TUNE YOUR RIG FOR OUTRIGHT SPEED European Tuff Luff Version

J/111 Tuning Guide Solutions for today’s sailors 2

The J/111 is a sleek, speedy, We hope you enjoy your J/111 Tuning Guide. North class representatives one-design 36 footer that is the ultimate day , and personnel have invested a lot of time to make this guide as helpful as racing and weekend cruising possible for you. Tuning and trim advice offered here have been proven . over time with results in the class. J/111 is an easy-to-handle, North has become the world leader in sailmaking through an ongoing comfortable sailboat that accelerates quickly, slices to commitment to making faster, lighter and longer lasting. We are windward at 7+ knots and equally committed to working as a team with our customers. hits double-digit speeds downwind. Performance As always, if you have any questions or comments we would love to hear to date in a wide variety of sailing conditions has  been from you.Please contact your Offshore One Design class representative. nothing short of remarkable Sincerely,

Ken Read President North Sails Group

Equipment Required Contents Updates

Loos Gauge RT-10M (V1 and Pg. 3 Setting Up the Rig North Sails is constantly D1 shrouds) refining tuning techniques Pg.3 Calibration and rig settings as we and our Loos Gauge PT-2 (D2 shrouds) customers gain experience Pg.4 Mainsheet Tune in individual classes. This 30m tape measure ( information is shared among Pg. 4 Trim pin-to-pin) North staff worldwide. Pg. 4 Mainsail Primary Controls 5m steel tape measure ( While this Tuning Guide heel) Pg. 5 Downwind Mainsail Settings provides a giant step toward achieving competitive Rig spanners (adjustments) Pg. 5 Trim speed in your class, be sure to contact your North Pg. 6 Spreader Marks representative about the latest J/111 tuning Pg. 6 In-Hauler and Jib Car Settings developments.

Pg. 6 Jib Trim Example Jeremy Smart Pg. 6 Downwind (J/111 North Sails Class Leader) [email protected] Pg. 7 Tuning Guide 07867 805846, Pg. 7 Worldwide Care

J/111 Tuning Guide Solutions for today’s sailors 3

Fig. 2

Fig. 3

Fig. 1 Fig. 4

The J/111 boat heavy airs winding the forestay shorter The J/111 is a relatively light boat which will enable you to put more on makes it very receptive to positive and bend the rig efficiently and in the trimming. It is imperative to have the sail light airs lengthening it will enable you to trim spot on but also the fore and aft keep depth in the sails to keep the power weight trim correct and whichever team on. Take your rig tune seriously. Keep does this the best will be rewarded with whoever adjusts the rig the same from the best boat speed. the beginning to the end and you will be far more accurate all season long. It is one Up to 10 kts the J/111 is always looking for item on our list we can get right before we more power so keep the sails powered up, leave the dock. focus on building speed efficiently out of transitions (tacks, gybes, ducks and mark roundings) and don’t over trim or you can Calibration easily kill the speed. We strongly recommend you calibrate every available moving piece onboard the Rig Setup J/111 and then take notes of which settings Once the rig is tuned to our North Sails are fast in which conditions, this is the only BASE setting (see Tuning Guide on page way of accumulating good data for your Fig. 1 Rig adjustment 7) you should be aiming to adjust the rig boat and being able to repeat fast settings. for the prevailing conditions each day. The Fig.2 Vang Tension top teams will adjust this between races, as conditions change. This will make a huge Fig.3 Jib Tension difference to your sail setup and ultimately Fig.4 Backstay Ram your boat speed around the track. In

J/111 Tuning Guide Solutions for today’s sailors 4

Fig. 6

Fig. 7

Fig. 5 Fig. 8

Calibration continued Generally the jib is trimmed and set with Only once you’ve calibrated everything only small adjustments over the course and recorded the data you can then be of a leg, the main trimmer is able to make confident in how to repeat a fast setting. quick adjustments for immediate response to the changing conditions – never stop All of the settings are crucial at the top working...You can always go faster. level but a bare minimum you should create a cheat for different wind Mainsail Primary Controls strengths with the following information: Mainsheet Control for leech tension and • Jib halyard tension twist profile. The mainsheet should be • Backstay position trimmed so the leech end top batten is • Jib car position parallel to the . We are looking for • In-hauler setting the top batten telltale to be flowing 80% of • Jib sheet location the time and stalling 20% of the time. This • Spreader mark number is a good way of achieving the best mix of speed vs. pointing. To increase speed, ease Mainsail Trim the mainsheet to ensure telltales are all A well trimmed main will provide speed, flying. (This will reduce pointing ability). To pointing and balance to your upwind pe increase pointing get telltales to stall 50% Fig.5 Mainsheet Course Tune formance. We have many different ways of the time. (This will reduce boat speed). to control the mainsail and we need to Fig.6 3di RAW main, 10kts 50% backstay use all of them to make the sail work Mainsail Trim Key features on the J/111: properly across the entire wind range. Set Upwind, keep the boom on centre-line Fig.7 Traveler control the mainsail with plenty of twist as the using the traveller. breeze builds. Fig.8 Traveler Movement

