Mess Deck: General Section > Model Boating

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

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malcolmfrary:
If a drum only gets one layer of line, the travel will be as constant as it can be.  If there is more than one layer, the length will vary by whatever extra diameter the drum gains as a result, and how the line layers settle.
Electronically, unless mother nature alters the circuit (i.e. damp) the information supplied will always result in the same answer at the drum.  What the drum does with the line, and what happens to the line over time is a different question.  Probably why it is a good idea to have a bowsie in the running rigging to take care of that kind of thing.


If handling a loose footed fore like a Genoa, some means is needed to swap sides as well as adjusting for tightness.  That will need another servo, and it will need to be on another channel.

tonyH:
That's what I assumed from your answer on the other thread Malcolm, so with the net width of the drum being 4mm and 7 turns plus a couple of turns extra, there is almost certainly going to be a second layer on one of the drums except, possibly, around the travel mid point. I was thinking more of the comment from Geoff which, I assume, is down to manufacturing tolerance unless..........
Tony
 

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