Storm Jibs and Solent Stays

Regular readers will know of my enthusiasm for Solent stays as a great “Gear Change” for most conventional sailing boats. The Solent is particularly effective if the boat in question has a low aspect-ratio rig. That is the height divided by the J-this distance is roughly the forward side of mast at deck level forward to the head-stay fitting on the deck. So for instance a spar height (commonly referred to by riggers, mast makers & sailmakers as the “I”) of say 45 feet and a J of 15, is a three: one aspect ratio. A boat with a 47’ x 12’ rig is close to 4:1 aspect ratio.

And yes a tall skinny sail is just fine more or less—When sailing up wind close hauled—Only. For the average cruising boat high aspect-ratio sails are not so good. This has to do with both the strain on the head of the sail: the top of the sail tends to go very round in the head pretty quickly and more importantly, when the sheet is eased, the top of the sail twists off dramatically.  When adding foresails to the inventory, an owner would be well advised to consider the aspect ratio of the where the sail is to set.

Quest 30 arriving in Newport. Headsail in use is the primary sail on the furler. You can see that the sail is relatively tall and skinny

With this in mind I have been working on just such a problem over the past month or so. A mate of mine is preparing his Quest 30 for the Bermuda 1-2—a solo race to Bermuda from Newport, RI then a DH race back from Bermuda to Newport. The Quest has an “I” of 41.0 feet and a “J” of 10.7 feet so again close to 4:1. Since the boat is to be sailing the ocean, simply relying on only one headsail on the furler  to sail across the most likely spectrum of winds between Newport and Bermuda in June is not a sound seaman like option. Especially with this type of furler which is merely a furler, not a reefing headstay.

The boat does not readily allow of a Solent set up, in the classic fashion–Roughly parallel to the headstay and a foot aft. Thus I had to design a system for setting a small sail that ended up being a Solent hybrid. A cross between a “cutter” stay and a Solent. In this  case the bottom of the stay lands very close to the stem head of the boat, like a Solent stay would. BUT the top of the stay lands at the second (top) spreader in the way a conventional Cutter stay might. There are a few reasons for this.

Primarily the fact that the spar had already the fittings necessary for a stay, runners, a sheave box and the halyard all at the top spreader-See image above.

So there were a lot of the basics for a stay on which a small sail could be set, with out re-designing the entire mast and deck layout. Overall  my goal was:

  • Design a system that could be deployed easily quickly and with the least amount of ruckus given that when it is going to be used, it will be blowing at least 25 kts.
  • Ideally the installation made use of the various equipment already installed and available on the boat-We did not have time or inclination to get into the boat building business.
  • Do it in a way that was cost effective, the more so since the entire staysail arrangement would only be rigged up on the spar and deck and perhaps not even deployed at all, every two years for the Bermuda 1-2. The rest of the time it will live in a bag in a locker somewhere.
  • Get it all designed, fabricated, installed and sea trialed as soon as could be done so any adjustments could be done in a timely given the start of the B-12 is 08 June.
There was also a fitting on the fore deck, very well secured to the aft edge of the anchor well, as is common however using this was not viable for several reasons I will get to.

I know this boat, intimately as it turns out:(I sailed this boat to Plymouth, UK in April 1996 so the then owner could sail it back in the OSTAR-But that is another story) So my first question was to look at the rest of the sail inventory to discover what headsails were to be carried in the race?

  1. The primary headsail is a 105% or so slightly high clewed jib set on a roller.
  2. The mainsail has three reefs. The head of the mainsail is below the top spreader when the third reef is set-Watch for this detail later-on in this post.
  3. There is a small sail called a storm jib, but having used this sail on the boat, I know it is a useless in practice. It is the wrong geometry completely.
  4. The boat has water ballast. This is in effect another gear/reef. As the wind comes on, rather than reefing, filling the water tanks is the equivalent of reducing sail.

