Recent content by Mulkari

  1. M

    Designing a fast open deck catamaran

    Yes, there are several companies here producing laminated wood products. I will definitely take a look what they offer and what could be suitable for my use case. Just have to be damn sure glues used are durable in salt water environment.
  2. M

    Designing a fast open deck catamaran

    Considering what's going on in my corner of the world I'm more leaning towards building a plywood cat. There is a significant chance a war can break out with Russia trying to invade Baltic countries in next few years and if that happens and the project has to be abandoned at basic empty hull...
  3. M

    Designing a fast open deck catamaran

    For large cruising boats two masts may be ok to reduce the area of individual sails to be more manageable. Balancing sail forces easier with two masts. There are some advantages there, but pure performance probably not or we would see some high end racing boats with more than one mast...
  4. M

    Designing a fast open deck catamaran

    Plywood I plan to use is available in various sizes including sheets up to 4 m long. With 4 m sheet length there would be only 3 stitches on 15 m hull. https://www.finieris.com/products/riga-shipply/ 1220 / 1250 mm × 2440 / 2500 / 2745 / 2750 / 3000 / 3050 / 3340 / 3660 mm 1500 / 1525 mm × 2440...
  5. M

    Designing a fast open deck catamaran

    I usually sail if at all possible, but occasionally in very narrow channels I have had situations in strong winds where only way to do reasonable speed upwind was with motor and mainsail working together. Like 20 - 40 m and you have to tack and again and again. When shunting normal outboard...
  6. M

    Designing a fast open deck catamaran

    I'm looking through both most detailed C50 build blogs The Harry "Hendon" Saga https://harryhendon.blogspot.com/ C50 - Brazil — Harryproa https://www.harryproa.com/blog/c50-brazil It looks like while infusion itself is fast it takes a lot of time to make molds and arrange everything correctly...
  7. M

    Designing a fast open deck catamaran

    That's a concern because with outboard motor it is not too difficult to get overpowered. Motorsailing and tacking with mainsail only is my go to solution if facing strong headwinds in channel too narrow to reliably tack upwind using sails alone. Although doing it with heavily reefed sails on...
  8. M

    Designing a fast open deck catamaran

    It occoured to me that motoring and motorsailing is possible only in one direrction. I wonder if it is feasible to center both sails and motorsail by tacking. I often do this with my 9.5 m sailing cat in a river where wind often is too inconsistent to reliably sail. Leave the mainsail up and...
  9. M

    Designing a fast open deck catamaran

    Thanks Interesting, tacking and gybing have never bothered me much. With self tacking jib tacking upwind in normal cat or mono is super easy, you just push the tiller over and that's it. Less work than shunting where masts need to be rotated and booms pulled in when reversing on opposite tack...
  10. M

    Designing a fast open deck catamaran

    Most production boats are made to a price point. Average sailboat is parked in the marina most of the time and go out on weekends when weather is nice with occasional longer trips thrown in. They are mostly good enough for that purpose. Special purpose built expedition boats are much more heavy...
  11. M

    Designing a fast open deck catamaran

    Possibly, but that is something I would really like to see in action before committing building such unusual system. I think for sailboat risk is acceptable, there even are plenty of single engine powerboats that go offshore and they don't break down and need towing all the time. Sailboats...
  12. M

    Designing a fast open deck catamaran

    I think idea to use tender to also to drive main boat is kinda neat. Just not sure how it would cope with steep waves while attached to main boat bouncing up and down. In theory it is similar to sled mounted outboard, but outboard sleds are much smaller and don't float the outboard end. It...
  13. M

    Multihull Structure Thoughts

    It really seems quite heavy structure. I'm watching a Salt and Light youtube channel https://www.youtube.com/@saltlightdix4704/videos showing build of Dix 470 cat and guy building it mentioned hull is 12 mm marine plywood then comes 50 mm insulation foam placed between the stringers and it is...
  14. M

    Designing a fast open deck catamaran

    Tender boat that fits into a slot in the deck and can propel main boat by dropping rear end down is kinda neat concept, but I wonder how well would it work in waves throwing it up and down, possibly slamming against the deck. I suppose you need fairly calm water to dock it back to main boat...
  15. M

    Designing a fast open deck catamaran

    Interesting, do you know how far the build process is? It is within easy travel distance. I could just cross Baltic sea in car ferry and drive the rest of the way or fly there whichever is more convenient. Mods to make it better hold heat would really interest me. Harryproas are such a weird...
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