Club Certificate2025
Bell BellKOR214
Korean Sailing Federation
Olympic Convention Center
Olympic-ro 424
Songpa-gu, Seoul, S.Korea
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles43.0°43.0°40.8°38.8°37.2°37.0°36.7°37.1°38.2°
Beat VMG2.463.384.084.564.834.945.015.054.99
52°3.845.136.006.466.706.826.896.956.96
60°4.095.396.216.626.846.987.067.157.18
75°4.245.566.356.756.997.177.317.487.57
90°4.185.566.446.857.057.257.457.778.01
110°4.205.626.567.007.317.577.808.158.49
120°4.035.456.446.957.317.647.968.639.18
135°3.524.895.976.697.117.487.868.7910.48
150°2.844.075.166.116.757.147.498.279.49
Run VMG2.453.524.475.306.036.556.957.618.35
Gybe Angles145.3°145.3°150.5°152.4°160.4°169.3°177.2°177.7°167.6°
APH ToD:581.3CDL: 8.207APH ToT: 1.0321CertNo:068/25
BOAT
ClassYOKOYAMA 33RDesignerI.YOKOYAMABuilderTSUBOI YACHTAge date04/1990Series date01/1988Offset fileJCBIY47.OFFData fileKOR214
HULL
Length Overall10.060 mMaximum Beam3.386 mDraft1.886 mDisplacement3,748 kgDLR7.5703IMS DivisionPerformanceDynamic Allowance0.160%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.400m
CREW
Maximum weight493 kg(default)Minimum weight363 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail31.3231.71Headsail Luffed21.7821.78Headsail FlyingSymmetric77.2777.27Asymmetric
STORM SAIL AREAS (m²)
Trysail10.06Storm Jib6.97Heavy Weather Jib18.80
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
38486460
The owner and any other person in charge is responsible that boat is complying with her certificate in accordance with RRS 78.1 and ORC Rule 304.
Club Certificate2025
Bell BellKOR214
Korean Sailing Federation
Olympic Convention Center
Olympic-ro 424
Songpa-gu, Seoul, S.Korea
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1463.81065.5881.4790.0746.1728.2718.4713.3721.8
52°938.6701.7599.8556.9537.6527.7522.5517.6517.0
60°881.0667.5579.3543.7526.1515.8509.7503.5501.6
75°848.2647.5566.5533.1514.8501.9492.4481.3475.7
90°861.0647.7558.6525.7510.4496.4483.3463.3449.2
110°856.3640.0548.5514.0492.5475.6461.8441.7423.8
120°892.3660.0558.8517.8492.4471.2452.3417.3392.3
135°1022.1736.6603.1538.0506.3481.0457.9409.7343.4
150°1268.3885.6697.0589.4533.0504.3480.5435.1379.5
Run VMG1467.71022.6804.6679.0596.9549.3518.2473.2431.3
Selected Courses
Windward / Leeward1464.71044.1843.0734.5671.5638.7618.3593.3576.6
All purpose1100.8802.2665.2598.6562.4541.7526.8504.7485.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward704.10.8522
All purpose581.31.0321
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7443
Downwind "popa"0.9044
70% up, 30% down "Ilhabela"0.7861
30% up, 70% down "Ilhabela-inverso"0.8496
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Predominantly Upwind627.90.9555
Predominantly Downwind586.71.0227
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low733.70.8177
Triple Number AP Medium577.91.0382
Triple Number AP High522.21.1489
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Single Number Predominant Upwind652.10.9201
Single Number Predominant Reaching579.11.0361
Single Number Predominant Downwind611.10.9818
Predominant Upwind - Low881.50.6806
Predominant Upwind - Low/Med683.10.8784
Predominant Upwind - Medium609.80.9840
Predominant Upwind - Med/High573.81.0456
Predominant Upwind - High557.51.0762
Predominant Downwind Low881.00.6811
Predominant Downwind Low/Med659.20.9101
Predominant Downwind Medium567.41.0574
Predominant Downwind Med/High510.81.1746
Predominant Downwind High473.81.2665
Predominant Reaching Low783.10.7662
Predominant Reaching Low/Med609.80.9839
Predominant Reaching Medium545.41.1002
Predominant Reaching Med/High506.11.1856
Predominant Reaching High478.71.2533
