Author Topic: Sierra Space LEO Space station  (Read 72134 times)

Offline FutureSpaceTourist

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Sierra Space LEO Space station
« on: 03/31/2021 07:23 pm »
https://www.sncorp.com/press-releases/snc-details-for-leo-commercialization-and-commercial-space-station

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OZMENS’ SNC ANNOUNCES DETAILS FOR COMMERCIAL SPACE STATION AND LEO COMMERCIALIZATION

Crewed Dream Chaser Spaceplane to Shuttle Private Astronauts

SPARKS, Nev., March 31, 2021 – Sierra Nevada Corporation (SNC), the global aerospace and national security company owned by Eren and Fatih Ozmen, outlined development plans for its low-Earth orbit (LEO) space station – leveraging its transportation and destination technologies – releasing new images, details and video of the unique concept in support of LEO commercialization.

The space station is a configuration of multiple large inflatable LIFE™ habitats that can be serviced by both cargo and crew carrying Dream Chaser® spaceplanes.

“There is no scalable space travel industry without a spaceplane,” said SNC’s Chairwoman and owner Eren Ozmen. “Dream Chaser and its runway landing offer the scalable, preferred solution for humans and science in support of a vibrant LEO economy.”

SNC also released that a crewed Dream Chaser will be able to shuttle private astronauts and to serve as the only vehicle capable of rescuing astronauts from space destinations and returning them to Earth via a safe and speedy runway landing.

Among the industries that have demonstrated interest in space-based operations:

In-space manufacturing such as 3D printing
Pharmaceutical and medical research
Agricultural production for food and science
Movie production
Tourism

The Dream Chaser, America’s Spaceplane®, is a reusable, multi-mission space utility vehicle. Dream Chaser Tenacity™ spaceplane and the Shooting Star™ transport vehicle will begin providing cargo delivery and disposal services to the International Space Station under NASA’s Commercial Resupply Services 2 (CRS-2) contract late next year.

The LIFE habitat is a three story, 27-foot large inflatable fabric environment that launches on a conventional rocket and inflates on-orbit. The LIFE habitat is undergoing a NASA soft-goods certification this year and the full size ground prototype developed under NASA’s NextSTEP-2 contract is in the process of being transferred from Johnson Space Center in Texas to Kennedy Space Center in Florida for further testing on short-and long-term habitation. SNC’s Astro Garden® system also provides fresh food within the habitat.

“NASA has asked private industry to come to the table with alternatives to the International Space Station,” said Janet Kavandi former NASA astronaut and SSG executive vice president of SNC’s Space Systems. “SNC intends to lead in LEO commercialization, building on NASA’s efforts to date and welcoming additional public and private partners worldwide.”

The first Dream Chaser orbital vehicle is being assembled in Louisville, Colorado. Thermal protection tiles are being installed on the vehicles exterior and its wings will be attached this summer.

About Dream Chaser Spacecraft

Owned and operated by SNC, the Dream Chaser spacecraft is a reusable, multi-mission space utility vehicle. It is capable of transportation services to and from low-Earth orbit and is the only commercial, lifting-body vehicle capable of a runway landing. The Dream Chaser Cargo System was selected by NASA to provide cargo delivery and disposal services to the International Space Station under the Commercial Resupply Services 2 (CRS-2) contract. All Dream Chaser CRS-2 cargo missions are planned to land at Kennedy Space Center’s Shuttle Landing Facility.

About Sierra Nevada Corporation (SNC)

Owned by Chairwoman and President Eren Ozmen and CEO Fatih Ozmen, SNC is a trusted leader in solving the world’s toughest challenges through best-of-breed, open architecture engineering in Space Systems, Commercial Solutions, and National Security and Defense. SNC is recognized among The Top 10 Most Innovative Companies in Space, as a Tier One Superior Supplier for the U.S. Air Force and is the only aerospace and defense firm selected as a 2020 US Best Managed Company. For nearly 60 years, SNC has delivered state-of-the-art civil, military and commercial solutions including more than 4,000 space systems, subsystems and components to customers worldwide, and participation in more than 450 missions to space, including to Mars.

