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Topic: Mast (sailing)


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In the News (Sun 18 Aug 19)

  
  SAILING OUTRIGGER FOR SMALL WATERCRAFT - Patent 3777690
A sailing outrigger as set forth in claim 1 including a rudder operable from the watercraft but carried by said float, whereby the watercraft is stabilized and rigged for sailing without loss of onboard space and accommodations.
The sail is hoisted by means of the halyard 65 and controlled by the mainsheet 67 which has one end fastened to the after end of the raised plank 69.
The shape and size of the sailing outrigger and its location, beamwise and lengthwise, in relation to the watercraft are important among the several factors that determine the overall performance and stability achieved.
www.freepatentsonline.com /3777690.html   (1520 words)

  
  Revisiting a Mast-Aft Sailing Rig
Fore to aft sails must be retained for their windward ability, and the single-masted rig would be preferred for its simplicity.
A staysail was then rigged between the masts in place of the mainsail, and the boat regained 1 knot of speed while retaining its decreased leeway.
It's sail area would have to be even larger to match our rig's effective sail area, when you factor in the inefficiency of the sloop's mainsail.
boatdesign.net /articles/mast-aft-sailing-rig   (2259 words)

  
 CSC Sailing Dictionary
forestay the wire between the bow and mast, which keeps the mast from falling backwards when the jib is off.
halyard line used to lift the sails; from "haul yard" since square-rigged boats had yards that were hauled up to lift their sails.
tack noun as in port tack and starboard tack; a boat's heading as determined by the side that its sails are on.
www.cal-sailing.org /library/bluebook/dinghy8.html   (867 words)

  
 Mast (sailing) - Wikipedia, the free encyclopedia
The mast of a sailing ship is a tall vertical pole which supports the sails.
Modern masts form the leading edge of a sail's airfoil and tend to have a teardrop-shaped cross-section.
On smaller racing yachts and catamarans, the mast rotates to the optimum angle for the sail's airfoil.
en.wikipedia.org /wiki/Mast_(sailing)   (606 words)

  
 Glossary
In a mainsail the luff is that portion that is closest to the mast.
Mizzen - A fore and aft sail flown on the mizzenmast.
When the boat is sailing downwind, the runner on the leeward side of the mainsail must be released so as not to interfere with the sail.
www.sailinglinks.com /glossary.htm   (5587 words)

  
 ESPN.com: OLY - Glossary of sailing terms
Backstay: A mast support that runs from the top of the mast to the stern of the yacht; it may be adjustable in order to bend the mast backward or to increase tension on the forestay.
The boom is attached to the mast at the gooseneck.
The head is pulled to the top of the mast, using the halyard; the tack is at the spinnaker pole, projecting it away from the yacht; and the clew is connected to the sheet, trimming the sail.
espn.go.com /oly/ac2003/s/2002/1016/1446964.html   (2265 words)

  
 Sailing rig - Patent 4474126
said sail, when said boat is close-hauled, folds around said mast; and when said boat is before the wind, said sail unfolds and opens to fly free of said mast, the curved top of said mast displacing the top of said sail forward of the vertical axis of the straight lower portion of the mast.
The head of the sail 15 may be attached to the mast by a halyard exiting through a fairlead at the masthead 16 allowing the halyard to rotate through a full circle.
The amount of mast curve 12 which may be permanent may vary, but the optimum is to position the top of the mast approximately one-half of the foot length of the sail when folded 13, from the vertical axis of rotation 14 of the mast.
www.freepatentsonline.com /4474126.html   (1566 words)

  
 AdriaSail | Sailing | Sailing Terms | Mast - Running
The line that adjusts tension along the foot of the sail by pulling the clew of the mainsail towards the end of the boom.
Sailing with the wind coming from the port side with the boom on the starboard side.
The combination of mast(s), boom(s), sail(s) and rigging used to propel a sailboat.
www.adriasail.com /sailing/terms/terms_7.php   (181 words)

  
 Boats & Rigging
Mast The main and highest spar in the center of the boat to which the jib and mainsail are attached.
Mizzen (Jigger) The smaller aft mast on a yawl or ketch.
Mainsail The sail aft of the mast which is attached to the mast and the boom.
www.sailingusa.info /parts_of_the_boat.htm   (1438 words)

