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Page 1: Glossaryallatoonanjrotc.org/.../2019_sa_cadet_guidebook.docx · Web viewswivel tang and two holes to anchor the outhaul. Eye strap Strong stainless strap that is formed with a loop

NJROTC AREA-12 SAIL ACADEMY- NAS Jacksonville

NAVAL JUNIOR RESERVEOFFICERS TRAINING CORPS

AREA-12SAIL ACADEMYName: ______________________________

CADET GUIDEBOOKUpdated June 2019

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The Sail Academy training activity is designed to arm you with a basic knowledge of sailing principles, sailing terminology, and safe boat handling procedures, with the goal of qualifying you to sail aboard a small boat without an instructor. It stands alone as viable life-skills training but it also complements Leadership Academy in that it provides a forum for hands-on leadership training in the command and control of a sailboat and its crew members.

Leadership and teamwork aboard any sailing vessel, regardless of size, is essential for both performance and safety considerations, and will be stressed throughout your sail training. Safety is paramount; therefore powerboats with instructors and safety observers onboard will continually be monitoring all sailboats. A swim test and an in-water sailboat righting exercise will be conducted. Sailboats shall remain between the marina and southern NAS Jax base property line and will not venture out to the river channel without permission of the Head Sail Academy Instructor. Exploring all safety aspects, the towing of sailboats by powerboats and man-overboard drills will be conducted early in the water training syllabus.

This course of instruction will allow you to experience the entire spectrum of small boat handling procedures. The philosophy of the course is to provide as much “hands-on” training as time allows. This means that the ground school portion of your training will run concurrently with the first few sailing sessions on the boats. A personal flotation device (PFD) will be worn at all times by ALL personnel whenever they are in the dock area or on a sailboat/ powerboat. If scheduling permits, the final day of sailing may end with a sail regatta or race.

The Sailing curriculum will consist of the following.

1. Swim Test (pass or fail)2. Land Drills3. Sailboat Rigging4. Water Drills5. 1st Exam - Nomenclature & Knots (80% to pass)6. Sail Session I - VII (Marina) Weather & Time permitting (Graded & Ranked)7. 2nd Exam - Final Sail Exam (80% to graduate) 8. Graduation

Cadets will arrive at Sail Academy with the attached Cadet Study Guide Completed in order to take advantage of as much “on the water time” as possible. Being familiar with sailing nomenclature and basic principles will allow you to arrive prepared to learn, demonstrate sailing principles, ask questions, and have fun!

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Cadet Notetaking Study GuideSAILBOAT NOMENCLATURE

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HULL COMPONENTS1. The front part of a boat or ship is the_____________, and the back part is called the ______________.

2. The left side of a boat is called the________side, and the right side is called the_______________side.

3. The middle of a boat or ship is called the __________________ .

4. Anything running across a boat or ship is said to be__________________________ .

5. The body of a boat or ship is called the____________________ .

6. Primarily for preventing sailing vessels from slipping sideways (preventing Leeway) in the water, but also providing a measure of stability is an object that protrudes from the bottom of the hull. On larger sailing vessels this object is quite heavy and is called a _______________. Smaller vessels have a retractable ___________________ which pivots on a pin, or a ________________ which slides up and down through a slot in the bottom of the boat.

7. The _____________is the means for controlling the boat’s course and usually projects down from the hull aft of (behind) the keel or centerboard or on the stern. The lever that is attached to the upper end of the rudder (or rudder linkage) for steering is called the .

8. The back wall of a boat is called the _____________________.

9. If the rudder is attached to the transom of the sailboat, it is usually attached using two pieces of hardware (fittings). The pins are called ___________, and these go through eyes called ____________.

10. The large open area of a sailing vessel where the crew sits is the___________________________.

11. Many sailing vessels have a top covering area referred to as a ______________. A decked over bow is called a ________________. In a small daysailer type vessel that has no cabin, the area under the foredeck is called a _____________________.

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Keep tension on the sails when raising them. When lowering them, release the lock in the spool and then take the winch handle out before pulling the sails down.

