Originally published 16.10.2017 on the IYRS blog.
Allow me to begin with a brief tangent. They say there are two kinds of people in the world: those who believe there are two kinds of people in the world and those who don’t. This is my second-favorite oversimplification of the vast array people on earth. My favorite oversimplification is Chaos Muppet/Order Muppet. Kermit, orderly, soft-spoken, and dependable, is the Platonic ideal of an Order Muppet. Animal and the Swedish Chef, on the other hand, are perfect pictures of Chaos Muppets. They are obsessive and messy and wild and leave trails of broken drumsticks or onion halves in their wake.
When I was young, I had the ambition to be a Chaos Muppet. I wanted to be wild and fun and unpredictable. (I probably wasn’t as much of any of those things as I thought I was.) As I got older and crankier and wearier, I tried to tell myself I was an Order Muppet through and through. The truth, as I’ve finally come to realize in the last couple of years, is that I—like most of us in any binary system—don’t fit neatly into either category. I am simultaneously Chaos and Order, or sometimes more one than the other, depending on how I feel and/or how many damn kids are on my lawn. I try to embrace Chaos as much as possible, because in general I think it’s good to stay on your toes. But, I recognize the importance of Order when there are things that need to be measured or institutional hoops through which I need to jump. Rather than be stuck at one pole or another, I prefer to bounce back and forth to different positions on the Continuum of Muppet Alignment as the task at hand requires.
Now that we all understand the Muppet Grand Unified Theory, I feel that we’re prepared to move on to a discussion of the lofting process, which we in year one of the Boatbuilding and Restoration program finished late last week. Lofting, like laying out joinery or almost anything else that I’ve encountered so far at IYRS, is an exercise fit for an Order Muppet.
Lofting
Lofting is the process of creating a full-scale drawing of a boat from three angles. We turn the boat upside down and level it, then line it up perfectly on a centerline by hanging plumb bobs from the stem and transom. When it’s situated we screw it down and lock it in place with plywood cut out over the rub rails and fastened to the stand. Then we build a measuring jig over it. Just two pine planks, squared and leveled and gusseted together, supported on the other side by another upright plank and a couple of F-clamps.
The boat is sliced into five stations, with the lines drawn on the floor. We set the jig at station one, double check for plumb and level, and fix it firmly upright. We cover the jig in paper and set a pointer stick on the keel, the rabbet, the sheer, and on each plank of the boat, marking the paper with a pencil, recording the measurements in this 19th-century way. We measure only one side—the assumption being that a boat is symmetrical—in five stations before moving on to a related process on the transom and the stem. Seven places to measure, eight or so measurements at each place. Each measurement gives a data point that we lay out on a full-size grid on the floor. After we’ve laid out all the points from a given station, we connect the dots with a wooden batten and fair the lines.
Fairing
We are taught to trust our eye in fairing a curve. I love this about boat building so far. If a line doesn’t look “fair” or “sweet” when it’s laid down on the lofting boards, then we should assume that there was a problem with our measurement or that the boat—a restoration job, after all—has twisted or bent or otherwise come out of shape. “These boats want to be fair,” Joel told us early in the lofting process. Hans went on to say that after a year or so of boat building our eyes will zero in on flat or hollow lines on anything from a Ford F-150 to a new iPhone. We will become, he maintains, critics of all lines.
As we faired our curves, I saw more clearly the role of the craftsperson in this trade. A trained eye can zero in on a flat spot, but no two sets of eyes are guaranteed to have the same interpretation of the problem. Last week Joel stopped at my team’s station to help us fair the bottom of keel line. Hans came by after a few minutes and offered his perspective. He and Joel then good-naturedly bickered for fifteen minutes, and ultimately Hans solved what he saw as the problem by resting a hammer against the thin wood batten after it had already come off the board, thereby adding a bit of extra curve to the back of the line. Hans was much more satisfied with the curve with that minor adjustment, and we re-drew the line. An instant later he found another flat spot near where the stem joins the keel, and he warned us of the dangers of looking at a curve with too much perspective. “Once you go past the yellow line,” he said, referring to the end of the plywood platforms on which we’re lofting and building our boats, “it’s over. You’re in hell.”
We may have been in hell, but that hell yielded a line that was, to use the technical terms of this new trade, sweet and fair. By simply pushing up on the end of the batten, Hans and Joel helped us round the curve and recognize how we as builders will have an impact on the way a boat looks. Even a boat like the Beetle Cat, so strictly regulated in its form by Beetle Inc., will vary somewhat depending on the eyes and hands that loft and plan and ultimately build or restore it.
Offsets, or, What kind of Muppet am I?
I heard mention of the “table of offsets” only a couple days after arriving to IYRS. I had no idea what it meant, but I liked the feel of the words. They sound geometrical and architectural, like something an engineer would say. It sounds like something far enough out of my wheelhouse that I was going to have to struggle to put it together. It turns out, however, that a table of offsets is simply a list of measurements that explains where lines intersect on a grid. So, while there were plenty of struggles laying those lines out in three views on the floor, once they were finished it was a relatively simple process to create the table.
We marked the intersections on thin strips of wood—one for each major line in the body plan view, which looks at the boat from straight on—and then set the sticks against a long ruler, calling out intersections in feet-inches-eighths. There were only a few minor hiccups, and within an hour or so we were finished lofting, with all the relevant information recorded on paper as well as on the lofting boards themselves. The next step will be to spend one day each week in the drafting room, creating first a lines drawing and then a construction drawing of our boat as well as a half model of the shape of the hull.
Lofting is like a 3D puzzle, where making any change in one view requires further changes in the others. It can be frustrating at times, but when a line comes out fair and clean against the white of the boards the frustration and sore knees seem worth it. It’s a relatively simple process, I’ve found, where meticulousness and the order of operations make all the difference in the world. I try to be meticulous in my daily life, but occasionally my nature is more Swedish Chef than Kermit, and lofting is an important reminder that method is at least sometimes more important than madness.