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Topic: Outhaul

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	Outhaul - Wikipedia, the free encyclopedia
		An outhaul is a line which is part of the running rigging of a sailboat, which is used to extend a sail, and control the shape of the curve of the foot of the sail.
		The line is attached to the boom, lead through the same grommet, and thence to a cleat; this system provides a factor of two mechanical advantage over the previous one.
		Tightening or slackening the outhaul can flatten or fill out the sail, shift the draft forward or aft, change leech and foot tension, increase or decrease camber.
	en.wikipedia.org /wiki/Outhaul (217 words)

	HTML document for the World Wide Web
		In a sails normal wind range, simply setting the outhaul so that the leach of the sail is floppy down to the second or third batten from the top is all that is necessary.
		The outhaul is adjusted with the sail mounted on the ICE FLYER.
		The sail shape and outhaul adjustment is then made by adjusting the length of the boom (virtually all windsurfing booms are adjustable in length).
	iceflyer.com /fine_tun.html (967 words)

	INFORMATION SHEET
		The wire rope outhaul is payed out from the outhaul winch and fairled (i.e., guided in such a way as to avoid chafing) through a block at the top of the kingpost at the delivery station.
		The outhaul is then attached to the outboard side of the trolley (i.e., the side closest to the receiving ship).
		The major reason for operating the inhaul and outhaul winches in tension control mode is to compensate for the movement of the ships and prevent a "tightline" condition during transfer.
	www.fas.org /man/dod-101/navy/docs/swos/deck/STU11~2.html (2216 words)

	Harken Outhaul Trimming Systems
		A 6:1 internal outhaul system is popular on small-to-medium-sized offshore boats using a traveler car to carry the clew of the mainsail.
		The outhaul starts at the car, leads through the clew block on the sail, back to the sheave on the car, and into the boom where it leads to a winch.
		Tighten the outhaul to flatten the sail and reduce drag and heel in heavy air.
	www.mauriprosailing.com /Harken/Harken-Trimming-Systems/Outhaul-Systems.htm (232 words)

	HTML document for the World Wide Web
		The outhaul adjuster rope goes to another block (Harken 224) attached to the front of the boom and then is routed down to a cleat attached to the mast helper tube.
		After using the "spring board" adjustable outhaul for awhile, the pulley and cleat have been moved very close to each other and are up just in front of the pedals (out of the wind flow).
		This is the cleat used on the boom (one on each side) and is nice because the the pull of the outhaul rope is "toward" the user rather than along the boom length resulting in better leverage and it uses a cam cleat rather than a jam cleat.
	iceflyer.com /adjouth.html (1072 words)

	Sailworks - 2002
		Before sailing, check your range of outhaul adjustment to ensure that the adjustment system is tuned properly for both full and flat outhaul settings.
		To avoid excessive release of outhaul tension, hold onto the pull-strap while the CamLock release tab is depressed.
		Less outhaul will make the sail fuller and more powerful for reaching and lighter winds, but it will also be harder to control when over-powered or sailing upwind.
	www.sailworks.com /html_pages/outhaul.html (355 words)

	Boom Outhaul Slides for Integral Track
		Outhaul Slide features welded eye for clew attachment, and 3/4" diameter SS Sheave for a 2-part purchase using up to a 1/8" wire pennant.
		Outhaul Slide Assembly features pivoting toggle with 2-position clew attachment using 5/16" clevis pin, and separate pin for attachment of outhaul pennant.
		SS Outhaul Slide features 1/2" hole for attachment of outhaul pennant and a 7/16" slot for use with a D-shackle to attach the tack of the sail.
	www.rigrite.com /Spars/SparParts/Outhaul_slides_integral.html (1858 words)

	Harken Rigging Tips: outhaul systems
		Adjustable outhauls are important in shaping the mainsail.
		Loosening the outhaul increases the draft, especially in the lower third, and is effective in light air or off the wind.
		Because outhauls must release freely when there is little load on the sail, use oversized blocks for very low friction.
	www.harken.com /rigtips/outhaul.php (215 words)

	Twister Class Association Discussion Board
		Being a bit of a rookie I am not sure of the benefits of an adjustable outhaul, maybe the lashing is fine but if not this seems like a good time to sort it out.
		Outhaul line was led from the dead-end fairlead through the clew cringle to the sheave block, then along the outside of the boom to a jamming cleat with another fairlead, mounted near the kicking strap attachment.
		the ability to sweat the outhaul* by pulling it laterally, between the sheave and the jammer.
	pub4.bravenet.com /forum/258422775/show/583860 (533 words)

	Wishbone boom - Wikipedia, the free encyclopedia
		The wishbone boom on larger sailing craft is a double-sided boom set at an angle to the mast and typically supported by line stays from the leading edge of the mast to each side of the boom.
		The sail's foot (outhaul) and luff (vang) tension are adjusted simultaneously by the use of one line, called a snotter or a choker.
		The wishbone boom works much better than a conventional boom, especially if used with a modern rig of an ultra-flexible carbon-fibre mast to keep the sail in perfect trim.
	en.wikipedia.org /wiki/Wishbone_Boom (271 words)

