Blue Water Sailing June 2006 - Sailing Charters, Newport, Rhode
Transcription
Blue Water Sailing June 2006 - Sailing Charters, Newport, Rhode
SPECIAL REPORT: SEAMANSHIP SOLUTIONS FROM THE EXPERTS Blue Water Sailing TOP 10 J u n e 2 0 0 6 www. bws a i l i n g .c o m Special Report: WAYS TO BUILD YOUR SKILLS Seamanship Solutions from the Experts WHY WOMEN LOVE THE CRUISING LIFE PROFILE: WEATHER GURU HERB HILGENBERG J U N E 2 0 0 6 $4.99US $5.99CAN 0 09281 01862 06 9 BWS TESTS THE NEW TARTAN 3400 Seamanship Solutions 1 FIXING AN OVERRIDE IN 3 EASY STEPS 2 I t happens to even the most attuned trimmers, too many wraps around the winch when tacking, and they are left with an override that is impossible to budge. Trying to trim more often makes it worse, and removing wraps on a loaded line is downright dangerous. The trick is to take the load off the sheet, unwind the override and rewrap the winch. 1) Take a spare line and tie a rolling hitch on the loaded part of the sheet, forward of the winch. Many synthetic lines are slippery, especially if new, and might require a few extra wraps in the rolling hitch in order to get a solid hold on the sheet. 2) Lead the spare line to the aft cleat and take up tension. The spare line is going to take the whole load of the jib sheet. Make sure the rolling hitch isn’t slipping and has a good hold on the sheet. Then take up on the spare line as much as possible. You can make the line off or have a crewmember tend the line around the lobes of the cleat. 3) Slowly ease off tension on the sheet. The sheet will become slack between the rolling hitch and the winch as the spare line takes the full load. Unwind the override, rewrap the winch and take up tension on the sheet again, relieving the spare line. If easing the sheet doesn’t ease the override, take up on the spare line until you have created some slack between the rolling hitch and the winch. This might require leading the spare line around the aft cleat and to the winch on the opposite side of the boat. Blue Water Sailing • June 2006 3 53 SPECIAL REPORT 3 1 ADJUSTING JIB LEADS W Flat foot means move the car forward 2 54 hen the jib is rolled all the way out, use the telltales to adjust the jib car and find the perfect shape. 1) If the top inside telltale lifts while the others stream back, the car needs to move forward. If the bottom inside telltale lifts, the car needs to move aft. Jib trim becomes a lot more difficult when dealing with a furled jib with no telltales to offer trim suggestions. 2) If you leave the jib car in position, the foot will be overtrimmed while the leach will sag uselessly. The foot should always have some curve to it and never be completely flat and stalled out. By moving the jib lead forward you will return some shape to the foot of the furled jib. 3) You may also need to adjust the leech tension when the jib is furled. Be careful not to move the jib too far forward, which will result in a tight leech that cups in, and an over-full foot. Blue Water Sailing • June 2006 Seamanship Solutions BALANCING ACT Balance the helm to improve performance and crew comfort PROBLEMS The crew doesn’t like the boat to heel so much The autopilot and windvane don’t work as they should The boat is not as fast as her sister ships. SOLUTIONS Despite the dramatic photos you see in magazines and calendars of boats charging along with the rail under and the spray flying, sailboats are almost never fastest nor the crew happiest when the boat is overpowered and heeling too much. Nor will they be happy when the boat is underpowered as it rolls and pitches aimlessly in the waves. That is because the boat is out of balance—the sails over or under trimmed, the rudder too far over and the keel stalled. With the boat out of balance, the rudder will have to be turned off the centerline to compensate for poor sail trim. The more it is turned, the more drag it creates. And when the boat heels too far over, the less efficient will be the tracking and stabilizing effects of the keel and rudder. A boat with sails out of trim will heel too much (or flop around too much), will be difficult for the autopilot or windvane to steer and will be slower than her sister ships. Racers and veteran cruisers agree that on most points of sail Blue Water Sailing • June 2006 the rudder should have about five degrees of weather helm. This small angle gives the helmsman, the autopilot or windvane a positive touch on the rudder and a reliable point of reference to steer from. It also provides a slight lifting force when sailing upwind. Sail trim is the key. In general, start by trimming the headsail so the telltales stream evenly aft on both sides. Next trim the mainsail in with the traveler amidships until the telltales on the batten ends