Author Topic: SLS Development Stage UPDATE Thread (2)  (Read 370927 times)

Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #840 on: 09/05/2017 09:19 PM »
Quote
.@NASA_SLS Booster Update: Five of 10 segments are now in storage & awaiting shipment to @NASAKennedy where they will be prepped for launch

https://twitter.com/orbitalatk/status/905159759715635200

Online RonM

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #841 on: 09/06/2017 01:56 AM »
Great article, but lacking proper metric units. Don't want to alienate the rest of the world!
Isn't SLS being built using Imperial units?  If so, the most precise numbers will be in those units.

 - Ed Kyle
US Imperial Units is primary measurement and Metric is listed as secondary per Space Launch System (SLS) Mission Planner's Guide - ESD 30000 Baseline. PSM most charts are hybrid.

Sorry about being pedantic, but the US doesn't used Imperial units. We use US Customary units. They are mostly the same, but with some important differences.

https://en.wikipedia.org/wiki/Comparison_of_the_imperial_and_US_customary_measurement_systems

I wished we used the metric system, it's a lot simpler when you get used to it.

Offline russianhalo117

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #842 on: 09/06/2017 03:54 AM »
Great article, but lacking proper metric units. Don't want to alienate the rest of the world!
Isn't SLS being built using Imperial units?  If so, the most precise numbers will be in those units.

 - Ed Kyle
US Imperial Units is primary measurement and Metric is listed as secondary per Space Launch System (SLS) Mission Planner's Guide - ESD 30000 Baseline. PSM most charts are hybrid.

Sorry about being pedantic, but the US doesn't used Imperial units. We use US Customary units. They are mostly the same, but with some important differences.

https://en.wikipedia.org/wiki/Comparison_of_the_imperial_and_US_customary_measurement_systems

I wished we used the metric system, it's a lot simpler when you get used to it.
document says US Imperial Units so that is what we are going to just roll with the flow. Discussion thread here: http://forum.nasaspaceflight.com/index.php?topic=38021.0

Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #843 on: 09/06/2017 01:53 PM »
Quote
Orbital ATK Completes Qualification of Solid Rocket Booster Avionics for NASA's Space Launch System

Company’s Five-Segment Boosters will Help Provide Initial Thrust for First Two Minutes of Flight for SLS

Full Booster Certification Set to Complete Later this Year


Dulles, Virginia 6 September 2017 – Orbital ATK (NYSE: OA), a global leader in aerospace and defense technologies, recently completed an important qualification test of the avionics system for the solid rocket boosters the company has developed and is now manufacturing for NASA’s Space Launch System (SLS). Completion of this milestone is an important step toward preparing the SLS and Orion spacecraft for their first flight in 2019. Two Orbital ATK-developed five-segment rocket boosters will be used on each SLS launch to help provide initial thrust for the first two minutes of flight.

The avionics system is considered the “brains of the booster” as it starts booster ignition, communicates with the SLS launch vehicle computers during flight, and initiates booster separation upon completion of the first stage burn. The system is now qualified as meeting NASA’s demanding human-rating requirements, which provide a level of redundancy to ensure a safe flight environment through various phases of lift-off, ascent and staging.

“Completion of booster avionics system qualification is a significant step forward in supporting overall vehicle qualification and launch of the first flight of SLS – Exploration Mission-1,” said Jeff Foote, Vice President of NASA Programs for Orbital ATK’s Propulsion Systems Division. “We are proud of this accomplishment and look forward to completing full certification of the booster later this year.”

Qualification of the booster avionics system included a rigorous and comprehensive test series that thoroughly verified the fidelity of the system in a variety of expected and abnormal conditions. Key interactions confirmed during qualification testing included the ability to initiate booster ignition, control the booster during flight, and terminate flight.

The Space Launch System is NASA’s new heavy-lift launch vehicle that is being built to take crew and cargo to destinations beyond earth orbit, including to cislunar space and eventually Mars. SLS, along with the Orion spacecraft, will enable human exploration on a variety of missions to deep space. It has the greatest capacity of any launch system ever built, ensuring continued American leadership in space exploration.

