Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
While I have no spinnaker experience my boat did come with one as well as a spinnaker and whisker poles. Looking thru my various "how to" sailing books, it looks like the clew end of the Spinnaker pole is not attached to the sails clew but just to the sheet right where it attaches to the sails clew. Is this right ? If So, what is keeping the pole end from sliding down and away from the clew ? Also, about half way up the mast near the steaming light, I have what looks like a halyard exit block. is it a safe assumption that this is for the Spinnaker pole lift ? Thanks again guys. Good sailing all.
The clew by the spinnaker pole is effectively the tack as it is windward.
I believe the solution to the pole sliding away from the tack is most easily solved by attaching a "twinger" to the "lazy" sheet which effectively turns it into a guy.
Run the twinger through a block far forward on the genoa track. The twinger is a small line with a flying block that rides on the spinnaker sheet. By positioning it forward and pulling the twinger in on the windward (lazy) sheet you create an angle in the sheet where it meets the spinnaker pole and the pole will want to stay forward.
If you are reaching pole forward, the pole will naturally not want to slide backward because the angle in the sheet will prohibit it.
So twingers and a foreguy are what I 'think' would work best.
An easier strategy, although may be a bit precarious would be to forego both twingers and a foreguy and instead rig a downhaul at the bow that attaches to the end of the spinnaker pole. If you already have a downhaul rigged at the bow for your headsail then you're all set. I don't care for the solution much because you have to adjust the downhaul and guy together, but it's simple to rig.
What is probably the best option but most obnoxious to rig is to run dedicated guy lines from each of the clews that run through blocks forward on the genoa track. Use the guy line on the windward(pole) side and the sheet on the leeward side. And of course add a foreguy.
The sheave that you described is almost certainly for the spinnaker pole topping lift.
If you'll google "singlehanded spinnaker" you'll find several helpful videos on the subject.
Both my boats and the spinnaker boats I have crewed on have a topping lift and a downhaul attached to the spinnaker pole. The topping lift holds it up, and the downhaul is attached to a point on the midline of the foredeck, and it not only holds the pole down, but it also enables you to adjust it fore and aft. When you're sailing as close to weather as possible with a spinnaker, the pole should be adjusted forward until it almost touches the forestay, but it should never actually touch any stay. When you're sailing deep downwind, the pole should be adjusted back until it almost touches the stays. Whenever you adjust the pole aft, you have to ease the downhaul at the same time.
When the pole is set and the downhaul is adjusted so that the pole can't move aft any further, then, when you pull on the guy, the clew of the sail is pulled up to the jaws of the spinnaker pole and it can't move in either direction until you re-adjust it.
Steve Milby J/24 "Captiva Wind" previously C&C 35, Cal 25, C25 TR/FK, C22 Past Commodore
As mentioned above, adding a tweek can change the angle and tends to keep things ok.
I highly recommend against a two guys and two sheets system. I have crewed on boats with them and they are trouble. Your foredecker will have his hands full and adding two more lines to worry about is the opposite of KISS.
former Captain of Heartbeat Catalina 25 Tall #4816
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.