Author Topic: LIVE: STS-120 Flight Day 6 - EVA-2 (Read 89922 times)

Felix · « **Reply #200 on:** 10/28/2007 01:22 pm »

Tani still trying to reconfig the MBSU bypass jumper

Chris Bergin · « **Reply #201 on:** 10/28/2007 01:23 pm »

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dawei - 28/10/2007 3:20 PM

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jarthur - 28/10/2007 11:18 PM

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dawei - 28/10/2007 8:10 AM

Is anyone clear what EV1 is doing underneat the MLI on Harmony? I have lost track. I believe he is removing something. But what?

He is removing a bunch of caps. 16 in total.

Yes. Agreed. But caps to what?

PAO only describe it as "some outfitting" on the node.

eeergo · « **Reply #202 on:** 10/28/2007 01:26 pm »

Another CBM flap cover open:

But he closed it again... why's that?

Felix · « **Reply #203 on:** 10/28/2007 01:27 pm »

Felix · « **Reply #204 on:** 10/28/2007 01:30 pm »

eeergo · « **Reply #205 on:** 10/28/2007 01:30 pm »

Scott near the Soyuz, working on the new Node.

There seems to be something floating between the cover and the CBM.

AntiKev · « **Reply #206 on:** 10/28/2007 01:32 pm »

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dotdk - 28/10/2007 9:51 AM

Can someone explain on what part of the SARJ the filings are? And any guesses what it could come from?

From what they were talking about (my connection here is slow and I can't get good full screen video) it sounded like it was on the bearing raceway. Bearings would generally be made out of steel which could explain the magnetism apparent. Not knowing anything about the types of bearings used in the SARJ, but assuming they're standard ball bearings (I have a hunch they could also be tapered roller thrust bearings), we could be seeing rubbing of the rings together, or cage to ring contact. Not sure. Maybe someone can chime in with more about the bearing design then I'd be able to give you more information about possible failure modes.

eeergo · « **Reply #207 on:** 10/28/2007 01:37 pm »

More connections completed inside the truss.

And Scott continues around the CBM covers.

psloss · « **Reply #208 on:** 10/28/2007 01:39 pm »

Ground wants to defer the RPCM work and do the Node 2 PDGF install...

dawei · « **Reply #209 on:** 10/28/2007 01:40 pm »

RPCM will be skipped for now and do PDGF first as it is higher priority. (Can't relocate Node 2 without this step complete).

eeergo · « **Reply #210 on:** 10/28/2007 01:40 pm »

Great view of Scott outside Harmony.

Discussing procedures for the PDGF task.

eeergo · « **Reply #211 on:** 10/28/2007 01:42 pm »

Scott heading to the airlock to get an APFR.

jarthur · « **Reply #212 on:** 10/28/2007 01:44 pm »

Did anyone know how far they have gotten on the node 2 outfitting? there was supposed to be an electrical connection that I don't know if they've gotten yet. Also, did they get all 4 pip pins removed and the zenith ACBM petal launch restraints?

DaveJ576 · « **Reply #213 on:** 10/28/2007 01:50 pm »

When the astronauts make a long transit from one point to another, are they still continuously tethered? If so, how do they manage the long tethers?

eeergo · « **Reply #214 on:** 10/28/2007 01:52 pm »

Yes, they have long deployable tethers. They seem to be made of some kind of metallic wire, and I suppose during training they're instructed how to manage them so that they won't tangle or get stuck.

eeergo · « **Reply #215 on:** 10/28/2007 01:53 pm »

Now taking a break and configuring some tools for the PDGF installation task.

ShuttleDiscovery · « **Reply #216 on:** 10/28/2007 01:54 pm »

They don't have to be tethered at all times, they can just pull themselves around using handrails. If one does float away without a tether, they have a pack called SAFER on theeir backs which can move them back.

DaveJ576 · « **Reply #217 on:** 10/28/2007 01:55 pm »

On submarines, we have a safty track that runs the length of the deck. When surfaced, we can attached a tether to a harness and walk the length of the deck without detaching. I'm wondering if there is something similar to this on the exterior of the station.

DaveJ576 · « **Reply #218 on:** 10/28/2007 01:57 pm »

When Dan was transiting back to the airlock to retrieve the 2nd camera, they had Scott meet him halfway so he would have to change out his tether. That is what prompted me to question the tether config.

MKremer · « **Reply #219 on:** 10/28/2007 01:58 pm »

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ShuttleDiscovery - 28/10/2007 9:54 AM

They don't have to be tethered at all times, they can just pull themselves around using handrails. If one does float away without a tether, they have a pack called SAFER on theeir backs which can move them back.

At least one tether is required at all times, even when moving (why the main ones are so long with different lengths). An additional tether is required at any worksite.