I think that Ducimus stated someplace that if you are going to use some other boat you have to uninstall Narwhal first. This might be the reason at least in part. Can't find the thread right now, I think it was over at the forum. Found it Quote by Ducimus
"Yup. Works fine, just without the extra bells and whistles added by TMO. I loaded it up and ran over TMO. Dived, shot torpedo's , fired the deck gun, etc.
Just be advised, if you decide to not run the narwhal, disable the mod before you use any other boat, and all will be hunky dory.
It's in this thread:
http://forums.ubi.com/eve/forums/a/t...5/m/7041018348 Posted March 29.
Magic