Thanks Tophatter You're the best this is why I Love WAB since we have very knowledgebale people here.
On an unrelated note...We've had quite a surge of miltary and defense professionals lately its been hard to keep track, WAB is really growing I'd say this is probabaly the best board in terms of military knwoledge even superior to the like sof defencetalk, and f-16.net IMHO.
EDIT:I also found out that the Japanese Kadai class got sunk more times than they got kills LOL Not to mention the waters in which the Yorktown was in were highly cluttered from the debris which probabaly accounted for why it wasn't detected.