basic sailing slideshow
description
Transcript of basic sailing slideshow
5
We Will Learn Many New Terms in this Session
• Bow, stern, port, starboard, aft, fore
• Mast, boom, main, jib, centerboard, rudder, tiller
• Tack*, head, clew
• Luff*, leech, foot
• Halyard, sheet
• Upwind, downwind, reaching
• Tacking*
*Many sailing terms have multiple meanings. In this session, we learn two
meanings for the term tack, and two meanings for the term luff
6
A Boat Has Four Sides and Two Relative Directions
Port Starboard
Bow
Stern
Fore
Aft
(Top View)Port and starboard denote the sides of the boat withthe bow forward. If looking at a boat coming towards you, the side that appears on your right is the other boat's port side.
7
The Capri 14.2 You’ll Be Sailing Has Two Sails, Mast,
Boom, Centerboard, Rudder and Tiller
Main
Jib
Centerboard
Rudder
Tiller
Mast (vertical spar)
Boom (horizontal spar)
ForeAft
We dont have Jib sails on our boats but it is a good thing to know about as we may get some in the future. Likewise goes for centerboards.
8
Sails Have Three Edges and Three Corners
*Similarly for the main sail
Jib*
Clew
Tack
Head
Leech Luff
Foot
ForeAft
The same goes for a main sail
9
Halyards are Lines that Raise and Lower Sails,
Sheets are Lines that Trim Sails In and Out
ForeAft
Halyard
(attaches to top of mast)
Port and Starboard Sheets
(controlled by crew)Jib*
Clew
Head
Leech Luff
Foot
*Similarly for the main sail
Tack
We just have a single main "sheet" (rope) on the main sail, used for pulling the sail in (tightening up) or letting it out (easing the sheet). We do have a halyard for the main sail.
10
The Skipper Sits Aft, Crew Sits Fore, and Both Sit
Opposite the Boom and Face ForwardBow
Stern
Fore
Aft
Wind
Skipper
Crew
We want to sit as far to the stern as possible as this raises the bow up and prevents diving down and into/through the waves as much.
With 1 or 2 sailors- sit as pictured. with 3 or 4 sailors- place 2 on the side facing the sail and the 1 or 2 others on the opposite side to balance out the weight.
11
The Skipper Steers With the Tiller and Trims the Main
Sheet, Crew Trims the Jib Sheet and Watches for TrafficBow
Stern
Fore
Aft
Wind
Tiller
Main Sheet
Jib Sheet
On our boats, the tiller controls both rudders (the blades that go into the water and steer the boat)
If you push the tiller one direction, the boat will turn the opposite. Therefore, if you want to turn to the left (or to port), you will pull the tiller towards yourself.
12
There are Many Cues for the Direction and
Strength of the Wind
UCLA
MAC
Wind
Trees
Flags
Sails
Ripples
and
dark
patches
Birds
Traditionally, the wind in Dominica comes out of the North, or from the right when facing the water at Coconuts. However, it is very shifty and can change back and forth at a split second and you must be ready for these rapid wind direction changes.
13
We Can’t Sail Closer Than About 45° to the
Wind
Wind
No Sail Zone
45°
14
We Will Learn To Sail Upwind, Sail a Reach, and Sail
Downwind*
Wind
No Sail Zone
45°
Upwind
Reaching
Dow
nwind
*We Will Avoid
Sailing Directly
Downwind Until
Later in the Course
15
We Use Sheets to Trim the Sails All the Way In When
Sailing Upwind
Wind
No Sail Zone
45°
Upwind
We Pull the
Sheets Tight to
Trim the Sails In
Remember- Sheet is the sailing term for the rope that controls the sail's movement towards and away the midline of the boat.
16
We Use Sheets to Ease the Sails Mid-Way Out When
Reaching
Wind
No Sail Zone
45°
Reaching
We Ease the
Sheets to Let the
Sails Mid-way
Out
17
We Use Sheets to Ease the Sails All the Way Out When We
Sail Downwind
Wind
No Sail Zone
45°
We Ease the
Sheets to Let the
Sails All the Way
Out
Dow
nwind
18
We Don’t Have Brakes So We Use Safety Position to Stop
the Boat
Wind
No Sail Zone
45°
Upwind
Safety Position
Step 1: Point
Upwind
Step 2: Luff
(Ease) the Sails
Turning directly into the wind will also stop the sailboat, but this is prefered.
20
When Rigging We Will Use a Cleat Hitch to
Secure Halyards After Raising the Sails
1. Wrap the rope around the cleat one time. 2. Make an 8 over the cleet 3. Right before finishing the 8, twist the rope under itself so the the underside of the rope will line up in the same direction as the previously made 8, place over the clear and pull tight. It is seen that the 2 lines line up as in the 4th picture and go under a single line that holds them down together. wrap up the extra line (rope) and tuck it away neatly.
