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Old Mar 27, 2009, 03:13 PM
jstntmcdrmtt is offline
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sneezes for lack of balsa dust
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sail winch setup


hello, will someone post a picture of a standard sail winch/servo setup? I love scratch building sailboats, and it just occurred to me to make one RC. I don't really know how to go about doing the main sail adjustment.
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Old Mar 27, 2009, 05:04 PM
hew565 is offline
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http://modelyacht.org/hintspage.html

look down to the single/double arm, sail arm setup link
Old Mar 27, 2009, 05:14 PM
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There is a simple Diagram inside the RMG Sailwich booklet (PG 10)

Also gives a good wiring Diagram.

Cheers
Old Mar 27, 2009, 05:27 PM
Dick L. is online now
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Here is inside of one of my RG-65 sailboats

Top is sail winch. Line runs from copper tube tostern, around a 180 turning block to top of deck and then forward to jib. Near the stern, the mainsheet is attached to the long jib sheet so both move togehter. Fine adjustment is made at the mainsail boom and the jib boom.

On the bottom is the rudder servo but without the pushrod connecting to the rudder arm.

The copper arm is simply homemade, flattened where it attaches to teh servo horn/disk. I needed a longer arm to make sure I hade enough sheet travel. Plastic, plexiglass, aluminum, wood, carbonfiber all can be used for an arm if a longer one is needed.
Old Mar 27, 2009, 06:45 PM
jstntmcdrmtt is offline
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sneezes for lack of balsa dust
cool, thanks. so the sail is fully supported by only servo torq?
Old Mar 27, 2009, 08:14 PM
Dick L. is online now
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Yes - and if you want to control jib and main you could also move the servo to center of boat and allow arm to sick out on each side with one side pulling on main and the other pulling only on jib, but still with one arm.

Lots of ways to run sheeting - depending on boat design, if you want the m above or below decks, etc.

Guys are telling me my winch servo is a bit of overkill for this size of boat.

Good luck with your project.
Old Mar 28, 2009, 04:15 PM
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Here's a couple of pics of the servo centered.


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