  
 Forespar: About Whisker Poles
They extend between the mast and jib sheet at the clew to hold the jib out on the opposite side of the main in clean air, producing a greater degree of control and efficiency than you could possibly achieve without a whisker pole.
Mast attachment is critical to insure that the whisker pole can move in the necessary direction without binding under the compression loads.
Storing poles vertically up the mast has become very popular in recent years as the pole is always attached to the mast and ready to set.
www.mauriprosailing.com /Forespar/Forespar-techinfo/Forespar-About-Whisker-Poles.htm   (3596 words)

  
 Mast and Boom Repair -- Butterfly Sailing and Butterfly Sailboat Parts and Information from Torresen Marine - Sailing ...
During the year 1970, a mini~Wcleat halyard lock was added to the top of the mast and a 3/16" halyard substituted for the 1/4" line.
If the two piece mast is difficult to take apart, grasp one hand on each side of the joint and shake as you pull; clean splice and apply aluminum lube.
Usually the mast will have to be moved so that the straightening takes place over a large area rather than at one spot.
www.torresen.com /butterfly/butterfly_mast.htm   (629 words)

  
 BBC SPORT | Other Sports | Sailing | Americas Cup | America's Cup jargon
Sail flown between the mast and the bow of the boat.
A huge, billowing sail often referred to as a kite, which can be raised at the front of the boat in light winds to increase speed.
To adjust the sails depending on the position and or strength of the wind.
news.bbc.co.uk /sport2/hi/other_sports/sailing/americas_cup/2211878.stm   (864 words)

  
 Revisiting a Mast-Aft Sailing Rig
Fore to aft sails must be retained for their windward ability, and the single-masted rig would be preferred for its simplicity.
It's sail area would have to be even larger to match our rig's effective sail area, when you factor in the inefficiency of the sloop's mainsail.
Plus, the weight of our rig (and particularly the mast) is more favorably centered over the boat's motion center, contributing less to the vessel's pitching motion (Almost like gaining the benefits of a modern carbon mast without having to have one).
www.boatdesign.net /articles/mast-aft-sailing-rig/index.htm   (2259 words)

  
 JSA of LIS - Junior Sailing Association of Long Island Sound
Mast rake is important, because it is a major component in the boat's balance and feel.
In Figure 2, the boat's mast is raked too far forward, moving the center of effort in the sails forward of the center of effort of the boat's foils.
Finally, in Figure 3, the boat's mast rake is correct, since the center of effort in the sails is directly above the center of effort of the foils.
www.jsalis.org /Lessons/Boathandling_Tuning.html   (658 words)

  
 Getting Started   (Site not responding. Last check: )
The romantic notion of sailing is as true today as it has been throughout maritime history.
Each board has a sail attached to a rotating mast which is attached to the board.
While traditional sailing is fun, there is nothing like the thrill and excitement of sailing a multihull, big or small.
www.ussailing.org /training/getstarted.htm   (1253 words)

  
 Sailing Tips   (Site not responding. Last check: )
If you are running your mast rake or shroud tension out of this range, you may have found the reason your boat is not moving as fast as you were hoping.
The boat is weighed less the sails, boat drawer, anchor, cushions, and life jackets, but including the mast, boom, 1 whisker pole, boards, rudders, tillers, all hull fittings, standing and running rigging.
Mast Rake Rake is measured by attaching a 25’ tape measure to the main halyard, hoisting and latching it, then measuring to the centerline intersection of the deck and transom.
users.snip.net /~htwelsch/sailing_tips.htm   (2833 words)

  
 Sailing glossary
Catboat: A sailboat rigged with one mast and one sail.
Loose-footed: A sail attached to the boom at the tack and clew, but not along the foot, or a fore and aft sail which is set without a boom.
Roach: A curvature in the leach of a sail.
www.seadercraft.com /sailing_glossary.html   (3368 words)