The primary 105% furling headsail sets on a furler at the stem head, like normal, but not on a “normal” Harken type furler with a foil. It sets on a Facnor 4500 foil-less furler. As the images below show, the furler is very simple:

There is a stay made from 1×19 wire as is pretty normal. The tack of the sail attaches to the drum–You can see the horizontal pin with the key ring and light line holding it to the boat in the above picture. The drum is driven by an endless loop line (led aft) that rotates the drum and so the wire: the head swivel rotates freely. The sail is attached to the stay by the soft hanks made of Velcro.

The sail is attached to the stay by “soft hanks” made of webbing and velcro

The idea here is to get the best of two worlds. A sail that can be furled, most of the time, BUT when it needs to be removed, it can be unrolled and lowered to the deck like a sail, with, well hanks-Just like the old days-So the sail is not going to blow all over the foredeck life lines and end up in the water.

The furler for the primary headsail is an foil-less furler. The Jib uses soft hanks connected over the wire stay. The grey cylinder is the top swivel

The white material aft of the drum attached to the tackle is a strop we fabricated to pass through the deck and connect to the headstay pin. To minimize chafe we installed a through-hull fitting into the deck for the strop to pass through. We attached a Wichard eye to the headstay pin and secured the strop to the eye with a soft shackle–The image seen below is a light line we used to line up the hole through the deck to the headstay pin.

To anchor the bottom end of the stay, we threaded an eye to the aft end of the pin holding the headstay to the boat. The light line is a guide we used to line up the angle of the stay through the deck with the eye fitting so we could get the right location in the deck for the stay strop to pass thru.

BUT

In practice I cannot see unrolling this sail lowering it, (the material is pretty stiff and the sail has vertical battens-as seen in the top picture sailing into Newport Harbor), lowering it to the deck, removing the battens, flaking the sail, getting it in a bag, releasing the hanks, pulling the tack pin out, un-shackling the head of the sail from the swivel, without losing the shackle, getting the whole show below without losing anything over board, including  yourself, getting banged up yourself and then finally reversing the process with another small sail.

I cannot see that process talking less than an half an hour per sail even on a 30 footer.

So as a practical matter, the primary headsail would be furled up and a smaller sail set so the boat needed an inside stay.

A quick scan of the possibilities indicated that the best option would be to have a sail set from the top spreaders and landing just aft of the head-stay. Some of the issues to do with this that needed to be addressed included:

  • The main furler is installed below decks in the anchor well, so immediately aft of the forestay, there is nothing meaty enough to land a stay on.
  • Since the sail would go to the top spreaders, the rig would need running back-stays
  • If the small sail was to be set on the foredeck, at the aft end of the anchor locker, then the aspect ratio would be too tall and skinny-Not good geometry for a hard air sail, to be used in the ocean. The aspect ration of this triangle is over 3.5:1-too tall and skinny.
The pad eye in the foredeck was too far aft to either make for a good shaped sail nor would it be big enough, as can be seen in the picture below.

This image shows the location of the one pad eye aft of the stem, at the aft end of the anchor locker. (far left of picture) This was unsuitable because to install the stay tensioning tackle properly would have needed another couple of pad eyes AND the sail would be too small AND not very good geometry–Too high aspect. The results of what we did-Install a tackle and stay just abaft the stem-head, can be seen in this image.

“Normally” inside stays for most cruising boats today (although I am apparently single-handedly changing this), of any flavor use some kind of mechanical ratchet crank device or a Hy-Field lever. Both of these options are:

Heavy, difficult to handle, very difficult to tension after a while when everything as stretched in, and being heavy are awkward to man-handle around the foredeck when needed. They cannot be removed in a hurry as circumstances dictate.

A Wichard hand crank adjuster on the Solent stay on a 44 footer, using a wire stay-This particular wire stay has been replaced by a textile stay that weights 5 pounds. Handling the crank, stay and a sail is way too much work and being heavy throws a lot of inertia around in the seaway that will be in evidence when this equipment is in use.

At the end of the day I designed a set up as follows:

Textile stay fabricated from a Spectra fiber product known to Hall Rigging, who made it for me, as Fiber wire.