RIGGING COMPONENTS How to rig a Flying Scot video https://youtu.be/SGZqJ_GI-3Y

12. A spar is a pole to which sails are attached (or “bent on”). The vertical pole or spar on a sailing vessel is a _________________. The horizontal spar is called a______________. The boom attaches to the mast with a hinged fitting called a ___________________________.

13. The mast is seated in a mast step, but in most sailing vessels is further supported by cables called ________________________. These are occasionally “tuned” but are otherwise left standing and not adjusted or moved.

14. There are two types of standing rigging: (1) The wires that support the mast fore and aft are called ___________________. (2) The wires that provide sideways support are called

___________________.

15. The stay that goes from the bow to the front of the mast is called a____________or_______________.

16. The shroud that goes from the mast to the right side of the boat is the____________________shroud. The shroud that goes to the left side is the _________________________ shroud.

17. Most sailboats have small spars that spread the shrouds out from either side of the mast. These small spars are called_________________. Logically the one on the port side is called the _____________ spreader. The one on the starboard side is the __________________ spreader.

18. The shrouds carry heavy stress loads at times so they are attached to the hull using reinforced metal strips bolted to the hull. These metal strips on the hull to which the shrouds are attached are called __________________.

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19. The fittings used to increase and decrease tension (“tune”) the stays and shrouds are called ______________.

20. The lines (not ropes) that are used to control the sails are referred to as ________________________.

21. There are two types of running rigging: _______________________ and________________________.

22. Halyards go up through a block (the nautical term for a pulley is “block”) at or near the top of the mast and back down. Halyards are used to ________________ the sails. There is a______________halyard to hoist the mainsail, and a separate halyard called a______________________halyard to hoist the jib.

23. Sheets are the lines used to _________________, or adjust the angle of the sails.

24. There are two sheets attached to the jib. One trims the jib on the starboard side and is called the _____________________. The other trims the jib on the port side and is called the_______________.

25. The sheet used to trim the mainsail is the __________________________.

26. To control or change the direction of sheets, the sheets are passed through ________________. These fairleads are usually either fairlead _____________ (without a pulley) or fairlead ______________ where a pulley is used.

27. Main sheets for the mainsail usually have a series of________________to reduce the load of pressure while trimming the mainsail.

28. Anchor lines and mooring lines are often fed through open eye fairleads called _____________. These keep the lines from chaffing or rubbing and keep them at the correct angle as they lead from the boat to the anchor or dock.

29. The fittings used to secure halyards, sheets and mooring lines to the boat are called_______________.

30. The standard cleat has horns and the line is secured to the cleat with a round turn and a figure eight. This means go around it _______________, then from a figure _______________. If the line is to be “locked” on the cleat then the last loop of the figure eight is ____________. This is called a cleat knot.

31. A modern, quick acting cleat commonly used is a _____________, which has two spring loaded jaws (cams) that tighten on the line. The line can be pulled in through these but will not slide out unless you pull the line in and _______________________ simultaneously to release the line.

32. One other item of running rigging that is used to keep the boom from rising when the sail is full is called a ________________. It passes through blocks usually attached to the boom, about 2 to 4 feet out from the gooseneck and to the mast about 2 to 4 feet below the gooseneck.

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PARTS OF A SAIL35. Each side and each corner of a sail has a name. On standard Marconi-rigged sailboats with triangle

shaped sails, the bottom of the sail is called the____________, the leading edge the _____________ and the trailing edge the___________________. (Red)

36. The 3 corners of a triangle sail are named as follows: the top corner is the_____________; the bottom forward corner is the______________; and the bottom aft corner is the _________________.(Blue)

37.

38. Most mainsails and some jibs have thin pieces of wood or fiberglass inserted into the trailing edge or leech of the sail to reduce flapping in this area and to help hold the shape of the sail. These are called _____________________and are held in the sail in________________________.

39. The sails are bent onto spars in several ways. On some mainsails a rope is sewn along the edge of the sail called a ____________. The bolt rope is fed into a channel in the mast or boom to hold it in place.

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40. Some sails have small plastic or metal fittings that are fed into the channel called _________________.