This is a cleatA general term for a rope on a boat is a "line". (it becomes a sheet when controling a sail, and a halyard when it is used to raise a sail)
21
We Will Use a Figure 8 as a Stopper Knot to
Prevent Jib Sheets from Running FreeWe also tie the end of the main sheet like this
26
We Will Change Direction By Tacking
Wind
Skipper: straightens tiller,
trims main sheet
Crew: trims port jib sheet
4
Power
Channel
Power
Channel
Skipper: “Ready
about?”
Crew: “Ready”
Skipper: “Helms
alee,” pushes tiller
away, boat turns
towards wind
Skipper: eases main, moves
to starboard side as sails luff,
changes hands for sheet and
tiller
Crew: releases starboard jib
sheet as jib luffs, moves to
starboard side
1
2
3
Tacking is also called "coming about", and denotes turning when you turn by moving the front of the boat (bow) through the wind direction and finish the manouver on the other side. Other commands often used are: 1. Skipper: "Prepare to come about". allowing the crew to get in position. 2. Then the skipper asks "Ready to come about?" 3. The crew then responds: "ready". 4. The Skipper then calls "coming about" and pushes the tiller as in the example.
27
We Will Sail A Figure-8 Course To Practice Tacking
Wind
28
Avoid Collisions By Remembering “Tiller
Towards Trouble”
Wind
Boat A avoids collision by
pushing tiller towards
kayak and tacking away
Remember push/pull the tiller direction opposite to the way you want to get. This will become second nature to you in time.
29
When Docking, Point Directly At Dock, Ease Sails All
The Way Out When a Few Boat Lengths Away
WindUCLA
MAC
We dont have a dock as of now, but the beach is to be seen as a dock, and a similar manouver performed. remember the direction of the wind in relation to how you will turn the boat against the land.
30
Push Tiller To Turn Towards Wind When ! Boat
Length From Dock
WindUCLA
MAC
31
Let The Boat Glide To A Halt Along Side The Dock*
WindUCLA
MAC
*Tip: pull the tiller towards you once head-to-wind to pull
boat closer to the dock.
33
We Coil Lines And Stow Them Neatly
1. make nice coils without twists. leave some line at the end ( a few feet) 2. wrap the remaining line around the coiled bunch a few times. 3. make a small loop and pass it though the top circle of rope formed by the wraps 4. flip it down over the top circle as shown. 5. You should have a nice coiled line that will stay untangled and in good condition.
2
We Will Learn Many New Terms in this Session
• Windward*, leeward*
• Head up, fall off
• Heel in, hike out
• Close hauled, close reach, beam reach, broad reach, run
• Gybe
*Many sailing terms have multiple meanings. In this session, we learn two
meanings for the term windward, and two meanings for the word leeward
3
We Sometimes Refer to the Windward And Leeward Sides
of a Boat
Wind
Windward
(side
opposite the
boom)
Leeward
(same side as
boom)
4
We Sometimes Refer to the Windward Boat And Leeward
Boat
Wind
Leeward Boat Windward Boatfirst boat hit in the path of wind
second boat to be hit by the wind...blocked by the windward boat
5
The Boom Always Points Toward The Leeward Boat
Windward BoatLeeward Boat
Win
d
6
Heading Up is Turning Towards the Wind, Falling Off is
Turning Away from the Wind
Wind
Heading Up Falling Off
Towards the wind direction. Also termed "pointing up"
Away from the direction of the wind
7
A Gybe is a Change in Direction by Turning Away from
the Wind (A Tack is Toward the Wind)Wind
Skipper: quickly eases
main sheet
Crew: trims port jib sheet
Skipper: crosses over
just as boom nears
center, changes tiller and
sheet hands
Crew: crosses over and
releases starboard jib
sheet
Skipper: “Gybe ho!” Centers
main to control boom, pulls
tiller to fall off
Crew: prepares to release jib
and to change sides as boom
crosses over
Skipper: “Ready to gybe?”
Crew: “Ready”
4
3
2
1
Power
Channel
Power
ChannelJust as in tacking/coming about, it is often customary to have the Skipper to state: "prepare to gybe" before asking "ready to gybe," allowing the crew to get ready and prepaired.
