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andy00 last won the day on September 25

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About andy00

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  1. While there are rare couples that paddle well together, tandem boats are called "divorce boats" for good reason. Decades ago, I bought my first canoe from a woman who was recently divorced. He really liked boating. She did not. One of the joys of solo kayaking or canoeing is the feeling of controlling your own boat. And you can paddle along with other folks, each in their own boat. Also remember that primary stability is just that. Secondary stability is what actually increases the probability of avoiding a swim. Fair winds!
  2. Nice! Are you kneeling or sitting and what is the arrangement for floor boards and/or a seat? How does the yoke work?
  3. Those boats are stitch-and-glue or wood strip. Nothin' wrong with that, but they ain't skin-on-frame. Yostwerks is all SOF.
  4. No direct evidence, but the general rules are that smaller beam is better and multi-chine is better. Therefore, Long Shot and Firefly look like the best bets. If you want a boat with even less beam, you need to check out yostwerks.org.
  5. Hello Europe! It's been many decades since I studied strength of materials, but I don't think your calculations capture the whole picture. You're ignoring the modulus of elasticity, which has to do with how the wood bends. Based on ratio of the average densities of the two types of wood (26:23), you could probably save only about 2 pounds. We must also keep in mind that there is significant variability among trees of the same species, among sticks from the same tree, and among how the sticks are sawn. We're not dealing with a more uniform material like steel. Look at the grain of each sti
  6. Love those native-style paddles! Who wants to use a factory-made paddle with a hand-made boat? They work well, and if it doesn't feel quite right, whittle it some more or make one a bit different. Wood paddles are also good winter projects. The one I've settled on for use with my Ravenswood is the 4th from the top, which is a hybrid West Greenland/Aleut model (8'-7").
  7. Daedalus: Nice boat! The rocker isn't necessarily off; saying that it turns slow but tracks great is like saying "It's hot out but not cold." On the kind of big water in your video, you'll find great tracking much more important. For quicker turning, learn to edge your boat and use sweep strokes. There are lots of videos on line showing the techniques. Also, as a former safety manager, I can't sign off without reminding you to always where a PFD. Have fun, Andy
  8. Jeff: Wishing you a speedy recovery and fair winds! Andy
  9. Another option for stowing gear in a SOF kayak is use of combination dry storage/flotation bags. Flotation bags are really important for safety in any case. Check the following websites: nrs.com salamanderpaddlegear.com skin boats.com
  10. I don't know the particulars, but composites are typically less stiff than wood. They don't have the long fibers of wood. You might have to increase the scantlings. On a boat as small as the tadpole, it might be OK. But you can use other woods in place of WRC, e.g., other cedars, pine, or spruce.
  11. So, what's the result of the failure analysis? Was there a knot or odd grain where the stringer failed? Any other evidence that could help prevent such an incident in future projects?
  12. Dear Mr. Chair: If causing an unfair curve is a concern, you can carve a little curve into the butt block. But I think that you will find that less curve is needed than you might think. As far as clamping, consider lashing, cable ties, and/or screws. If you use epoxy glue, you don't need a tightly clamped joint, as the glue will fill the gaps. Remember to put some plastic sheet (e.g. plastic bag) between the stringer and the skin to avoid gluing them together. Have fun!
  13. Looks like it could be repaired with a butt block. The two butt blocks shown were used in the original construction in lieu of scarf joints. They are the same scantlings as the stringers they are joining.
  14. Intuitively, it seems to me that (in the case of a fuselage-frame boat with single chines) the five full-length longitudinal members (keel, two chines, and two gunwales), which are tied together with the stems, the frames, and the skin, provide almost all of the overall structural strength. Deck ridges are mostly for more localized purposes, such as providing a place to rest your fanny or room for your knees. Have you checked out www.yostwerks.com? There are a number of designs there with various combinations of single deck ridges, double deck ridges, and no deck ridges.
  15. Traditionally-built Greenland boats typically have two longitudinal members (deck ridges) that run forward from the masik over several of the deck beams, which run athwartship. Some fuselage-frame boats have similar bits. But the two construction techniques are quite different and comparisons can be tricky. There are a variety of arrangements among fuselage-frame kayaks including single and double deck ridges before and after the cockpit. Before the cockpit, they make room for knees. After the cockpit, they serve as (as Jeff calls them) fanny beams, to rest your fanny as you slide
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