Club Certificate2025
VikontezaCRO 2969
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 Angles45.8°45.8°44.1°42.5°41.4°40.3°39.9°40.1°41.3°
Beat VMG2.273.173.924.494.945.255.395.445.33
52°3.634.986.016.757.277.607.797.907.87
60°3.935.326.347.067.527.828.018.178.19
75°4.135.566.587.287.728.028.268.618.74
90°4.165.716.897.658.098.388.558.819.19
110°4.225.837.057.808.268.679.049.6410.01
120°4.105.676.887.688.178.588.999.8110.65
135°3.625.076.297.227.838.278.679.4910.48
150°2.974.275.436.417.197.748.128.809.50
Run VMG2.573.704.705.556.236.757.197.888.46
Gybe Angles143.0°143.0°147.4°148.9°150.5°154.0°159.2°164.2°163.5°
APH ToD:547.2CDL: 9.879APH ToT: 1.0965CertNo:132/25
BOAT
ClassDufour 41 PerformanceDesignerFelciBuilderDufourAge date01/2025Series date12/2022Offset fileDUR41-025prg.offData fileCRO2969
HULL
Length Overall12.000 mMaximum Beam4.302 mDraft2.095 mDisplacement9,980 kgDLR7.0715IMS DivisionCruiser/RacerDynamic Allowance0.340%Age Allowance0.098%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.480m
CREW
Maximum weight811 kg(default)Minimum weight681 kg ✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail45.3246.08Headsail Luffed39.5839.58Headsail FlyingSymmetricAsymmetric122.72122.72 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail13.06Storm Jib14.83Heavy Weather Jib40.03
SAIL LIMITS
Headsails6
✱ One set on the forestay
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
VikontezaCRO 2969
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 VMG1589.11133.9917.4802.0729.4686.3667.5661.6675.8
52°992.3723.6599.0533.3495.3473.6462.3456.0457.2
60°915.4676.3567.5510.2479.0460.4449.2440.5439.5
75°871.0647.4546.9494.4466.4449.1436.0418.3412.0
90°866.0630.6522.4470.5444.8429.5421.1408.5391.6
110°852.5617.9510.4461.4435.6415.4398.2373.6359.7
120°877.1635.1523.0468.9440.8419.4400.4367.0337.9
135°995.6709.8572.5498.5459.5435.5415.2379.4343.4
150°1213.3843.6662.9561.9500.5465.1443.1409.0379.0
Run VMG1400.9974.1765.5648.8577.7533.5500.8457.1425.6
Selected Courses
Windward / Leeward1494.71054.0841.4725.4653.5609.9584.2559.4550.7
All purpose1121.4802.8651.6571.6525.0496.6478.5458.0446.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward686.40.8742
All purpose547.21.0965
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7502
Downwind "popa"0.9422
70% up, 30% down "Ilhabela"0.7991
30% up, 70% down "Ilhabela-inverso"0.8750
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Predominantly Upwind598.81.0019
Predominantly Downwind553.01.0849
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low727.20.8251
Triple Number AP Medium544.11.1028
Triple Number AP High475.31.2622
Triple Number Windward/Leeward Low990.90.6055
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Single Number Predominant Upwind626.20.9582
Single Number Predominant Reaching540.61.1098
Single Number Predominant Downwind578.21.0377
Predominant Upwind - Low904.00.6637
Predominant Upwind - Low/Med673.70.8906
Predominant Upwind - Medium576.01.0416
Predominant Upwind - Med/High524.01.1451
Predominant Upwind - High507.91.1813
Predominant Downwind Low861.50.6964
Predominant Downwind Low/Med630.20.9521
Predominant Downwind Medium530.91.1301
Predominant Downwind Med/High471.91.2715
Predominant Downwind High440.61.3618
Predominant Reaching Low775.40.7738
Predominant Reaching Low/Med580.11.0343
Predominant Reaching Medium499.91.2002
Predominant Reaching Med/High455.41.3177
Predominant Reaching High433.41.3844
SA/DSPL Upwind18.18SA/DSPL Downwind35.98
Scoring OptionTODTOT
5-Band Windward/Leeward Low1111.10.5400
5-Band Windward/Leeward Low/Med804.10.7462
5-Band Windward/Leeward Medium668.10.8981
5-Band Windward/Leeward Med/High590.21.0167
5-Band Windward/Leeward High562.21.0673
Windward/Leeward 60-40 Low1127.60.5321
Windward/Leeward 60-40 Low/Med819.50.7322
Windward/Leeward 60-40 Medium683.40.8779
Windward/Leeward 60-40 Med/High607.10.9883
Windward/Leeward 60-40 High582.71.0296
5-Band AP Low798.60.7513
5-Band AP Low/Med627.00.9570
5-Band AP Medium534.71.1222
5-Band AP Med/High482.01.2448
5-Band AP High459.61.3055
5-Band SF Bay Tour - Low958.00.6263
5-Band SF Bay Tour - Low/Med769.50.7797
5-Band SF Bay Tour - Medium643.30.9326
5-Band SF Bay Tour - Med/High572.11.0487
5-Band SF Bay Tour - High546.71.0975
Chicago-Mac Upwind0.9214
Chicago-Mac All Purpose0.9627
Chicago-Mac Downwind0.9977
Bayview-Mac Cove Island0.6878
Bayview-Mac Shore0.6921
Harvest Moon Regatta466.51.2862
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance599.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating599.01.0016
FinRating, kevyt tuuli1086.30.9206
