Club Certificate2025
Sombra del vientoCRO 2840
Hrvatski jedriličarski savez
Osječka 11
21000 Split
CROATIA
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 Angles46.2°46.2°44.4°42.9°41.5°40.4°39.8°40.5°41.7°
Beat VMG2.323.274.094.715.215.585.785.875.79
52°3.725.156.297.127.718.118.348.508.50
60°4.055.536.667.457.998.358.598.808.83
75°4.295.816.937.718.218.568.839.259.42
90°4.275.917.218.098.618.949.149.449.89
110°4.366.067.408.278.809.259.6710.3410.78
120°4.245.907.238.148.709.169.6110.5411.51
135°3.735.276.597.618.318.809.2410.1511.30
150°3.064.425.656.707.578.208.649.3810.16
Run VMG2.653.834.895.806.567.137.598.358.99
Gybe Angles142.3°142.3°146.2°148.7°150.1°152.5°157.1°163.0°162.4°
APH ToD:518.1CDL: 11.177APH ToT: 1.1581CertNo:172/25
BOAT
ClassDufour 470DesignerFelciBuilderDufourAge date01/2021Series date01/2021Offset fileDufour470classic.offData fileCRO2840
HULL
Length Overall13.990 mMaximum Beam4.740 mDraft2.276 mDisplacement13,172 kgDLR6.3672IMS DivisionCruiser/RacerDynamic Allowance0.350%Age Allowance0.130%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.410m
CREW
Maximum weight972 kg(default)Minimum weight827 kg ✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail56.1757.07Headsail Luffed46.8646.86Headsail FlyingSymmetricAsymmetric150.35150.35 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail16.51Storm Jib16.30Heavy Weather Jib43.99
SAIL LIMITS
Headsails6
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
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
Sombra del vientoCRO 2840
Hrvatski jedriličarski savez
Osječka 11
21000 Split
CROATIA
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 VMG1554.51099.4881.0763.7690.5645.4623.1613.0622.2
52°968.7698.8572.1505.9467.1444.0431.5423.5423.7
60°888.7650.5540.6483.0450.6431.2419.3409.2407.5
75°839.3619.6519.5467.1438.3420.7407.6389.3382.2
90°844.0608.8499.0445.1418.1402.5394.0381.5363.8
110°825.2594.1486.5435.1408.9389.2372.3348.1333.9
120°848.3609.7497.7442.4413.9393.2374.7341.7312.7
135°966.3683.0546.4473.0433.1409.2389.7354.7318.7
150°1175.4814.7637.6537.2475.7439.0416.6383.6354.5
Run VMG1357.3940.8736.3620.4549.1505.1474.1431.0400.2
Selected Courses
Windward / Leeward1455.71020.1808.6692.0619.8575.2548.6522.0511.2
All purpose1090.7775.0623.8543.2495.9466.8448.2426.8414.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward652.20.9199
All purpose518.11.1581
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7901
Downwind "popa"0.9867
70% up, 30% down "Ilhabela"0.8403
30% up, 70% down "Ilhabela-inverso"0.9181
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Predominantly Upwind567.51.0572
Predominantly Downwind525.01.1428
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low699.40.8579
Triple Number AP Medium515.11.1647
Triple Number AP High444.81.3489
Triple Number Windward/Leeward Low956.90.6271
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Single Number Predominant Upwind594.61.0091
Single Number Predominant Reaching512.91.1698
Single Number Predominant Downwind549.81.0913
Predominant Upwind - Low875.20.6856
Predominant Upwind - Low/Med643.70.9321
Predominant Upwind - Medium544.71.1016
Predominant Upwind - Med/High490.41.2235
Predominant Upwind - High472.41.2700
Predominant Downwind Low832.20.7210
Predominant Downwind Low/Med602.30.9962
Predominant Downwind Medium502.71.1935
Predominant Downwind Med/High443.61.3527
Predominant Downwind High412.31.4554
Predominant Reaching Low749.20.8009
Predominant Reaching Low/Med553.41.0843
Predominant Reaching Medium472.11.2710
Predominant Reaching Med/High426.71.4061
Predominant Reaching High404.31.4840
SA/DSPL Upwind18.31SA/DSPL Downwind36.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1076.20.5575
5-Band Windward/Leeward Low/Med770.80.7784
5-Band Windward/Leeward Medium634.20.9461
5-Band Windward/Leeward Med/High554.61.0819
5-Band Windward/Leeward High524.71.1434
Windward/Leeward 60-40 Low1092.70.5491
Windward/Leeward 60-40 Low/Med785.40.7640
Windward/Leeward 60-40 Medium648.40.9253
Windward/Leeward 60-40 Med/High569.81.0529
Windward/Leeward 60-40 High543.11.1049
5-Band AP Low770.60.7786
5-Band AP Low/Med598.81.0020
5-Band AP Medium505.61.1867
5-Band AP Med/High451.71.3282
5-Band AP High428.31.4009
5-Band SF Bay Tour - Low925.60.6482
5-Band SF Bay Tour - Low/Med737.10.8140
5-Band SF Bay Tour - Medium610.10.9835
5-Band SF Bay Tour - Med/High536.91.1176
5-Band SF Bay Tour - High509.51.1776
Chicago-Mac Upwind0.9680
Chicago-Mac All Purpose1.0110
Chicago-Mac Downwind1.0471
Bayview-Mac Cove Island0.7134
Bayview-Mac Shore0.7178
Harvest Moon Regatta439.41.3654
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance568.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating568.21.0560
FinRating, kevyt tuuli1052.50.9502
FinRating, kova tuuli430.71.1609
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0560
Triple Number Coastal/Long Distance Low0.8579
Triple Number Coastal/Long Distance Medium1.1649
Triple Number Coastal/Long Distance High1.3489
Triple Number Windward/Leeward Low0.6562
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
For information
General Purpose Handicap (GPH)588.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low699.4
Triple Number Coastal/Long Distance Medium515.1
Triple Number Coastal/Long Distance High444.8
Triple Number Windward/Leeward Low914.4
Triple Number Windward/Leeward Medium648.5
Triple Number Windward/Leeward High545.3
Predominantly Upwind567.5
Predominantly Downwind525.0
