Here's a very indepth and illuminating USN report on NGFS and battleship fire, with a full background on WWII on up NGFS effectiveness and systems, etc.
It's written by a USN Lt.Commander, and all his sources are documented:
http://www.globalsecurity.org/milita...t/1991/KMC.htm
It was written in 1991 just prior to the deactivation of the Iowas, and it's conclusion was that they should be retained.
Lots of very interesting data in the report.