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« Last Edit: 06/04/2021 08:58 pm by zubenelgenubi »

Offline FutureSpaceTourist

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Re: SNC LEO Space station
« Reply #1 on: 03/31/2021 07:24 pm »
https://twitter.com/sierranevcorp/status/1377338364752490501

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New video illustrating SNC’s vision for development plans for a SNC low-Earth orbit (LEO) space station bit.ly/3mk3y01 #FutureofSpace #Space



https://twitter.com/sierranevcorp/status/1377339565455773697

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“SNC intends to lead in LEO commercialization, building on NASA’s efforts to date and welcoming additional public and private partners worldwide” says @janetkavandi #FutureofSpace #Space

Offline ncb1397

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Re: SNC LEO Space station
« Reply #2 on: 03/31/2021 07:36 pm »
I think the scale is off on this. Maybe these are Ultra Dream Chasers or something.
« Last Edit: 03/31/2021 07:36 pm by ncb1397 »

Offline mainmind

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Re: SNC LEO Space station
« Reply #3 on: 03/31/2021 07:49 pm »
 
I think the scale is off on this. Maybe these are Ultra Dream Chasers or something.

If that is a standard robotics grapple fixture like the Canadarm2 uses on Cygnus and Cargo Dragon vehicles, it's diameter is almost 0.7 meters. Looks like you could have 2.5 of them span the height of that astronaut on EVA. So maybe it's a regular sized DreamChaser?

(Dimensions for FRGF from here: https://explorers.larc.nasa.gov/HPMIDEX/pdf_files/17C_Robotics-020918_R1.pdf)

Offline ncb1397

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Re: SNC LEO Space station
« Reply #4 on: 03/31/2021 08:23 pm »
I think the scale is off on this. Maybe these are Ultra Dream Chasers or something.

If that is a standard robotics grapple fixture like the Canadarm2 uses on Cygnus and Cargo Dragon vehicles, it's diameter is almost 0.7 meters. Looks like you could have 2.5 of them span the height of that astronaut on EVA. So maybe it's a regular sized DreamChaser?

(Dimensions for FRGF from here: https://explorers.larc.nasa.gov/HPMIDEX/pdf_files/17C_Robotics-020918_R1.pdf)

Maybe you are right. SNC says the Shooting Star is a "15 foot cargo module". Presumably that is the length, not the diameter. If the Astronaut is 5 feet tall (maybe a bit taller), it looks about right (it looks like you can fit about 3 of them along the height of the cargo module).

Side note: Apparently the shortest US astronaut was 5'3" (Wendy Lawrence).
« Last Edit: 03/31/2021 08:26 pm by ncb1397 »

Online Lee Jay

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Re: SNC LEO Space station
« Reply #5 on: 03/31/2021 08:31 pm »
I attended the press event and was able to ask questions.

LIFE is huge - 300 cubic meters.  Thus a 4-node station would enclose a lot more volume than ISS (~1000m^3).
Dream Chaser will have windows.  Whether or not it will have forward-facing windows is less clear.
The station is launch-vehicle agnostic, given lift capacity and a 5m fairing.
The station is expected to be able to host commercial or other organization's vehicles and modules.
They anticipate the possibility of having multiple stations in multiple orbits for multiple purposes, such as tourism, research, manufacturing, and even a station with no people onboard for a pristine environment.
DC has 80-85% commonality between cargo and crew versions.

Offline ncb1397

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Re: SNC LEO Space station
« Reply #6 on: 04/01/2021 12:15 am »
Short video clip of the press conference...
https://www.usatoday.com/videos/news/nation/2021/03/31/sierra-nevada-corp-unveils-space-station-plans/4828103001/

Slightly longer Youtube version...

« Last Edit: 04/01/2021 12:22 am by ncb1397 »

Offline edzieba

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Re: SNC LEO Space station
« Reply #7 on: 04/01/2021 02:14 pm »
Launching on what appears to be Vulcan Centaur Heavy (6 SRBs, extended Centaur) from an alternate history LC-39A.

