Back in 2015, I purchased Core Sound 20 Mark III boat number 3. It's turned out to be a great boat and I've had some wonderful adventures with Skeena. At the time I purchased the plans, the only designing not quite done was the hatch. There was a lot of discussion back then. Graham and Alan eventually finished the design, but I'd already proceeded with my own design, which was sort of like Graham's, which I'd seen I think at the MASCF. The sliding aft part was excellent, but I was never quite satisfied with the front.
To open, I had to un-dog it on both sides with screws. And then open it and tighten the prop hardware. I liked it as it provided a nice fresh breeze when cracked open at night, but I didn't like the speed of opening and the fact it opened into the sail path. It was awkward to get out to use the anchor. A few times on the Chesapeake this spring I sent my daughter forward on top of the cabin and it was then that I decided to change it.
I had seen Jay, Amos and Chick's sliding designs, and I decided I liked the safety of a slider. In order to keep my solar panel, and because I'd already cut a hole for the old hatch, here is what I came up with over a few beers anchored on the Myles River near St.Michaels a month and a half ago, while talking to some of my friends.
She's a slider like Chick designed, but there is a garage over the middle part to hold my solar panel. The hatches run in a full length groove. There is a stopper cleat on the aft of the front hatch and the fore of the aft hatch. There are six weep holes that let water exit from the rails.
I made it out of Mahogany, which is a bit heavily that the pine I used before, but I used less of it, so there is that. I hate bright-work, but it sure looks sweet. The rest is Spanish cedar. You can walk on any of it.
I trimmed the old hatch coming down using a sander, to a line. For that I had to clear the cabin.
In this picture you can see the inset magnets I used to latch the slider. I bedded 7 pairs of strong magnets I bought, on both the hatch and it's slot. Sliding the hatch forward snaps it shut. I didn't love the idea as I thought it would interfere with my compass, but my son Teddy told me it would be fine and he was right. I won't shoot a mark with my handheld compass up there. If there is a downside, it takes a bit of strength to pop it open. I have a actual latch to use for security I'll install tonight. I can reach the anchor gear easily from here, and get the sail lugs started, etc. Nice and secure.
Open. Amos mentioned he was surprised his hatch was waterproof. We had a torrential rain storm and the lid pooled over a half inch. No leaks! I had some doubts, but I even dumped a five gallon bucket over it. No ingress.
Inside. My bug screen still works with no mods. I routed a pull into the hatch.
Solar wires. I like that the wiring is now fixed to the solar system. My son Teddy 3-D printed me a cover for the old setup but it won't work so he's printing another one to protect the wires.
Aft. Pretty similar to the old design, with the addition of the recess to push/pull when the hatch board is in.
My favorite part. If you shove the aft hatch forward, it closes the front hatch, and the magnets latch it. I suspect my kids will sit up there on the edge, or poke their head out like a tank commander. The only downside is the lack of ventilation. I have an idea, but let's test what I got first.
I noticed in Graham's epic journey, he had figured a way to deploy his anchor from the cockpit. I'm curious to hear his solution. That will be next. I have a lot of trips planned and it's good to get this small project that took way longer than it should have done.
I love this boat.