Yamaha 33 1980 User manual

iMMlMl'iMi'lIM
YAMAHA-33
YAMAHA MOTOR CO., LTD.
HEAD OFFICE: 2500 Shingai, iwata-Shi, Shizuoka-Ken, 438 JAPAN
BOAT DIVISION: Mukojima, Arai-Cho. Hamana-Gun, Shizuoka-Ken, 431 -03 JAPAN

Y-33 0-1
r
r
TABLE OF CONTENTS
1. GENERAL DESCRIPTION 1- 1
1-1 PRINCIPAL DIMENSIONS AND FIGURES 1- 1
1-2 SAIL PLAN 1- 2
1-3 RIGGING LIST 1- 4
1-4 DECK PLAN 1- 6
1-5 ACCOMMODATIONS 1- 7
1-6 THROUGH-HULL FITTINGS 1- 8
1-7 MAST FITTINGS 1- 9
1-8 BOOM FITTINGS 1- 9
1-9 STANDARD LIST OF ENCLOSED ITEMS 1-10
2. SPARS AND RIGGING 2- 1
2-1 STEPPING MAST 2- 1
2-2 STANDING RIGGING ADJUSTMENT 2- 2
2-3 HALYARD LEAD 2- 5
2-4 MAIN SHEET LEAD 2-5
2-5 MAIN SHEET TRAVELLER ADJUSTMENT 2- 5
2-6 JIB SHEET LEAD 2- 6
2-7 CUNNINGHAM 2- 6
2-8 BOOM VANG 2- 6
2-9 REEF LINE AND REEFING 2- 6
3. ELECTRIC SYSTEM 3- 1
3-1 BATTERY 3- 1
3-2 BATTERY SWITCH 3- 1
3-3 ELECTRICAL SWITCH PANEL 3- 1
3-4 BILGE BLOWER 3- 1
3-5 ELECTRICAL SYSTEM DIAGRAM 3-2
4. ENGINE 4- 1
4-1 BEFORE STARTING ENGINE 4- 1
4-1-1 FUEL SUPPLY 4- 1
4-1-2 FUEL SYSTEM DIAGRAM OF STANDARD MODEL 4- 2
4-1-3 FUEL SYSTEM DIAGRAM OF U.S. MODEL 4- 3

Y-33 0-2
4-1-4 OTHER CHECK POINTS 4- 4
4-2 STARTING ENGINE 4- 5
4-2-1 ELECTRIC STARTING 4- 5
4-2-2 HAND STARING : 4- 5
4-3 WARM UP 4- 6
4-4 POINTS TO CHECK DURING OPERATION 4- 6
4-5 SECURING ENGINE 4- 6
PRACTICAL NOTE .4- 7
5. PLUMBING SYSTEM 5- 1 ^
5-1 PLUMBING SYSTEM DIAGRAM 5- 1
5-2 FRESH WATER TANK 5- 2
5-3 GALLEY 5- 2
5-4 HEAD 5- 2
5-5 MANUAL BILGE PUMP 5- 3
5-6 COCKPIT DRAIN 5- 3
5-7 ANCHOR WELL 5- 3
5-8 ELECTRIC BILGE PUMP (optional) 5- 3
6. MAINTENANCE TIPS 6- 1
6-1 FIBERGLASS SURFACES 6- 1
6-2 STANDING RIGGING AND HALYARDS 6- 1
6-3 SPARS 6- 2
6-4 SAILS 6-2
6-5 TEAK 6- 2
6-6 HARDWARE 6- 2
6-7 BATTERY 6- 2
6-8 ZINC-RING 6- 2
6-9 CRADLE 6- 3
7. MISCELLANEOUS 7- 1
7-1 HOT WATER SYSTEM 7- 1

