Re: C&S "Three Bent Tanks" -- Riverview??

Posted by John Greenly on
URL: http://c-sng-discussion-forum.254.s1.nabble.com/C-S-Water-Tank-at-Blackhawk-and-the-Three-Bent-Water-Tanks-tp11993p12081.html

Jim,

Starting with your third Riverview photo, the geometry is difficult because of the skew angle of the view.  The height of the 27 ft boxcar side is the easiest known dimension to use as a scale factor, and with this I get the tank diameter and height as 16.5' x 12.5' which comes out to just about 20,000 gal.  Note that this is a tapered tank.  The first photo of the tank behind the engine gives a similar result, but it's also a difficult one, it would take extensive calculations to scale the depth of the scene precisely.  I can make a pretty good estimate by using the fact that the tender is taking on water, though, and thus using the standard 9' dimension from tank feed to the track centerline, I get that the tank is a  small amount larger than 16' x 12', so that is consistent with the first result.

The second photo of the later tank is a tough one.  Best I can do is that the view is fairly nearly side-on to the spout.  Then I can scale again from an assumed 9' length of spout, giving a 20' tank diameter and about 15' height, which is indeed consistent with your suggestion that this is a standard 30,000 gal tapered tank.

John