The Fiber Wire stay. The keys are to give idea of scale. The “T” fitting is visible on the right hand side

This stay attached to the spar using a T fitting, seen above

The bottom end of the stay was tensioned by a 4:1 tackle running through Antal thimbles.

The stay is tensioned by a 4:1 tackle running through Antal thimbles

The tensioning line is dead ended on the port side and runs aft, through the pad eye on the starboard side to a clutch in front of another Antal thimble and from there the tail is long enough to go to any winch.

The stay is tensioned by a 4:1 tackle running through Antal thimbles

The stay is tensioned by a 4:1 tackle running through Antal thimbles. Since the line is not required to be adjusted all the time, the thimbles are perfect. They are light, strong, in-expensive in general and particularly when compared to a ball bearing block of equal strength, the latter by perhaps a factor of 10:1.
The knobby ball of cordage connecting the stay to the top thimble is a “soft shackle” an increasingly widely used device for attaching anything to something else, as one would with a stainless shackle

There are a pair of running backstays connected to the spar.

The running backstays are attached to the mast just below the upper spreaders and opposite the point where the inside stay connects to the spar. This is high enough that with the third ref in, the head of the sail is below the runners. The end of the boom is far enough forward that both runners can be set up and the boat can be gybed and tacked without handling the runners. An extra insurance policy on hard conditions.

These are tensioned by a 2:1 tackle led through Antal thimbles, to a clutch, thimble and again with enough tail to get to any winch.

I used himbles again on the flying part of the runners: They are light (does not hurt so much when it hits you in the head….)strong & inexpensive-A trifecta that is hard to beat.

The running backstays are led through a thimble secured on the transom and forward through a clutch to another thimble permitting any winch to be used to tension them

The serendipitous aspect of the runners and where they land in the spar is that with the third reef in the mainsail the head of the sail is below where the runners attach to the mast AND the runners are sufficiently aft of the end of the boom, so BOTH runners can be set up when it is really howling and the boat can be tacked or gybed without attending to the runners. In this configuration the assumption is the inside stay will be deployed so the spar has another level of security to defend against damage.

The runner tails are dead ended on the same chain plate as the standing backstay, led up through the flying part of the runners, back to a thimble and forward through a clutch, thimble and so to any winch available.

 

 

 

 

Solo Sailing technology-Vs. America’s Cup

The various technologies used in the America’s Cup, from Aluminium spars to synthetic cordage to plastic sails-Let alone 40 knot foiling cat’s, often leads commentators to remark that the trickle down technology is good for the average yachtsman.

Well, is it really?

Consider my monthly column for May in Wind Check Magazine

Larry’s Big Cats are a great look, but about as close to the average everyday sailor as a Le Mans car is to a Honda Civic.

Man Over Board

Much is written and talked about concerning the recovery of someone who is knocked or falls of a boat. Very little, zero as far as my research indicates, is written on how to not get overboard in the first place.

This issues washed into my brain as I was driving home from presenting a seminar on preparation for distance sailing.

I will be doing more on this subject soon but for now you can take a look at the highlights here

Vendee Globe: Macif ROI

With due recognition to the original report, Le Figaro paper in France, and without their authorization the following is a cut and paste of a translation from their website this morning. Translation was done by an on line gizmo, hence the odd grammar and syntax. Anyway it is better than my doing the translation….

In sum it reads to me as though in media “Hits” (total coverage?) the race itself has generated nearly 57,000 hits. Macif , a large French Insurance Co. is going to get the lions share of the Media coverage with pretty big multiples of its investment (e7.5) in the media coverage of THE race itself. The story reports that the ’12 Olympics recorded only 48,000 “Benefits” (Hits?-Presumably this is in France only.

BEGIN:

Saturday January 26, 2013 at 08: 00

Key words: Vendée Globe , Banque Populaire , Macif

By Figaro boating

The insurance group has invested € 7.5 million over 4 years to win the biggest event in racing in France.

Never the Vendée Globe will have received media coverage as beautiful. A godsend for sponsors, Macif, who should win the best share of the cake. “Vendée Globe is an event apart, which enjoys a very high media exposure, explains Virgil Caillet, Director of KantarSport. The departure had never also publicized. The race is better than in 2008 because the TV landscape has evolved, and cameras to enhance the interest. It is a race that we want to follow.

