I think he was referring to the Hardcore Hurricane, which was apparently a 16' boat (listed here), but there may be a connection to the Hurricane 6.5... Here's an article that indicates that the Hurricane 6.5 was aka the Roake 21 (and links to those photos here at catsailor). I guess this is the one Mary was referring to.
Edit: Indeed, one of the other images confirms this connection...