SA/DSPL Upwind21.91SA/DSPL Downwind44.81
Scoring OptionTODTOT
5-Band Windward/Leeward Low1099.20.5458
5-Band Windward/Leeward Low/Med809.00.7416
5-Band Windward/Leeward Medium686.40.8741
5-Band Windward/Leeward Med/High622.00.9646
5-Band Windward/Leeward High594.71.0089
Windward/Leeward 60-40 Low1103.20.5439
Windward/Leeward 60-40 Low/Med818.50.7331
Windward/Leeward 60-40 Medium701.00.8559
Windward/Leeward 60-40 Med/High641.90.9347
Windward/Leeward 60-40 High618.90.9695
5-Band AP Low806.20.7442
5-Band AP Low/Med646.70.9278
5-Band AP Medium570.51.0516
5-Band AP Med/High528.61.1351
5-Band AP High505.21.1877
5-Band SF Bay Tour - Low947.50.6332
5-Band SF Bay Tour - Low/Med774.70.7745
5-Band SF Bay Tour - Medium665.80.9011
5-Band SF Bay Tour - Med/High609.50.9845
5-Band SF Bay Tour - High583.21.0288
Chicago-Mac Upwind0.8942
Chicago-Mac All Purpose0.9232
Chicago-Mac Downwind0.9479
Bayview-Mac Cove Island0.6841
Bayview-Mac Shore0.6891
Harvest Moon Regatta511.81.1723
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance630.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating630.20.9521
FinRating, kevyt tuuli1078.30.9274
FinRating, kova tuuli507.90.9844
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9521
Triple Number Coastal/Long Distance Low0.8177
Triple Number Coastal/Long Distance Medium1.0383
Triple Number Coastal/Long Distance High1.1489
Triple Number Windward/Leeward Low0.6359
Triple Number Windward/Leeward Medium0.8589
Triple Number Windward/Leeward High0.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
For information
General Purpose Handicap (GPH)649.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low733.8
Triple Number Coastal/Long Distance Medium577.9
Triple Number Coastal/Long Distance High522.2
Triple Number Windward/Leeward Low943.5
Triple Number Windward/Leeward Medium698.6
Triple Number Windward/Leeward High614.0
Predominantly Upwind627.9
Predominantly Downwind586.7
Predominantly Reaching566.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8177
Triple Number Coastal/Long Distance Medium1.0383
Triple Number Coastal/Long Distance High1.1489
Triple Number Windward/Leeward Low0.6359
Triple Number Windward/Leeward Medium0.8589
Triple Number Windward/Leeward High0.9772
Coastal/Long Distance0.9521
Predominantly Upwind0.9555
Predominantly Downwind1.0227
For information
General Purpose Handicap (GPH)649.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0321
Distanseseilas Trippeltall svak vind0.8177
Distanseseilas Trippeltall mellomvind1.0383
Distanseseilas Trippeltall sterk vind1.1489
Pølsebane Trippeltall svak vind0.6359
Pølsebane Trippeltall mellomvind0.8589
Pølsebane Trippeltall sterk vind0.9772
Motvind Singeltall0.9555
Medvind Singeltall1.0227
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Coastal/Long Distance630.20.9521
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind627.90.9555
Predominantly Downwind586.71.0227
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore581.61.0317
Cape Doctor Coastal491.31.2213
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8177
Triple Number Coastal/Long Distance Medium1.0383
Triple Number Coastal/Long Distance High1.1489
Triple Number Windward/Leeward Low0.6359
Triple Number Windward/Leeward Medium0.8589
Triple Number Windward/Leeward High0.9772
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8177
Triple Number Coastal/Long Distance Medium1.0383
Triple Number Coastal/Long Distance High1.1489
Triple Number Windward/Leeward Low0.6359
Triple Number Windward/Leeward Medium0.8589
Triple Number Windward/Leeward High0.9772
