Club
One Design
 Certificate
2023

Boat

KOKORO

ESP-3391_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.2°41.4°39.3°37.8°37.5°37.2°37.6°
Beat VMG2.943.624.094.324.414.464.48
52°4.485.385.846.076.166.236.29
60°4.725.586.016.246.366.446.53
75°4.865.706.156.446.666.796.94
90°5.055.916.266.506.827.087.42
110°5.106.026.536.907.157.407.91
120°4.905.916.476.977.407.828.71
135°4.315.396.156.657.167.759.81
150°3.644.685.556.206.667.128.32
Run VMG3.164.054.815.496.036.467.33
Gybe Angles144.8°149.6°152.0°160.1°175.4°177.2°174.8°

APH: 636.8

CDL: 6.513

GPH: 716.0

CertNo: 339101

BOAT
ClassSOLING ODDesignerJan LingeBuilderAge date01/1987Series date01/1969Offset filesoling.ODData fileE3391_C_OD
HULL
Length Overall8.180 mMaximum Beam1.904 mDraft1.304 mDisplacement1,036 kgDLR4.7417IMS DivisionSportboatDynamic Allowance0.180%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight300 kgMinimum weight215 kg * when appliedNon Manual PowerNoCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail15.9816.32Headsail Luffed8.508.50Headsail FlyingSymmetric36.3836.38Asymmetric
STORM SAIL AREAS (m²)
Trysail4.76Storm Jib2.82Heavy Weather Jib7.61
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment14.1 kg·mStability Index105.0
COMMENTS
SAILS AND TRIM BASED ON CLASS RULES
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.
ORC Ref  03510002RAOIssued on 11/08/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