41. One of the most common ways to attach the jib to the forestay is by using small snap shackles called __________________. High performance modern racing boats tend to have an aerodynamic slot attached to the forestay. A bolt rope on the luff of the jib is fed into the slot.

42. The fittings frequently used to attach lines to sails, or lines to anchors or to other parts of a boat are called _______________. These are usually stainless steel, or brass or galvanized and are “U” shaped with a screw type or locking type pin to close the open end of the “U”.

43. Quick acting shackles with a spring loaded pin are called _________________.

44. A line that attaches to the clew of the mainsail and used to pull the sail out to the end of the boom is called an_________________.

45. A line used to pull the boom down the mast, attached just below the gooseneck, is a _____________or boom __________________.

46. Using the ______________ a sailor is able to adjust the tension of the mainsail along the foot of the sail. Using the ________________________the tension along the luff of the mainsail can be adjusted.

PRINCIPLES OF SAILINGTHEORY OF SAILING47. To understand the interaction between a sailboat and the wind, it is helpful to know the difference

between true wind and apparent wind. __________________is the wind speed and direction of a stationary position like a flag flying in the breeze.

48. _______________________ wind is the true wind altered by the motion of the boat. An example would be if you were riding a motorcycle, and if the wind were calm before you started riding, the true wind would be Zero miles per hour. But you would feel the ______________________ wind when the motorcycle began moving on your face or from directly ahead of you.

49. In sailing, sails are always sheeted or set to the _______________ wind direction. Therefore it is very important to know the direction of the apparent wind.

50. This is done by the observance of ____________________ attached to the shrouds of the sailboat. Usually these are just strips of light cotton line about 6” long.

51. Another place to determine the apparent wind direction is at the top of the mast. This wind sensing device is called the ____________________________.

52. The side of the boat the wind is on is the _______________ side. The side of the boat that is away from the wind is called the ______________ side.

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53. No sailboat can sail directly into the wind, but sailing vessels with fore and aft sails can generally sail within ______________________degrees of the wind line.

54. The sails produce lift by using the rounded shape of the sails like the wings of an airplane. The lift that these vertical airfoils produce is through the application of __________________________________.

55. Applying only Bernoulli’s Principle however, would make the boat go sideways as well as forward. So to prevent the boat from going sideways, sailboats use a ___________, ___________, or___________.

56. Combining the effect of_____________and the resistance provided by a___________,_____________, or ______________enables a sailing vessel to sail upwind within___________degrees of the windline.

57. Sloop-rigged sailing vessels not only gain more lift from the ___________in addition to the mainsail, but also obtain extra lift through the interaction of the jib and the mainsail when sailing____________.

58. Wind that is picked up between the jib and the mast is channeled aft (back) through a narrow_______ formed between the trailing edge of the jib and the curve of the mainsail.

59. Wind forced through a narrow opening tends to accelerate (speed up), thus the slot between the jib and mainsail causes the wind passing over the back side of the__________________________to accelerate.

POINTS OF SAILING60. When the wind is coming across the starboard side of the sailboat (the boom is on the port side), the

boat is said to be on a ___________________.

61. When the wind is coming across the port side of the boat (the boom is on the starboard side), the sailboat is said to be on a __________________.

62. The highest point of sail, where the sailboat is pointed as high into the wind as possible and still has the sails full is called ________________, _____________, or ____________. In this situation the sails are trimmed __________________as close as possible.

63. The next highest point of sail is called a ___________________.

64. When the wind is coming in over the beam or middle of the boat, this point of sailing is called______________.

65. When the wind is abaft (behind) the beam and coming in over the starboard or port quarter, then the boat is on a___________________.

66. When the wind is coming in directly over the stern (from directly behind), this is called a ___________, as the boat is “running before the wind”.

67. On the broad reach or run the boat is mainly being ______________ along (“the barn door principle”).

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68. The least efficient and slowest point of sailing is the _________________, because very little lift is being generated with the sails. This is also the most ________________ point of sailing because of the risk of an accidental jibe.

69. The safest and fastest point of sailing for most sailing vessels is the _____________________________because lift (Bernoulli’s effect and the pushing (barn door effect) are combined to the maximum extent possible.