at the leech stream freely aft or until the luff stops luffing. If this produces too much weather helm, ease the traveler to leeward to remove twist from the sail and trim the sheet per the telltales. In winds over 15 or 18 knots, you may have to tie in or roll in the first reef in the main and then adjust the traveler and sheet for a balanced helm. If you experience lee helm—10 degrees of wheel to leeward—the jib and main are out of synch. Trim the jib to the telltales and then the main and traveler. In light winds you may have to haul the traveler to windward—enhancing sail twist—while in heavier breezes you may have to reef or roll up some jib to be in balance with the reefed mainsail. Practice balancing your boat’s helm and watch the crew relax when sailing to windward, see how much better the autopilot and windvane work and have fun keeping up with or beating your boat’s sister ships. 55 SPECIAL REPORT Preventers, brakes and vangs How to keep the main under control downwind T here is nothing like running under full sail before a steady breeze, making miles toward landfall and feeling your boat tracking along at hull speed. But downwind sailing always carries with it the threat of an accidental jibe that at the least can be a nuisance and at worst can cause serious damage to the mainsail and rig. Also, when running before a strong breeze the boom tends to lift skyward, increasing the chance of a jibe and adding so much twist in the sail that it becomes inefficient. Most modern cruising boats are equipped with a rigid vang on the main boom that can be used to control leech tension and sail shape. If your boat does not 56 have a rigid vang, it makes sense to retrofit one. (Harken, Forespar, Hall Spars and others make quality vangs.) But dead downwind, the vang won’t prevent a jibe and won’t keep the mainsail from slatting when the waves are up. Two simple solutions can tame the downwind main. The first is a simple preventer vang that is rigged from midboom to a pad eye, amidships cleat or toe rail to leeward. A three-part tackle fitted with heavy snap shackles and with a line long enough to lead aft to the cockpit works well. Cinched down, the vang will flatten the leech and will keep the main boom from jibing should the sail fill aback suddenly. To keep the boom firmly in place when all the way out, rig a preventer line from the boom’s end to a bow cleat and tighten it down. If you are running in the trade winds for days on end, it helps to rig a standing preventer on the boom (just shorter than the boom) with a eye spliced in the end. Rig lines on both side decks running from the cockpit through snatch blocks on the bow that can be attached to the standing preventer as you jibe the sail from one side to the other. Lastly, a Dutchman boom brake, a patented preventer that rigs from mid-boom to both side decks, is an excellent tool for preventing sudden jibes and helping you control the boom when you mean to jibe. Blue Water Sailing • June 2006 Seamanship Solutions SIMPLIFY WITH SINGLE-LINE REEFING 2) Lead the reef line through the bottom of the boom sheave near the gooseneck and up to a block attached to the cringle. 1) Put blocks at the clew points by either sewing a webbing loop into the sail or putting a shackle through an existing grommet for the reef line. It is important that the end of the reefing line is attached to the boom directly under the clew for the reef. 3) Use fair leads where necessary to lead the reefing line to the base of the mast and back to the cockpit. 4) Ease the halyard and haul on the reef line for a tidy reef. S ingle-line reefing makes it safe and easy for a single watchstander to reduce sail area without ever leaving the cockpit. And with a few alterations, most boats can turn their traditional reefing rig into a single-line system with a minimal investment of time and money. One of the most important considerations in a smooth-running single-line reefing system is friction. In order to minimize friction, use high-quality blocks throughout. If you try to use the existing cringles and rings, too much friction will build up, and it will be impossible to get the clew and tack tight enough from the cockpit, not to mention the wear on the line. 2 4 Blue Water Sailing • June 2006 57 SPECIAL REPORT WING and WING How to set up the pole(s) to get the most from your downwind rig M ost of us carry whisker poles for running downwind wing and wing. When running along the coast for a few hours or even overnight, a whisker pole (such as a telescoping pole from Forespar) works fine and can be set easily by one person without a topping lift or guys. With a roller-furling genoa, just roll in the genoa, attach the pole to the mast, clip in the windward sheet, push the pole forward and then trim in the sheet until the sail is flying pole-out to windward. You may have to push the pole all the way to the genoa’s clew, but often it will slide forward all on its own. Dowsing the sail and whisker pole requires rolling in the genoa with tension on the genoa sheet and letting the pole down from the clew onto the lifelines by easing the sheet all the way. But in heavier breezes and when running for a few days in variable conditions, it makes a lot 58 of sense to treat your downwind rig as a system set up to control the sail and the pole no matter how blustery the breeze and bumpy the sea. And there are times—like 3 a.m.