sail winch setup - RC Groups
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Mar 27, 2009, 03:13 PM
sneezes for lack of balsa dust

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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Mar 27, 2009, 05:04 PM
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look down to the single/double arm, sail arm setup link
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.

Mar 27, 2009, 05:27 PM
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Dick L.'s Avatar
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.
Mar 27, 2009, 06:45 PM
sneezes for lack of balsa dust
cool, thanks. so the sail is fully supported by only servo torq?
Mar 27, 2009, 08:14 PM
Registered User
Dick L.'s Avatar
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.
Mar 28, 2009, 04:15 PM
Registered User
Here's a couple of pics of the servo centered.

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