70. If you mistakenly or on purpose attempt to sail directly into the wind (well inside 45 degrees to the windline), all headway or speed will be lost. A sailboat with no speed cannot be steered. A sailboat with no speed and likely starting to go backwards is said to be ________________________________.

71. The terms used when you are sailing to windward a little too close are called ___________________ or _____________________________. This means that you are still sailing to windward but losing speed. Experienced sailors use this method of sailing to de-power the boat in windy conditions.

72. When a sailboat changes heading while remaining on the same tack (Port Tack or Starboard Tack) it is heading______________when it heads higher into or toward the windline, or heading ________when it turns away or _______________ from the windline.

73. When a sailboat makes a large change in heading (At least 90 degrees) using it’s momentum to turn the bow of the boat through the windline, it goes from a port tack to a starboard tack or vice versa and is performing a maneuver called ______________________or_____________________.

74. When a sailboat with wind coming over the stern changes from port tack to starboard tack or vice versa, causing the boom to cross over to the other side of the boat, the maneuver is called a________.

75. When sailing downwind the skipper must be careful and alert so as not to mistakenly allow an _______ to occur.

76. An accidental jibe is extremely dangerous because the boom swings rapidly to the other side of the boat when not expected and if a crew member gets hit on the head by the boom it can cause ____________________ or even _____________________ if the boom is a large one on a large vessel.

77. Two methods are used to stop a sailboat. The first method is to simply turn the boat into the________ area. The sails will luff and all power will be lost. The other method is to________________________. By easing the jib and mainsheets the boat will lose power and coast to a stop.

MAN OVERBOARD (MOB) / CAPSIZE PROCEDURES78. The greatest cause of man overboard is ____________________error.

79. The key to recovering a MOB is to maneuver the boat as quickly and safely as possible into a__________position of the MOB then plan your approach the same way that you would approach a ______________or ___________________. This means that you need to have the boat under control and able to _______________________ it on the leeward side of the MOB. By having the

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MOB on the windward side, the sails can be _______to leeward and be out of the way during recovery.

80. _________ around to pick up a MOB should only be done when the winds are light and there is no chance of broaching or capsizing.

81. The first rule of boating safety, which is especially true in the event of capsize is _________________, because the boat provides flotation, visibility and protection.

82. Should the boat capsize, the procedures to follow are: (1) ____________ WITH THE BOAT, (2) _______ for the crew, (3) Put on_________if they are not already on, and (4) Climb on the__________________ for leverage in righting the boat.

83. You must move quickly in righting the boat because if you are slow, the boat may turn completely ____ (“Turn Turtle”) which could result in damaging the boat or mast.

RULES OF THE ROAD (USCG COLREGS)84. When two sailing vessels are in a crossing situation and one sailboat has its mainsail boom on the port

side (is on starboard tack) and the other has its mainsail boom on the starboard side (is on port tack) the __________________ boat has the right of way. The other boat is expected to give way and is called the ______________ boat.

85. When two crossing sailboats are on opposite tacks the_______________ Rule applies.

86. When two sailing vessels are in a crossing situation and both boats are on the same tack (mainsail booms are on the same side) the boat to _____________(is further downwind) has the right of way. The windward boat is the __________________ vessel.

87. If any vessel overtakes another, the one going faster (catching up from behind) must _______________of the slower vessel when the___________________ is applied.

88. Generally, power vessels must give way to sailing vessels except a large or deep draft vessel (like a ship) that is _______________________________to a channel or when a power vessel is limited in_____________such as a fishing vessel with extended _______________ ,___________, or________.

89. A vessel that has right of way (is the stand-on vessel) is expected to hold Course and ________until it is obvious that the ____________ is not doing enough to avoid collision. At that point the stand on vessel is also expected to maneuver so as to ________________a collision.

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POINTS OF SAIL14

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Tack & Jibe

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Ropes & Lines

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Figure 8 “stopper” Knot:

Double Overhand “stopper” Knot:

Bowline Knot (tying up a boat to a buoy):

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Cleat Hitch (tying up a boat to a dock):

Square Knot (connecting lines together):

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Sheet Bend (connecting lines together):

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Cadet Note Sheet

Glossary

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Aft deck Part of the deck that is aft of the cockpit .

