oldbilbo
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What are the views after the 2012 Azores experience?
Mine is a Trapper501, 27', short twin keels and spade rudder-can't let go the tiller for a moment except when close-hauled.
Coming back from Praia, wind4-6 dead aft, triple reefed main and storm jib, sailed dead down-wind for 3 days at 5-6knots, straight as an arrow, slept most of the time.
I've put a few videos up for interest. Two taken on 5th June with SeaFeather in its element, and another taken on return in the Channel, fairly light wind and almost exactly downwind. I'd been running a few days with just the Genoa and the SeaFeather performed perfectly.
See:
http://youtu.be/-22PBw06PDc
http://youtu.be/FubCRf4YOiM
http://youtu.be/jBbw2usMXII
I was very pleased with the SeaFeather, and Paul (who makes them) was extremely helpful and professional. They are well-engineered units. I didn't stop the boat on the way to the Azores, although it came close; I was down to storm sized reefs three times in four days, and the SeaFeather was the least of my concern.
In the written part under the video of you running you state that you were under genny only in light wind. Does the unit perform the same when the main is up or is that why you run under jib only?
Just out of interest what boats are you all fitting these to?
I have an Aeries on a Hanse 311 & being short of fin& wide of stern it tends to veer about a bit on a run with a short following chop although a slight change of course & a bit of fiddling sometimes sorts it
The comment earlier about a plastic bag on the vane was interesting as I was thinking about a totally different vane
I am going to cut the vane down to almost nothing & mount an aluminium tube on it. At the top of this I am going to mount a wind sock with mouth diam of about 150mm & an adjustable exit hole all mounted on a wire frame which pivots around the tube at the top of the tube. This would have a small balance arm on ot
Overall balance will be a possible problem but I already have adjustable counterweights on my system for different sizes of vane so it should be OK
Having a Hanse I generally sail with my self tacking jib but do have cruising chute & a genoa. It never occurred to me to sail genny only but I would loose a lot of sail area.
I have sailed with cruising chute only with a crew but might try it with the Aeries single handed having seen the comment above.
Normally If. Am having agro steering downwind I come round a bit & tack down wind. It tends to be just as fast as well. However, this is not so easy in places like the Thames estuary.
The comment earlier about a plastic bag on the vane was interesting as I was thinking about a totally different vane
I am going to cut the vane down to almost nothing & mount an aluminium tube on it. At the top of this I am going to mount a wind sock with mouth diam of about 150mm & an adjustable exit hole all mounted on a wire frame which pivots around the tube at the top of the tube. This would have a small balance arm on ot
Overall balance will be a possible problem but I already have adjustable counterweights on my system for different sizes of vane so it should be OK
I found in the Atlantic that it was generally harder to get a straight line track, regardless of whether I was hand steering or under Sea Feather. The Sea Feather never lost concentration but I did, so was probably better overall. Mine is a 26 double ended, and heading was affected by the general texture to the sea. The days when the wind was a long way abaft the beam were fairly fresh, so tended to sail under genoa alone. Perhaps the wide stern on your struggles more running than a double ender with more form 'balance'. Did you find any particular sail combination reduced the pull of the hull trying to round up?
On the back edge is glued a wedge shaped spoiler about 20mm wide at the back edge. This introduces extra drag and makes the vane more stable. It can pivot back as well which seems to make it more effective downwind in light conditions.