CHERTSEY

BOATS, BRIDGES, BOILERS ... IF IT'S GOT RIVETS, I'M RIVETTED
... feminist, atheist, autistic academic and historic narrowboater ...
Likes snooker, beer, tea, rivets and solitude, and is strangely fascinated by the cinema organ.
And there might be something about railways.
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Thursday, 6 October 2011

Web log

Staying with the salty theme for another post, I was as hard pushed as ever this year to find something original and suitable for Jim's birthday. Obviously a new boat project raises all sorts of possibilities, but where to start andwhatvwould he actually like? Fortunately he solved the problem for me by winning this on ebay.


Now, this is part of a whole new world opening up for me. Of course if you'd got me to think about it I would have said that I supposed there must have been some way for boats to know how far they had travelled, but would never have guessed at something as simple and elegant as the Walker's Knotmaster Log.


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5 comments:

  1. Andy Tidy6 October 2011 at 22:52

    How does it work?

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  2. Sarah7 October 2011 at 14:41

    There is a rotating thing in the back of the guage to which you attach the twirly torpedo-y thing on its cord and chuck it overboard. As it's dragged through the water it rotates and once the twist has been taken up in the cord, it turns the rotating thing in the back of the display unit which turns gears which turn the little guage displays. I couldn't believe it could be so simple and still work. Apparently they're not very accurate at low speeds, and can come skimming out of the water at above ten knots though!

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  3. Anonymous7 October 2011 at 18:18

    Looks like it would be easy to get it caught round Chertsey's prop!
    Paul (Capricorn)

    ReplyDelete
  4. Sarah7 October 2011 at 20:19

    Yes, not recommended for canal use!

    ReplyDelete
  5. madcat8 October 2011 at 21:42

    we have a table lamp made out of a log spinner ,OH made it years ago when he was at sea.
    Don't envy you the lumpy water boating though

    ReplyDelete

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