



















soon
Details of paintings, mostly unmarked, from the New Bedford Whaling Museum. There seems to be a great deal of variation in colors, strakes, build and conformation in boats from different builders as well as in the imaginations of the artists. The last boat looks very much like the whaleboat in the museum's collection.


Presentation: “Efficient Catboat Sailing Skills”, by Pete Peters (Lecture 1 of 2)
- Key parameters:
o Length
§ Hull speed = √(Length in Feet) x 1.34
§ Disproportionate energy needed to exceed hull speed
§ “make boat as long as possible”
o Weight
§ Lighten as much as possible
§ Inertia hinders acceleration
§ Greater wetted surface = drag
§ Center as much as possible
§ Remove water in the boat – bail!
o Lift
§ Bernoulli’s principle – air moving over curved surfaces
§ Lift off wind
§ Lift found in sail, centerboard, rudder
§ Rudder – a little weather helm generates lift
o Balance
§ Center weight in boat
§ Maximize waterline, maintain level (fore/aft and port/starboard) by shifting crew and content weight.