The wind direction changes across the stern of the boat. The boat will chage tacks (to be discussed later but mean changing from port tack to starboard tack, and vice versa)
8
A Gybe Results in a Large Change in Angle
of Sails for a Small Change in Heading
Wind
Gybe Tack
Change in Angle of Sails 180°
<1°
15°
Required Change in
Heading
90°
Gybe TackA Gybe is a lot harder on a boat as the sail will swing very fast from one side to the other. It is usually done when sailing withthe wind behind you "running/surfing". When gybing, it is often recomended that the main sheet be pulled is as the gybe is being performed to restrict the sail's range of swinging, therefore protecting the crew from a fast moving sail across the entire boat as well as maintaining the boat's condition.
A tack/coming about is often slow but effective unless very high winds, as one must turn through the wind and go into the no sail zone known as irons before coming out on the otherside and regaining control of the wind. it is better for the boat and less rushed, therefore prefered under all directions or "points of sail" unless going away from the wind known as "running/surfing".
9
Try Pushing the Boom Out and Pumping the
Tiller When Stuck “In Irons” (in No Sail Zone)
Wind
No Sail Zone
45°
10
Hauling as Close to the Wind as Possible is Called Sailing A
Close Hauled Point of Sail
Wind
No Sail Zone
45°
Clo
se H
auled
Trim Sails in All
the way
Point of sail= direction of travel in realtion to the wind
11
Reaching Close to the Wind is Called Sailing A Close
Reach Point of Sail
Wind
No Sail Zone
45°
Close Reach
Clo
se H
auled
Sails Slightly
Eased
12
Reaching with the Wind on the Beam is Called Sailing A
Beam Reach Point of Sail
Wind
No Sail Zone
45°
Beam Reach
Close Reach
Clo
se H
auled
Sails Eased !
Way Out
13
Sailing a Broad Angle to the Wind is Called Sailing
a Broad Reach Point of Sail
Wind
No Sail Zone
45°
Beam Reach
Broad Reach
Close Reach
Close
Hauled
Sails Eased "
Way Out
14
Running Away From the Wind is Called a Run
Wind
No Sail Zone
45°
Sails Eased All
the Way Out and
on Opposite Sides
(Wing and Wing)
Beam Reach
Ru
n
Broad Reach
Close Reach
Close
Hauled
15
Wind
Push Tiller to
Head Up
Sit Further
(Hike) Out
Ease the
Sheets
In a Gust We Can Ease the Sheets, Hike Out, And Head
Up to Avoid a Capsize
16
We Will Use a Four-Step Process to Right a
Turtled Boat
Step 2: skipper
climbs center-board;
crew releases sheets
Step 1: skipper and
crew hold center-
board and lean back
to bring boat into
capsize position
Step 4: Crew is pulled
aboard boat by hiking
strap, then helps
skipper aboard over
stern
Step 3: skipper
leans back to right
boat; crew holds
hiking strap
Our boats dont have centerboards, but do have 2 pontoons (the white floats on each side). First, turn the boat to point into the wind and release the main sheet from the cleat (locking mechanism for the main sheet). Stand on the pontoon floating on the water and pull the "pull line" (tied at the front of the trampoline) over the top. Hold it and lean back to turn the boat upright again. Climb aboard and maintain control of the boat.
Never leave the boat if you capsize. In case of need for rescue, it is much easier to find you if you are with a large visable object (the boat)
***NEVER LAND ON THE SAIL NO MATTER WHAT HAPPENS IN A CAPSIZING!!!***
Our boats shouldn't turtle (totally flip) with the white float atop the masts
17
We Will Sail A Loop and Alternate Tacking and
Gybing
Wind
Tack
Gybe
2
We Will Learn Many New Terms in this Session
• Starboard tack, port tack*
• Stand-on vessel, give-way vessel
• Battens, outhaul, cunningham, boom vang
• True wind, wind of motion, apparent wind
• Tell tales
*Many sailing terms have multiple meanings. In this session, we learn a third
meaning for the term tack.
3
A Boat is on Starboard Tack if the Boom is on the
Port Side, Otherwise it is on Port Tack
Wind
Starboard TackPort Tack
Wind hits the port side of the sail
Wind hits the starboard side of the sail
4
Rules of the Road Aid in Preventing
Collisions Between Two Vessels
• Rules categorize vessel responsibilities
– Stand-on vessel: responsibility is to maintain course
and speed. Typically this is the less maneuverable
vessel
– Give-way vessel: responsibility is to maneuver to
avoid collision with stand-on vessel. Typically this is
the more maneuverable vessel
• Both vessels have a responsibility to avoid
collisions
5
A Sailboat is Usually the Stand-on Vessel
When a Power and Sail Boat Meet
Exceptions:
• Large vessels in narrow channels (law of gross
tonnage)
• Towing vessels
• Vessel not under command
6
Remember OTW When Two Sailboats Meet
(On The Water)
OIs one boat
Overtaking
the other?
