I'll have to ask the "admiral", she surprised me with it [img]/images/graemlins/smirk.gif[/img]
It's a 13" Edson wheel.
Edson wheel link
I don't know if he stocks them but you might want to drop "yachtjim" an email at
Byownerelectronics (his banner runs on this site) He might be able to get them for you.