Asymmetric furler
- Thread starter All U Get
- Start date
I assume you are thinking of using a “top down furler” system to handle your asymmetric sail.
Quite different from a head sail furler where the luff of the sail is attached at all times.
You have my interest, yes if I can visualize that. How would you make the attachment? I now have a sock that I raise after lifting sail and sock with the halyard.
Lots of info on inter web 
so Google is your friend but I will try to summarize.
The asym deployed will be the same as the sock. Connected at the head to the halyard and the tack to the bow of the boat. The asym will fly free as it does now.
The top down furler has a swivel at the head and a drum at the tack and a “torque” line that runs between them. The asym wraps/unwraps around that line as you retrieve and deploy the sail. The torque line is necessary to ensure the top starts to rotate at the same time as the drum.
So just like the sock it’s all the way in or out not furled like a headsail where you can choose how much of the sail is exposed.
The biggest difference I have found comparing a sock with a furler is my willingness to use the asym. If you have ever wrestled with a partially deployed asym with a sock you know what I mean
The furler lets you deploy and douse from the cockpit, so if you are headed for boat traffic or it’s one of those up and down wind strength days or you don’t want to gybe with the sail deployed, the furler makes this a lot simpler and safer imho.
so Google is your friend but I will try to summarize. The asym deployed will be the same as the sock. Connected at the head to the halyard and the tack to the bow of the boat. The asym will fly free as it does now.
The top down furler has a swivel at the head and a drum at the tack and a “torque” line that runs between them. The asym wraps/unwraps around that line as you retrieve and deploy the sail. The torque line is necessary to ensure the top starts to rotate at the same time as the drum.
So just like the sock it’s all the way in or out not furled like a headsail where you can choose how much of the sail is exposed.
The biggest difference I have found comparing a sock with a furler is my willingness to use the asym. If you have ever wrestled with a partially deployed asym with a sock you know what I mean
The furler lets you deploy and douse from the cockpit, so if you are headed for boat traffic or it’s one of those up and down wind strength days or you don’t want to gybe with the sail deployed, the furler makes this a lot simpler and safer imho.
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