IPB

Welcome Guest ( Log In | Register )

8 Pages V  « < 3 4 5 6 7 > »   
Reply to this topicStart new topic
STS120, will be the 120th Shuttle flight
David
post Nov 2 2007, 12:40 AM
Post #61


Member
***

Group: Members
Posts: 809
Joined: 11-March 04
Member No.: 56



QUOTE (ollopa @ Nov 2 2007, 12:06 AM) *
I'm sure I'm not the only member of this forum who's old enough to remember the last time U.S. astronauts set out to fix a balky space station solar array !


I am old enough to remember that, but in fact I don't -- most likely because I was too busy playing with blocks at the time. blink.gif I didn't start getting interested in space until about 1976. But I did know about the event (from about 1976, again) and it was the first thing that came to mind when I saw that tear in the panel...
Go to the top of the page
 
+Quote Post
nprev
post Nov 2 2007, 01:04 AM
Post #62


Merciless Robot
****

Group: Admin
Posts: 8783
Joined: 8-December 05
From: Los Angeles
Member No.: 602



I remember... smile.gif ...I was ten. Confess I didn't follow it too closely because I ws spending a summer in Bremerton, WA with my relatives & having a ball with discovering marine life (not much of that in Montana)...The videos are great, and you're right. The adaptive nature of humans, our dexterity, and our on-site analysis capabilities cannot be underestimated in importance for complex repair activities. We got the robots beat for at least 20 years or so... rolleyes.gif


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
dvandorn
post Nov 2 2007, 04:41 AM
Post #63


Senior Member
****

Group: Members
Posts: 3419
Joined: 9-February 04
From: Minneapolis, MN, USA
Member No.: 15



Well, the last time we tried to fix a space station solar wing, it was a mite bit different...

First off, we had only a few tens of hours of experience in zero-G EVA at that time, and while we sort of basically knew the need for footholds and handholds, we didn't know as much about how you had to anchor yourself properly in order to apply force through your body. Which is how Pete Conrad ended up flying, in his own words, "ass over teakettle" after he used his legs to exert pressure on a tether that was hooked to the end of the solar panel. Panel breaks free, the line goes slack, and Pete flies off the surface of the Skylab with all the power his legs had mustered.

Good thing the umbilical attaching Pete to the airlock was strong. He hauled up to the end of his line, stopped suddenly, and after positioning himself he pulled himself back along the umbilical.

Problem is, there were no TV cameras pointing at the right places to truly capture the event! We sort of saw Pete's legs go flying out of the picture when the SAS deployed, but only have his own colorful telling of the story for the details of what followed...

BTW -- I was 17 years old and followed the Skylab flights quite closely. Oh, for that amount of enclosed space again within a habitable volume! Nothing else has ever come close. (And if you've ever visited the backup Skylab, on display at the NASM, you'll realize that it wasn't all THAT huge in and of itself...)

-the other Doug

p.s. -- not only do I remember Skylab, I actually submitted a proposal for the Skylab student experiment program. It wasn't accepted, alas -- I was proposing studying cancer growth in mice in a microgravity ennvironment, and the hassles of keeping the mice were more than NASA wanted to deal with for a "simple" student experiment. But as I say -- I not only remember it, I tried to get an experiment flown on it! DVD


--------------------
“The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
Go to the top of the page
 
+Quote Post
ddeerrff
post Nov 2 2007, 09:45 PM
Post #64


Junior Member
**

Group: Members
Posts: 83
Joined: 19-April 05
Member No.: 251



In regards to the spacewalk to fix the snagged panel, news reports are stating the astronaut:
"runs the risk of being shocked as he tries to fix the damaged panel."

Shorting something out and getting a few sparks I can see, but the idea of there being enough voltage there to be a shock hazard - particularly through the suit - is surprising to me. What buss voltages are they running there?
Go to the top of the page
 
+Quote Post
djellison
post Nov 2 2007, 09:46 PM
Post #65


Founder
****

Group: Chairman
Posts: 14432
Joined: 8-February 04
Member No.: 1



That's tabloid sensationalism again. They had a senior EVA guy from the astronaut office at the press con yesterday saying that they're taping up any metal parts of the suit, they're using insulated tools - there's no chance of getting a discharge.

Doug
Go to the top of the page
 
+Quote Post
jmjawors
post Nov 2 2007, 10:15 PM
Post #66


Member
***

Group: Members
Posts: 191
Joined: 20-November 06
From: Saint Louis
Member No.: 1376



QUOTE (ddeerrff @ Nov 2 2007, 04:45 PM) *
In regards to the spacewalk to fix the snagged panel, news reports are stating the astronaut:
"runs the risk of being shocked as he tries to fix the damaged panel."

