Triloboat T16 build

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  • 18 Apr 2019 20:45
    Reply # 7292849 on 7274265

    I have my eye on the 2.6 poly ripstop /w DWR for my sail. I'd also be curious on using silnylon or silpoly as a sail.

  • 16 Apr 2019 15:50
    Reply # 7285079 on 7276530
    [...] Did you end up using the Ottertex fabric from fabric wholesale direct? They are still out of red, but the green really draws me as well. [...]

    Hi Andrew,

    In the end I purchased Weathermax 65 for my sail. It is not a low-cost option but the light weight and apparently dense weave sold me. I am not sure if anyone else in the JRA has used this fabric. I hesitate to recommend it for that reason.

    I looked at OTTERTEX™ CANVAS WATERPROOF. This stuff is really really heavy. It is 1.1 POUNDS per yard. I got a sample. It is tough stuff but I think this is way too heavy to use for a sail.

    It seems there are now two different ripstop polyester fabrics available from I seriously considered the OTTERTEX™ POLYESTER RIPSTOP (DWR) - 2.6 OZ. If I build a dingy-sized sail in the future then this will be my first choice. But for my somewhat larger sail I decided that a more substantial fabric would be appropriate.

    The fabric shown as OTTERTEX™ POLYESTER RIPSTOP (PU) - 8.7 OZ was not available when I was buying all my different samples. It is heaver than other fabrics I have seen recommended and, good or bad, it has a PU coating. The price looks really good. I definitely would have ordered a sample of this and looked at it with my shop lamp. The price is hard to beat and on second thought it is only 0.7oz heaver than the Weathermax 80 that I have seen recommended.

    Last modified: 16 Apr 2019 15:56 | Anonymous member
  • 12 Apr 2019 17:18
    Reply # 7279594 on 7274265
    Anonymous member (Administrator)

    You might be surprised what you can do with a model on that. When we set up AUKLET, I had done a working model of the rig which resolved a couple of crucial questions that would have been much harder – and more expensive, in incorrect lengths of line cut – to sort out otherwise. Raising and lowering the model sail was incredibly informative. Besides it was a lot of fun! Great that the general construction details are making sense for you – it's the various joints that always get me confused.

    As for the new boat, that's not the one going in the Race to Alaska. AUKLET, primary subject of the blog, and the boat in the photo that shows up when I do posts, is the one that is going to the west coast. Watch out for "fleet mentality" – it can get a person in trouble! We won't talk about how many other boats are on the premises here ;-)


    Last modified: 12 Apr 2019 17:21 | Anonymous member (Administrator)
  • 12 Apr 2019 15:21
    Reply # 7279428 on 7274265

    And to think, you could of had them build your shanty boat in Washington, so you would only have to transport the boat home when you were done! But that's a lot of pressure to get it done and shakedown cruise beforehand.

    Can't imagine trying to juggle 2 extremely challenging projects like that. Don't know how much input is required in the boat yard, but I bet they haven't built a boat quite like that before.

    The bigger building structures I don't have much issue visualizing. It is the smaller bits like how to make the rudder post water proof, how to run the lines for the sail to allow me to stay inside, and so on that I don't have a grasp on. But I don't think I will be able to until I am up to that point and have the physical boat in front of me.

  • 12 Apr 2019 12:45
    Reply # 7279177 on 7274265
    Anonymous member (Administrator)

    Hi Andrew,

    Sure, that's fine about posting the slideshow link.

    To tell you the truth, when we played with the bow and stern curves I had completely forgotten about that ratio. But I think you're right, the more gradual stern does make the deadflat shorter.