1. GENERAL DESCRIPTION:
1-1. PRINCIPAL DIMENSIONS AND FIGURES:
Y-33 1-1
r
r
DESIGNER
BUILDER
RIG
L.O.A.
LW.L.
BEAM
DRAFT
TOTAL HEIGHT
(Above the water line)
MAST LENGTH
HEAD ROOM
DISPLACEMENT
BALLAST
TOTAL SAIL AREA
(100% fore A + main saii)
BERTHS
WATER CAPACITY
ENGINE
1-HR, RATING OUTPUT
CONTINUOUS RATING
OUTPUT
REDUCTION RATIO
PROPELLER ROTATION
CRANKSHAFT ROTATION
FUEL CAPACITY
SPEED, MAX
SPEED, CRUISING
CRUISING RANGE
♦SPECIFICATION SUBJECT
YAMAHA DESIGN TEAM
YAMAHA MOTOR CO., LTD.
MAST HEAD SLOOP
10.17 m 33 ft 4 in
8.2 m 26 ft 11 in
3.55 m 11 ft 0 in
1.9 m 6 ft 3 in
14.2 m 46ft Tin
14.55 m 47 ft 9 in
2.08 m 6 ft 10 in
4,400 kg 9,700 lbs
2,000 kg 4,409 lbs
45.7 sq m 492 sq ft
MAIN CABIN 4
FO'CSLE 2
QUARTER BERTH 2
200 liter 52 US gals
YANMAR YSM-12 4 CYCLE 1 CYLINDER DIESEL
12 HP/3,000 rpm
10 HP/3,000 rpm
2:1
COUNTER-CLOCKWISE (viewed from astern)
COUNTER-CLOCKWISE (viewed from astern)
75 liter 20 US gais
abt. 6.3 kts
abt. 5 kts
abt. 238 nauticai miies
TO CHANGE WITHOUT PRIOR NOTICE

Y-33 1-2
1-2. SAIL PLAN:
1-2-1. SAILS:
AREA
LUFF FOOT LEECH
LPG
WEIGHT
sq m m m
m m oz
(sq ft)
(ft) (ft) (ft)
(ft)
MAIN
18.53 11.40 3.25 11.85
8 STANDARD
(199.46) (37.40) (10.66) (38.88)
DRIFTER 41.90 13.30
7.24
11.60
6.30
(451.01) (43.63) (23.75) (38.06)
(20.67)
LIGHT GENOA 41.90 13.30 6.82 12.40
6.30 5
(451.01) (43.63) (22.38) (40.68)
(20.67)
#1 HEAVY GENOA 41.90 13.30 6.73
12.62 6.30
7
(451.01) (43.63)
(22.08) (41.40)
(20.67)
#2 GENOA 36.77 12.90 6.20 11.90 5.70
7
(395.79)
(42.32) (20.34)
(39.04)
(18.70)
#1 JIB 28.86 11.90
5.32 10.85 4.85
8 STANDARD
(310.65)
(39.04) (17.45) (35.60) (15.91)
#2 JIB 19.50 10.00
4.54
8.60
3.90 8
(209.90)
(32.81) (14.89) (28.21)
(12.80)
STORM JIB 8.28 7.70 3.60 5.25 2.15
10
( 89.13) (25.26) (11.81)
(17.22)
( 7.05)
STAYSAIL
29.80 12.30 4.85 11.10
4.85 8
(320.77)
(40.35) (15.91) (36.42)
(15.91)
SPINNAKER
13.02 7.56
13.02
(42.72)
(24.80)
(42.72)
STORM SPIN.
12.40
7.56
75% MID GIRTH
(40.68) (24.80)
100% Fore A 27.2
(293)
NOTE: 1) Material: DACRON/TERYLENE except NYLON spinnaker and drifter
2) SPINNAKER FOOT: BMW (I.O.R. measurement)
3) STANDARD SAILS MAY VARY ACCORDING TO REGION.
4) WEIGHT: oz/sq yrd
1-2.3 BATTENS:
TOP
MIDDLE (2)
BOTTOM
0.500 m
0.690 m
0.630 m
19ln11/16
27 In 1/8
24 In 13/16

