Thanks, had a brain freeze today - http://www.yachtworld.com/boats/1998/J-Boats-J-90-2673910/Greenport/NY/United-StatesWas named Blackwing - not Redbird.Probably a prototype 5.5 or 6 metre. The interesting part is the mono-mast, reminds me of the test bed J/90 Hall spars had (Redbird).
Its for sale too!