160817 Peter Shepherd combined toc & text

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A drawing of the profile of Michel Selig with detail of the components of the backbone, which is thus more properly called a construction plan. He then draws a number of equally spaced vertical lines on the profile (the"stations") which represent vertical sections of the hull. Similarly, he does the same thing horizontally (the "waterlines") which represent horizontal sections of the hull. Three views of Michel Selig: 1.) upper left - the station profiles, viewed from the stern, are superposed, 2.) upper right - ditto, but viewed from the bow, 3.) the waterlines of the starboard half of the boat, viewed from the bottom, are superposed. The results remain a two dimensional representation of the hull. One can combine the stations and
waterlines on a profile view, thus creating intersections of the stations and waterlines. To add a third dimension of the hull, the architect defines a plane which cuts the hull longitudinally (the "centre plane"). (The waterlines shown above are drawn reative to the centre plane.) He then defines the distance between the centre plane and each intersection of a waterline and a station. This distance is called an "offset". Once he has done this for each intersection, he has in effect defined the hull in three dimensions. The set of these offsets is called a "table of offsets". Our 800 points were in effect a table of offsets for both the port and starboard sides. - Two fundamental errors My architect should have told me to immediately convert the take off data into a set of plans and a table of offsets. This would have led to the discovery of the inevitable errors in our measurements which could then have been corrected by re-measuring the erroneous data. He didn't and I merely set the take off data aside. I also didn't record rigourously precise data defining the profile of the boat. This would haunt me later b. Condition - Lack of stiffness The condition of the hull was abdominal. I could move the transom 20 cm. to the left and right. The ballast keel had been removed. Planks were missing. The wooden keel and the deadwood below all seemed rotten. - Floors When a boat heels, the ballast keel would like to stay in a vertical position, thus separating itself from the hull. "Floors" are used to counteract this force. They are metallic. They are firmly attached to the ballast keel and then they extend upward alongside the inside of the hull distributing the force of the ballast keel on the hull. Between the wooden keel and the ballast keel, there were a number of shims which adjusted for the difference in the angles of the two. These are called "deadwoods".
Page 1 and 2: Construction of the classic Six Met
Page 3 and 4: a. Slaloming through the knots 26 b
Page 5 and 6: d = a measurement of how much the h
Page 7 and 8: As a sop, the conference included a
Page 9 and 10: almost exposing the rudder, to lowe
Page 11 and 12: Michel Selig, then named K 75 Joann
Page 13 and 14: Shored up with movable props After
Page 15: Establishing reference verticals at
Page 19 and 20: Holes of rotten wood where the floo
Page 21 and 22: Ribbands of Nirvana - the vertical
Page 23 and 24: Lofting platform for laying off the
Page 25 and 26: Cardinal II, built by the author at
Page 27 and 28: I wanted a light wood which would b
Page 29 and 30: The photos below show the cumulativ
Page 31 and 32: the sternpost c. Drawing station li
Page 33 and 34: emove the drill from the bit. Norma
Page 35 and 36: Gluing the forward part of two half
Page 37 and 38: Aft view of two pairs of half lifts
Page 39 and 40: The use of bridges on the inside of

160817 Peter Shepherd combined toc & text

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