Shorting something out and getting a few sparks I can see, but the idea of there being enough voltage there to be a shock hazard - particularly through the suit - is surprising to me. What buss voltages are they running there?


And at today's presser it was pretty flatly stated that an astronaut "cannot" get shocked from this. A lot of very unusual and unlikely things would have to happen in tandem for a shock to occur. That said, it's still "no-touch."

In just a tad over 12 hours, this things starts!


--------------------
- Matt
Go to the top of the page
 
+Quote Post
ElkGroveDan
post Nov 2 2007, 11:31 PM
Post #67


Senior Member
****

Group: Admin
Posts: 4763
Joined: 15-March 05
From: Glendale, AZ
Member No.: 197



NASA TV
Attached thumbnail(s)
Attached Image
 


--------------------
If Occam had heard my theory, things would be very different now.
Go to the top of the page
 
+Quote Post
ElkGroveDan
post Nov 2 2007, 11:34 PM
Post #68


Senior Member
****

Group: Admin
Posts: 4763
Joined: 15-March 05
From: Glendale, AZ
Member No.: 197



replaying yesterday's tour
Attached thumbnail(s)
Attached Image
 


--------------------
If Occam had heard my theory, things would be very different now.
Go to the top of the page
 
+Quote Post
Shaka
post Nov 3 2007, 12:42 AM
Post #69


Senior Member
****

Group: Members
Posts: 1229
Joined: 24-December 05
From: The blue one in between the yellow and red ones.
Member No.: 618



The repair procedure has now been published: Yes, CUFFLINKS!
Dam', you've gotta love these techies. Of course, if I was up there, the procedure would founder on the aluminum cutting step. I hate tin snips, and can never cut a straight line with them. I hope it's easier in zero G.

Good Luck, Crew! Win one for the Gipper. cool.gif


--------------------
My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
Go to the top of the page
 
+Quote Post
nprev
post Nov 3 2007, 02:24 AM
Post #70


Merciless Robot
****

Group: Admin
Posts: 8783
Joined: 8-December 05
From: Los Angeles
Member No.: 602



blink.gif ...McGuyver was obviously a NASA dropout. Those guys devised (and documented, complete with pics!!!) this procedure & walked the crew through a test build that fast?!?!?!!!

I'm just a guy with an engineering degree; those guys are ENGINEERS!!! Boy, is my tax money well spent on their undoubtedly very inadequate salaries!


--------------------
A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
Go to the top of the page
 
+Quote Post
Stu
post Nov 3 2007, 11:14 AM
Post #71


The Poet Dude
****

Group: Moderator
Posts: 5551
Joined: 15-March 04
From: Kendal, Cumbria, UK
Member No.: 60



EVA in progress... beautiful pictures on NASA TV... smile.gif

Attached Image


--------------------
Go to the top of the page
 
+Quote Post
paxdan
post Nov 3 2007, 11:26 AM
Post #72


Member
***

Group: Members
Posts: 562
Joined: 29-March 05
Member No.: 221



yeah i'm watching too
Go to the top of the page
 
+Quote Post
Stu
post Nov 3 2007, 11:34 AM
Post #73


The Poet Dude
****

Group: Moderator
Posts: 5551
Joined: 15-March 04
From: Kendal, Cumbria, UK
Member No.: 60



Scott sounds like he's having a ball up there... very relaxed and laughing about the many "dangerous things to look out for... 'Not sure there's much left to touch!' he replied just now, only to be told he was only half-way thru the list! laugh.gif


--------------------
Go to the top of the page
 
+Quote Post
Stu
post Nov 3 2007, 11:51 AM
Post #74


The Poet Dude
****

Group: Moderator
Posts: 5551
Joined: 15-March 04
From: Kendal, Cumbria, UK
Member No.: 60



OMG... look at that...

Attached Image


ohmy.gif ohmy.gif ohmy.gif


--------------------
Go to the top of the page
 
+Quote Post
paxdan
post Nov 3 2007, 11:56 AM
Post #75


Member
***

Group: Members
Posts: 562
Joined: 29-March 05
Member No.: 221



get the camera working scott
Go to the top of the page
 
+Quote Post

8 Pages V  « < 3 4 5 6 7 > » 
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 27th April 2024 - 11:49 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member.