Predominantly Reaching499.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8579
Triple Number Coastal/Long Distance Medium1.1649
Triple Number Coastal/Long Distance High1.3489
Triple Number Windward/Leeward Low0.6562
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.1003
Coastal/Long Distance1.0560
Predominantly Upwind1.0572
Predominantly Downwind1.1428
For information
General Purpose Handicap (GPH)588.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1581
Distanseseilas Trippeltall svak vind0.8579
Distanseseilas Trippeltall mellomvind1.1649
Distanseseilas Trippeltall sterk vind1.3489
Pølsebane Trippeltall svak vind0.6562
Pølsebane Trippeltall mellomvind0.9252
Pølsebane Trippeltall sterk vind1.1003
Motvind Singeltall1.0572
Medvind Singeltall1.1428
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Coastal/Long Distance568.21.0560
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind567.51.0572
Predominantly Downwind525.01.1428
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore514.41.1663
Cape Doctor Coastal417.91.4357
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8579
Triple Number Coastal/Long Distance Medium1.1649
Triple Number Coastal/Long Distance High1.3489
Triple Number Windward/Leeward Low0.6562
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.1003
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8579
Triple Number Coastal/Long Distance Medium1.1649
Triple Number Coastal/Long Distance High1.3489
Triple Number Windward/Leeward Low0.6562
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.1003
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Predominantly Upwind567.51.0572
Predominantly Downwind525.01.1428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance568.21.0560
Triple Number Coastal/Long Distance Low699.40.8579
Triple Number Coastal/Long Distance Medium515.11.1649
Triple Number Coastal/Long Distance High444.81.3489
Triple Number Windward/Leeward Low914.40.6562
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1538.11012.2755.6617.5532.4484.9452.4406.8390.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low699.40.8579
Triple Number AP Medium515.11.1647
Triple Number AP High444.81.3489
Triple Number Windward/Leeward Low956.90.6271
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High545.31.1003
Single Number Predominant Upwind594.61.0091
Single Number Predominant Reaching512.91.1698
Single Number Predominant Downwind549.81.0913
Predominant Upwind - Low875.20.6856
Predominant Upwind - Low/Med643.70.9321
Predominant Upwind - Medium544.71.1016
Predominant Upwind - Med/High490.41.2235
Predominant Upwind - High472.41.2700
Predominant Downwind Low832.20.7210
Predominant Downwind Low/Med602.30.9962
Predominant Downwind Medium502.71.1935
Predominant Downwind Med/High443.61.3527
Predominant Downwind High412.31.4554
Predominant Reaching Low749.20.8009
Predominant Reaching Low/Med553.41.0843
Predominant Reaching Medium472.11.2710
Predominant Reaching Med/High426.71.4061
Predominant Reaching High404.31.4840
SA/DSPL Upwind18.31SA/DSPL Downwind36.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1076.20.5575
5-Band Windward/Leeward Low/Med770.80.7784
5-Band Windward/Leeward Medium634.20.9461
5-Band Windward/Leeward Med/High554.61.0819
5-Band Windward/Leeward High524.71.1434
Windward/Leeward 60-40 Low1092.70.5491
Windward/Leeward 60-40 Low/Med785.40.7640
Windward/Leeward 60-40 Medium648.40.9253
Windward/Leeward 60-40 Med/High569.81.0529
Windward/Leeward 60-40 High543.11.1049
5-Band AP Low770.60.7786
5-Band AP Low/Med598.81.0020
5-Band AP Medium505.61.1867
5-Band AP Med/High451.71.3282
5-Band AP High428.31.4009
5-Band SF Bay Tour - Low925.60.6482
5-Band SF Bay Tour - Low/Med737.10.8140
5-Band SF Bay Tour - Medium610.10.9835
5-Band SF Bay Tour - Med/High536.91.1176
5-Band SF Bay Tour - High509.51.1776
Chicago-Mac Upwind0.9680
Chicago-Mac All Purpose1.0110
Chicago-Mac Downwind1.0471
Bayview-Mac Cove Island0.7134
Bayview-Mac Shore0.7178
Harvest Moon Regatta439.41.3654
Club Certificate2025
Sombra del vientoCRO 2840
Hrvatski jedriličarski savez
Osječka 11
21000 Split
CROATIA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 470Measurement25/09/2021HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA13.990Max. Beam4.740Draft2.276Displacement13,172Wetted area45.42IMS L13.001LSM012.741Acc. length14.000Sink (kg/mm) 36.90
VCGD0.314VCGM0.335RM Rated (kg·m) 449.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight972Declared crew weightN/A
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.410PBWPIPA0.0007
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P17.400IG18.050ISP18.520MDT10.155MDL10.280MDT20.155MDL20.280TL0.000MW0.280GO0.280
E5.420J5.100BAS1.340FSD0.040SFJ0.200SPLWPLTPS5.900BD0.250MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date28/04/2023
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Sombra del vientoCRO 2840
Hrvatski jedriličarski savez
Osječka 11
21000 Split
CROATIA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.121.072.013.514.6256.1727/04/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.060.591.182.514.035.7217.55NoNo 46.8627/04/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment119.3916.4317.9110.109.97101%150.3527/04/2023
CRUISER/RACER REQUIREMENTS*
Accommodation length14.0 mTable area0.66 m²Headroom1.89 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity240 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity130 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.