Tuesday, June 2, 2015

Cheating the System

Often, you may notice while sailing that your top third of your headsail luffs when reaching, no matter how much tension you place on your sheet or where you position it on the track. When close hauled, a non-overlapping is rigged normally using jib sheets attached to the primary clew, and then led through a sheet block attached to a short genoa track, then back to the cockpit.  But this setup has a limitation.  When the boat bears off onto a reach, you typically let the headsail out.  This induces a loss in power as leech twist forces the top 3rd of the sail to open up, decreasing flow, and rendering this part of the headsail luffing and useless. 

Recently, we solved this weakness by adding a second clew, located higher on the leech.  Raising the point of attachment means the sheet is pulling more “down” on the leech.  This replicates the concept of moving the genoa car forward.  The setup involves positioning the secondary clew (in this case, a 2-inch Vectran loop) about 24-inches above the original clew higher along the leech of the sail.  With the original clew still connected by the primary sheet, the fixed line will help extend the leech of the sail to reduce twist, re-engage the top third of the sail, and generate more power while sailing through 60 to 90 degrees of apparent wind.

Like a barber-hauler that pulls the sail out, or a long genoa track that allows you to move the car forward, this is a way to get the most power out of your sail and extend its life.  For self-tacking jibs on tracks in front of the mast, boats (mono or multi) with very short genoa tracks, or for a smaller sail that already sheets to the front of the track you have, this addition can help you enjoy your headsail more and get the most out of it.

Written by Owen Kaufman, Super Sailmakers

Thursday, May 28, 2015

Feel the Breeze & Go Downwind Faster!

The Boy Scouts say ‘be prepared’. This motto constantly applies to sailboat ownership, and whether you own a cruising catamaran or a monohull, having access to the right sails at the right time can save you time and effort, and often peace of mind.  Basic sail inventories include a mainsail and a headsail and this ultra-simple configuration can take you anywhere, though sometimes slowly and inefficiently.  At some point, usually when sailing downwind, you need to increase your boat's performance to get to your destination more quickly or enjoy the trip more.  You can achieve these goals with an appropriate offwind sail. 

Selecting an offwind sail can be daunting as dozens of variables can dictate what type of sail you need for your particular application and in what conditions you use this sail when sailing at a certain angle.  Boiled down, there are two types of offwind sails: reachers and spinnakers.  These two categories are broken down into two other subcategories: screechers and Code Zeros for reaching, and asymmetrical and symmetrical spinnakers for sailing more downwind. With these in your inventory, the void between 90 and 270 degrees of apparent wind is covered and you rest easier knowing that you are prepared for sailing at all angles of the compass.

Spinnakers take full advantage of the forces generated by the wind, enabling boats to move down range at greater speeds than boats powered by a simple mainsail/headsail configuration.  Generally constructed using lightweight nylon, they are designed to operate across a broad spectrum of different wind conditions and are exceptional in light wind conditions.  They are flown on a non-permanent basis, meaning that they are flown out of sailbags, doused, and stowed when not in use so as to reduce the amount of time they are exposed to harmful UV rays.  Today, spinnakers can even be set with a furler so that they can be furled, detached, and stowed as an independent system once the sail is no longer in use.  Although they require a little more attention, and perhaps a helping hand, spinnakers fulfill the role of efficient downwind sailing.

In order to determine the type of spinnaker for your boat, it is important to look at what your boat is set up to accept.  Monohulls are generally limited to the use of asymmetrical kites, unless they are rigged to accept a symmetrical spinnaker with a pole and the lines required to control the kite.  Catamarans can accomodate either asymmetrical or symmetrical sails, depending on the intended use.

Asymmetrical Spinnakers
Asymmetrical spinnakers are large, round sails with a luff that is longer than its leech.  Attached to the bow, or the to the weather hull on a catamaran, the sail is projected far in front of the wind shadow created by the mainsail, and with a very large surface area.  These sails can generate a large amount of power while retaining their structural integrity while beam or broad reaching.  They are easy to stow, lightweight, and compressible so that they take up less room for their flying size.