  
 Sailing - encyclopedia article - Citizendium
The luff (forward edge) of a fore-and-aft sail is usually attached to the mast and its foot (bottom edge) is usually attached to a boom.
As this sail does not move the vessel, it is not considered a sailing vessel and is not a "fore-and-aft rig".
Sailing as a sport can be a race of less than an hour on a calm harbour or lake in a boat as small as two metres (about six and a half feet) or a race of several months around-the-world in a boat tens of metres long.
en.citizendium.org /wiki/Sailing   (1941 words)

  
 Sail Propulsion - Revisiting a Mast-Aft Sailing Rig
Mast induced turbulence renders totally ineffective, the first 1' ~ 2' strip of sail area all way up the luff of the sail.
A staysail was then rigged between the masts in place of the mainsail, and the boat regained 1 knot of speed while retaining its decreased leeway.
Adding a mizzen sail to one of the backstays turned the boat into a ketch without the addition of another mast and its associated rigging.
www.runningtideyachts.com /sail   (2467 words)

  
 The Stiletto Networks 27 Tuning Manual
Sailing upwind the bottom of the sail should be very flat because it is sailing backwind of the jib.
When sailing to windward close hauled, the jib sheet should be as tight as possible without causing the slot between the mainsail and the jib to close up, or so tight as to cause the leech or trailing edge of the jib cloth to curl toward the mainsail.
The reason for allowing a slight bend in the mast away from the mainsail is that, when sheeted in tightly in heavy winds the bend of the mast will flatten out the mainsail slightly and both reduce the amount of weather helm or the tendency of the boat to turn towards the wind.
stiletto.wildjibe.com /info/tuning_27   (3069 words)

  
 Spinnaker Sailing Course= Lesson1
Mast: The large vertical spar that supports the sail and boom.
Trimming is tightening the sheet to move the sail towards the centerline of the boat and easing is letting it out.
Luffing: The fluttering of a Sail when a boat is pointed too close to the wind or the sail is eased out too far.
www.spinnaker-sailing.com /lessons/keelboat/index.html   (914 words)

  
 Aft Mast Sail Power Calculator
Lets call it a marriage between a cutter and a ketch without the main mast, mainsail, booms or a second mast, a unique rig designed to go on a 36' Cross Cruising Trimaran hull, to be used as a shallow draft research vessel around the world in riverine waters and estuaries.
Adding a mizzen sail inside the backstay between the backstay jacks fixed on the rear of the mast, which were installed to keep the winching effort well above the mastfoot pivot, turned the boat into a ketch without the addition of another mast and its associated rigging.
It's sail area would have to be even larger to match this rig's effective sail area, when the inefficiency of the sloop's mainsail is factored in.
www.barefootsworld.net /windwalker/aftmastsailingcalc.html   (2166 words)

  
 Sailing
The sail is fairly small and low (low aspect) which is slower but safer.
Mast step (the block on the floor where the bottom of the mast sets) and the area around the mast hole on deck should be solid and free of cracks.
Masts can bend if not stored properly, and re-straightening is not always possible.
eartheasy.com /sailpage.htm   (702 words)

  
 C-22 Owners Manual 1977
You should never attempt to raise the mast unless the upper shrouds (those that pass over the spreaders) and the aft lower shrouds are attached to the deck fittings and the turnbuckles well "started" into their barrels.
Do not allow mast to lower so far that it pries up on the deck tabernacle fitting where the mast is stepped or it may break off the prongs due to the unnatural forces working upon it.
If, when sighting up the mast while on port tack, the middle is bent forward (but not to leeward) take up a turn on the port aft lower shroud and let out a turn on the port forward lower shroud turnbuckle.
www.catalina22.org /manuals/mnl77/manl77.htm   (3411 words)

  
 mast
In India, mast refers to a type of religious intoxication which renders the victim insensible to their surroundings and unable to communicate effectively or take care of themselves.
MAST is a magnet high school in the Miami-Dade County Public School system, specializing in maritime studies.
MAST supports a variety of astronomical data archives, with the primary focus on scientifically related data sets in the optical, ultraviolet, and near-infrared parts of the spectrum.
www.dirpedia.com /mast.html   (298 words)

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