Request Dual-Keel Space Station addon (STATION REQUEST)

[DaveS]

Oh So at the end is this structure. And some where would be a tunnel?

The entire pressurized section would be in the middle of the truss. Just make the section highlighted in red and put a standard shuttle airlock in the center and it should be close enough.

 

[gattispilot]

Watching the video about freedom. I notice the truss are not cubes but hexagon?

 

[LadyCroussette]

Watching the video about freedom. I notice the truss are not cubes but hexagon?

Seeing as the ISS is Space Station Freedom and Mir 2 merged together, it make sense that the real Freedom truss segments - if the station had been launched - would have been very similar in shape and design (if not identical) to those used on the International Space Station. The cubic truss could just be an earlier design before they were changed to a more structurally sound design.

 

[gattispilot]

Seeing as the ISS is Space Station Freedom and Mir 2 merged together, it make sense that the real Freedom truss segments - if the station had been launched - would have been very similar in shape and design (if not identical) to those used on the International Space Station. The cubic truss could just be an earlier design before they were changed to a more structurally sound design.

So cubes or hexagon for the truss

 

[DaveS]

Slightly hexagonal as shown in this NASA ISS stage 11A(post STS-113) configuration illustration. Note the lack of MLI on the truss structures so you can see the actual framework of the trusses. in RL, they're covered in white MLI for thermal control reasons. Last photos show the actual S0 truss (center segment mounted directly to the Lab Cradle Assembly of the US Lab) without its MLI.

 

[DaveS]

 

[gattispilot]

So should I use the shape of s3 and use it for the long truss. I wonder what the spacing was?

 

[DaveS]

So should I use the shape of s3 and use it for the long truss. I wonder what the spacing was?

The first three segments on either side of the center should share the hexagonal shape of the S0 truss. The segments outboard of the two Solar Alpha Rotary Joints (SARJs) on the S3/P3 segments, should have a box design to accommodate the Integrated Electronics Assembly (IEA) of each power channel truss (S4/P4 and S6/P6): https://en.wikipedia.org/wiki/Integrated_Truss_Structure

 

[gattispilot]

OK. I wonder if I should just use the ISS_HD trusses.

So what is the differences between Freedom and ISS. They seem like the same think. Same Trusses,.....

 

[DaveS]

OK. I wonder if I should just use the ISS_HD trusses.

So what is the differences between Freedom and ISS. They seem like the same think. Same Trusses,.....

No difference. ISS is just the Soviet "Mir 2" and the 1980's version of the ISS which was called "Space Station Freedom". SSF was ISS, just without the Russian contribution which was a Clinton Administration proposal to keep Russian engineers from taking jobs in problematic countries such as Iran and North Korea and assisting them with their ballistic missile programs after the Soviet Union fell in 1993. At that point the newly formed Russian Federation had serious cash issues, which eventually led to NASA essentially buying the Zarya FGB through an arrangement with Boeing, the primary ISS contractor, to keep the program on track. That's why it sports a US flag along with a Russian one, it's a US owned but Russian controlled module.

 

[Urwumpe]

Also, the arrangement solved some early assembly problems for space station freedom, the beginning of the construction and its first module had never been precisely specified and was still open to be completed for a CDR. Also the resupply of vital goods with the Space Shuttle was not really reliable and carrying fuel to the station even essentially ruled out. With the Russian DOS modules, it was possible to be ready for permanent habitation after a few launches and had a pretty reliable Progress vessel for carrying the critical goods and fuel to the station.

 

[gattispilot]

Ok I got the truss and radiators, solar panels from ISS_HD. And added the modules.

On the dock built the lower frame. I think there should be a upper frame. And add a tube bent to the shuttle and a hatch?

But what about the dual keel? Use this and add the top and bottom using truss. but shape? And I think the Dual Keel was wider?

 

[gattispilot]

On the docks. So for the shuttle no external airlock and ODS, right?

SO the shuttle would dock to the trunnions and Keel, right?

Maybe this for the structure. It looks like there are 2 hatches?

But I wonder about that long structure. It looks like it would hit the shuttle?

 

[gattispilot]

And then there is the propulsion systems.
"
Propulsion System
A hydrazine-fueled propulsion system keeps Freedom
at a safe altitude. Because atmospheric drag forces
gradually reduce Freedom's altitude, it must be peri-
odically reboosted by the propulsion system to a high-
er altitude. The propulsion modules are mounted on
the truss."

 

[gattispilot]

On the dock maybe like this?

 

[gattispilot]

Maybe like this. Of course only Shuttles may dock

 

[gattispilot]

We get this. I need to modify the frame work and extend the airlock hatches.

I will just add some modules for propulsion.

I wonder about the orientation. In the drawing the radiators are 90 degrees of the solar panels. But in the ISS model they are in the same plane?

 

[MarkWatney2015]

Those Freedom docks look way more complicated than the actual ODS that flew during Mir and ISS missions

 

[DaveS]

Those Freedom docks look way more complicated than the actual ODS that flew during Mir and ISS missions

The system that actually ended up flying was really just an adaptation of the ODS designed for the Soviet orbiters to dock to Mir's Kristall module which was the only module that used APAS to receive visiting vehicles. They just took the Soviet ODS and stuck it on a standard orbiter airlock that lived in the payload bay rather than inside the orbiter's crew module on the middeck. Atlantis flew with both her original internal airlock and the new External Airlock for all of the Shuttle/Mir missions, incurring a bit of mass penalty on those missions.

 

[gattispilot]

Trying to figure the orientation compared to artist drawing.

Since we are using the concept dock. Should we use the Quest airlock?

I think the cupola is in a different spot?