Online Lee Jay

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Re: SNC LEO Space station
« Reply #8 on: 04/01/2021 05:49 pm »
Deleted because the video was taken private and re-posted on Vimeo.
« Last Edit: 04/02/2021 02:17 pm by Lee Jay »

Offline BrightLight

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Re: SNC LEO Space station
« Reply #9 on: 04/01/2021 07:44 pm »
In the video supplied by Lee Jay, at 1:09:35 Steve Lindsey says that after the CRS2 vehicle, SNC will build a crewed version. He also says (1:09:55) that in an emergency, the CRS2 vehicle with ECLSS can bring back astronauts.
« Last Edit: 04/01/2021 07:47 pm by BrightLight »

Offline TrevorMonty

Re: SNC LEO Space station
« Reply #10 on: 04/01/2021 08:07 pm »
Sounds like crew DC won't have windows in front. Don't need them for landing as screens with cameras and other sensors can do better job. Heat from reentry causes lot engineering headaches with front windows. Will still have windows in rear.

Pushing ability of cargo DC to return Astronauts in emergency. Cargo is 80% of crew version, sound like it just needs LAS, fixed wings and extra ECLSS endurance.

Can launch inflatable habitat and service module on single launch (Vulcan??) so one launch to have operational station. Looking to partners to provide other modules, my guess Thale Alenia, they are experts in this area.

Orbit flexible, most likely optimised for launch site that will service it eg Wallops or Cape.

Sent from my SM-G570Y using Tapatalk


Online Lee Jay

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Re: SNC LEO Space station
« Reply #11 on: 04/01/2021 10:53 pm »
Pictures.

Online mn

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Re: SNC LEO Space station
« Reply #12 on: 04/01/2021 11:11 pm »
So is this a dream? or is there real money to do this?

I understand there is some nasa money but doesn't seem like anything close to what's needed for something like this to happen.

Offline RonM

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Re: SNC LEO Space station
« Reply #13 on: 04/01/2021 11:37 pm »
Pushing ability of cargo DC to return Astronauts in emergency. Cargo is 80% of crew version, sound like it just needs LAS, fixed wings and extra ECLSS endurance.

Cargo DC doesn't need LAS or fixed wings. It's already at the space station if the need arises for crew to use it in an emergency. Would need ECLSS.

Online Lee Jay

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Re: SNC LEO Space station
« Reply #14 on: 04/02/2021 12:12 am »
I forgot - crew DC still launches with no fairing.

Offline GWH

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Re: SNC LEO Space station
« Reply #15 on: 04/02/2021 12:20 am »
Another space station concept with no windows  ::)

I like SNC but I am getting big time Bigelow vibes from this where they are pushing out a concept with nowhere near the business case to make it happen.  SNC is leaps and bounds more business savvy than Bigelow,  but I won't be holding my breath to see if this goes anywhere.

Online adrianwyard

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Re: SNC LEO Space station
« Reply #16 on: 04/02/2021 12:56 am »
The YouTube video is now private :-(

Any mention of Launch Abort capability for crewed version?

Whole event.  It's unlisted but I got explicit written permission from SNC to share the link publicly.  The event starts about 45:30 in.



Online Lee Jay

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Re: SNC LEO Space station
« Reply #17 on: 04/02/2021 01:05 am »
The YouTube video is now private :-(

Any mention of Launch Abort capability for crewed version?

Dang.

Yes...100% abort capable from pad to orbit.  Discussed by Steve Lindsey.

Online adrianwyard

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Re: SNC LEO Space station
« Reply #18 on: 04/02/2021 01:22 am »
I'm glad to hear it. Do you recall any details? E.g. LAS to be integrated into body (major change from cargo version), or externally on stage adapter? Propellant?
The YouTube video is now private :-(

Any mention of Launch Abort capability for crewed version?

Dang.

Yes...100% abort capable from pad to orbit.  Discussed by Steve Lindsey.

Online adrianwyard

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Re: SNC LEO Space station
« Reply #19 on: 04/02/2021 01:26 am »
Is this the same as the (now private) YouTube video?
« Last Edit: 04/02/2021 01:27 am by adrianwyard »

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