I've noticed that units that don't have radar checked in the editor, can see two squares away regardless.

They can under certain circumstances, mainly on high ground (hills and mountains) or over water. Were either of these the case?

In addition, you can see hiulls and mountains further.

This is the second thread by the same person on this topic. The question has already been answered here:

http://forums.civfanatics.com/showthread.php?s=&threadid=68546

No, my ships were in the open ocean. One ship, a battleship had radar checked, the destroyer didn't have radar checked and could see two squares. The destroyer was about 5 squares away from my battleship.

Nevermind, looked at my other thread and got the reply. BTW, I first posted in the other forum, only to realize I should have psoted it here, under bugs, or in my case, "assumed bugs". :rolleyes: