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    Kathryn - a Thames Bawley - 5
    1 Post ยท 3 Followers ยท 17 Photos ยท 9 Likes
    Began 4 months ago by
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    United Kingdom
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    ๐Ÿ“ Kathryn - a Thames Bawley - 5
    4 months ago by ๐Ÿ‡ฌ๐Ÿ‡ง flaxbybuck ( Captain)
    โœง 29 Views ยท 9 Likes ยท 3 Comments
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    ๐Ÿ’ฌ Add Comment
    Designing the sheeting loop was perhaps the most important single item beneath the deck. It needed very careful planning to make the travel distance on the loop as long as possible whilst maintaining sufficient space beneath it to mount the winch servo. I also wanted the facility to remove the whole thing as easily as possible, and this was done by locating the front end in a 'socket', and the rear end retained with a single screw.

    Careful calculations were made to determine the travel distance required, whether the winch should be 2,4 or 6 turns, and placement of the nylon grommets through which the sheets emerge above the deck. The servo is mounted on slotted holes so the right tension on the sheeting loop can be achieved.

    The rudder servo is also mounted to the underside of the deck using two strips of aluminium. Operation of the tiller is by thin cord which is led through screw eyes back to the servo arm. The cord passes through shallow saw cuts in the hatch coaming immediately beneath the hatch itself.

    Location of the 5 x AA battery pack took a while to sort out. None of the locations shown in the photos was used. Eventually I made an aluminium box which is slung beneath the sheet loop platform which enables me to insert or remove the pack through the central slot in the platform. A switch is attached to the hatch coaming, and covered with a piece of latex glove to make it watertight. The receiver is also mounted on the coaming with velcro.

    Detailed design of the sheeting arrangements was done after all the mast, spars, rigging and sails were planned.

    ๐Ÿ’ฌ Re: Kathryn - a Thames Bawley - 5
    4 months ago by ๐Ÿ‡ฌ๐Ÿ‡ง flaxbybuck ( Captain)
    โœง 17 Views ยท 2 Likes
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    Mike, your winch system looks beautifully engineered, not like my amateurish attempt !
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    ๐Ÿ’ฌ Re: Kathryn - a Thames Bawley - 5
    4 months ago by ๐Ÿ‡ฌ๐Ÿ‡ง mturpin013 ( Admiral)
    โœง 35 Views ยท 6 Likes
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    Hi Flax, your system is very much like mine as you say it needs to be removed easily I also have just 2 screws to remove the whole winch system
    ๐Ÿ’ฌ Re: Kathryn - a Thames Bawley - 5
    4 months ago by ๐Ÿ‡ฎ๐Ÿ‡น AlessandroSPQR ( Rear Admiral)
    โœง 32 Views ยท 3 Likes
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    Hi Flaxbybuck.

    I really like the study you did and how you are creating the whole RC setup.
    What interests me most of all is the winch control system for the sails.
    I hope you'll post lots more pictures and, when you're done, a video of how the winches work in action.

    P.S. I ask you this question too: where can you buy sail winches with a spool like the ones you are using?


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