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Predominantly Upwind627.90.9555
Predominantly Downwind586.71.0227
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance630.20.9521
Triple Number Coastal/Long Distance Low733.80.8177
Triple Number Coastal/Long Distance Medium577.91.0383
Triple Number Coastal/Long Distance High522.21.1489
Triple Number Windward/Leeward Low943.50.6359
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1553.21041.9794.1667.7597.1561.1532.5485.0466.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low733.70.8177
Triple Number AP Medium577.91.0382
Triple Number AP High522.21.1489
Triple Number Windward/Leeward Low984.90.6092
Triple Number Windward/Leeward Medium698.60.8589
Triple Number Windward/Leeward High614.00.9772
Single Number Predominant Upwind652.10.9201
Single Number Predominant Reaching579.11.0361
Single Number Predominant Downwind611.10.9818
Predominant Upwind - Low881.50.6806
Predominant Upwind - Low/Med683.10.8784
Predominant Upwind - Medium609.80.9840
Predominant Upwind - Med/High573.81.0456
Predominant Upwind - High557.51.0762
Predominant Downwind Low881.00.6811
Predominant Downwind Low/Med659.20.9101
Predominant Downwind Medium567.41.0574
Predominant Downwind Med/High510.81.1746
Predominant Downwind High473.81.2665
Predominant Reaching Low783.10.7662
Predominant Reaching Low/Med609.80.9839
Predominant Reaching Medium545.41.1002
Predominant Reaching Med/High506.11.1856
Predominant Reaching High478.71.2533
SA/DSPL Upwind21.91SA/DSPL Downwind44.81
Scoring OptionTODTOT
5-Band Windward/Leeward Low1099.20.5458
5-Band Windward/Leeward Low/Med809.00.7416
5-Band Windward/Leeward Medium686.40.8741
5-Band Windward/Leeward Med/High622.00.9646
5-Band Windward/Leeward High594.71.0089
Windward/Leeward 60-40 Low1103.20.5439
Windward/Leeward 60-40 Low/Med818.50.7331
Windward/Leeward 60-40 Medium701.00.8559
Windward/Leeward 60-40 Med/High641.90.9347
Windward/Leeward 60-40 High618.90.9695
5-Band AP Low806.20.7442
5-Band AP Low/Med646.70.9278
5-Band AP Medium570.51.0516
5-Band AP Med/High528.61.1351
5-Band AP High505.21.1877
5-Band SF Bay Tour - Low947.50.6332
5-Band SF Bay Tour - Low/Med774.70.7745
5-Band SF Bay Tour - Medium665.80.9011
5-Band SF Bay Tour - Med/High609.50.9845
5-Band SF Bay Tour - High583.21.0288
Chicago-Mac Upwind0.8942
Chicago-Mac All Purpose0.9232
Chicago-Mac Downwind0.9479
Bayview-Mac Cove Island0.6841
Bayview-Mac Shore0.6891
Harvest Moon Regatta511.81.1723
Club Certificate2025
Bell BellKOR214
Korean Sailing Federation
Olympic Convention Center
Olympic-ro 424
Songpa-gu, Seoul, S.Korea
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassYOKOYAMA 33RMeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.060Max. Beam3.386Draft1.886Displacement3,748Wetted area18.71IMS L8.402LSM07.910Acc. length10.060Sink (kg/mm) 14.38
VCGD0.052VCGM0.046RM Rated (kg·m) 73.0Limit of positive stability(°) N/AStability IndexN/ADefault crew weight493Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0015
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P12.100IG11.800ISP11.850MDT10.092MDL10.142MDT2MDL2TLTaperMWGO
E4.750J3.440BAS1.600FSDFoilSFJ0.000SPL3.515WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date29/08/2024
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Bell BellKOR214
Korean Sailing Federation
Olympic Convention Center
Olympic-ro 424
Songpa-gu, Seoul, S.Korea
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.160.821.492.693.7231.3229/08/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.080.531.002.053.164.3010.35NoNo 21.7829/08/2024
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment013.6513.5513.606.826.8177.2729/08/2024