Orbital ATK manufactures the twin, five-segment solid rocket boosters in Promontory, Utah, about an hour and a half north of Salt Lake City. Contributing to SLS booster production are 29 key suppliers across 17 states including Alabama, Arizona, California, Connecticut, Florida, Indiana, Kentucky, Massachusetts, Minnesota, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Texas, Utah and Wisconsin.

http://www.orbitalatk.com/news-room/release.asp?prid=285

Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #844 on: 09/07/2017 05:31 AM »
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NASA Completes Welding of Liquid Oxygen Tank for First SLS Flight

NASA is another step closer to completing all main structures for the agency’s first launch of the Space Launch System deep space rocket. The liquid oxygen flight tank was recently built in the Vertical Assembly Center robotic welder at NASA's Michoud Assembly Facility in New Orleans. After the liquid oxygen tank was inspected, it was moved to another area for plug welding to fill the holes left by the friction stir welding process. Five major parts -- the engine section, liquid hydrogen tank, intertank, liquid oxygen tank and forward skirt –will be connected together to form the 212-foot-tall core stage, the backbone of the SLS rocket. Boeing, the prime contractor for the core stage, is welding the liquid hydrogen tank structure--the final major core stage structure to be built for the first integrated flight of SLS and Orion. The liquid hydrogen and liquid oxygen tanks will hold 733,000 gallons of propellant to power the stage's four RS-25 engines that together produce more than 2 million pounds of thrust.

Image credit: NASA/MSFC/Michoud/Jude Guidry

Last Updated: Sept. 1, 2017

https://www.nasa.gov/exploration/systems/sls/multimedia/nasa-completes-welding-of-liquid-oxygen-tank-for-first-sls-flight.html


Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #846 on: 09/13/2017 08:32 PM »
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Booster update: Both aft segments for @NASA_SLS boosters are now in final assembly at our facility in Utah. #OrbitalATKDelivers

https://twitter.com/orbitalatk/status/908064562695561216

Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #847 on: 09/21/2017 02:45 PM »
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NASA_SLS‏Verified account @NASA_SLS 14m14 minutes ago

Workers at @NASA_Marshall are cleaning the #NASASLS LVSA by hand so thermal protection can be applied! >> https://go.nasa.gov/2xO46Aw

https://twitter.com/NASA_SLS/status/910873761372672000

Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #848 on: 09/25/2017 10:06 PM »
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Final Assembly techs transferred @NASA_SLS #EM1 Ctr/Ctr booster segment for processing today in Promontory. EM-1 aft segment in background

https://twitter.com/orbitalatk/status/912425096396115968

Online Chris Bergin

Re: SLS Development Stage UPDATE Thread (2)
« Reply #849 on: 09/27/2017 12:15 PM »
You have to translate it, but it's rare for Roscosmos to mention SLS by name and the DSG plans.
https://www.roscosmos.ru/24136/

Offline russianhalo117

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #850 on: 09/27/2017 03:39 PM »
You have to translate it, but it's rare for Roscosmos to mention SLS by name and the DSG plans.
https://www.roscosmos.ru/24136/
Translation:
Quote
NEWS
ROSKOSMOS - NASA. JOINT RESEARCH OF FAR COSMOS
9/27/2017 12:40 PM
State corporation "ROSKOSMOS" and NASA (National Aeronautics and Space Administration of the USA) during the 68th International Astronautical Congress in Adelaide (Australia) signed a joint statement on cooperation in the field of exploration and development of outer space.
 
ROSKOSMOS and NASA confirmed the intention to use the International Space Station (ISS) as a basis for further space exploration, as well as cooperation within the international lunar program: the creation of the near-Earth visited platform Deep Space Gateway, standardization of standards, scientific missions on the moon orbit and on the lunar surface.
 
In particular, the partners intend to develop international technical standards, which will be used in the future, including for the establishment of the station in the near-moon orbit. ROSKOSMOS and NASA have already reached an understanding on the standards of the docking station of the future station. Taking into account the serious domestic experience in the development of docking stations, the future elements of the station will be created on the basis of Russian developments, as well as the standards of life support systems. The developed standards will be used by all countries in the development and creation of their space technology.
 
Currently, other space powers are also considering the issue of joining the project of the international lunar research program and the creation of the Deep Space Gateway - they are studying their scientific and technical potential for participation in Earth satellite research.
 
The parties also discussed the possibility of using Russian carrier rockets (RNs) to create the infrastructure of the lunar station. So, at the first stage it is supposed to use the American super-heavy SL SLS in parallel with the domestic heavy rockets Proton-M and Angara A5M. After the creation of the Russian superheavy rocket, it will also be used to provide the lunar orbital station.
 
The main work on the creation of the lunar station will begin in the mid-2020s.
 