—when you want to control the sail and pole without having to schlepp around on a wet foredeck. For a durable and reliable downwind rig, a full-length spinnaker pole (or two) will be stronger than a simple telescoping whisker pole. A track and end fitting for the pole on the mast, plus a topping lift for the pole allow you to adjust the pole height at both ends. In general, you want the pole level when the genoa is fully rolled out and rigged to the pole to windward. Some veteran voyagers like to mount two poles, one on each side, so you never have to jibe the pole itself when you jibe the sail and can simply switch from pole to pole as the genoa switches sides. Scott and Kitty Kuhner, who have twice circumnavigated in the trade winds, set up their two poles so that the inboard ends can be hoisted up the mast track and the outboard ends can be attached to the lifelines when not in use (see Practical Passagemaker, BWS November 2005). The poles are always ready to deploy and can be stowed away easily without detaching them from the mast. With a topping lift, the out- Blue Water Sailing • June 2006 Seamanship Solutions board end of the pole can be controlled vertically. But to control the pole in the fore and aft dimensions, it is necessary to run a foreguy and after guy. The foreguy should run from the cockpit, through a snatch block at the bow and back to the pole end. The after guy should run from the cockpit, through a snatch block on the aft quarter and then to the pole end. With both guys and the topping lift set up, the pole is immobilized and then can be trimmed forward or aft from the cockpit with the guys. If you are rigged with two poles, the fore and after guys should be set up both to port and starboard. This all sounds like a lot of new lines running into the cockpit, so it really helps to rig line bags in the cockpit or on the lifelines next to the cockpit to capture all the loose ends. If you will be doing a lot of downwind sailing—and with luck you will—adding line stoppers or clutches (Spinlock, Lewmar and others) for each guy will keep cockpit cleats and winches clear for the genoa sheets and other uses. To set the genoa with a fully guyed pole, lead the sheet through the outboard pole end and then hoist the pole with the topping lift to the sail’s clew (with the sail still rolled up). Release the roller-furling control line and trim the windward sheet, drawing the sail aft to fill it. With the sail drawing, trim the fore and aft guys and the sail is set to run for days on end. The beauty of this rig is the ability—at 3 a.m.—to react to an approaching squall by rolling in as much genoa as you like while controlling the pole from the cockpit. And, if the wind continues to build, you can dowse the mainsail completely and continue running under ever-reduced headsail confident that the sail and pole are always in your control. The rig also can be used to control the genoa when on a power reach in lumpy conditions. The only difference will be that Blue Water Sailing • June 2006 the genoa and main are set on the same side; with the pole controlling the genoa’s leech you can prevent the sail from flogging and popping as the boat zigs and zags through the waves and you can control the genoa’s leech to reduce the twist at the top of the sail that renders half the sail useless. At the end of a passage you can roll the genoa away completely, trim the guys to hold the pole against the rolled genoa and simply leave the pole up there while you prepare and deploy your ground tackle. Safety and comfort at sea are directly related to how well you can control your sails in a wide range of conditions. Rigging a downwind system for running wing and wing with a topping lift and fore and aft guys permits you to harness all the power of a big genoa without the hassle and possible dangers of dashing around the foredeck. 