DSE

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About DSE

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  1. Machine learning: https://en.wikipedia.org/wiki/Machine_learning
  2. DSE

    How to build large format display

    I wonder if it would work as an cheap on-deck chartplotter as well. With it running android, I'm guessing it could run openCPN. Great to finally see some progress with marine displays with what appears to be more option becoming available.
  3. DSE

    How to build large format display

    Anyone know anything about this one? https://www.vakaros.com/ Looks like e-ink or something. I wonder if it will display NMEA data.
  4. DSE

    Recoating carbon mast

    If its already flaking, razor blades are going to be quicker in getting the bulk of it off. It's lot of sanding otherwise and it seems like you end up removing more of the carbon.
  5. DSE

    Recoating carbon mast

    Use razor blades to scrape old clear coat and sand (lightly). Wear a respirator, long sleeves and gloves. It'll be itchy. That will be most of the work. Solid color Awlgrip is the way to go. You can roll and tip to get a good finish, but spray is probably best. If you can, coat it indoors if in a controlled temperature environment to avoid variability in the finish due temperature changes, issues with bugs and dust, and issues with condensation causing it to haze if you leave it to dry overnight.
  6. DSE

    Using an iPad for a Mast Instrument Display

    Sunlight readability is the biggest problem with an iPad. Pretty good discussion here:
  7. DSE

    How to build large format display

    This looks pretty cool and am kind of tempted to order one. Like the OP, my main interest is the displaying large digits for boat speed, depth, apparent wind, TWS, etc. and not so much the start line and tacking angle stuff. You are saying this will display "4 items of telemetry in real time". So you could display something like boat speed, apparent wind direction, wind speed and depth on one page/screen? I'm currently using tacktick. It sounds like I would just need to run a wire to carry the 0183 data from the tacktick NMEA interface to this display.
  8. DSE

    Bad Company

    That's one of the yellow SC27s. Yes, a well sailed and dedicated crew. I remember that race and the speech from the crew afterwards.
  9. DSE

    Bad Company

    There's SC33 that does pretty well in most PNW races. Weird hearing that it doesn't sail to its rating.
  10. The checkstays on on my 3030 used a car on track that was between the genoa car and cabin top. A dyneema line (3/16 I think) was tied from the car up to the mast. There was another line connected to the car, led aft, and then cleated in a cam cleat for adjusting tension. For the hatch, I had called up W.D. Shock and they were able to make a fiberglass one from the original mold. I think mine was the same as shock 35. This was about 5 or 6 years ago, not sure if they will still do this.
  11. Some polars and trimming guide I used for my 3030.Perfomance_cheatsheet2.xls
  12. DSE

    Sidestay tension, why does it matter?

    If you have 100kN of preload, you would need a 100kN load to over come that preload. A bolted joint is another example of this: http://www.machinedesign.com/fasteners/demystifying-bolt-preload The preload is basically a stretched spring. To stretch that spring even more you need to apply a force that is greater than the force required to stretch the spring when it was slack.
  13. DSE

    Flying Tiger

    In the heavy upwind chop it seems like you'd still risk the mast hitting the forward area of the partners. Maybe putting more tension on the lower diagonals would keep this from happening? I've seen where a line is tied to the mast, back through an unused halyard clutch and then tightened to keep the mast from pumping forward. I suspect this may be the system MHK had used as it also gives you the ability to slightly adjust the mast rake and lower fore/aft mast bend.
  14. DSE

    Flying Tiger

    Sandbar, not a rock.
  15. DSE

    Flying Tiger

    Thanks for the info. I think the drawing would be helpful. I have been able to locate where the sleeve ends above the forestay. I'm assuming the block used is the same as the harken spinnaker halyard block.