02-15-2019, 08:03 PM
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BAR
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Join Date: Dec 2007
Location: Needville and Shiner, TX
Posts: 6,134
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Quote:
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Originally Posted by Earl
Take a look at the photo link in my prior message and a second look at your photos (I have similar photos of those same RCS quads at KSC myself).
The quad *boxes* themselves are silver...that 'top of the box' white you see is the 'printing' I mentioned above. I think it might actually be a label applied to the top of the quad box.
Earl
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Yep hard to go by museum stuff, particularly the ones that have been on outside display... the get corroded or paint or coatings become discolored or peel and get painted over with "whatever is available" or "whatever they can afford" and that's that... particularly years ago when keeping it "as close to original as possible" wasn't any particular priority...
The writing appears to be a chart that helps with wiring and orientation for translation... the motors had to be wired correctly to fire in the appropriate pairs or orientation to provide the required rotation of the vehicle in the +/- X, +/- Y, and +/- Z axes, as well as thrusting forward and aft, and translating the spacecraft up/down and side to side in those planes...
Later! OL J R 
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