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Thread: Jib Boom


  1. #1

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    Jib Boom



    New to RC sailing dont even have boat yet, building IACC120 NZL-92. This may have already been asked and answered, if so I was unable to find the answer.

    My question. Why is the jib club boom so much in favor and not a hoyt style boom?

    My initial thoughts are, the hoyt style boom offers much more. realistic, forestay, no need for jib topping lift.


  2. #2
    DONS BOAT WORKS's Avatar
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    RE: Jib Boom

    What is a hoyt style boom?
    Over the years I have spent nearly all of my money on boats, beer, and women. The rest of it I just wasted.

  3. #3

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    RE: Jib Boom

    It may have something to do with the need to build a very strong bit of underdeck framework to hold the spar, and to provide a means of low friction ability to turn, plus the boom itself needs to be very stiff, so all in all looks like a bunch of weight crowded out at the end of the boat that doesn't help pitching moment, or yawing moment either. They have been tried in several R/C classes, and after a bit of experimenting traded in on the more traditional counterbalanced jib club with topping lift.

    Rod Carr
    AMYA #2

  4. #4

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    RE: Jib Boom

    On any model yacht the need is for everything above water to be light. It also has to be strong enough to stand up to the forces imposed. In the case of moving parts, they also have to be free running/swivelling. Being on a remotely controlled model, it needs to be capable of operation without on-board attention.
    The conventional jib setup as used by the racing lads has become conventional because it works very well. The semi balanced jib boom with both leech and luff lines maintains a constant sail shape, is self tacking, and makes a forestay redundant. It also does not need an excessively engineered swivel.

  5. #5

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    RE: Jib Boom

    Thank you for the input. For those who don't know I have attached an outline of what a Hoyt Style Jib Boom might look like.



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  6. #6

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    RE: Jib Boom

    Like I said, a lot of extra work adding un-needed complication and weight to do the same job as something that has been proven to work.


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