	[No title]
		The outhaul of the NSR is actually composed of two pieces of string.
		The 4 markings (fl, green, green, red) are the suggested outhaul settings and allow you to switch between a dihedral and an anhedral.
		The kite is delivered with the bridle set between the red and fl marks on the main bridle, and on the fl mark on the outhaul.
	www.kites.tug.com /Archive/kites/potpourri/nsr.bridle (1112 words)

	Bowers Sails -- MC Scow Tuning Guide
		Outhaul tension controls the amount of shape and power in the lower quarter of your sail.
		Upwind in light air and smooth water the outhaul should be tight enough to flatten and open the lower leech.
		You can often use a full foot at the wavy bottom of the race course and a flat foot as you approach the weather end where the water is flatter.
	www.mcscow.org /tunebow.htm (1632 words)

	Designing Custom Control Systems -
		The optional blocks to be added on the deck block fitting must be chosen with care (to have a low profile) so that the control line leading from the block to the cam cleat on the deck cleat base does not rub on the metal bridge forward of the cleat base and create unnecessary friction.
		Also note that one effect of the rule changes seems to be to move at least some of the tackles in the outhaul system to the aft end of the boom, away from high-traffic and congested areas.
		For the outhaul, this calculation is especially necessary so that you can determine whether you have sufficient span between the permanent fittings on the boom to use a rope loop tied to the control line (or to use a shockcord loop) along that span to prevent any line sag.
	www.wvaegir.nl /newrig_2.html (7554 words)

	Harken Yacht Equipment Catalog OnLine - Systems Outhaul Systems
		Loosening the outhaul increases the draft of the main, especially in she lower third and is effective in light air or off the wind.
		Because outhauls must release freely when there is little load on the sail, use oversized blocks for very low friction and avoid use of magic boxes.
		The outhaul wire passes into the boom through a wire block and is attached to a triple block.
	www.harken.ru /12/os.htm (413 words)

	SailNet Articles (Site not responding. Last check: 2007-10-26)
		Outhaul The outhaul is used to alter the tension along the foot of the sail.
		On smaller boats, the outhaul is often rigged externally, but on most boats 20 feet and larger, the outhaul runs through the boom.
		Some outhauls, however, are tough to pull on when the sail is under load, and you’ll need to work in concert with the mainsail trimmer or the driver to get more tension.
	www.sailnet.com /collections/articles/index.cfm?articleid=ddcksn0318 (1232 words)

	surfingsports.com : Aerotech Sails 2005
		Outhaul until the sail is as flat as possible in the area between the clew and the boom opening.
		On downwind courses the outhaul can be loosened to allow the head to twist more and give the sail a slightly fuller shape.
		Now outhaul the sail until it is flat then back off this tension approximately one to two inches.
	www.surfingsports.com /aerotech_rigging_guide.asp (2063 words)

	Fancy Free sailboat hardware notes
		Outhaul and Halyard Cleats: OUTHAUL- Use one of the smaller cleats.
		The Downhaul eye strap is used in conjunction with a cleat, much as for the clew outhaul, to haul down on the mainsheet gooseneck to tension the main sail.
		To raise the main: The gaff gooseneck will be inserted into the luff groove, the peak halyard is attached to the opposite end of the gaff, both halyards are pulled simultaneously.
	www.glen-l.com /designs/sailboat/sailhdw-ffr.html (778 words)

	[No title]
		Generally, long outhaul lengths seem to slightly increase forward drive, make the kite easier to spin, makes the kite turn with less speed but able to keep the spine and wingtips of the kite, relatively perpendicular to the lines, and may slightly increase performance in low wind.
		Shorter outhaul lengths usually will produce a quicker and more accurate turn, but one in which the kite has a tendency to "lay back" more while turning, a faster recovery from snap turns, slightly less forward drive, and a slower spin.
		Shortening the outhaul tends to cause the kite to lean back a little more but the adjustment is not nearly as sensitive as the tow point adjustment.
	www.kites.tug.com /Archive/kites/potpourri/bridles (3914 words)

	starboardpassage/sunfish_tips
		Sit forward to lift the stern of the boat but be aware of your own weight; you don’t want the bow to dip under water.
		If you have trouble pointing, mainsheet tension might be needed.Both Cunningham and outhaul are adjusted according to wind strength and waves.
		More tension on the outhaul than on the cunningham if sailing in flat water.
	www.starboardpassage.com /sunfish_tips.htm (1013 words)

	Controls (Site not responding. Last check: 2007-10-26)
		The jam for the outhaul should not be on the boom.
		The outhaul may be the most under used control on a 210, in part because it usually works hard and is mounted in an inaccessib1e location.
		Yet the outhaul in conjunction with mast bend and Cunningham is the most effective way to flatten a sail.
	www.210class.com /controls.htm (4865 words)

	8:1 Adjustable Outhaul (Site not responding. Last check: 2007-10-26)
		When switching sail sizes it may be necessary to lengthen or shorten the line in the 4:1 part to keep the right range of adjustment.
		When the outhaul is eased downwind, the clew tends to rise up.
		In general, there is little load on the line when the outhaul is eased, so having a fair lead when eased isn't that important, but it may help to reduce chafe on the line.
	www.jfeehan.net /windsurfing/outhaul.html (802 words)