Y-33
1-3
r
c
o90
SMW7.56
18.53
/5.73
27.20
m
C^//VG(.S
o^fE3.25
J4.20
Fig.
1
SAIL
PLAN

Y-33 1-4
1-3. RIGGING LIST:
1-3-1. STANDING RIGING:
LENGTH
DIA.
TYPE
m
mm
HEAD STAY
1
13.005
8
1 x19
BACKSTAY
1
13.430
8
1 x19
MIDSTAY (INNER FORE STAY)
1
6.410 6
1 x19
UPPER SHROUDS
2
12.130
7
1 x19
LOWER SHROUDS
2
6.200 6
1 x19
NOTE: LENGTH
(§□=
■■//// y
(gZZ3=
(<?—D=
3>)

1-3-2. RUNNING RIGGING
Y-33 1-5
LENGTH DIA.
COLOR TYPE
m
mm
MAIN SHEET
1 17 12
RED
1/4
Braided
JIB SHEET
propylet
2
15 15
YELLOW
1/4
SPIN. SHEET
2
20 12 GREEN
1/a
MAIN HALYARD (TAIL)
1 17 12 RED
1/4
JIB HALYARD (TAIL)
1 17
12
YELLOW
1/4
SPIN. HALYARD
1 32 12
GREEN
1/a
BOOM LIFT (TAIL)
1
14 a WHITE
SPIN. POLE LIFT (TAIL)
1 14 10 GREEN 1/a
CUNNINGHAM
1 2
a
WHITE
CUNNINGHAM #2
1 3 6
WHITE
REEF POINTS
10
1.2
6
WHITE
MAIN SHEET TRAVELLER
1
8 a
RED
1/a
BOOM VANG LINE
1
a 10
RED
1/4
SPIN. FORE GUY
1 13 10
GREEN
1/a
REEF LINE #1
1 7.5
10 WHITE
REEF LINE #2
1
10.5 10
WHITE
REEF LINE #3
1 14
10
WHITE
MAIN HALYARD
1
13 5 S.S.
7x19
JIB HALYARD
1
13
5
S.S.
7x19
BOOM LIFT
1
14.75 2.5
S.S.
7x19
SPIN. POLE LIFT
1 9.34
4
S.S.
7x19
BOOM VANG
1 1.7 5
S.S.
7x19
NOTE: "RED 1/4" rope has 1/4 of strands colored red.

Y33 1-6
1-4. DECK PLAN:
34 (OP)
18 (OP)
24 (OP)
1. BOW ROLLER
2. COMBINATION LIGHT
3. HEAD STAY FITTING
4. CHOCK (4)
5. BOW PULPIT
6. FUEL FILLER CAP
7. ANCHOR WELL
8. FORWARD HATCH
9. MIDSTAY FITTING
10. TANNOY VENTILATOR
11. HAND RAIL
12. TOE RAIL
13. STANCHION
14. CHAIN PLATE
(UPPER SHROUD)
15. CHAIN PLATE
(LOWER SHROUD)
16. CABIN TOP HATCH
17. CHOCK (2)
18. INSTRUMENT CONSOLE (OP)
19. COMPANION HATCH
20. SHEET STOPPER (2 + 3)
21. HALYARD WINCH (2)
22. MANUAL BILGE PUMP
23. JIB SHEET WINCH (2)
24. SHORE POWER RECEPTACLE
(OP)
25. TURNING BLOCK (2)
26. SPINN. SHEET WINCH (2)
27. STERN PULPIT
28. WATER FILLER CAP
29. COWL VENTILATOR (2)
30. BACKSTAY FITTING
31. CLEAT (4)
32. FAIRLEAD (SPINN. FOREGUY)
33. MAST
34. WASTE PUMP-OUT (OP)
35. COWL VENTILATOR (2)
36. FAIRELEAD BLOCK (3x2)
37. TANNOY VENTILATOR
38. JIB SHEET CAR W/BLOCK (2)
39. STERN LIGHT
40. STOWAGE BENEATH
41. LG. CYLINDER STOWAGE
42. LAZARETTE
Fig. 2 DECK PLAN
♦SPECIFICATION MAY VARY IN DIFFERENT COUNTRIES;

