The 16′ 8″ Goodnow kayak is stunning. It’s lines flow beautifully and it begs to be built and paddled. At 17 5/8″ wide, I’d have a hard time fitting into it, so I decided to model the kayak for a possible upscale and build. Included here is the FREE!ship file for your download and some information about the kayak.
The Goodnow kayak appears in Mark Starr’s Building a Greenland Kayak
Kaper Numbers
Kaper is a resistance program used by Sea Kayaker Magazine
- 2 knots – 0.832
- 3 knots – 1.739
- 4 knots – 3.253
- 4.5 knots – 4.818
- 5 knots – 7.351
Goodnow kayak linesplans.
Hydrostatics
These hydrostatics are generated for a typical Midwestern male at 171 pounds.
- Length over all :16.679 [ft]
- Beam over all : 1.478 [ft]
- Design draft : 0.405 [ft]
- Midship location : 8.339 [ft]
- Volume properties:
- Displaced volume : 3.228 [ft3]
- Displacement : 0.092 [tons]
- Block coefficient :0.3950
- Prismatic coefficient :0.5126
- Vert. prismatic coefficient :0.6600
- Wetted surface area :16.576 [ft2]
- Longitudinal center of buoyancy: 7.912 [ft]
- Longitudinal center of buoyancy:-3.027 [%]
- Vertical center of buoyancy : 0.255 [ft]
- Midship properties:
- Midship section area : 0.446 [ft2]
- Midship coefficient :0.7707
- Waterplane properties:
- Length on waterline :14.110 [ft]
- Beam on waterline : 1.428 [ft]
- Waterplane area:12.062 [ft2]
- Waterplane coefficient :0.5985
- Waterplane center of floatation: 8.013 [ft]
- Entrance angle : 4.028 [degr.]
- Transverse moment of inertia : 1.350 [ft4]
- Longitudinal moment of inertia :103.04 [ft4]
- Initial stability:
- Transverse metacentric height : 0.673 [ft]
- Longitudinal metacentric height:32.175 [ft]
- Lateral plane:
- Lateral area : 4.387 [ft2]
- Longitudinal center of effort : 8.001 [ft]
- Vertical center of effort : 0.237 [ft]
Built by Jean-Luc Bellieud
Sample Station and Stem Plans
The free drawings comes with a combined station and stem plan. You can work from this if you only want to print out one piece of paper. Great for framing and placing in the boat house (garage). Sample below.
Nesting Sample
These drawings come with multiple pages of nestings. Each station and stem is drawn separately. Use spray adhesive to fix the paper to your plywood before cutting out the forms. Nestings cost extra. Sample below.
Printed Drawings
Buy printed drawings that include the Station and Stem Plans and a full set of Nestings for $100. Comes printed on 24- by 36-inch paper.
Electronic Nestings
Buy a pdf of the electronic nestings for $30. You can print the file on 24- by 36-inch paper on your own.
Donate
If you build this kayak from the free plans, consider donating $30 for my time and effort. Any donations are appreciated. Whether or not you donate, please, send me a picture of your build–I’ll add it to a builder’s gallery.
Free Kayak Plans Downloads
The free kayak plans come as a pdf (free Adobe Reader required to view) that you can print off at photocopy stores.
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8 Comments
I have used Freeship to open the file. It was OK but it is impossible to “develop plate”.
Is it normal?
I want to try to buil this kayak and I need to use this function to prepare the plywood plate.
Could you help me?
Thanks
Jluc
You’ll have to go into the layer menu and mark each plate as developable. You’ll notice when you develop the model, that there is major compression in places.
It might make this boat a hard one to build in plywood.
Thanks for your help
Hello
A french Goodnow is born…
I did a test today on the sea.
Nice boat, easy to roll, very fast…
It was not so difficult to build it.
My son make some photos. Of course It is his kayak.
The next one will be for me, an Igdorllsuit.
Thats great. If you have pictures, please, post them!
Hello.
I really want to build the Goodnow Kayak. But how do i print out the stations for stripbuilding in freeship?
Thanks Andreas
The easiest way is to save a copy of the linesplan in dxf, then open it in a CAD program and print from there, because this will give you your stem profiles. First, specify where you want your stations. The second way is to export 2D dxf polylines.
I’m uploading 3 pdfs. One includes the stations, and the other two include the bow and stern stems.
Let me know how this turns out for you.
Thanks for very fast answer.
I will let you know.
4 Trackbacks
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