The Blue Moon's hull being painted, I relaunched her, splashing half a bottle of Blue Moon beer on her bow (no need to waste the whole bottle!)
Then Bob and I motored her down to her temporary new home -- a dock in the Steinhatchee River. With her long bowsprit, the slip was a bit short for the Blue Moon, so we had to back her in. NOT an easy thing to do with her long keel and small motor.
The motor did manage to get her moving backwards... slowly... but turning was a whole other thing. Fiddle with the rudder as much as we might, her long, deep keel kept her moving in a straight line. There was no way I as going to be able to back her into the slip, even without the current and cross wind.
If I'd had Cabin Boy with me, I would have warped the Blue Moon into the dock, neat as you please. But being dingyless, we had to depend on the kindness of the 5 or 6 bystanders who had gathered on the dock to comment and watch the show.
It wasn't elegant, but we eventually manhandled the Blue Moon into her slip, without scratching her lovely new paint.
Blue Moon in her temporary berth
photo jalmberg
I still need to paint the deck -- with a combination of white and that nice Bristol Cream used on the rail and waterline -- but I was out of time. I needed to get back to New York where Helena, kids, and business concerns all needed attention.
So, leaving Blue Moon tied up and in the capable hands of the marina (with Bob available to check up on her occasionally), I headed back to the frozen north and Cabin Boy.
The next step in building Cabin Boy was to plane the chine logs flat, so a straight edge (in lieu of a bottom plank) lies flat on the chine logs and keelson.
Before planing, the chine logs are edged inwards (see photo, below). A straight edge (2x4) doesn't lie flat on the chine log. It sits on the chine log's edge. I needed to take off that edge.
Straight edge (top) sits on edge of un-planed chine log
photo jalmberg
The right tool for this job was my nice wooden plane. I didn't take a lot of time over this. I just planed the chine logs by eye so they 'looked' flat, and then checked then with a straight edge (the edge of a 2x4.)
Planing the chine logs so they are flat and level with the keelson (in background)
photo jalmberg
And here's how one of the chine logs look after planing. See how the straight edge now sits flat on the chine log. It's not a lot of work. We're talking about 10-15 minutes with a hand plane. Easy peasy.
Chine log planed flat
photo jalmberg
That done, the next step was to 'line off' the hull.
Now, if I'm honest, I have to confess that I didn't really need to plane the chine logs before lining off the hull. I was just procrastinating, because I really didn't know how to tackle this 'lining off' thing.
Lining off is the process of deciding where the planks on your boat are going to go. It is one of those "more art than science" parts of boat building. One of those chapters where the Boat Building Books all go fuzzy with talk like "if it looks right, it is right".
Okay, fine. I get that. That's how you know when you are done. But how do you begin? I had no idea.
Like many things, you just need to start and see how it goes. I've often noticed that you never really know how to do something until you've done it. It's a chicken-and-egg problem, and the only way to crack it is to start, even though you don't know how to start. You just need to jump in and start working at it, trusting (hoping?) it will all become clear in the end.
To get rolling, I noticed that Cabin Boy's plans included a profile drawing that showed an exterior view of the 4 planks. This was a good clue. The profile did not show the whole plank -- in particular, it did not show the parts of the planks that were overlapped. This is a lapstrake (or clinker) design, remember.
However, I reasoned that if I allowed a 'standard' overlap of, say, 1", then it would be possible to measure the width of the planks right from the profile drawing, using my architect's rule.
For some reason, this process was extremely time consuming. Mainly because I made every mistake possible, including forgetting that the profile plan was right side up, and the boat was up side down. Yes, I measured the dimensions of the shear strake (the plank at the top) and used them to measure the garboard plank (the plank at the bottom). Luckily, I wasn't holding a sharp tool when I discovered this error. Duh!
However, after numerous errors and false starts, I had the 'first draft' of my lines, laid out with battens on the forms. Whew!
(By the way, I still haven't found a way to cut battens that I'm satisfied with. I'm using my bandsaw to cut them out of reasonably straight-grained white pine, but its not easy to cut a perfectly straight, 8 foot line, so my battens are full of waves and bumps. I know they look straight in the pictures below, but believe me, they are not.
If you have a system for cutting nice, straight battens, please share it with me by leaving a comment below, or emailing me at john@unlikelyboatbuilder.com.)
Lining off by science and mathematics... a good first draft
photo jalmberg
Anyway, I call the above 'first draft' because this is as good as I could get the lines using science and mathematics. And it wasn't quite good enough. If you study the photo above carefully, you'll see what I mean. The lines just aren't right.
Yes, I measured the profile plan as carefully as possible, and I laid out the measurements using as much precision as possible. But, apparently, science and math can only get you so far when lining off. I needed to turn to art.
By 'art', I mean eye. I had finally reached the point where the Boat Building Books made sense to me. The only way to finish the job was to move the battens around until they 'looked' right.
Amazingly, this was much easier than I expected. After pulling a few tacks and letting the battens 'flow' around the molds as they wanted to do, rather than forcing them into my mathematically 'precise' locations, they suddenly looked 'right'.
Lining off by eye... better!
photo jalmberg
So, once again, I have to report that olde-time Boat Building Masters knew what they were talking about. Your eyes and your battens will tell you what to do if you just give up a bit of control and let them speak. Don't fight them.
Tomorrow, another frighting task: spiling the planks. I have no idea how to do this, but apparently I'm not going to let that stop me.
Onwards!
Next Episode: A Garboard Tragedy - Act 1
Get Notified Automatically
I hope you're enjoying "The Unlikely Boat Builder" as much as I enjoy writing it. Some people have asked for a way to be notified automatically when I post new episodes. I've figured out how to do this, so if you'd like to be notified, please click on the link below. I promise I'll never spam you (and Google will have my head if I do.)
Thanks for your interest!
-- John







6 comments: