogen propellant tank. The engine section is located at the bottom of the 212-foot-tall core stage and is one of the most complicated pieces of hardware for the SLS rocket. It is the attachment point for the four RS-25 rockets and the two solid rocket boosters that produce a combined 8.8 millions pounds of thrust to send Artemis I to space. In addition, the engine section includes vital systems for mounting, controlling and delivering fuel fr om the stage’s two liquid propellant tanks to the rocket’s engines. This fall, NASA will work with core stage lead contractor, Boeing, and the RS-25 engine lead contractor, Aerojet Rocketdyne, to attach the four RS-25 engines and connect them to the main propulsion systems inside the engine section.
Credits: NASA/Steven Seipel
View Image Feature


NASA finished assembling and joining the main structural components for the largest rocket stage the agency has built since the Saturn V that sent Apollo astronauts to the Moon. Engineers at the agency’s Michoud Assembly Facility in New Orleans connected the last of the five sections of the Space Launch System (SLS) rocket core stage on Sept. 19. The stage will produce 2 million pounds of thrust to send Artemis I, the first flight of SLS and NASA’s Orion spacecraft to the Moon.

“NASA has achieved a historic first milestone by completing the final join of the core stage structure for NASA’s Space Launch System, the world’s most powerful rocket,” said Julie Bassler, the NASA SLS stages manager. “Now, to complete the stage, NASA will add the four RS-25 engines and complete the final integrated avionics and propulsion functional tests. This is an exciting time as we finish the first-time production of the complex core stage that will provide the power to send the Artemis I mission to the Moon.”

The last piece added to the stage was the engine section located at the bottom of the 212-foot-tall core stage. To complete the structure, technicians bolted the engine section to the stage’s liquid hydrogen propellant tank, which was recently attached to the other core stage structures. The engine section is one of the most complicated pieces of hardware for the SLS rocket and is the attachment point for the four RS-25 rockets and the two solid rocket boosters that produce a combined 8.8 millions pounds of thrust. The engine section also includes vital systems for mounting, controlling and delivering fuel from the stage’s two liquid propellant tanks to the rocket’s engines. This fall, NASA will work with core stage lead contractor, Boeing, and the RS-25 engine lead contractor, Aerojet Rocketdyne, to attach the four RS-25 engines and connect them to the main propulsion systems inside the engine section.

“Boeing expects to complete final assembly of the Artemis I core stage in December,” said Jennifer Boland-Masterson, Boeing operations direct at MAF. “After we deliver the stage, NASA will transport it on the agency’s Pegasus barge from Michoud to NASA’s Stennis Space Center near Bay St. Louis, Mississippi, for Green Run testing. Our team here at Michoud will continue work with NASA to build, outfit and assemble the core stage for Artemis II, the first mission that will send astronauts to orbit the Moon. Lessons learned and innovations developed in building the first core stage are making the second one progress much faster.”

During Green Run testing, engineers will install the core stage into the B-2 Test Stand at Stennis for a series of tests that will build like a crescendo over several months. This will be the first fully fueled test of this brand new rocket stage. Many aspects will be carried out for the first time, such as fueling and pressurizing the stage, and the test series culminates with firing up all four engines to demonstrate that the engines, tanks, fuel lines, valves, pressurization system, and software can all perform together as they will on launch day.


The core stage test team recently completed structural testing confirming the stage’s liquid hydrogen tank structural design is good for conditions that will be experienced in the rocket’s initial configuration, called Block 1, during the Artemis I launch. The 149-foot test article was lifted into a test stand at NASA’s Marshall Space Flight Center in Huntsville, Alabama, wh ere engineers put the tank through the paces during 37 separate test cases that simulated the stresses of launch that the SLS rocket experiences during flight. Testing will continue later this year to show the tank’s structural design is adequate for future designs of the vehicle as it evolves to a Block IB configuration and missions with more extreme forces.
Credits: NASA/Tyler Martin
View Image Feature


The SLS team also achieved another recent milestone by completing structural testing for the stage’s liquid hydrogen tank. The testing confirmed that the structural design for the tank on the rocket’s initial configuration, called Block 1, can withstand extreme conditions during launch and flight. Teams at NASA’s Marshall Space Flight Center in Huntsville, Alabama, put a test version of the tank through the paces during 37 separate test cases that exceed what engineers expect the SLS rocket to experience. The final test used 80,000 gallons of liquid nitrogen to simulate the cryogenic conditions, or extreme cold, that the liquid hydrogen tank will experience in flight. Testing will continue later this year to show the tank’s structural design is adequate for future designs of the vehicle as it evolves to a Block IB configuration and missions with even greater forces.

