Boat Speed Indicator

Discussion in 'Laser Talk' started by kencraw, Sep 23, 2002.

  1. kencraw

    kencraw New Member

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    I saw the boat speed indicator on APS (Perfect instrument for tuning up, especially in classes that do not allow knotmeters while racing. Reads boat speed and records maximum speed attained, average speed and distance traveled. Impeller mounts on hull with adhesive, display mounts with dual lock Velcro (included). Easily removable. Powered by a lithium battery. )

    I was thinking that there might be another way around the block for us Laser sailors: drill a hole in the bottom of a centerboard and mount a traditional boat speed indicator in it. The idea being you have a practice centerboard that includes the indicator and another one for other times.

    Here are my pros/cons:
    -No adhesive to apply/remove on a continual basis.
    -Easy to swap without pulling the boat out of the water.
    -Requires an extra centerboard.
    -Requires a possibly very narrow boat speed indicator.
    -Can one get a good reading from the bottom of the centerboard, or is the hull a better place?

    Any thoughts?
     
  2. macwas16

    macwas16 New Member

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    ummm...k

    sounds like a great idea. i know i'd love to know my top speed. but the indicator must be smaller then the width of the daggerboard huh. but if it is indeed smaller then it is a great idea. and are you thinking of running the wires through the board? and one last thing, if you sail on flats or anywhere really if you hit bottom man that things gone. you must be carefull.
     
  3. sui805

    sui805 New Member

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    why don't you just take a handheld GPS with you?
     
  4. Goonie

    Goonie Guest

    Yeah and what would that cost? 55555550000000000000000$?
     
  5. sui805

    sui805 New Member

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    i don't know about the prices over in America, but those little things are pretty cheap here in Switzerland (the cheapest ones are around $150) I think that's still cheaper than stuffing your centerboard....
     
  6. Goonie

    Goonie Guest

    Umm, I live in Toronto, not the States, but hey is that 150$ American?
     
  7. sui805

    sui805 New Member

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    yep, they are about 240 Swiss Francs, and that's about 150 American Dollars...
     
  8. kwilson

    kwilson New Member

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    How exactly does that work..?? :?:
     
  9. mg38024

    mg38024 New Member

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    I've been using my ETrex as a speedometer. It works just fine and is actually cheaper and easier to use than most speed indicators. A good handheld GPS can be had for under $100 USD.
     
  10. kwilson

    kwilson New Member

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    [quote:0e5a718309="mg38024"]I've been using my ETrex as a speedometer. It works just fine and is actually cheaper and easier to use than most speed indicators. A good handheld GPS can be had for under $100 USD.[/quote:0e5a718309]


    Have you done any speed testing using your GPS? Even at a minor level what kind of numbers are you seeing as it corilates to position of sail and wind speed?

    There are many, including myself that would luv to see your #'s
     
  11. mg38024

    mg38024 New Member

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    I haven't found a good way to mount the GPS where I can see it while sailing. It's just about impossible to read while hiking. I have thought about somehow putting it on my arm, but that's still in the works.
     
  12. kwilson

    kwilson New Member

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    What about on the back side of the mast like the big boys do. Get some shock cord so you can pull it into view easily. It will be vertically mounted, I'm assuming your GPS operates correctly in this position. 8)
     
  13. macwas16

    macwas16 New Member

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    ummm...k

    yeah! that's the way to go.
     
  14. sui805

    sui805 New Member

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    With a GPS, you can only get a really reliable speed indication on flat water. The GPS speed indication is based on the distance made good from one coordinate to another coordinate. So it's not actually the speed (through the water) you are experiencing when you are for example surfing down a huge wave.

    But I suppose the GPS will give you a rough idea...

    I hope you understood my rather basic English :wink:
     
  15. Goonie

    Goonie Guest

    Your english is great! What is your first language? German? I speak a bit of german.
     
  16. sui805

    sui805 New Member

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    yes, my first language is German. i lived in New Zealand for a while so i also learned a bit of English...
     
  17. Goonie

    Goonie Guest

    Guten Tag! Ich heisse Seth und ich bin 15 Jahre alt! Ich komme aus Toronto. Hows my german?

    Seth
     
  18. Bradley

    Bradley Guest

    What does that mean? I don't speak any other languages... I know a little spanish though.
     
  19. Goonie

    Goonie Guest

    It means"Hello! My name is Seth and I am 15 years old. I come from Toronto."
     
  20. macwas16

    macwas16 New Member

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    ummm...k

    hey i know what guten tag means. i learned it in spanish class!....unfortunately thats the only thing i learned. :cry:
     

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