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Can two servos (drum winch) operate simultaneously from a radio receiver

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Lance:
I am a novice modeller and am converting a pond yacht (70cm LOA) to RC control. Is it possible to set up an RC drum winch system, with 1 or 2 winches, to control the jib and main sails simultaneously? Can two drum winches be connected to the one RC receiver terminal?

Leaky Bottom:
Yes, 2 servos or drum winches can be connected to a single receiver output, you will need a Y lead, The plug connects to the receiver and the 2 sockets are for the winch plugs

Netleyned:
You only need one winch.
Either use a double drum on the sailwinch or a continuous loop with the mainsheet and jibsheet attached at convenient points on it
You would be best puiitng a spring in the line to keep a bit of tension on the loop.
Ned.

malcolmfrary:
Normally the reason for more than one winch is that there is a need to operate the sails individually, thus on different channels.
Normally a single line from the drum to above deck ending in a block where the lines to the sails connect plus the tension line that ensures that slack lines don't happen.  The tension line can be eliminated by using a continuous loop, as suggested earlier.
A limitation of extra servos on a Y lead is the current drawn. 
Depending on the servos and their loading, this might be more than the wiring between battery and receiver, and through the receiver, can handle.  Most winches are servos, and draw all their power via the receiver. Unless the wiring harness is rearranged to allow for a separate supply.

roycv:
Hi I have just converted a pond yacht 27 inches long to RC should be featured in Model Boats magazine perhaps next month.
I used one of the Howes of Oxford type multiturn winches which has twin drums in the unit.  A 2 turn winch should do the trick. They are also available on-line from Banggood on the Internet. 
This winch is the same size as a standard RC servo.  These winches do not need a cord set up with elastic returns etc.  They are completely enclosed and the cord comes out as required.  A little tricky to set up but have worked very well for me.
 Use a standard servo for the rudder not a small one as there are a lot of forces at work.  Everything runs from the receiver battery 4.8 volts 2000+mAhr rechargable battery.  If it is a dagger type keel get the RC in compact form so the weight is over the keel.  But if a long keel spread it where you can.

I know that MB magazine arrives a bit late in Oz, but one of the MB contributors also lives where you are.  PM me for information.
regards
Roy
 

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