6'10"
2,080
(Q
CO
>
O
O
O
o
o
>
H
o
z
0)
CABIN TOP HATCH
1,930
1,740
1,050
ANCHOR
WELL
OIL
SKIN
LOCKER
YANMAR
YSM-12
LOCKERS
DRAWERS
4.400 LB
BALLAST
4'1"
DOUBLE BERTH
WATER TANK BENEATH
(26 GAL)
BATTERY-STOWAGE
V-BERTH
FUELTANK
1,250
SHELF
PILOT BERTH
750
CHART
OCO
OCSJ
SETTEE BERTH
1 I I
[table!
HEAD AND
SHWR
= FOLDING TABLE
75/20 gal
LOCKER
jSINK
I I i
SETTEE BERTH
I I I
HNG
LOCKER
PILOT BERTH
LOCKER
LOCKER
1,790
3,215
ai
>
O
O
o
o
o
>
H
o
z
CO
BATTERY-STOWAGE
WATER TANK
26 GAL (NO. 2)
2,000
770
2,000

Y-33 1-8
1-6. THROUGH-HULL FITTINGS:
STARBOARD SIDE:
1. Anchor well drain (No shutoff)
2. Sea water Intake for galley sink (1/2" valve)
3. Galley sink drain (1" valve)
4. FWD cockpit drain (1" 1/4 valve)
5. AFT cockpit drain (1" 1 /4 valve)
6. Propane cylinder stowage drain (No shutoff)
PORT SIDE:
7. Head intake (1/2" valve)
8. Engine cooling sea water Intake (1/2" valve)
9. Head sink drain (3/4" valve)
10. Head discharge (1" 1/4 valve)*
TRANSOM:
11. Engine exhaust (No shutoff)
(10,9, 8,7)
Fig. 4 THROUGH-HULL FITTINGS
* EXCLUDE U.S.A. MODEL.

1-7. MAST FITTINGS:
y-33 1-9
-EYE PLATE (BOOM VANG)
-CLEAT
/-EXIT SHEAVE (MAIN HLYRD)
EYE (CUNNINGHAM)
EXIT SHEAVE
(SPIN POLE LIFT)
EXIT SHEAVE
(JIB HLYRD)
-CLAM CLEAT
\(SPIN CAR ADJUST)^
-EXIT SHEAVE
(BOOM LIFT)
LOWER SHROUD TERMINAL
SPREADER BRACKET
MAST LIGHT
SPIN POLE TRACK
CAR W/2 TOGGLES
EXIT SHEAVE
(SPIN HLYRD)
^FAIRLEAD
(SPIN HLYRD)
SHEAVE
(SPIN POLE LIFT)
1-8. BOOM FITTINGS
Fig. 5 MAST FITTINGS
CLEW OUTHAUL SLIDE
CLEAT
(ON BOTH SIDES)
EYE (BOOM VANG)
EYE (MAIN SHEET)
WINCH
(REEF LINE)
WINCH
(REEF LINE)-
(ON BOTH SIDES)
Fig. 6 BOOM FITTINGS