In addition to providing propellant and power to get the SLS rocket and Orion spacecraft to space, the core stage houses the flight computers and avionics components that control the first 8 minutes of flight. The avionics system, including the flight computers, completed integrated system level qualification testing showing the components all work together to control the rocket in the Software Integration and Test Facility (SITF) at Marshall. The next step is to test the flight software with all the ground system software, Orion and launch control in the Systems Integration Laboratory at Marshall.

“NASA and our contractor teams are making tremendous progress on every aspect of manufacturing, assembling and testing the complex systems needed to land American astronauts on the lunar surface by 2024,” Bassler said. “I am confident this hard work will result in a rocket that can provide the backbone for deep space transportation to the Moon and ultimately to Mars.”

NASA is working to land the first woman and the next man on the Moon by 2024. SLS and NASA’s Orion spacecraft, along with the Gateway in orbit around the Moon, and the Human Landing System are the backbone for deep space exploration. SLS is the only rocket that can send Orion, astronauts and supplies to the Moon in a single mission

Last Updated: Sept. 20, 2019
Editor: Jennifer Harbaugh
 
https://tass.ru/kosmos/6909558
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20 СЕН, 14:24
NASA объявило о завершении сборки центрального блока ракеты для полетов на Луну
В ближайшее время инженеры установят четыре двигателя RS-25

ТАСС, 20 сентября. Национальное управление США по аэронавтике и исследованию космического пространства (NASA) завершило сборку центрального блока тяжелой ракеты Space Launch System (SLS), которую намеревается использовать для отправки астронавтов на Луну. Об этом говорится в опубликованном в пятницу сообщении американского ведомства.

Инженеры на сборочном предприятии NASA в Новом Орлеане (штат Луизиана) присоединили к ракете последнюю, пятую часть центрального блока - двигательный отсек. "В ближайшее время там будут установлены четыре двигателя RS-25", - приводятся в пресс-релизе слова руководителя процесса сборки SLS Джули Басслер. "Теперь специалисты ведомства проведут заключительные испытания авионики и силовой установки", - отметила она.
Скрытый текст
 
https://www.nasa.gov/press-release/space-launch-system-hardware-to-arrive-on-pegasus-barge-at-kennedy
Цитата
Sept. 20, 2019
MEDIA ADVISORY M019-16

Space Launch System Hardware to Arrive on Pegasus Barge at Kennedy


Tugboats tow the Pegasus Barge away from the dock in the Turn Basin in Kennedy Space Center's Launch Complex 39 area.
Credits: NASA/Jim Grossmann


Media are invited to NASA’s Kennedy Space Center in Florida to view the Space Launch System (SLS) core stage pathfinder arrival on board the agency’s Pegasus Barge on Friday, Sept. 27 and the unloading and movement of the pathfinder on Monday, Sept. 30. Subject matter experts from the SLS program, Exploration Ground Systems (EGS) program and contractor Jacobs will be available to discuss the use of the pathfinder and the upcoming testing.

The SLS core stage pathfinder is a full-scale mockup that is identical to the core stage in shape, size and weight. The pathfinder, though not actual flight hardware, will provide the EGS team with the opportunity to practice stacking maneuvers and certify the new system inside the Vehicle Assembly Building (VAB) High Bay 3 before Artemis flight hardware arrives next year. Over the next several months, pathfinder will be used to validate ground support equipment and demonstrate how the core stage will be integrated in the VAB – the same process the actual core stage will undergo when being processed for Artemis I.
...

-end-

Last Updated: Sept. 23, 2019
Editor: Anna Heiney
 
"...Статья финансирования SLS в следующем году должна вырасти на $1,2 млрд по сравнению с 2019 годом до $2,586 млрд. Из них $300 млн будет потрачено на создание новой верхней ступени EUS, которую НАСА не намерено использовать как минимум до 2025 года. «Орион» получит $1,4 млрд, что лишь немного выше уровня текущего года."
 
