Join Date: Oct 2000
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this is not the twistle rigs that i have seen.
The twistle rigs that i have seen have the poles attached to the clews of the twin headsails aft of the forestay. the twin headsails sit in the port and starboard grooves of the headstay foil.
the poles are joined forward of the mast and aft of the sails with the "twistle rig connector"
this is like a universal joint that joins the two poles. it has provisions for a foreguy, aftguy, topping lift and downhaul.
the twistle connector is held in place by these four lines forward of the mast and floats there.
you do not need an additional forestay. you still need to steer the boat either via autopilot of windvane.
the rig only requires the twistle, a second headsail, and a second pole.
on my amel the boat comes equipped with a genoa which is set to port on the headstay and a balooner "like a spinnaker" that is set on the starboard headstay track. we are provided with double poles as stock equipment. both this rig and the twistle rig put up a heck of a lot of sail area. on my boat it is about 1900 sq feet and my gennaker is only 1500 sq feet.
i admit the gennaker is a lot easier to fly but once set up you can run the twin headsail for days on end.