Adjuster plates The stainless steel multi-holed plates used to attach the shroud s to

the chainplates . The outboard plates are hooked for the spinnaker

guy .

Aft Located in or toward the rear.

Backlash A backward rotation of the halyard winch spools caused by the

spring tension of the wire that is wound on the spools.

Bail Stainless steel strap made to form a loop.

Batten A thin flexible fiberglass strip inserted into the batten pocket s in the

leech of the mainsail to support the leech . Long battens are 40"and

short battens are 30".

Batten pocket A pocket sewn roughly at right angles to the leech of the mainsail

shaped to hold the batten safe after it has been slipped in.

Becket A becket block has a loop or eye to which a line can be attached.

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Block Has a roller or sheave , which turns on a pin between two metal or

plastic cheeks.

Bolt rope Rope attached to the luff and foot of the mainsail so that the sail can

be fed into the mast or boom .

Boom 13’ aluminum spar that holds the foot of the mainsail

Boom crutch A 1" dia. aluminum post with a plastic fork at one end used to

support the boom when the sail is lowered.

Boom vang A block and tackle system used to pull the boom down keeping it

horizontal while sailing.

Bow The forward part of the boat.

Bow eye Cast eye in bow plate used for tie-up.

Bow line Twisted nylon 3/8" line with a loop spliced at one end used to tie the

boat to the dock.

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Bow plate Chrome plated cast brass fitting at the bow through which the jib

tack and forestay extension wires pass; incorporates an eye for tie-

up.

Bow shackle Shackle with curved sides.

Bowline A knot tied to make a loop that will neither slip or jam, and that can

be undone after it has been subjected to tension.

Centerboard The weighted board that is lowered through a slot in the bottom to

reduce leeway and provide lateral resistance.

Centerboard

cable

A 5/32"cable that winds onto the shaft of the centerboard winch to

raise the centerboard .

Centerboard hoist See centerboard winch

Centerboard line ¼" line on the starboard side of the centerboard trunk used to

operate the centerboard winch in raising and lowering the

centerboard .

Centerboard

trunk

The long narrow casing running fore and aft on the centerline that

houses the raised centerboard .

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Centerboard

winch

Differential winch located on the starboard side of the stanchion

used to raise and lower the centerboard . Provides 16:1 mechanical

and consists of a ¼" line pulling on an 8" wheel turning a 1" shaft

that winds up a 5/32" cable rigged with 2:1 purchase. Sometimes

called the centerboard hoist .

Centerboard

winch drum

The 8"wheel that is part of the centerboard hoist .

Chain plate A 1-1/8" stainless strap that protrudes from the side deck near the

forward end of the cockpit to which the shroud s are attached

Clevis pin A 3/16" or ¼" locking pin, headed at one end, with an eye at the

other through which a keeper pin is passed to prevent accidental

withdrawal

Clew The after lower corner of a sail where the foot and leech meet.

Close-hauled Sailing a course as close to windward as possible.

Coaming Raised area around the cockpit that prevents water from entering.

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Cockpit Open space in the deck where the crew can sit or stand.

Cunningham A block and tackle system used to control tension on the luff of the

mainsail .

Cunningham hole Reinforced grommet in the luff of the mainsail a few inches above

the tack through which the cunningham is rigged.

D shackle Shackle with straight sides.

Dead-ended To terminate a purchase with a knot.

Deck Large molded section that covers the hull and provides the seats

Downwind Direction to leeward .

Drain plug Rubber and metal plug with metal flip lever used to close the drain

hole at the center of the lower transom .

End boom casting Cast aluminum alloy fitting attached to the end of the boom with a

stainless steel swivel tang and two holes to anchor the outhaul .

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Eye strap Strong stainless strap that is formed with a loop and screwed or

bolted to the structure. Generally used to attach fittings to a surface.

Fairlead Fitting through which a working line is rove to alter the direction of

the lead.

Fiddle block A block with two sheave s, one above the other on separate pins; is

supposed to look rather like a violin because the upper block is

larger.