J/111 Tuning Guide Solutions for today’s sailors 5

Backstay This controls mainsail depth. As Vang This is primarily a downwind control. the breeze builds, use more backstay to Upwind, set the mainsail up using the flatten the mainsail, use less backstay in main sheet as advised above and then choppy seas to help power up the boat. take the slack out of the vang to prevent If you have too much backstay you will see the sail twisting open too much when you over-bend creases in the mainsail from clew ease the sheet. We are looking to keep the to luff in the lower third of the mainsail. boom parallel to the deck so if overeased Ease the backstay off until they are just not the boom end will be in the sky and the showing. If you can’t flatten the mainsail mainsail leech will appear very open. enough with backstay because the ram is maxed out then you have the wrong rig Downwind Mainsail Settings tune...shorten the forestay. 1. Ease main halyard downwind and ensure is off. Backstay use 2. Ease vang to keep top batten parallel with the boom. wind speed Backstay 3. Ease to deepen the foot. 4. Ease backstay to straighten mast. 0 > 4 kts 0 - 25% Jib Trim 4 > 8 kts 25 - 50% Jib Sheet Coarse control for leech tension and slot shape. 8 > 12 kts 50 - 80% Jib Halyard Sets the sail depth and 12 > 16 kts 80% - 90% position. Increase halyard tension incrementally as the breeze increases. 16 +kts +/- max Jib Car Controls sheeting angle and depth in the sail foot. Car forward in light airs to Cunningham Only use cunningham to add depth and power, car aft in heavy airs de-power the mainsail in over 16 kts of for a flatter foot to reduce power. windspeed. Do not use it to take out small horizontal creases in the luff, if you Approximate Jib Car settings are doing that then your main halyard has slipped. Code 1 4950 mm (16.24’) from = LM Outhaul Controls depth in foot of the mainsail. Flatter water = tighter outhaul. Code 2 5050 mm (16.57’) from tack Chop and waves = looser outhaul. In 10kts = MH + on the J/111 the mainsail foot should be just tight along the top of the boom, Code 3.5 4750 mm (15.58’) this will need tension as the breeze = HWJ increases. Sub-10 kts upwind you can ease the outhaul but no more than a fist-width gap between the boom and mainsail at In-Hauler Used in conjunction with the jib the mid-point. sheet for slot shape and power control.

Main Halyard Controls luff tension and Backstay draft position. It is key is to ensure that Sets forestay sag to control depth in the Important notice when sailing upwind the halyard is all entry of the jib. If you aren’t busy trimming, the way to the top at all times. We are the only possible way you can looking for a nice smooth luff, too tight Spreader Marks be making the boat go faster and the draft is too far forward, too loose We recommend that you put marks on is to have your weight in the and the draft is too far aft causing the the spreaders so that you can repeat the right place... Hike hard. sail to be deeper and increasing drag. trim settings easily. White tape on the

J/111 Tuning Guide Solutions for today’s sailors 6 spreaders should be in the following Downwind locations: The North Sails A2, your running , is for 0-18 kts true wind speed and for 18 Top Spreader kts+ you should be using your North Sails • 710 mm outboard from mast. A4, your heavy running spinnaker. The point at which the boat “gets up and goes” Bottom Spreader really depends on sea state but most of the • 860 mm outboard from mast. sailing we do in the J/111 will be about going Fig. 9 • 1060 mm outboard from mast. as low and as fast as possible.