TAre boats on
opposite Tacks?
No
Yes
Give-way: port tack
Stand-on: starboard tack
No
Yes
Give-way: overtaking
Stand-on: overtaken
WGive-way: Windward
Stand-on: leeward
7
Can You Apply OTW To Determine the Stand-on
and Give-way Vessel for Each Example? Wind
Give-way Stand-on
Stand-on Give-way
6 knots
4 knots
Give-way
Stand-on
Stand-onGive-way
Example 1 Example 2
Example 3 Example 4
8
Sailboats Should Almost Always Give-way
To People Powered Boats
People powered boats include
– Kayaks
– Sculls
– Rowboats
Exception: overtaking boats should always give-
way to overtaken boats
9
The Main Sail Has Battens to Hold Shape in the
Leech
Battens
Leech
Foot
Luff
ForeAft
on our boats, the boom is also a batten. Be careful with them as they are thin fiberglass and can be easily broken if mishandled.
10
The Cunningham (or downhaul) Tensions the Luff
Leech
Foot
Luff
Cunningham
ForeAft
11
The Outhaul Tensions the Foot
Leech
Foot
Outhaul
Luff
ForeAft
(our boats don't have outhauls)
12
The Mainsheet and Boom Vang Tension the Leech
Leech
Main Sheet
Boom Vang
ForeAft
All of the pulleys on a boat are known as "blocks". the last one that the main sheet passes through at the stern of our boats has a "cam-cleat" which is a set of 2 gripping spring loaded wheels which clanp down and hold the sheet from being let out. to let the sail out, just pull downward, which will manouver the sheet out of the cam-cleet and be free to let out "easing the sheet". (one can pull in the sail while it is still engaged in the cam-cleat)
(we don't have boom vangs on our boats)
13
Rule of Thumb: the Heavier the Wind, the
Tighter the Rig
• In heavy wind, let the larger crew member
tighten the rigging:
– Halyards
– Cunningham (downhaul)
– Outhaul
• This de-powers the sails by flattening their
shape, allowing more wind to spill out
14
The Apparent Wind is the Sum of the True Wind
and Wind of Motion
Apparent wind:
0 + 12 = 12 knots
Apparent wind:
10 + 12 = 22 knots
True wind:
12 knots
Speed of Motion:
10 knots
Speed of Motion:
0 knots
15
Sailboats Are Propelled by Apparent Wind
Motion
True
Apparent
16
Strings Called Tell Tales On Each Side of Sail
Aid in Sail Trim For Upwind Points of Sail
Jib
Leech
Luff
Foot
Outside tell tale (dashed
line indicates tell tale is
on opposite side of sail)
Inside tell tale
ForeAft
17
Both Tell Tales Will Stream Straight Back
When Sails Are Properly Trimmed*
Jib
Leech
Luff
Foot*It’s okay if inside luffs
up on occasion
ForeAft
This goes for our main sail as well
18
For Close-Hauled Sailing, Fall Off if Inside
Luffs or Head Up if Outside Luffs
ForeAft
Jib
Leech
Luff
Foot
Jib
Leech
Foot
Head up since
outside tell
tale is luffing
Fall off since
inside tell tale
is luffing
ForeAft
This goes for our main sail as well
19
For Other Upwind Points of Sail, Sheet in
Direction of Luffing Tell Tale
ForeAft
Jib
Leech
Luff
Foot
Jib
Leech
Foot
Sheet-out
since outside
tell tale is
luffing
Sheet-in since
inside tell tale
is luffing
ForeAft
This goes for our main sail as well
20
Remember “When in Doubt, Let it Out” To Trim
When Sailing Off the Wind
Wind
Ease jib until it
begins to luff
(Let It Out)
1
2 Sheet-in jib until
it just stops
luffing
Trim main until
parallel to jib3
This goes for our main sail as well
21
We Can Use the Tiller, Sails and Body
Weight to Steer the Boat
Tiller Sails Body
Weight
Head Up Push Ease jib, sheet
in main
Heel in
Fall Off Pull Sheet in jib,
ease main
Hike out
22
We Will Use The Figure-8 Method For Person-
Overboard Recovery
Wind
Yell “person-
overboard,”
fall off onto a
beam reach
1 Keep your eye
on victim, sail
5-7 boat
lengths away
2
Tack and
immediately
fall-off to get
down wind of
victim
3
Watch victim and
carefully plan to
approach on
close reach,
pointing directly
at victim
4Luff the sails
to stop the
boat with
victim to
leeward, help
aboard over
stern
5