    I've used the small version of torqeedo, the 1003, for quite a few years on two different boats. I've found it quite good for sort of the opposite of what you're saying – getting in and out of dock systems when conditions are quite calm. And for when the wind dies, and there is not that far to go. I think that the torqeedo 2.0 would be more likely to do what you want, as far as being really capable in fighting more substantial current and wind with a 16 foot boat. The 1003 gets into trouble when there is floating weed, which wraps up on the propeller – it's not nearly as good as a gas motor with a metal propeller for cutting through that. Also, you have to be careful not to run it hard for very long at one time – that can overheat the battery, and there is an automatic shutoff when that happens. That can come as a shock, at a complicated moment! But with care, it's been quite useful, and I really like the advantages that go with electric rather than gas. Not having tried the 2.0, I really can't say for sure how it would measure up on the above issues, but I think it has a good chance of resolving at least some of them.

    The new boat will have the much bigger 48v torqeedo 4.0, which they say is equivalent to a 9.9hp gas outboard, which will run on a whole bunch of AGM batteries. We'll see how that goes – I'm accustomed to waiting for at least somewhat favorable wind and current, because of interest in sailing/cruising with no motor at all – the shantyboat will be a compromise, for ease and comfort. More motor use than what I've been doing, but also quite cozy accommodations for hanging around waiting for conditions to change.

    If you like, you can see what's been going on with the other boats I've been messing with, which includes some material about the motor, here, where I have a blog. Presently there is no discussion of the shanty boat project on there. The other thing that I'm up to this year is making a run at the Race to Alaska, and it has seemed too complicated to start up this other subject on the blog until the r2ak stuff has had its turn. It's enough complication just balancing both projects in my own head!

    Glad the photos are helping with your mental image of your build. Have you tried making a model? It can be really easy, done out of "foam core" – that stuff they sell at art supply stores for backing on posters and whatnot. It cuts easily, glues with Elmer's (white glue), and you can use regular sewing pins to hold parts together also. Doing that has made a vast difference in my understandings of both boat construction and rigging.

    Wishing you lots of fun, any way around!


  • 11 Apr 2019 12:56
    Reply # 7277523 on 7274265

    Mind if I add your slideshow to the sidebar on the triloboat subreddit?

    Those pictures really help crystallize the images in my head on how it all fits together!

    Looks like your deadflat is shorter than Dave's typical 1/4 x 1/2 x 1/4 layout? Also excited to hear how the torqeedo electric motor works out. I wouldn't want a gas motor as well, and my mind went immediately to an electric motor.  Not as a main propulsion device, but more for maneuvering in tight spaces with lots of current or wind.

    Last modified: 11 Apr 2019 13:44 | Anonymous member
  • 11 Apr 2019 03:28
    Reply # 7277109 on 7274265
    Anonymous member (Administrator)

    Hi Andrew,

    Yes, that would be me :-)

    So far, I've just started posting some pictures. You can see them here. I know what you mean about figuring out details of construction. Folks at the boatyard, who are doing the actual building, have been a really big help in figuring out details, and over this past winter Dave had some time to answer some questions. Feel free to bring up the things you are puzzling over, and if I have any ideas I'll be happy to share. I do actually have a copy of the T16 plans – it's such a great little boat!


  • 10 Apr 2019 19:45
    Reply # 7276530 on 7274265

    Scott - Thanks for the offer! I'll want to see your sails and how they turn out. Did you end up using the Ottertex fabric from fabric wholesale direct? They are still out of red, but the green really draws me as well.

    Shemaya - I assume you are the one and the same that I see comments semi-frequently on his blog? Do you have your build documented anywhere?

  • 10 Apr 2019 17:34
    Reply # 7276318 on 7274265
    Anonymous member (Administrator)

    Hey, Andrew, that's great! Looking forward to seeing how it comes along. I have a T 24 SHANTY presently in progress. So nice to see Dave's designs getting built, more and more. Can't wait to see yours on the water!



  • 10 Apr 2019 14:12
    Reply # 7275867 on 7274265


    Great to hear that you are getting your Triloboat build started! As you know I live nearby. Please feel free to contact me if you want talk about boats or if you need some help with a two person job on your build.

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