2001

June 24, 2002

This guide is from North Sails. I scanned and OCR'd it. In spite of proofreading, there may be some typos and other errors. If you find any, let me know.

Dave Roseman


ENSIGN TUNING GUIDE

 

MAST:

1)       set the rig up with the headstay at 26’ 2 1/4”

2)       adjust the step so the mast rests against the Partners and chock It centered and also fore and aft.

3)       Set uppers and Forward lowers with “Loose” gauge at 40. (with slack backstay) This will generate about 1 1/4” of pre-bend.

4)       Set Aft lowers at 24-26 (with slack backstay)

5)       Go sailing and check the mast for falloff. The stiffness of the masts vary! With about 12 knots true and the headstay at 40, the Leeward upper shroud will just begin to go slack. You may have to adjust the uppers or FL to keep it in tune (upper from 35-42).

 

 

 

 

FORESTAY:

1)       Set up the “Loose” gauge on the forestay.

2)       Make up a paint stirrer or ruler for marking the backstay position.

3)       Apply tension to backstay and place marks on your guide at headstay tensions of: 20,25,30,35,40. This will reference to wind strengths for Genoa and main trim.

               4)     HEADSTAY TENSION                                             TRUE WIND SPEED

                                 20                                                                         0-3

                                 25                                                                         3-6

                                 30                                                                         6-12

                                 35                                                                         10-15

                                 40                                                                         15 and up

 

 

SAIL TRIM

 

 

MAIN:

 

1.      Fairly straight forward using normal trimming knowledge.

2.      Use traveler to keep boat flat when sailing in higher winds, approximately 4-6” of movement. After that go to the sheet. In light air, pull the traveler up to windward so that the boom Is about 1” to windward of center.

3.      In drifting conditions use the sheet and traveler to


induce lots of twist.

4.      Maybe the most important Item for the main is to not worry about the bubble behind the mast. It is caused by the main arid headsails working together. If you trim the main too high to windward, you will drive the boat sideways!

 

As always, make sure your main has tell tales on the leech before leaving the dock and use them when. Also, your top batten is the second best stall indicator.

 

SAIL TRIM

 

Bring a magic marker along when you do your test sailing.

 

GENOA:

 

1)      First item of business is to cut the spreaders down to within 1” of class minimum.

2)      Drill your genoa tracks so you have holes every 1/2”

3)      Go sailing in about 12 knots true wind. Set lead so that the genoa touches the shroud at the deck and up near the mast. Check the tell tales for proper break. If all break even, then mark this spot as the mid-range point.

4)      The range of track position for the Genoa will vary from

1” forward, to 2” back. For 0-5 knots the lead should go forward 1” and keep the leech can be as close as 1/2” to the spreader with the lead in the mid range position.

 

Once past 14 knots, the lead should be back 2” and the leech can be eased away until it reaches 4” away in about 18 knots

5)      Use the Genoa from 0 to gusts of 20 knots true.

 

 

#2 GENOA:

 

1)      Set up the lead position as you did for the genoa. The

#2

should trim in tight to the shrouds. Mark the track as we did for the genoa. Similar rules apply for the #2 for twist and lead changes, but to a lesser degree of change.

2)      This sail is a top performer mit’s wind range! Be careful to use it in the correct conditions. It works best when the wind is gusting from the high teens to low twenties. If the winds are sustained above 20, then switch to the blade.


 

BLADE:

 

1)       The lead position (tracks) are placed too close to the center line of the boat. This chokes the slot and makes the boat slow. Cure: never trim the sail super tight! If In doubt or going slow, ease it out!

2)       Never trim the upper batten inside the upper shroud, as this is a very good Indicator that you are violating the above rule.

3)       The tracks should be drilled with the same 1/2” spaced holes as the genoa track. You should set you mid—range mark In about 12-15 knots true wind.

4)       Twist is the Key to making this sail go, so set your tell tales with the top tale breaking first.

5)       The Blade is to be used when the wind is sustained 20 knots or more. When you have big seas and high winds, you may think you want to use the Genoa, but don’t! Using the Genoa in the swells will not allow you to steer through the seas. The Genoa will only cause you to heel too much if you misjudge a puff or feather incorrectly.

6)       Replace the jib when it gets tired! The sail will slow you down dramatically when the draft moves aft. This is due to the backwind into the main, because of the narrow sheeting angle.

7)       If class rules allow, use a two to one purchase on the sheet. This allows finer adjustments by the crew with less effort.

 

SPINNAKER:

 

1)       Fairly standard trim works well for this sail as well. Follow the old rules of not over trimming and proper pole height.

2)       The Ensign can sail fairly square to the wind with the spinnaker arid so be careful not to sail too high on your gybing angles. The lighter the air, the higher the angles you can sail.

3)       Use tweakers on your sheets, they help when gybing and in lumpy seas.

4)       On windy and wet days, try to keep the spinnaker ad dry as possible. The Nylon stretches much more when wet and that is the time when you want a flatter chute.

5)       You can use your genoa and jib under the spinnaker under certain conditions. Genoa in over 15 knots and the jib in most conditions. Remember to take them down before the gybe!

 

 


 

 

OTHER SPEED FACTORS:

 

 

Weight:           Keep the weight as for forward as possible. Sail the boat as flat as possible. When the boat is flat, the helm will be neutral and that is the fastest way to sail the boat.

 

Preparation:                  Keep the boat at minimum weight. Make sure that all the running rigging is in good shape. Make sure all sail controls work freely and without much effort. Halyards should be of lowest stretch material allowable by the class rules. The mast step should be strong so as to keep the rig tension in lumpy seas and high winds.

 

Practice:              Nothing beats good practice. Go out in different conditions and go through all of the things you will do in a race. On race day, fly the spinnaker before the race (keep it dr~~) to warm up. Do several tacks and gybes before the start.

 

Have Fun:             We race to learn and get better at sailing. Remember to help out the other guy when you can, because the better he or she gets, the harder they will push you! Always remember to yell starboard with a smile!

 

GOOD LUCK AND ENJOY!