Board Thread:General Discussion/@comment-17703786-20160216212926

Apparently, according to this, which is a listing of all of the trophies available on PSN for the Kancolle Kai version. The name itself is written in katakana, but should be this one:

'''アイオワ

アイオワ級戦艦一番艦「アイオワ」が艦隊合流！'''

Her name doesn't appear to be listed as "USS Iowa" though, but instead just "Iowa". 