Beausoleil is a 1979 Formosa 51 ketch. The Formosa 51 has a sister ship, the Hudson Force 50. Both are from a William Gardner design – originally in wood – back from the late 1930′s.
Here’s a few websites:
Force 50 and Formosa 51 Owners Group
Florida Sailing Charters Bahamas Sailing Charters: Banana Winds