Figure-eight knot A knot, shaped like an 8, made in the end of a line to prevent it from

unreeving through a block , fairlead etc.

Foot The lower edge of a sail.

Foredeck Part of the deck that is forward of the mast

Forestay 3/32" stainless wire with forked fittings at each end that provides

fore-and-aft support for the mast and is the wire to which the jib luff

is snapped

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Forestay

extension

17.5" x 3/32" stainless wire with a forked fitting at one end and a

threaded fitting at the other that connects the forestay to the

forestay turnbuckle through the bow plate

Forestay

turnbuckle

A stainless steel coupling device consisting of a barrel piece

internally threaded at both ends into which a threaded rod from

below and the forestay extension from above are screwed in order

to adjust the tension of the forestay .

Gooseneck Fitting which attaches the boom to the mast and allows the boom to

move in all directions.

Grommet Metal eye fitted into a hole in a sail or canvas to take a line, shackle ,

etc.

Halyard winch Phenolic device with aluminum spools mounted at the base of the

mast used to raise the main and jib sail s.

Halyard winch

crank

Aluminum alloy handle used to turn the halyard winch spools when

hoisting the main and jib sail s. Designed as a shear pin to break at 30

lbs. of torque to protect more expensive pieces in the system.

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Halyard winch

spools

Aluminum spools in the halyard winch onto which the main and jib

halyard s are wound when hoisting the main and jib sail s.

Head The upper corner of a sail where the luff and leech meet to which the

halyard is attached. Note - There are several other nautical uses of

this word which are not covered here.

Headboard Plastic reinforcement at the head of the mainsail .

Hull The actual body of the boat.

Jib The small triangular sail set on the forestay forward of the mast

Jib fairlead block Block mounted on a sliding car and track arrangement on the side

cockpit coaming . Used to adjust the tension on the jib leech .

Jib halyard 3/32" wire attached to the upper spool of the halyard winch at one

end and with a shackle at the other used to raise the jib sail .

Jib halyard winch Top spool in the halyard winch used to raise the jib sail .

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Jib sail Small triangular sail that is forward of the mast and snaps to the

forestay

Jib sheet The sheet that is rove through the jib block s and controls the lateral

movement of the jib sail .

Jib tack wire 19" X 3/32" stainless wire with a forked fitting at one end and a

shackle at the other that connects the jib tack to the toggle through

the bow plate .

Key shackle A D shaped long stainless shackle with a retaining bar and a key type

pin that cannot fall out.

Leech The aftermost edge of a sail.

Leeward Downwind , away from the wind, the direction to which the wind

blows.

Luff 1. The forward edge of a sail.

2. To alter course so that the boat sails closer to the wind or turns

into the wind. 3. A sail luffs when the wind backs it close to the luff,

i.e. when the boat is pointed too close to the wind or when the sail is

not trimmed in far enough.

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Main halyard

winch

Bottom spool in the halyard winch used to raise the mainsail.

Mainsail The largest and principal sail.

Mainsheet The sheet that is rove through the mainsheet block s and controls the

lateral movement of the boom and mainsail .

Mast 26’ aluminum extrusion without which no sail can be set

Masthead The top part of the mast to which the mainsail halyard sheave s are

fitted.

Masthead fly A device at the masthead that swivels to show the wind direction.

Mid-boom bail Stainless steel strap made to form a loop that is mounted

approximately at the center of the boom to which the mainsheet

mid-boom block is attached using a screw pin D shackle .

Mid-boom block Single mainsheet block that attaches to the middle of the boom with

a screw pin D shackle .

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Outhaul The tackle system by which the mainsail clew is hauled out towards

the end of the boom .

Pawl Short lug which drops into a toothed wheel or rack to prevent it from

running back.

Port The left hand side when looking forward towards the bow .

Ratchet block A block with a serrated sheave , which grips the sheet , and a pawl

which permits it to turn in one direction only, thus taking much of

the load.

Reeve To pass the end of a rope or line through a hole or aperture such as

an eye, block or sheave .

Rove Past tense of reeve .

Rudder A vertically hinged aluminum plate in a fiberglass housing mounted

at the stern for directing the vessel’s course.