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Max Andriyahov написал:
"...Статья финансирования SLS в следующем году должна вырасти на $1,2 млрд по сравнению с 2019 годом до $2,586 млрд. Из них $300 млн будет потрачено на создание новой верхней ступени EUS, которую НАСА не намерено использовать как минимум до 2025 года. «Орион» получит $1,4 млрд, что лишь немного выше уровня текущего года."
можно было и источник привести.

Нету увеличения SLS на 1,2 млрд$
черновик
https://www.nasa.gov/sites/default/files/atoms/files/fy_2020_congressional_ju­stification.pdf
смотрим какие суммы прописаны для SLS на 2019 и хотелось на 2020
новость что приняли на днях
Цитата
https://spacenews.com/senate-bill-offers-22-75-billion-for-nasa-in-2020/
Senate bill offers $22.75 billion for NASA in 2020
by Jeff Foust — September 24, 2019
...
Exploration programs received a $1.2 billion increase over 2019 in the bill. That total includes $2.586 billion for the Space Launch System, more than $400 million above 2019 levels, and $1.4 billion for Orion, slightly above 2019 levels. The additional SLS funding includes $300 million for work on the Exploration Upper Stage planned for the Block 1B version of the SLS, funding that the administration did not seek in its original funding request.
...
1,2 млрд на Большую статью бюджета
Изменено: triage - 25.09.2019 14:17:14
 
Всё ещё надеются на ноябрь 2020

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John Honeycutt, NASA SLS program manager, says at the ASEB meeting that while a new associate administrator for human exploration and operations will set a formal launch date for Artemis 1, his team is still working “aggressively” towards a November 2020 launch date.
 
Цитата
triage написал:
можно было и источник привести.
http://kosmolenta.com/index.php/1477-2019-09-25-two-news
 
https://blogs.nasa.gov/kennedy/2019/09/30/large-and-on-a-barge-sls-core-stage-pathfinder-arrives-at-kennedy/
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Large and on a Barge: SLS Core Stage Pathfinder Arrives at Kennedy

Danielle Sempsrott
Posted Sep 30, 2019 at 3:25 pm



NASA’s Pegasus Barge arrives at the Launch Complex 39 turn basin wharf at Kennedy Space Center in Florida on Sept. 27 to make its first delivery to Kennedy in support of the agency’s Artemis missions. Photo credit: NASA/Mike Downs

NASA’s Pegasus Barge arrived at the agency’s Kennedy Space Center in Florida on Sept. 27, carrying the 212-foot-long core stage pathfinder for the Space Launch System (SLS) rocket. Weighing in at 228,000 pounds, the pathfinder is a full-scale mock-up of the rocket’s core stage and will be used to validate ground support equipment and demonstrate it can be integrated with Kennedy facilities.


NASA’s Pegasus Barge makes its way along the intercoastal waterway to its destination at the Kennedy Space Center Launch Complex 39 turn basin wharf on Sept. 27, to make its first delivery to Kennedy in support of the agency’s Artemis missions. Photo credit: NASA/Mike Downs

After arriving at the Launch Complex 39 turn basin wharf – a docking area initially used during the Space Shuttle Program that has been modified to accommodate SLS hardware deliveries – the pathfinder was moved into the Vehicle Assembly Building (VAB) on Sept. 30, where it will remain for testing for about one month.

While in the VAB, pathfinder will provide NASA’s Exploration Ground Systems (EGS) and contractor Jacobs with the opportunity to practice stacking maneuvers in the VAB’s High Bay 3 prior to the arrival of the SLS flight hardware that will be processed for the agency’s Artemis I mission.

“This will help ensure that all core stage engineers and technicians are trained and certified in preparation for the flight core stage processing,” said Jim Bolton, EGS core stage element operations manager at Kennedy. “It’s a very significant milestone that will demonstrate the capabilities and ability for KSC to receive, process and integrate that flight hardware.”

The core stage – the largest rocket stage in the world and the backbone of SLS – will provide the power necessary to send NASA’s Orion spacecraft beyond Earth’s orbit and to the Moon. Before it can be brought to Kennedy for processing, the core stage will undergo its first full test with all flight hardware, known as a green run, at the agency’s Stennis Space Center in Mississippi. Following this, Pegasus will make its return journey to Kennedy in 2020 – this time, delivering the SLS core stage for launch.
 