Y-33 1-10
1-9. STANDARD LIST OF ENCLOSED ITEMS:
(1) MAST ASSY.
(2) BOOM ASSY.
(3) MAIN SAIL (with bag)
(4) JIB SAIL (with bag)
(5) BOW and STERN PULPIT ASSY, (with bolts)
(6) LIFE LINE - STANCHION ASSY.
(7) MISCELLANEOUS:
A. LINES:
1) MAIN SHEET with BLOCKS and SHACKLES
2) MAIN SHEET TRAVELLER ADJUSTMENT LINE
3) JIB SHEET
4) REEF LINE
5) REEF POITS
6) SPINNAKER SHEETS with SNAP SHACKLES
7) SPINNAKER FOREGUY with SANP SHACKLE
8) CUNNINGHAM HAULER ASSY.
9) BOOM VANG ASSY.
B. FITTINGS AND GEARS:
1) BLOCK and SHACKLE (for SPIN, SHEET)
2) BLOCK and SHACKLE (for FOREGUY)
3) GENOA CAR ASSY. (RUNNING BLOCK)
4) WINCH HANDLE
5) COWL VENTILATOR
6) FILLER CAP OPENER
7) BOAT HOOK
8) BILGE PUMP HANDLE
9) BATTENS (4)
10) RUBBER BUSHING (for MAST HOLE)
11) RUBBER MAST BOOT (attached to the mast)
12) HOSE CLAMP (STEEL)
13) GALLEY STOVE ACCESSORIES
C. ENGINE:
1) STARTING KEY
2) STARTING HANDLE
3) TOOLS
4) OPERATION MANUAL
D. OWNER'S MANUAL
1 set
1 set
1
1
1 set
1
2
3
10
2
1
1 set
1 set
2 sets
1 set
2
2
4
1
1
1
1 set
2
1
2
1 set
2
1
1 set
1
1
•THE ITEMS MAY VARY IN DIFFERENT COUNTRIES

y-33 2-1
2. SPARS AND RIGGING:
2-1. STEPPING MAST:
(1) Preparation:
Keep unnecessary staff out of your way and check all parts carefully. Make sure the standing
rigging Is not tangled, halyards are properly running and all turnbuckles are slacked.
Put the rubber boot onto the foot of the mast temporarily.
(2) Setting the Spreaders:
Secure the spreaders to the spreader brackets.
Secure the tips of the spreaders to the upper shrouds (see Fig. 7).
NOTE: A SPREADER SHOULD BE ADJUSTED SO THAT THE ANGLES BETWEEN THE
SHROUD AND SPREADER ABOVE AND BELOW ARE EXACTLY EQUAL (see Fig. 7)
FAILURE TO DO THIS CAN CAUSE THE SPREADER TO SLIP WHICH COULD
RESULT IN THE LOSS OF THE MAST.
(3) Stepping the Mast:
By using a crane, step the mast on the mast step. Secure all turnbuckles, but leave the stand
ing rigging snug.
Set the clevis pins so that the cotter pins are Inboard.
(4) Secu re the Heel of the M ast:
Secure the heel of the mast to the mast step by using the securing bolts and nuts (see Fig. 8)
.r
MAST
HEEL
/
o^oo\
MAST STEP
Fig. 7
Fig. 8
NOTE: BIND UP THE SPREADER TIPS AND BRACKETS WITH INSULATING TAPE FOR
SECURITY.

Y-33 2-2
(5) Around the Mast Hole:
Insert two rubber bushings between the mast and the mast hole. The second bushing may be
inserted by pulling the mast to the other side by using a tackle.
Squirt slllcone sealer Into the groove of the mast and the space between the mast and the hole.
Secure the rubber boot by using two hose clamps. The boot will give with the mast (see Fig. 9).
I HOSE CLAMP
b®
a
K)
BUSHING
Fig. 9
2-2. STANDING RIGGING ADJUSTMENT:
Our masts are built to withstand any normal usage, but Improper tuning or handling can cause
problems. Rigging, as well as tuning, becomes all Important when setting up the mast because of
the lightweight section we use. A knowledgeable person should oversee the rigging and tuning so
as to eliminate the possibility of an eccentric load which might occur with an Improperly loaded
shroud.
The following article, therefore. Is to give you a hint on how to proceed on the adjustment of the
standing rigging.
NOTE: SPECIAL ATTENTION SHOULD BE GIVEN TO THE INITIAL STRETCH OF THE
UPPER SHROUDS AND A FURTHER GRADUAL STRETCH OF THE WIRE OVER
THE FIRST FEW HARD RACES OR HARD WEATHER SAILS.

