Tolman Skiff, Nelson Jumbo: Day 61 - Taping Chines

chine_tape1.jpgI was going crazy wanting to work on the boat but the weather has been in the 40's and 50's, too cold for epoxy to cure. Many of the jobs inside the boat were small enough that I could heat up the area with a couple of heat lamps but I had to do the chines first. Today I broke down and bought 4 more heat lamps. Now with 6 of them I can light up one whole side of the boat. With several days of vacation time coming up over Thanksgiving weekend, I've got big plans.
By my reckoning there are about 200 linear feet of things to fillet and tape. That's a lot of work. As with each stage of Jumbo building you have to just dig in and get going. Today I setup a jig to hold the heat lamps and warmed the port side chine. biaxial.jpg
I added a nice fillet and then taped with 6" 10oz and 4" 24oz biaxial cloth. I've never used the bi-directional stuff before and I was real happy with the nice way it laid into the fillets and wet out. It's a lot thicker than the normal 10oz woven tape I usually use but I wanted these joints to be super strong. Each of the strands is orienated 45 degrees to the joint being taped.
Even with the heat lamps it's still cooler than I'd like it to be and it takes more work to wet out the cloth. I take pride in being able to do clean glasswork that needs very little finishing afterwards but it's harder when the epoxy is cooler and it's not 80 degrees outside. I'm heating the resin before it goes on and working it though and in the end, it still looks good. I am using more though than I would if it were warmer. I've also discovered that my new best friend is my shop vac. We're going to be spending a lot of time together in the next few months. ;-)

Day 60 - Interior & Transom

Today I started working on the inside of the boat. First I had to have the 1st and 2nd mates try things out for size. They both approve so we can move forward! ;-)
I used my Makita grinder to clean up the end of the cloth on the hull interior and laid in the last section of 10oz cloth on the bottom. I also started taping the transom and the area where the versalam stringers meet the transom.

Day 59 - Flipped!!!

Whoa! Many hands makes for light work. I called everyone I knew and most of them showed up. I left the molds screwed to the shelves. This helped stiffen the boat during the roll and because they extended below the sheer line they acted as a hinge when we tilted that side down. We must of had about 15-20 guys so everything went fast and easy. We had the boat rolled and back up on the jig in 11 minutes flat. Thanks to all who helped!

Standing around and waiting until we reach critical mass. We started at 3:00. Those who came later than 3:11 were too late!
We tilted one side up and let the boat slide down the jig until the molds were resting on the grass. Having the molds still screwed to the boat kept it stiffer during the turn.
We had some of the tall guys over on the other side to catch the boat. No problems with Tom and Dan there. It came over nice and easy.
The folks on the low side were able to lift the hull a bit and slide it over during the turn.
After I screwed the bunks on the jig we all grabbed the boat by the splash rails and power lifted it up and over and it was back on the jig, right side up.
Here we're pushing it back up the driveway towards the garage. Note that you don't have to have everyone working, just some working hard to get a job done. ;-)
With the boat in the garage everyone gets to stand around and talk boat, oohhh and aaahhhh...
I just had to make sure the fuel tanks would fit - Yes, they go right in there where I wanted them!

Day 58 UHMW

Tonight I put on the UHMW on the center keel strake. I used #10 x 1 1/4" screws into the sacrificial keel. I drilled all the holes and installed it then took it back off and filled all the holes with epoxy and laid down a good bead of black Sikaflex. Then I installed it all over again. The edges are rounded over and it looks great. I brought it all the way up the stem but I didn't sikaflex that part as I have to lay it back when I paint the bow. I'm happy with how it looks and with how the keel strake in general turned out.

Tomorrow I'll drive some 1 1/2" screws into the spalsh rails from the inside of the boat to secure them. I'm not sure I really need that as they are glued on well but they are made out of laminated plywood strips and I'd feel better if there were screws as well as glue. The only other thing I have to do before flipping the boat is make some cradles to hold the boat when we put it back on the jig.

Day 57 - Spash Rails III

Tonight I put the final 1/2 of the splash rail on the other side of the boat. I also laid in a nice fillet on the bottom side of the rail. (top side for now until the boat is rolled...) Now I have to get ready for a boat turning. The last thing I MUST do is attach the UHMW to the keel strake before the roll.

Day 56 - Spash Rails II

Tonight I put on the outer layer of 3/4" on one side and the 1st layer on the other. Things are looking good. I'm debating laying on a strip of fiberglass tape with a fillet on the bottom of the rail while the boat is still upside down. At minimum, I'll put in a fillet and let the wood soak up a bunch of epoxy.

Days 54-55 - Splash Rails

I rolled on a coat of epoxy on the sides of the jumbo on Saturday and while that was curing I started making the splash rails. I'm using two stips of 3/4" plywood. I ripped up a bunch of 2" wide strips and screwed two at a time together and ripped them with a bevel on one side that left a face 1 1/4" wide for the 1/2" UHMW that will go there. The overall dimensions are 2" tall by 1 1/2" wide plus a 1/2" strip of UHMW.

Sunday I started fitting the rails. I put on the first layer of 3/4" and scarfed it right on the boat and glued it in one step. It's hard getting the right curve in the front part of the boat. I simply screwed it in every 6" and bent as I went. Later tonight I'll go out and remove the screws after the glue has set. Tomorrow I'll add the second layer and will screw into both from inside the hull. That will be only one side done though. This is another job that is taking longer than I thought it would.

Day 53 - Cabin Framing

Today I finally decided where at least the bulkhead at station #6 would be. I put in two framing pieces 6" forward of station #6. This means that the forward berths may be under 7' but I'm only 5'10" and I wanted to get as much deck space aft as I could. I'm still not sure how long the steering cabin will be. My fuel tanks are 6' so it would be easy to do that but that leaves me with only about 5' of deck space after the splashwell is in. To really decide this I also have to decide on the use of a hydraulic jackplate with 6" setback. Those 6" would come in pretty handy now with the boat being just a couple feet shorter than I'd like.

Day 52 - Graphite Coat #2

It was warm today, enough so that the epoxy I put on yesterday was nice and hard. Rather than just recoat I used my DA w/80 grit on the bottom to knock down any last remaining lumps and to give the second coat some good tooth to adhere. The next coat went on real smooth and I'm going to declare the bottom finished. ;-)

Day 51 - Graphite Coat #1

I'm just a lucky guy. We're having just enough warm weather here in Oregon late in the season that I'm going to get on two coats of graphite and be ready to roll this boat!

Best Marine Epoxy

My favorite epoxy? Progressive Basic No-Blush Epoxy

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