Внутри

 
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NASA's Exploration Ground Systems‏ Подлинная учетная запись @NASAGroundSys 1 ч. назад

The @NASA_SLS core stage pathfinder being brought into the VAB 2-4PM yesterday. The team will practice using the VAB’s 175 and 325 ton cranes on either end of the 228,000 pound pathfinder, lifting and rotating it into the vertical position to be lowered into High Bay 3.






17 мин. назад

The massive, over 200 foot long @NASA_SLS core stage pathfinder in the Vehicle Assembly Building. Moves are starting now, as the team prepares to bring the pathfinder down the transfer aisle of the VAB at @NASAKennedy. More to come.

 
Кокое же  это изделие из трёх букв большое и толстое
Изменено: Чебурашка - 04.10.2019 16:07:48
 
Начались статические испытания последнего элемента SLS - бака жидкого кислорода
https://twitter.com/NASA_SLS/status/1180116114279407617


Изменено: Чебурашка - 04.10.2019 21:00:58
 
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Chris B - NSF‏ @NASASpaceflight 1 ч. назад

The installation of the first RS-25 engine on the Artemis-1 SLS Core Stage is now set to take place in the next few days, following a short halt in operations at MAF.

NSF's SLS Forum Section: https://forum.nasaspaceflight.com/index.php?board=37.0 …


 
Бгг... много раз им ещё часики переводить придётся  :D

 
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NASA_SLS‏ @NASA_SLS 14 мин. назад

NASA, @BoeingSpace and @AerojetRdyne crews at @NASA’s Michoud Assembly Facility have begun preparing the first of four RS-25 engines to be installed to the core stage for the first Artemis mission. Learn more about the engines HERE >> http://go.nasa.gov/2lpsghH



 
https://spacenews.com/nasa-official-hints-first-sls-launch-could-slip-to-mid-2021/
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NASA official hints first SLS launch could slip to mid-2021
by Jeff Foust — October 11, 2019


The acting associate administrator for human exploration and operations at NASA, Ken Bowersox, said that current schedules calling for a late 2020 first launch of SLS are "very, very aggressive" that that the launch may slip well into 2021. Credit: NASA

LAS CRUCES, N.M. — While NASA continues to wait to set a new official date for the first launch of its Space Launch System, an agency official said Oct. 10 that the launch could slip as late as the middle of 2021.

NASA’s formal estimate of the first launch of SLS, a mission called Artemis 1, remains late 2020. That date, though, assumes that everything will go exactly as planned for the remainder of the vehicle’s development and testing.

“The schedule that we’re managing to is very, very aggressive,” said Ken Bowersox, acting associate administrator for human exploration and operations at NASA, during a presentation at the International Symposium for Personal and Commercial Spaceflight (ISPCS) here.

That schedule calls for finishing the core stage of the vehicle at the end of this year and shipping it to the Stennis Space Center in Mississippi for a static-fire test known as the Green Run. “In the best case, it’s going to be five or six months” of testing there, he said.

He added, though, that there are “risks” to that timeline due to both technical issues, such as the amount of time needed to refurbish the stage after the test, as well as weather that can delay work on the outdoors test stand.

After the Green Run, the stage would be shipped to the Kennedy Space Center for integration with its two solid rocket boosters, upper stage and the Orion spacecraft that will perform an uncrewed test flight in cislunar space.

“We have a chance to actually have a rocket on the pad and launch by the end of next year,” he said. “But when you start throwing all those different uncertainties, it’s more likely that we will move out into 2021.”

Earlier in his speech, he suggested that the Artemis 1 launch could slip well into 2021. “Some time late next year, middle of the year after,” he said, “the first uncrewed Orion will be launched out around the moon.”

Bowersox’s comments are the strongest signal yet that a 2020 launch of the SLS appears unlikely. Slips in the schedule in March prompted NASA Administrator Jim Bridenstine to propose flying what was then known as Exploration Mission 1 on an alternative vehicle to the SLS, a proposal strongly opposed by congressional supporters of the rocket and which the agency ultimately decided not to pursue.

NASA also considered shortening or doing away entirely with the Green Run as a means of saving several months of schedule. That move was opposed by many agency advisors, including the Aerospace Safety Advisory Panel, and Bridenstine announced in July that the agency would go ahead with the Green Run test.

A formal decision on a new launch date, Bowersox said, won’t come until the agency hires a new associate administrator for human exploration and operations. Bowersox, a deputy associate administrator, has held the position in an acting capacity since Bridenstine reassigned longtime associate administrator Bill Gerstenmaier three months ago.

“When we name a new [associate administrator], we’re going to give that person a chance to look at all of the schedule analyses that have been done, and let them rebaseline the date and cost information,” he said.

NASA, though, has not appeared to be in a rush to select a permanent successor to Gerstenmaier. Bowersox noted that, when he testified before a House committee Sept. 18, he estimated that person would be selected “by the end of the year,” a schedule he said he was then told by agency leadership was too long. “Now what I say is somewhere between a few weeks and a few months.”

Bridenstine, speaking Oct. 10 at SpaceX’s headquarters in Hawthorne, California, after a meeting with Elon Musk, praised Bowersox for his interim leadership. “He’s doing great work,” Bridenstine said, arguing that it would not, at least, delay any commercial crew test flights. “As of right now, I’m very confident we can continue moving forward and not have any delays because of the opening in that position.”

Bridenstine hinted that the search for a new associate administrator may soon end. “We will come to a point where we settle on a name, but we’re not there yet,” he said. “That announcement is not months away, it’s weeks away.”

Bowersox said he was interested in taking the associate administrator position on a permanent basis. “If I wasn’t interested in the job, I wouldn’t still be here as the acting” associate administrator, he said. “I’d be happy to serve in the position.”
 
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NASA Sound Suppression Water test for SLS Mobile Launcher - 12 Oct. 2019

NASASpaceflight

Трансляция началась 30 минут назад
Смотреть с 22:40
https://www.youtube.com/watch?time_continue=1360&v=wqhCP48XXP0 (25:35)
 
на русском
В NASA назвали новую предполагаемую дату запуска самой мощной ракеты в мире
По мнению одного из высокопоставленных чиновников космического ведомства США, первый запуск носителя Space Launch System могут осуществить в середине 2021 года.

В то время как NASA выжидает удачный момент, чтобы установить новую официальную дату первого запуска своей сверхтяжелой ракеты Space Launch System, чиновник агентства Кеннет Бауэрсокс (Kenneth Bowersox) заявил 10 октября, что запуск могут перенести к середине 2021 года. Ранее первый старт хотели выполнить уже в следующем году.

Причин переноса много, но главная из них связана с высочайшей технической сложностью изделия и рисками, обусловленными данным обстоятельством. «Расписание, к реализации которого мы стремимся, очень и очень агрессивное», — заявил он. Этот график предусматривает завершение строительства основной ступени в конце этого года и отправку ее в Космический центр имени Джона Стенниса в Миссисипи для проведения огневых статических тестов, известных как Green Run.

Для реализации этого графика существуют риски, обусловленные как техническими проблемами, такими, как количество времени, необходимое для восстановления ступени после испытания, так и погодными условиями, которые могут задержать работу на испытательном стенде на открытом воздухе.

После Green Run ступень будет отправлена ​​в Космический центр им. Кеннеди для интеграции с двумя твердотопливными ракетными ускорителями, верхней ступенью и космическим кораблем «Орион», который должен будет выполнить испытательный полет.

«У нас есть шанс установить ракету на площадку и запустить ее к концу следующего года», — говорит Кен Бауэрсокс. «Но когда вы начнете учитывать разные неопределенности, то более вероятным кажется 2021 год».

Кеннет Бауэрсокс — инженер, офицер ВМС США и бывший астронавт НАСА. Он участвовал в пяти миссиях Спейс шаттл, а также был командиром шестого долговременного экипажа Международной космической станции. Сейчас он исполняющий обязанности заместителя администратора NASA по пилотируемым программам.

Первый старт ракеты носителя Space Launch System имеет обозначение «Артемида-1»: в рамках него планируют беспилотный облет Луны космическим кораблем Orion и вывод шести нано-спутников CubeSat. Ранее стало известно, что NASA выдало контракт на строительство от шести до двенадцати космических кораблей Orion.

Очевидно, что многочисленные переносы сроков бьют по престижу NASA и нынешнего политического руководства США. Напомним, недавно глава NASA Джим Брайденстайн довольно жестко высказался относительно программы пилотируемых полетов компании SpaceX, указав, что ее реализацию нужно ускорить.

https://naked-science.ru/article/cosmonautics/v-nasa-nazvali-novuyu
 
А чё, так можно, залезть в сопло?

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