Y-33 2-3
2-2-1. The Rake of the Mast:
The rake of the mast should be determined according to the helm of the boat under sail. But you
may start with our recommended rake — 0.5 degrees.
Adjust the head stay and backstay to bring the mast in the position so that the distance between the
lower terminal fitting of the backstay and the hole of the backstay fitting reaches 500 mm/19 in 3/4
(see Fig. 10).
This is a temporary setting. Do not set up the stays too tight, rather start with slack stays.
You will have to check the rake after you have adjusted the tension on the head stay and backstay.
HEAD STAY
-MIDSTAY
(INNER FORE STAY)
UPPER SHROUD
LOWER SHROUD
BACKSTAY
Fig. 10
Fig. 11
r
2-2-2. The Adjustment of the Head Stay and Backstay:
Set up the head stay and backstay taut about evenly, and puii the stays by means of a spring bal
ance at right angles to them at the point of the height of 1 m 500/4 ft 11 in from the pins of their deck
fittings.
Adjust the turnbuckies so the head stay has 25 mm/1 in of play at 20 kg/44 lbs load and the
backstay has 35 mm/1 in 3/8 of play at the same load (see Fig. 12).
Secure the turnbuckie lockouts of the head stay and backstay.
PLAY
Fig. 12

Y33 2-4
2-2-3. The Adjustment of the Upper Shrouds:
Adjust the upper shrouds until the masthead is equal distant from each chainpiate(see Fig. 13).
Use the main halyard or a steel tape measure to check the athwartship alignment.
Set up the shrouds to have 50 mm/2 in of play (see Fig. 12).
HALYARD
UPPER SHROUD
Fig. 13
2-2-4. The Adjustment of the MIdstay:
Set up the midstay (inner forestay) until it pulls the mast forward 25 mm/1 in at the spreader
brackets.
This figure may vary but should be between 20 mm to 40 mm according to the cut of the main sail.
The play of the midstay is 55 mm/2 in 1/8.
2-2-5. The Adjustment of the Lower Shrouds:
Set up the lower shrouds tight until they start to pull the mast aft.
The play of the lower shrouds will be 30 mm/1 in 1/8.
NOTE: 1) SIGHT UP THE MAST WHILE THE BOAT IS UNDER WAY.
IT SHOULD BE STRAIGHT IN ITS GROOVE AND LEEWARD SHROUDS SLACK
WHEN ON THE WIND.
2) REMEMBER, DO NOT TIGHTEN THE STANDING RIGGING MORE THAN NECES
SARY. OTHERWISE, HULL DAMAGE MAY RESULT.
3) DO NOT ATTEMPT, OR AT LEAST BE VERY CAUTIOUS TO CORRECT MAST
CURVATURE UNDER WAY. RIGGING ON THE LEEWARD SIDE IS NORMALLY
QUITE SLACK WHEN A BOAT IS HEELED, AND IT IS EASY TO ADJUST IT TOO
TIGHT WHICH CAN DESTROY THE PROPER TUNE AND PUT A GREAT STRAIN
ON THE BOAT.
4) THE HEAD OF THE MAST SHOULD NOT "HOOK" TO WINDWARD.
IF NOT STRAIGHT, IT WOULD BE MORE DESIRABLE TO HAVE THE HEAD