KOKORO

ESP-3391_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1224.5993.7880.8834.0817.2807.5802.7
52°803.4669.2615.9593.2583.9578.0571.9
60°762.9644.6599.3576.8566.2559.2551.7
75°741.0631.7585.4558.7540.7530.6518.8
90°712.3608.9575.3553.7527.8508.6485.2
110°706.3597.6551.2522.1503.5486.8455.2
120°734.9609.6556.3516.8486.5460.1413.4
135°834.9667.3585.0541.6503.1464.7367.1
150°987.8769.7648.6580.6540.9505.3432.9
Run VMG1140.6888.7747.9655.5596.9557.3491.4
Selected Courses
Windward / Leeward1182.6941.2814.4744.7707.1682.4647.1
All purpose906.3738.7658.4615.0588.9569.1535.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward781.50.7677
All purpose636.80.9422
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6603
Downwind "popa"0.8270
70% up, 30% down "Ilhabela"0.7028
30% up, 70% down "Ilhabela-inverso"0.7688
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Predominantly Upwind694.90.8634
Predominantly Downwind639.70.9379
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low822.50.7295
Triple Number All Purpose Medium633.20.9475
Triple Number All Purpose High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Predominantly Upwind694.90.8634
Predominantly Downwind639.70.9379
Predominantly Upwind Low923.40.6498
Predominantly Upwind Medium720.00.8334
Predominantly Upwind High672.90.8917
Predominantly Downwind Low892.90.6720
Predominantly Downwind Medium632.10.9492
Predominantly Downwind High512.61.1706
Chicago-Mac Upwind0.8480
Chicago-Mac All Purpose0.8809
Chicago-Mac Downwind0.9212
Bayview-Mac Cove Island0.8165
Bayview-Mac Shore0.8214
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching604.20.9930
Predominantly Reaching Low740.80.8100
Predominantly Reaching Medium599.41.0010
Predominantly Reaching High517.91.1585
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1164.00.5155
5-Band Low / Medium966.70.6207
5-Band Medium761.20.7882
5-Band Medium / High685.80.8749
5-Band High653.20.9186
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance691.9
Triple Number Coastal/Long Distance Low822.5
Triple Number Coastal/Long Distance Medium633.2
Triple Number Coastal/Long Distance High561.5
Triple Number Windward/Leeward Low1061.9
Triple Number Windward/Leeward Medium774.9
Triple Number Windward/Leeward High675.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7295
Triple Number Coastal/Long Distance Medium0.9475
Triple Number Coastal/Long Distance High1.0686
Triple Number Windward/Leeward Low0.5650
Triple Number Windward/Leeward Medium0.7743
Triple Number Windward/Leeward High0.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low822.5
Triple Number Coastal/Long Distance Medium633.2
Triple Number Coastal/Long Distance High561.5
Triple Number Windward/Leeward Low1061.9
Triple Number Windward/Leeward Medium774.9
Triple Number Windward/Leeward High675.3
Predominantly Upwind694.9
Predominantly Downwind639.7
Predominantly Reaching616.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7295
Triple Number Coastal/Long Distance Medium0.9475
Triple Number Coastal/Long Distance High1.0686
Triple Number Windward/Leeward Low0.5650
Triple Number Windward/Leeward Medium0.7743
Triple Number Windward/Leeward High0.8885
Coastal/Long Distance0.8671
Predominantly Upwind0.8634
Predominantly Downwind0.9379
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7295
Tretall Distanseseilas Mellomvind0.9475
Tretall Distanseseilas Mye vind1.0686
Tretall Pølsebane Lite vind0.5650
Tretall Pølsebane Mellomvind0.7743
Tretall Pølsebane Mye vind0.8885
Distanseseilas ett tall (OSN 8-16kn)0.8671
Distanseseilas ett tall (APH 6-20kn)0.9422
Enkeltall Motvind0.8634
Enkeltall Medvind0.9379
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Coastal/Long Distance691.90.8671
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind694.90.8634
Predominantly Downwind639.70.9379
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore657.70.9123
Cape Doctor Coastal545.61.0998
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7295
Triple Number Coastal/Long Distance Medium0.9475
Triple Number Coastal/Long Distance High1.0686
Triple Number Windward/Leeward Low0.5650
Triple Number Windward/Leeward Medium0.7743
Triple Number Windward/Leeward High0.8885
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7295
Triple Number Coastal/Long Distance Medium0.9475
Triple Number Coastal/Long Distance High1.0686
Triple Number Windward/Leeward Low0.5650
Triple Number Windward/Leeward Medium0.7743
Triple Number Windward/Leeward High0.8885
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Predominantly Upwind694.90.8634
Predominantly Downwind639.70.9379
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance691.90.8671
Triple Number Coastal/Long Distance Low822.50.7295
Triple Number Coastal/Long Distance Medium633.20.9475
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1178.4884.6737.5655.0610.2573.2511.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low822.50.7295
Triple Number All Purpose Medium633.20.9475
Triple Number All Purpose High561.51.0686
Triple Number Windward/Leeward Low1061.90.5650
Triple Number Windward/Leeward Medium774.90.7743
Triple Number Windward/Leeward High675.30.8885
Predominantly Upwind694.90.8634
Predominantly Downwind639.70.9379
Predominantly Upwind Low923.40.6498
Predominantly Upwind Medium720.00.8334
Predominantly Upwind High672.90.8917
Predominantly Downwind Low892.90.6720
Predominantly Downwind Medium632.10.9492
Predominantly Downwind High512.61.1706
Chicago-Mac Upwind0.8480
Chicago-Mac All Purpose0.8809
Chicago-Mac Downwind0.9212
Bayview-Mac Cove Island0.8165
Bayview-Mac Shore0.8214
Harvest Moon Regatta545.91.0991
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy659.40.9100
San Francisco Bay Medium768.30.7810
Predominantly Reaching604.20.9930
Predominantly Reaching Low740.80.8100
Predominantly Reaching Medium599.41.0010
Predominantly Reaching High517.91.1585
Windward/Leeward 60-40 Low1071.30.5600
Windward/Leeward 60-40 Medium803.40.7468
Windward/Leeward 60-40 High720.50.8328
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1164.00.5155
5-Band Low / Medium966.70.6207
5-Band Medium761.20.7882
5-Band Medium / High685.80.8749
5-Band High653.20.9186
ORC Ref  03510002RAOIssued on 11/08/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

KOKORO

ESP-3391_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSOLING ODMeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.180Max. Beam1.904Draft1.304Displacement1,036Wetted area9.89IMS L6.615LSM06.022Acc. length6.188Sink (kg/mm) 6.83
VCGD-0.087VCGM-0.039RM Rated (kg·m) 14.1Limit of positive stability(°) 106.5Stability Index105.0
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P8.500IG7.505ISP7.565MDT10.070MDL10.110MDT20.040MDL20.050TL2.200MW0.110GO0.110
E3.200J2.650BAS0.705FSD0.000SFJ0.490SPL2.695WPLTPSBD0.075MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date15/10/1990MeasurerComment
SFFP0.478FFM0.700FF0.718LCFcl4.378SG1.0000
SAFP7.985FAM0.500FA0.509LCFsh4.483HBI0.593
W13.5W27.0W310.5W414.0
PD151.0PD2103.0PD3152.0PD4203.0
WD7.100PLM1977.00GSA12.6RSA8824.0RM17.0
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03510002RAOIssued on 11/08/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

KOKORO

ESP-3391_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.120.641.162.012.6915.98* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.042.397.01YesNo 8.50* Copied from legacy *
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentlarge7.507.507.505.885.5836.38small7.507.507.505.005.1631.45
ORC Ref  03510002RAOIssued on 11/08/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org