Rudder blade Aluminum plate mounted in the fiberglass rudder head . Pivots up in

shallow water or for launching.

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Rudder fitting Four stainless steel fittings mounted to the rudder head and transom

through which the rudder pin passes and attaches the rudder to the

transom .

Rudder head Molded fiberglass housing for the rudder blade to which the tiller

connects.

Rudder pin The 3/8" stainless steel rod that is approximately 17" long and is

used to attach the rudder to the hull .

S hook A sharply bent stainless device used to attach the upper block of the

broom vang to the boom

Safety pins Clevis pin keepers for shroud s – must be taped

Safety wire Small length of stainless steel wire used to prevent the forestay

turnbuckle from turning itself and coming loose accidentally.

Sail track Groove that runs the length of the aft side of the mast and the top

side of the boom . The bolt rope, sewn to the luff and foot of the

mainsail , is fed into the track to hold the sail to the mast and boom .

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Screw pin shackle Shackle with a threaded pin. Some are made so that the pin cannot

fall out.

Shackle Stainless steel link used to connect sails, lines, block s, etc.

Sheave A wheel over which a rope or wire runs.

Sheet Rope or line attached to the boom or corner of a sail, the lateral

movement of which it controls. Named after the sail it serves, i.e.

mainsheet , jib and spinnaker sheet s.

Shroud 5/32" stainless wire with forked fittings at each end used to support

the mast laterally

Shroud adjuster

plates

The stainless steel multi-holed plates used to attach the shroud s to

the chainplates. The outboard plates are hooked for the spinnaker

guy .

Spinnaker A large symmetrical balloon-shaped sail set when sailing downwind .

Spinnaker pole A 1.5"dia. x 7’ spar which extends the spinnaker to windward .

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Stanchion Wood (usually mahogany or teak) deck support that transfers the

compression forces from the mast to the hull . Also serves as the

mounting platform for the centerboard winch and wooden spinnaker

halyard cleats..

Starboard The right hand side when looking forward towards the bow .

Stern The after part of a vessel.

Swage Compression sleeve at the end of a wire,

Swivel tang Swiveling flat stainless steel strap that is bolted to the end boom

casting to which the mainsheet fiddle block is attached.

Tack 1. The lower forward corner of a sail where the luff and foot meet.

2. A sailing boat is on a tack when she is not in the process of gybing

or tacking. When she has the wind to starboard and the boom to

port , she is on starboard tack. When she has the wind to port and

the boom to starboard , she is on port tack.

3. To turn the boat so as to change from one tack to another with

the bow passing through the eye of the wind.

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Tack pin Key type pin part of the gooseneck that holds the mainsail tack to

the boom

Tackle A purchase to increase pulling or hoisting power by means of a rope

or line through one or more block s.

Tang Flat strap, usually stainless, with holes that allow a fitting to be

attached or for it to be bolted or screwed to a spar or to the hull .

Tiller The wooden lever that is approximately 63" long and mounts to the

top of the rudder and is used to turn the rudder and steer the boat.

Tiller keeper pin Large brass cotter pin used to keep the tiller from slipping out of the

rudder head accidentally. It is generally attached to the rudder head

with a short line or wire.

Tiller tender Piece of ¼" shock cord mounted under the aft deck at the back of the

cockpit to hold the tiller at or near center.

Toggle plate A stainless steel device attached to the hull under the foredeck that

has the forestay attached at one end and the jib tack wire at the

other. Used to evenly spread the load of the mast between the

forestay and jib halyard .

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Transom The flat, vertical hull section that extends across the stern .

Traveler strap Stainless steel strap made to form a loop that is mounted to the

forward upper corner of the rudder head . Attachment point for the

lower mainsheet block .

Vang bail Stainless steel strap made to form a loop that is mounted to the

boom and to which the upper broom vang block is attached using a

stainless S-hook.

Winch crank Aluminum alloy handle used to turn the halyard winch spools when

hoisting the main and jib sail s. Designed as a shear pin to break at 30

lbs. of torque to protect more expensive pieces in the system.

Windward The direction from which the wind blows.

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