Y-33 2-6
2-6. JIB SHEET LEAD:
The forward ends of the jib sheets will be secured to the ciew of the jib by bowline, or by making
"toggle and becket" — "Tabarly knot" (see Fig. 17).
Then the bitter end will be led outside of the shrouds and rove through the sliding block on the
track and turning block and led to the winch (see Fig. 18).
SHEET TOGGLED
INTO CLEW
Fig. 18
Fig. 17
2-7. CUNNINGHAM:
The gooseneck of the boom does not slide. Therefore, the tension on the luff of the main sail will be
adjusted by the Cunningham hauler (see Fig. 19).
2-8. BOOM VANG:
The boom vang is sometimes called the kicking strap and illustrated in Fig. 20. This is an important
device for shaping and controlling the mainsail. Its fundamental purpose is to pull the boom down,
preventing it from riding up when the sheet is eased.
SAIL
BOOM
Fig. 19
20

Y-33 2-5
"FALL-OFF" SLIGHTLY TO LEEWARD. THIS SHOULD GIVE THE MAST A
SMOOTH, EVEN CURVE FROM HEAD TO DECK. SIGHTING ALONG THE BACK
OF THE MAST ON EACH TACK, FROM DECK LEVEL, WILL GIVE A COM
PARISON AND INDICATE THE NECESSARY ADJUSTMENT.
5) WHEN RACING, THE BACKSTAY MAY BE TIGHTENED UP TO COMPENSATE
FOR THE ADDITIONAL FORWARD LOADING APPLIED BY THEGENOA. AT THE
CONCLUSION OF THE RACE IT IS BEST TO "SLACK-OFF" THE AMOUNT YOU
"TOOK-UP" ON THE BACKSTAY TURNBUKLE. THIS AVOIDS UNNECESSARY
STRAINS ON THE HULL AND RIG. UNDER NO CIRCUMSTANCES SHOULD ANY
OF THE RIGGING BE SET UP "BAR-TIGHT".
6) TOO MUCH TENSION ON THE BACKSTAY IS PROBABLY THE PRIME REASON
FOR MAST AND RIGGING FAILURE. BE EXTREMELY CAREFUL WITH HYDRAU
LIC TYPE ADJUSTERS.
2-3. HALYARD LEADS:
See Fig. 14
SPIN. POLE LIFT (green 1/8) •*
JIB HALYARD (yellow 1/4) ••
MAIN. HALYARD (red 1/4)
SPIN. HALYARD (green1/8)
SPIN. FORE GUY (green1/8)
FWD
FOREGUY
2-4. MAIN SHEET LEAD:
See Fig. 15
Fig. 14
2-5. MAIN SHEET TRAVELLER ADJUST:
See Fig. 16
Fig. 15
Fig. 16

Y-33 2-7
r
2-9. REEF LINE AND REEFING:
(1) Rigging the Reef Line:
Three (3) reef lines are rigged onto the boom. The aftermost line is the first reef iine (see Fig.
21). Reeve it through the first reef cringie on the leech and secure it to the eye on the top of the
boom on the opposite side by a bowline.
The second and third reef lines wiil be arranged similariy.
Fig. 21
(2) Reefing:
Most of the sailboats in beating wili lose speed and beating angies relativeiy if the boat heeis
more than 30 degrees. This is the time to shorten sail by changing the jib to a smaller one
and/or by reefing the main accordingly. The following method of reefing is calied "Jiffy
Reefing" and also "Slab Reefing" derived from the slab line which was used to haul up the
foot of square sails.
It is really a jiffy and quick reef permitting the main to be reefed underway without dropping or
using roller reef.
1) Stand-by:
Helmsman: slack the main sheet
No. 1 Crew: slack the boom vang and main halyard
No. 2 Crew: haul In the reef line.
2) Go (Reef):
1. Slack boom vang.
2. Slack main sheet.
3. Drop halyard to the mark predetermined and hook the tack reef cringle to the hook on
the gooseneck.
4. Haul main haiyard and secure.
5. Pull reef line tight and cleat.
6. Sheet in main.
7. Carefully tie reef points or lash down the sail by the buntline.