Indeed, the departure has received coverage up 68% from the previous edition, which is due to increased TV coverage, linked to the arrival of new channels. The latest edition of the Vendée Globe had registered 56.738 benefits, including subject 16.272 TV subject 18.042 radio and 22.424 articles in the print media, to deliver advertising 144 M€. By way of comparison, London Olympics have generated 48.000 benefits, all media confused on one month. “There has been a relatively quiet Vendée Globe, with enormous pressure initially and aborts initially. Then, the pattern of race settled, with a duel between the first two. There has not been dramatic event as in the previous edition, which generates a lot of benefits and an immediate media impact. Should also have a media weight for two weeks. “The Pack behind is very tight, it created the suspense”, he says.
A costly but effective sponsorship

“This kind of race brings two main things to the sponsors: high media exposure and a strong recovery.” This allows the brands to develop their memory. It is a costly but effective, additional sponsorship to advertising. Memorization is stronger in moments of emotion than as part of an advertising campaign.

“With the sail, it is a positive theme of courage, innovation, self-transcendence, which is not the case of all sports. If the benefits of Macif, which has invested 7.5 M€ in four years, are not yet known, they should be higher than those of Foncia, winner in 2009. The sponsor of Michel Desjoyeaux had seen its memorization rate advance from 49 to 68% for a valuation of 12.9 M€ only on the race. (My highlights)

Enhancement of Veolia, 2nd, had exceeded the 6 M€. Mid-January, Macif had registered 20,000 benefits for 250 daily impact all media alike, against 18 to 19,000 for Banque Populaire. “There is always a bonus to the winner, even though Banque Populaire should have good impact as Armel Le Cléac ‘ h has long been at the top.” The difference is always upon arrival”, adds Virgil c p.

Macif and Banque Populaire should hit the jackpot, other sponsors, who had much less substantial budgets, should also make their own. “The world does not start to win. Some skippers are developing strategies to enable their sponsors benefit from a great visibility. This is the case of Tanguy de Lamotte (Initiative-heart), which was staged in videos, or ink, Allesandro di Benedetto (Team plastic), said Virgil c p. This kind of communication strategy that is taking place in the heart of the race there was no or little before. The media focus on the facts of race or dramas. Need to find a way to exist otherwise “. The disqualification of Bernard Stamm, who has caused much ink, should Meanwhile allow Cheminées Poujoulat recording beautiful benefits nevertheless.

 

Alex Thompson does the right and good thing

So the “Alex Dilemma” seems to have diffused a bit.

He gets to be the good guy and demonstrate that it is possible to be a gentleman and competitive at the same time. Frankly that is a relief.

He looks to be able to take his Third and perhaps an 80 day Voyage too (Yogi Berra rule though is sill in play)

The latest report on the VG site reports Thompson lightening the pressure on the GO pedal so as to stay within Jack Aubry’s proverbial  biscuit toss of JP Dick until it is clearer what the impact of the conditions out there for the next 24-30 hours are really going too be.

JP Dick has a good man at his back, or at least close enough to his port  side, that if he submerges the Windex, he ought to not have too long to wait for part of the Cavalry to arrive, and well dressed they will be to boot. Not quite sure about the drill for recovering someone in the conditions they may be forced to face though. My guess is that a 60 will not be manageable, have steerage way, at anything under about 5-7 knots of boat speed and so getting a line to JP, without fouling one or both boats and then getting JP aboard….well lets not get too far down that track.

I guess this is one time that both skippers would be glad to not have deck spreaders.

Position wise, as defined by DTF, Alex is now, 3 miles ahead of JP, but 40 miles roughly to the north of him. Both are still SW of the Azores.

The leading edge of the front with the Big Wind, is about 350 miles to their NW.

The BBC High Seas forecast maintains Storm Warnings for 6 areas.

I wish this race would hurry up and end-I gotta get back to work….

Bon Courage.