The dimensions were taken from a book that highly detailed the building of a real Cat Boat.
The hull is plank-on-frame with epoxy and glass cloth as the final surface. A separate and detachable fin keel was used for sailing of the centerboard model.
Radio controls were a Hitec sail winch [HS-785HB] and one servo for the rudder with a 2 channel JR transmitter.
Copying the book plans, scaling them down, and construction took up the winter of 2006/2007. The model is sailing better than anticipated on a local lake in Langhorne, Pennsylvania.
You have done a great job in the scratch build on it .
Well done " Albert... 👍