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#120
by
Chandonn
on 15 Feb, 2007 14:39
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#121
by
nathan.moeller
on 15 Feb, 2007 14:40
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Get a look at Pad B...we won't see a bird on that complex for another year and a half or so.
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#122
by
Chandonn
on 15 Feb, 2007 14:42
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#123
by
Chandonn
on 15 Feb, 2007 14:43
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#124
by
nathan.moeller
on 15 Feb, 2007 14:47
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Approaching the turn to Pad B I see. Glad to know she'll keep on going!
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#125
by
Lee Jay
on 15 Feb, 2007 14:50
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nathan.moeller - 15/2/2007 8:33 AM
Lee Jay - 15/2/2007 9:24 AM
When the system rounds a corner, is this done in a smooth fashion by gently slowing down the inside track, or is it piecewise-linear (drive straight, stop, rotate in place, drive straight...)?
Just curious.
Lee Jay
It's a very slow turn. The front tracks on the crawler rotate very slowly and they take the turn like a car would. It takes a little while but she gets it done just fine.
Wow. I thought it was a tank-like turn. I didn't realize the fronts could rotate.
Thanks.
Lee Jay
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#126
by
Chandonn
on 15 Feb, 2007 14:58
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#127
by
Chandonn
on 15 Feb, 2007 15:00
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#128
by
Chandonn
on 15 Feb, 2007 15:01
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#129
by
Chandonn
on 15 Feb, 2007 15:03
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#130
by
nathan.moeller
on 15 Feb, 2007 15:06
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Let's just hope we don't have a roll-reversal today if you catch my drift
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#131
by
Jim
on 15 Feb, 2007 15:09
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Lee Jay - 15/2/2007 10:50 AM
nathan.moeller - 15/2/2007 8:33 AM
Lee Jay - 15/2/2007 9:24 AM
When the system rounds a corner, is this done in a smooth fashion by gently slowing down the inside track, or is it piecewise-linear (drive straight, stop, rotate in place, drive straight...)?
Just curious.
Lee Jay
It's a very slow turn. The front tracks on the crawler rotate very slowly and they take the turn like a car would. It takes a little while but she gets it done just fine.
Wow. I thought it was a tank-like turn. I didn't realize the fronts could rotate.
Thanks.
Lee Jay
The rear rotate also. hugh hydraulic cylinders push/pull the track assemblies to steer the crawler
You can see a cylinder in these post (3rd page of this thread)
http://forum.nasaspaceflight.com/forums/thread-view.asp?tid=6621&mid=112139#M112139the post links aren't working
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#132
by
Chandonn
on 15 Feb, 2007 15:10
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#133
by
rdale
on 15 Feb, 2007 15:10
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SimonShuttle - 15/2/2007 10:32 AM
STS-117's flight director is pretty sexy! 
Not saying I don't like attractive women - but I don't know if that's an appropriate post ;>
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#134
by
Lee Jay
on 15 Feb, 2007 15:11
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Jim - 15/2/2007 9:09 AM
Lee Jay - 15/2/2007 10:50 AM
nathan.moeller - 15/2/2007 8:33 AM
Lee Jay - 15/2/2007 9:24 AM
When the system rounds a corner, is this done in a smooth fashion by gently slowing down the inside track, or is it piecewise-linear (drive straight, stop, rotate in place, drive straight...)?
Just curious.
Lee Jay
It's a very slow turn. The front tracks on the crawler rotate very slowly and they take the turn like a car would. It takes a little while but she gets it done just fine.
Wow. I thought it was a tank-like turn. I didn't realize the fronts could rotate.
Thanks.
Lee Jay
The rear rotate also. hugh hydraulic cylinders push/pull the track assemblies to steer the crawler
It's great what you can learn on this site.
Thanks Jim.
Lee Jay
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#135
by
Chandonn
on 15 Feb, 2007 15:21
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#136
by
jacqmans
on 15 Feb, 2007 15:23
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NASA update:
02.15.07 - 8:19 a.m. EST
On a bright and sunny morning at Kennedy Space Center in Florida, Space Shuttle Atlantis left the Vehicle Assembly Building for the 3.4 mile journey to Launch Pad 39A. The shuttle resting atop the crawler transporter will make the approximate 6-hour trip to the pad -- the next major milestone for mission STS-117. First motion was at 8:19 a.m. EST.
Once Space Shuttle Atlantis is safely in place on the pad the payloads will be transferred into the orbiter's payload bay.
The launch of Mission STS-117 will be the first liftoff from Pad 39A in four years.
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#137
by
Chandonn
on 15 Feb, 2007 15:24
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There still seems to be some lag on the webcams...
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#138
by
Chandonn
on 15 Feb, 2007 15:26
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#139
by
Chandonn
on 15 Feb, 2007 15:27
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