While trying to deal with the winter time blues I'm trying to put together some projects for the spring.
After one season with the boat, and working out the bugs, its now time to play with the extras that it came with, mainly being the asymmetrical spinnaker
. Having never flown one before and I figured I could come here to grab some expert advise before I get too ahead of myself.
I'm not sure the exact size of it, other than BIG! I have not opened it up, just unrolled the sock. From what I saw, it looks damn near unused. After some research
, it seems the recommended size is around 1400-1450 ft². My questions revolve around the loads involved, and where to rig the tack and sheet blocks. I tried looking through pictures of my boat flying the asymmetrical, but the only ones seemed to be poor quality from the brochure I found online. The brochure for the Oceanis
500, which preceded the 510, and was essentially the same boat with an updated coach roof and cockpit
, has slightly better pictures.
It looks like the sheet blocks are attached to Whichard folding padeyes that came with the boat from the factory (also used for running backstays
, which seems like was an option too, but unconfirmed).
They are about as aft as they could be, just in front of the pushpit, under that pile of line in this photo
. (Please ignore the dirt, that was when I first purchased the boat).
It also looks like they attached the tack to what I'm guessing is right behind the headstay, but inside the pullpit.
So it seems to me, this is how they intended the asymmetrical to be rigged. But is there a better way? Maybe installing an eye at the end of the anchor
roller? I'm not sure if it would be strong enough as I don't know the loads on the tack of the sail. But it is a pretty beefy hunk of metal, all welded together with the stemhead.
If need be, I could fabricate a piece of stainless to tie the end of the roller to the striker plate, similar to what Beneteau
does on the new Oceanis
My other thought was to have a bridle
, fixed on one side of the stemhead, and a block on the other side allowing the tack downhaul to be routed aft without chaffing on the furling gear
. The tack of the sail would then be attached to this bridle
with one of those low friction rings. Maybe a shock cord to pull this forward when there is no load on the tack.
So my question is, is the effort worth it? Does it buy me anything to get the tack out a few inches further. I'm guessing it would make gybing easier, but I may be getting ahead of myself, I haven't even flown the sail yet!
My other questions involve the lines and blocks. The recommended sheets
for the spinnaker
on a boat of this size had a large range of working loads, which did not help me out much. It just confused me more. As far as blocks go, I would like something that can serve double duty as blocks for the staysail sheets
(the boat is also rigged with a removable inner forestay and running backstays
, and in addition to the main and 135% genoa
, she came with a staysail, a Yankee jib
, and a storm trisail, but thats a post for another day). When doing the sheet load calculations, what wind
speed to manufactures typically use to give the recommended deck hardware
So what say you? What is the opinion of the collective experience here?