	Cape Dory Boats - View topic - Rigging of staysails on club boom
		When the outhaul is pulled tight it brings the foot down to the boom but it isn't attached and there is no bolt rope at least on mine.
		You have to ease the outhaul to raise or lower the sail.
		On Parfait, a block is placed at the clew and the outhaul is two-part to the end of the boom, then run forward to a turning block that allows the outhaul to run aft to the cockpit coaming through several fairleads and another turning block mounted on the rail to a cleat.
	www.toolworks.com /cdsoa/board/viewtopic.php?p=74679 (825 words)

	Installing a New Outhaul
		Last season, I had revamped the outhaul system, adding a nice 3:1 tackle on the boom and a cam cleat near the forward end of the boom to secure the outhaul; with the boltroped mainsail foot, this worked fine, as there was less need to adjust it often.
		After moving the sail out of the way to expose the port side of the boom, where the existing outhaul tackle lay, the first step was to remove the parts I intended to reuse from the boom.
		I now had to determine the location for a new turning block, needed to direct the outhaul down off the boom and into the double block at the base of the mast.
	www.triton381.com /equipment/sailinghardware2.htm (1179 words)

	What Cruising Sailors Need to Know
		That will be enough to put some shape in the lower section of the sail for sailing on broad reaching angles in light and medium winds.
		For light air upwind the outhaul should be eased about 2" from the maximum aft position.
		Because your sail is fully battened, the outhaul will have less of an effect on the sail shape above the lowest batten than an outhaul on a leech batten mainsail.
	www.northsails.com /North_America/Cruising_Sails/SolutionsTrimmingOuthaul.htm (173 words)

	Reefing
		I connect the snap shackle on the outhaul to it when reefed for better control of the shape of the reefed sail.
		This will be fine when the outhaul is tight but until it's tight there may be too wide an ange with nothing to keep the clew at the boom.
		This shot shows the outhaul on the reef and the cheek block on the starboard side of the boom with the reefing line running through it.
	dan.pfeiffer.net /p26/reef.htm (668 words)

	Model sailing center RC Laser Radio Control Boat Modeler - Find Articles (Site not responding. Last check: 2007-10-26)
		In light air, the clew outhaul should he set for a substantial foot curve and there should be a light twist in the leech.
		In heauier air, clew outhaul tension is increased to reduce foot curve and leech twist.
		When I had the clew outhaul and boom set, I put the boat in the water for a trial sail.
	www.findarticles.com /p/articles/mi_qa3918/is_200306/ai_n9254278 (1007 words)

	: : U S S a b o t : :
		(We measure the outhaul as the distance from the middle of the boom to the foot of the sail.)
		You never want it to be completely flat (with horizontal wrinkles along the foot), but you only want about 2 inches between the sail and the boom.
		As a general rule, let your outhaul out almost as far is it will go when you are going downwind, no matter what the wind conditions.
	www.ussabot.org /tutorials.html (935 words)

	INFORMATION SHEET
		There are several different ways of rigging the inhaul and outhaul, and these methods will be discussed in later lessons.
		Outhaul Winch - Although Figure 1.10-1 shows a tensioned outhaul controlled on the delivery ship, there are ways to set up the STREAM rig so that the outhaul line can be non-tensioned and controlled by the receiving ship (See paragraph 4.5.2 of reference(a)).
		Inhaul and outhaul winch operators must act independently; this is especially important when passing the rig, during the transfer, and when retrieving the rig.
	www.fas.org /man/dod-101/navy/docs/swos/deck/STU10~2.html (1056 words)

	Yachting and Boating World: Outhaul on loose foot main
		I am happy with the principles of easing the outhaul in light airs and pulling it tight in stronger winds when sailing into the wind.
		Last weekend we had light airs on Saturday so I released the outhaul with the intention of dropping it back slowly while watching the draft on the sail.
		The only way we found to pull it back was for me to grab the foot of the sail and SWMBO pulling on the outhaul.
	www.ybw.com /forums/showthreaded.php?Number=554612&page=fpart (179 words)

	[No title]
		Set draft depth: Backstay on, outhaul on to flatten sail (deeper for light air, flatter for medium to heavy, flat or "bladed" for heavy.)
		*Outhaul: pulls foot of sail tight across boom; should be fairly tight for upwind to help flatten bottom of sail; should be looser for downwind so main isn't overstrapped.
		Outhaul should be on enough to tighten foot across boom.
	www.well.com /user/rwilmeth/main.html (719 words)

	Prodigy One Design Class Association - Tuning the Prodigy
		Now you should be able to push the cambers down onto the mast by pushing down on the batten with one hand and on the camber inducer with the other hand.
		The outhaul can be tightened for windier conditions and pointing; loosened for more power off the wind.
		Once you've got downhaul and outhaul tension set you can make fine adjustments to the batten tension--more tension for lighter conditions, typically, and reduced tension at the top to allow twist in higher wind.
	www.prodigyonedesign.org /tuning.html (1303 words)

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