59 SPECIAL REPORT HEAVING-TO Master the art of heaving-to and give yourself a break in light and heavy conditions alike W hether stopping to rest, waiting for daylight or riding out a gale, heaving-to is an invaluable technique that allows you to slow the boat and restore a seakindly motion with minimal leeway. While heaving-to can be used as a means of convenience during calm conditions, it is an important storm tactic to have at your disposal in heavy weather. In light conditions heaving-to can be used to avoid landfall at night or in poor conditions. On long passages many shorthanded crews report regularly heaving-to to ease the motion during meals, when undertaking maintenance in the engine room or even to catch up on sleep. In heavy conditions heaving-to will allow you to hold your position without giving up gains to windward. When conditions get too rough and the crew too fatigued heaving-to will ease the motion and relieve the helmsman. You can hold your position to avoid the worst sector of a 60 weather system, or ride out a frontal passage and wait for more favorable weather behind it. Practicing during moderate conditions will help you learn how best to balance your boat when hove-to. Every boat will react differently to sail combinations, so it is important to know the right combo before needing to heave-to in heavy weather. Start with either the storm jib and trysail or significantly reefed main and jib. The jib should be furled enough so that it does not overlap the mast. Trim for a reach, and then tack without crossing the jib. Once the boat is on its new course, slowly turn the helm to weather. Adjust the helm and mainsheet so that the boat is slowly sailing along at less than two knots at a 40- to 60degree angle to the wind. The jib and rudder effectively counteract each other, each serving as a brake. The backed jib and eased Blue Water Sailing • June 2006 Seamanship Solutions main will force the bow down and keep it from tacking through the wind, while the rudder keeps the bow angled into the wind and swell. Once achieving the right balance, the helm can be locked in place; however, a watchstander should still maintain lookout. In theory, heaving-to yields little leeway. While this may be true for older full-keel boats, modern finkeel boats will find that they slip to leeward. However, most modern boats can heave-to—it is just a matter of finding the right combination. When heaving-to most boats require the center of effort be moved aft. As a result, it often works best to heave-to with a staysail instead of a jib, if possible. You can also move the center of effort aft by decreasing the sail area of the jib and/or increasing the sail area of the main. In light conditions the boat’s orientation to the wind and waves matter little. However, when conditions deteriorate and seas begin breaking, it is important to keep the bow pointed as close to the swell as possible to avoid taking breaking waves broadside. Trimming the main or decreasing the sail area of the jib will allow the boat to lie closer to the wind and swell. But be careful not to overdo it. If you are pointed too close to the wind you will be vulnerable to being pushed through the eye of the wind and onto the other tack by an odd wave. Coming to hove-to from running downwind can be an exhilarating experience, to say the least. When you begin to turn into the wind, the apparent wind increases and you are exposed as you come broadside to the seas. Time the turn into the wind with a lull in the seas. Decrease sail area before you begin your maneuver. If possible, anticipate the conditions and heave-to before conditions significantly deteriorate, giving yourself plenty of time to balance your sails and helm. As conditions worsen you will have to continually tweak the balance, perhaps even tacking to keep the bow on the tack where it will head most directly into the waves. When heaving to you will slowly make way to leeward and ahead, so it is important to have plenty of sea room in both directions. Also you may not be able to actively avoid large breaking waves. As such, heaving-to becomes inadvisable in the worst conditions. Some sloops will heave-to with main alone eased out to leeward, countered with the helm to windward. Yawls and ketches may heave-to best using the mizzen. If having a hard time heaving-to on a sloop, try moving the center of effort aft by using a riding sail that you would use at anchor. If hove-to for a number of days, be sure to inspect the sails and rigging for wear. Blue Water Sailing • June 2006 In order to move the center of effort aft when heaving-to, shorten sail on the jib more than the main, especially on sloops where the mast is positioned relatively forward. While it is possible to heave-to under full main in light conditions, opposite, heavy weather necessitates shortening sail. Tweak the trim on the main to adjust the boat’s angle to the swell. A trimmed main, below, will point the bow closer to the swell direction 61