Thanks both, Ashley it has an 800 size motor in it on a 50 mm prop, 4mm short shaft (8 inches or so)
the mechanical controller was so I had reverse but settled for a jeti 25 amp esc with froward only.
It has been checked in the bath several times Bob but only just fits!
i even had it running this morning before i took it out and all was fine (or so I thougt).
I thought boating would be less hassle than flying but I guess i will get there.
As for the dolls not sure yet as it still isn't finished as i thought it could do with some seafaring tests first.
Got to laugh though as i had been nagging the wife for hours before i took the boat out.
Regards Pete.