Igor KOMAROV, General Director of Roskosmos State Corporation: "At least five countries are working on the creation of their own manned spacecraft and systems. In order to avoid problems in the future in technical cooperation, part of the standards should be unified - for the ability of different countries to work on their products and to join the international near-moon station. Part of the key standards will be formed on the basis of Russian developments. The agreements reached open new prospects for international cooperation and expand the opportunities for using the capabilities of the Russian space industry. "

Similar:
http://www.popularmechanics.com/space/moon-mars/news/a28304/russia-nasa-cis-lunar/

Offline AnalogMan

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #851 on: 10/06/2017 10:24 PM »
A recent presentation from Dynetics:

Update on Risk Reduction Activities for a Liquid Advanced Booster for NASA's Space Launch System
International Astronautical Congress 2017; 25-29 September 2017

Abstract:
Goals of NASA's Advanced Booster Engineering Demonstration and/or Risk Reduction (ABEDRR) are to: (1) Reduce risks leading to an affordable Advanced Booster that meets the evolved capabilities of SLS. (2) Enable competition by mitigating targeted Advanced Booster risks to enhance SLS affordability. SLS Block 1 vehicle is being designed to carry 70 mT to LEO: (1) Uses two five-segment solid rocket boosters (SRBs) similar to the boosters that helped power the space shuttle to orbit. Evolved 130 mT payload class rocket requires an advanced booster with more thrust than any existing U.S. liquid-or solid-fueled boosters.

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20170009489.pdf

Copy also attached.

Online Chris Bergin

Re: SLS Development Stage UPDATE Thread (2)
« Reply #852 on: 10/14/2017 01:55 PM »
Per waiting on the new EM-1 date.

L2 info shows they are deciding between the "best case" date of December 2019 and a "risk informed" date of Q2 (around May) 2020 for EM-1.

Offline catdlr

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #853 on: 10/23/2017 09:20 PM »
Insider Exclusive: The People and the Parts of NASA's EM-1 mission


SpaceFlight Insider - Official Page
Published on Oct 23, 2017


PROMONTORY, Utah -- Orbital ATK is deep into the production of the solid rocket boosters that will be used for NASA’s Space Launch System. SpaceFlight Insider was granted an exclusive tour of the processes and personnel making the giant rockets that NASA hopes will help take astronauts deeper into space than has ever been attempted before.

https://www.youtube.com/watch?v=CzcIoqRH0nE?t=001

Tony De La Rosa


Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #855 on: 10/25/2017 02:35 PM »
Quote
Mark Kirasich: EM-1 crew module powered-on testing going so well, made up for time lost during hurricane shutdown at KSC. #VonBraun

https://twitter.com/jeff_foust/status/923194525983571968

Edit to add:

Quote
Kirasich: EM-1 Orion crew module should be done in February or March next year, await arrival of service module. #vonbraun

https://twitter.com/jeff_foust/status/923194825507246080

Quote
Kirasich: Expect EM-1 service module to be completed and delivered to KSC in the summer of 2018. #VonBraun

https://twitter.com/jeff_foust/status/923195583782965249
« Last Edit: 10/25/2017 02:38 PM by FutureSpaceTourist »

Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #856 on: 10/26/2017 08:36 PM »
Quote
Two @NASA_SLS booster segments were transferred to storage
yesterday, making 7 of the 10 #EM1 segments ready for shipment when requested.

https://twitter.com/orbitalatk/status/923634453188087808

Offline FutureSpaceTourist

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #857 on: 11/06/2017 07:29 PM »
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Techs paint photogrammetric markings on #EM1 booster aft exit cone prior to its shipment to @NASAKennedy for first flight of @NASA_SLS

https://twitter.com/orbitalatk/status/927618751985483776

Quote
These checker-board markings are on all booster segments & will provide visual reference points for tracking during launch & separation

https://twitter.com/orbitalatk/status/927620542722658310

Offline catdlr

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #858 on: 11/06/2017 09:53 PM »
Space Launch System Scale and Power (Animation) (version 2 - a/o Nov 1, 2017)

NASA's Marshall Center
Published on Nov 6, 2017


Animation depicting NASA’s Space Launch System, the world's most powerful rocket for a new era of human exploration beyond Earth’s orbit. With its unprecedented capabilities, SLS will launch astronauts in the agency’s Orion spacecraft on missions to explore multiple, deep-space destinations, including Mars. Traveling to deep space requires a large vehicle that can carry huge payloads, and future evolutions of SLS with the exploration upper stage and advanced boosters will increase the rocket’s lift capability and flexibility for multiple types of mission needs.

https://www.youtube.com/watch?v=u2nod-ek7ys?t=001

Tony De La Rosa

Offline ChrisGebhardt

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Re: SLS Development Stage UPDATE Thread (2)
« Reply #859 on: 11/08/2017 07:18 PM »
Basic gist of the attached release is: All analyses say No Earlier Than June 2020 now for first SLS launch. But NASA acting Admin says agency is "protecting/managing" toward a December 2019 flight - 6 months earlier then what the analyses say is realistically possible.

https://www.nasa.gov/feature/nasa-completes-review-of-first-sls-orion-deep-space-exploration-mission/

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