Symmetrical Spinnakers
 Monohulls with spinnaker poles traditionally utilize symmetrical spinnakers for running dead downwind.  This is achieved with a sail that is square to the pole, with large shoulders near the head of the sail, and the ability swing the pole from side to side in order to adjust to the wind shifts coming from behind.  It is possible for catamarans to accept symmetrical spinnakers as well – the kites are flown off gear affixed to the bows – allowing for faster downwind speeds and greater range of mobility. 

Reaching Sails

Screechers are flown like an asymmetrical kite, generally off of a bowsprit or the tack attachment point on the bow.  These particular sails are generally made from lower stretch fabrics, and are shaped with tight luff lines and with a body that is rounder than a genoa or jib, and but not nearly as round as a spinnaker.  The sail is flown when sailing between a close reach and a broad reach.  The result is a sail that helps stabilize the boat as it powers through waves when there is a need to sail just off the wind, but with the versatility of sailing with greater power downwind than with a genoa.

Code Zero
Code sails are generally used on a beam to broad reach in light to moderate winds.  Sailors often refer to these as their “secret weapons”, as they fill the role of a specific niche.  Code Zeros are generally made from laminate or Nylon materials, hoisted out of sailbags or on nonpermanent roller furlers, built with a larger roach area, and have a deeper profile.  From a glance, the sail is shaped like a very fat genoa but acts much like a spinnaker, providing a large amount of surface area.  In this sense, it cannot be flown close to the breeze like a screecher, nor will it go dead downwind, but it will bomb across a broad reach with ease.

The addition of an offwind sail will make a remarkable difference in how you enjoy your boat.  Beyond obtaining higher speeds, better performance, and greater range, there is peace of mind knowing that you are prepared to take on the seas, no matter the conditions.

Written by Owen Kaufman, Super Sailmakers

Thursday, May 7, 2015

2015 Hurricane Season Forecast

Meteorologists have published initial forecasts in which they suggest that the 2015 hurricane season here in Florida will be relatively quiet, following last year’s trend. Colorado State professors Dr. Phil Klotzbach and Dr. Bill Gray outline in a document released on April 9th that the “2015 Atlantic basin hurricane season will be one of the least active since the middle of the 20th century”, though they expect that an “El Nino of moderate strength” may develop this summer or fall.  The professors attribute this calm to cool sea-state temperatures in the tropical and subtropical western Atlantic where hurricanes form. 

Dr. Klotzbach and Dr. Gray have compiled annual hurricane records over the last 29 years, allowing them to produce annual averages based on weather conditions.  They estimate that 2015 will have only 7 named storms (median is 12.0), 3 hurricanes (median is 6.5), and 1 major hurricane (median is 2.0).  Last years’ record was 9 named storms, 8 hurricanes, and 2 major hurricanes.  The forecast also calls for a below-average chance of a major hurricane making landfall: an estimated 15% chance along the East Coast (average is 30%), an estimated 15% chance along the Gulf Coast (average is 30%), and an estimated 22% chance in the Caribbean (average is 42%).

 Dr. Klotzback and Dr. Gray remind readers that “Coastal residents are reminded that it only takes one hurricane making landfall to make it an active season for them, and they need to prepare the same for every season, regardless of how much activity is predicted”.

For more information on preparing your boat for a hurricane, review the links below:

Wednesday, April 15, 2015

Summer 2015 Youth Sailing Programs

Whether you are interested in learning how to sail or looking for ways to involve your kids in engaging outdoor activities this summer, now is the time to begin looking into and signing up for Learn to Sail Programs.  The nearly 100 miles of South Florida coastline between West Palm Beach and Coral Gables hosts several dozen respectable training centers that specialize in training youth and adults by providing on-the-water courses that drastically improve skills and sailing knowledge. Many, like Coral Reef Sailing Club in Coral Gables, offer classes that range from basic seamanship, to advanced race tactics, to training in the use of downwind spinnakers. There is truly something for all levels of knowledge.

Kids benefit from having the most opportunities to select from nowadays. Opti sailing – a proven “fast-track” method to becoming a skillful and capable sailor – is an excellent way to get your kids fired up while demonstrating sportsmanship and athleticism.  Many programs also offer less competitive “Adventure Sailing” that allow kids to let loose their inner pirate! Sailing camps enable kids to make friends while keeping them active for a greater period of time.

Below is a list of sailing clubs and institutions that we recommend:

If you have questions, or would care to add to this conversation, we invite you to comment below!