In-Hauler and Jib Car Settings Downwind Light Airs In very light air (0-8 If the helm is struggling to build speed kts) it is all about keeping the boat moving, because of the sea-state you need to ease this is a hard mode as the boat is always the in-hauler outboard to allow the to accelerating which takes time but it is all too come down. In very flat water you can in- easy to “crash” by sailing too low and lose haul tighter for increased pointing. In heavy all your boatspeed quickly. You will need to air, if you see too much backwind in the induce some leeward heel using the body mainsail, ease the in-hauler outboard. weight onboard, with 2-3 bodies in front of Fig. 10 If you have overstood the windward mark, the shrouds. In super light wind consider your first control to ease is the in-hauler so having some crew down below to reduce the helm can be fast in a bow-down mode. windage and pitching. In-hauler settings Downwind Medium Airs From 8-18 kts all the crew must be on the windward rail with Code 1 600mm (1.97‘) from the between 1-3 bodies in front of the shrouds = LM centerline (inside hand-rail) to keep the transom out of the water, weight shifting aft as the breeze increases. Code 2 660mm (2.17‘) from the Fig. 11 = MH centerline (at handrail) Downwind Heavy Airs 20 kts+ all weight aft on the windward Code 3.5 700mm (2.30‘) from side to keep the boat at max possible centerline (outside handrail) = HWJ speed and planing. The gybe in 18+ is the hardest manoeuvre onboard the J/111. Setting up for it, being ready, and choosing Jib Trim Example your moment is the key. Have the new Code 1 Jib (J1) 8 Kts Flat Water spinnaker sheet pre-pulled and the old sheet prepped so it will release. Have your Fig. 12 Why is this sail fast? strongest crew member pulling on the new • Top leech telltale streaming. sheet at the shrouds. On the exit of the • Forestay sag for power (from red line). gybe the trimmer must be ready to ease • Lower leech on inside bottom and crew must get to the windward side spreader mark. and aft promptly to keep the rudder in the • Slight horizontal creases in luff. water. This takes repeated practice to get it • Luff telltales just lifting. right and to be able to use it confidently in a race situation. Jib Leech Tension/Twist Settings: Code 1. Jib (J1) Just outside top spreader Heavy Airs Gybe Tip: mark/on inside bottom spreader mark. Make sure you have a crewman ready to Fig.9 Spreader marks release the vang once the mainsail fills on Code 2. Jib (J2) Just inside top spreader the new gybe. Fig.10 In-hauler setting mark/just inside bottom spreader mark. Fig.11 Jib car setting Code 3.5 Jib (J3.5) Outside the top Fig.12 3di RAW J1, 8 kts spreader mark by 100mm/on outer mark on bottom spreader.

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Tuning Guide

This guide is based on the experience of a number of North Sails experts, owners of J/111s and their trimmers. It is ‘just’ a guide. We all know ours is the most complicated sport in the world and any number of factors can affect our performance. Use these numbers as your starting point from which you can improve, use your own calibrations and settings to give you and your team an edge going forward.

J/111 Rig Tuning Update 2016 F Forestay Pin-to-Pin 15.14m

TWS V1 D1 D2 Mast Butt Forestay Arc Jib Choice

0 > 4 kts 3 turns off 2 turns off Base Base 7 turns off Code 1

5 > 9 kts 2 turns off 1 turn off Base Base 4 turns off Code 1

10 > 14 kts BASE RT-10 65 RT-10 22 PT-2 25 435 225 Code 2

15 > 19 kts Plus 2 turns Plus 1 turn Base Base Plus 5 turns Code 2

20 + kts Plus 4 turns Plus 2 turns Base Base Plus 8 turns Code 3.5

*Important Note: The European built J111’s have different bottlescrews to the US built boats. This tuning guide is for European boats.

Worldwide Service At North Sails, we view each sail purchase All North Lofts offer: as the beginning of a long and rewarding relationship. We base this expectation on a • Annual checkover strong service commitment that includes • Winter storage preventive maintenance, sound advice, • Retrofitting education and expert repairs. • Educational • Sail washing North Sails is a network of more than 100 • Sail tune-up lofts in 34 countries around the world. Each • Seminar resources offers knowledgeable, friendly, personal sales and service. Our size and worldwide reach also means North has the world’s most expansive sailmaking database. It would be hard to find a sailboat for which we cannot make a fast, durable and long lasting sail.

J/111 Tuning Guide Solutions for today’s sailors 8

The North Promise

North Sails proudly stands by every product it makes. Our years of innovation, research and testing make us confidentin  the high quality of our products.

This is why with every Cruising, Racing or One Design sail we offer free sail care and repair, honoured anywhere in the world through our network of service locations.

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For more information visit the North Sails Offshore One Design website at:

offshoreonedesign.com

For any question you may have on tuning your J/111 for speed, contact our experts:

Jeremy Smart [email protected] 07867 805846,

For other useful information visit the J/111 class website

www.j111class.org

J/111 Tuning Guide Solutions for today’s sailors