Plywood Dinghy Plans Questions,Aluminum Jet Boat Plans Free Usa,Trawler Yacht Builders Zip - PDF Review
05.02.2021, adminBy 2airishumanMarch 7 in Cruising Anarchy. I have flirted with a build of a Chameleon dinghy for two years. Last summer I re-shelved the project when a couple of used boats landed in my lap -- a 14' aluminum boat from the plywood dinghy plans questions s that was in great shape plywood dinghy plans questions needed paint, and a 12' fiberglass sailboat with a heavy liner, rather like a scaled-down Wayfarer, suitable as a knockabout, needing sails, varnish, and minor fiberglass work.
Other than the arrival of competing projects, there were several interrelated plywood dinghy plans questions I had hesitated to build it:. I want a nesting dinghy for an upcoming trip to Lake Superior because we want to visit the sea caves. Otherwise we wouldn't need a dinghy at all. I'm thinking about the Chameleon.
I have my 12' knockabout and am less interested in a sailing rig as a result. Hull including mating bulkheads, roughly 7 square yards or two sheets of 6mm Oakume. Plywood 5. I would allow 2 for seam fillets for a total of The aft buoyancy tanks, bow locker, and plywood for the seats are 2 square yards. Not everything is glassed but still probably another Gunwales are about 5.
Bulkhead beams and hatch framing cut from dimensional lumber are probably another 3. Dimensional lumber in the seats and seat brackets is probably another 6. Figure 3 for connecting hardware, oarlocks, cleats, hatch hardware, fasteners.
Brings us to The stock design specifies two layers of 9 oz tape on the seams, 6" and 8" wide, plus 6oz glass on the exterior, which is about 8oz a yard 4 total heavier than putting two layers of 4oz glass over. The two skegs, if included, add another pound or two. So pretty close to the the designer states.
Most builders are new enough to boatbuilding that they use extra epoxy, and most builds are sailing builds that plywood dinghy plans questions the daggerboard case and some turning blocks and so on, bringing the total weight a little higher.
S-glass vacuum bagged both inside and out? If that layout is too weak, are there obvious ways to recover the necessary strength while still saving weight compared to the 6mm ply for example by adding another layer to the layup or using biaxial 18 oz E-glass fabric instead?
Which foam products are worth considering? Same 6mm thickness as the plywood design? I've seen some of Danny's in person and thought they were overbuilt. Too much dimension lumber. Because I could do better, I designed and built a ply 11' nesting dinghy yes it's for sale and has been for decades but I won't link to the site.
This is plenty for a rowing dinghy. Really, it is. I built a 25 mph 11' planing dinghy that used single 12 oz x 6" wide double bias for the seam. That is roughly similar in strength to the 2 x 9oz, 6" and 8" wide, but half the weight. If you're concerned about my narrower plywood dinghy plans questions tape being too light at least use single layer of 6" double bias.
But it won't be. Use a single layer of 4" x 9 oz. Try to break the sample. It will likely break in the plywood just past the glass, not in the joint. Just coated with 2 coats epoxy and then paint. It doesn't need glass on it except for added long term durability. If you touch up the plywood dinghy plans questions scrapes through the paint from dragging it over rocks then it will last many years.
The removable aft seat sits on wood cleats above the foam blocks. When filled with rain water it still had enough buoyancy I could stand in it and bail it. It has an alternate position shown in blue. If you are rowing with 2 people, aft seat is in blue position. This solves the trim issue that Danny's super long seat is used for, but does so with much less weight penalty.
Do you need that much buoyancy? What else are you carrying that you need something plywood dinghy plans questions big. Put a support under it half way to split then span in 2. Use it instead of the long seat.
And it's very expensive. Use carbon where weight really counts and you need stiffness like top and bottom of a seat. Yes, it's x more than S glass but you use less, and use less resin. And you probably could do it with 2 yards. Be sure you're aware of that tradeoff. It should be plywood dinghy plans questions strong enough with 6mm occume, and no glass other than tape on the seams.
Foam or vacuum bagging seem overcomplicated, and introduce other issues puncture resistance for one. Check out Michael Storer's or Russell Brown's designs for ways to build strong, stiff, lightweight boats.
Yes, I really like Russell's PT11. Sort of pricey because they are only sold as kits. Works of art when he builds. My designs are more uh, utilitarian I'd say. But some people finish them very nicely.
I do not because to my the boat's dinghy is a bit of workboat. It gets beached on rocky shores, stuck against concrete docks with rusty rebar sticking out and gets smacked when a local in his boat comes in a bit hot to the dock.
I use the aluminium one as plywood dinghy plans questions main tender, keep it in davits. They're all bloody heavy, ideally I'd want something around the 20kg mark. Weight saving will be minimal. Jerome Fitzgerald, in one of his books, swore that the best dinghy is an inflatable kayak.
There has been research, both pro and amateur, into the properties of 'glass covered plywood. See here as an example. The late Phil Bolger often wrote that putting a sailing rig on a small boat compromised the boats qualities for rowing. Also, that it has a significant cost in dollars, time and effort.
He would plywood dinghy plans questions approved of your decision to leave the plywood dinghy plans questions off your dinghy and doing your plywood dinghy plans questions in a boat that's already sailboat.
There is a school of thought, which sometimes comes up here on SA, that you should build your boat out of ply with no glass or epoxy. Paint it with porch and patio paint. Don't make a big deal of fine craftmanship. Accept the fact that the boat's working life may be short because your need for the boat may also be short. Zonker and others went down this rabbit hole a couple years ago.
Don't know. But narrow inflatable kayaks are pretty recent designs, so he most likely used one with a fat tube either side of the paddler, and those are quite beamy and stable. So those might also be suitable alternatives if light weight is important to 2airishuman. Of course, if the Chameleon is a favourite design, alternatives may be irrelevant.
Glassing seems like overkill to me, to. I bought plans plywood dinghy plans questions build a 9'6" Joel White Nutshell pram 30 years ago. It took a few years to get to. The recommendation was Okume ply which was costly and hard to get where I was living in Vermont at the time.
So I went with marine-grade Fir plywood. The boat has spent over season since, in the water for 5 months, and every off-season, outside under a tarp. Now over 25 years old, only the bottom is showing some plywood dinghy plans questions of ply loss. Unlike most dinks, this one is dragged up granite shorelines often encrusted with barnacles.
If it had a layer of glass added at build, that would be shot anyway in places and way past due for replacement. I was hoping you'd post. Thanks for the analysis. I've seen the FB11 plans for sale and plywood dinghy plans questions you mentioning your goals for the design in another thread but I wasn't aware of the differences.
The bow locker could at, a minimum, be lightened up, by removing all the dimensional lumber, and using a magnetic hatch plywood dinghy plans questions the kayak guys use. It appears to me that both the bow locker and the aft buoyancy tanks also serve as stiffeners, which function would be lost if they were replaced with foam, no?
Or is the hull stiff enough without? Well, I'm plywood dinghy plans questions going to beat it up on purpose, but Superior, Vermilion, and Lake of the Woods are some of my favorite places.
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