FinRating, kova tuuli462.41.0813
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0016
Triple Number Coastal/Long Distance Low0.8251
Triple Number Coastal/Long Distance Medium1.1029
Triple Number Coastal/Long Distance High1.2622
Triple Number Windward/Leeward Low0.6331
Triple Number Windward/Leeward Medium0.8795
Triple Number Windward/Leeward High1.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
For information
General Purpose Handicap (GPH)619.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low727.2
Triple Number Coastal/Long Distance Medium544.0
Triple Number Coastal/Long Distance High475.4
Triple Number Windward/Leeward Low947.7
Triple Number Windward/Leeward Medium682.2
Triple Number Windward/Leeward High581.3
Predominantly Upwind598.8
Predominantly Downwind553.0
Predominantly Reaching527.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8251
Triple Number Coastal/Long Distance Medium1.1029
Triple Number Coastal/Long Distance High1.2622
Triple Number Windward/Leeward Low0.6331
Triple Number Windward/Leeward Medium0.8795
Triple Number Windward/Leeward High1.0322
Coastal/Long Distance1.0016
Predominantly Upwind1.0019
Predominantly Downwind1.0849
For information
General Purpose Handicap (GPH)619.1
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0965
Distanseseilas Trippeltall svak vind0.8251
Distanseseilas Trippeltall mellomvind1.1029
Distanseseilas Trippeltall sterk vind1.2622
Pølsebane Trippeltall svak vind0.6331
Pølsebane Trippeltall mellomvind0.8795
Pølsebane Trippeltall sterk vind1.0322
Motvind Singeltall1.0019
Medvind Singeltall1.0849
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Coastal/Long Distance599.01.0016
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind598.81.0019
Predominantly Downwind553.01.0849
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore553.31.0844
Cape Doctor Coastal450.01.3333
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8251
Triple Number Coastal/Long Distance Medium1.1029
Triple Number Coastal/Long Distance High1.2622
Triple Number Windward/Leeward Low0.6331
Triple Number Windward/Leeward Medium0.8795
Triple Number Windward/Leeward High1.0322
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8251
Triple Number Coastal/Long Distance Medium1.1029
Triple Number Coastal/Long Distance High1.2622
Triple Number Windward/Leeward Low0.6331
Triple Number Windward/Leeward Medium0.8795
Triple Number Windward/Leeward High1.0322
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Predominantly Upwind598.81.0019
Predominantly Downwind553.01.0849
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance599.01.0016
Triple Number Coastal/Long Distance Low727.20.8251
Triple Number Coastal/Long Distance Medium544.01.1029
Triple Number Coastal/Long Distance High475.41.2622
Triple Number Windward/Leeward Low947.70.6331
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1577.81046.1787.0648.5563.0515.7483.1436.4420.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low727.20.8251
Triple Number AP Medium544.11.1028
Triple Number AP High475.31.2622
Triple Number Windward/Leeward Low990.90.6055
Triple Number Windward/Leeward Medium682.20.8795
Triple Number Windward/Leeward High581.31.0322
Single Number Predominant Upwind626.20.9582
Single Number Predominant Reaching540.61.1098
Single Number Predominant Downwind578.21.0377
Predominant Upwind - Low904.00.6637
Predominant Upwind - Low/Med673.70.8906
Predominant Upwind - Medium576.01.0416
Predominant Upwind - Med/High524.01.1451
Predominant Upwind - High507.91.1813
Predominant Downwind Low861.50.6964
Predominant Downwind Low/Med630.20.9521
Predominant Downwind Medium530.91.1301
Predominant Downwind Med/High471.91.2715
Predominant Downwind High440.61.3618
Predominant Reaching Low775.40.7738
Predominant Reaching Low/Med580.11.0343
Predominant Reaching Medium499.91.2002
Predominant Reaching Med/High455.41.3177
Predominant Reaching High433.41.3844
SA/DSPL Upwind18.18SA/DSPL Downwind35.98
Scoring OptionTODTOT
5-Band Windward/Leeward Low1111.10.5400
5-Band Windward/Leeward Low/Med804.10.7462
5-Band Windward/Leeward Medium668.10.8981
5-Band Windward/Leeward Med/High590.21.0167
5-Band Windward/Leeward High562.21.0673
Windward/Leeward 60-40 Low1127.60.5321
Windward/Leeward 60-40 Low/Med819.50.7322
Windward/Leeward 60-40 Medium683.40.8779
Windward/Leeward 60-40 Med/High607.10.9883
Windward/Leeward 60-40 High582.71.0296
5-Band AP Low798.60.7513
5-Band AP Low/Med627.00.9570
5-Band AP Medium534.71.1222
5-Band AP Med/High482.01.2448
5-Band AP High459.61.3055
5-Band SF Bay Tour - Low958.00.6263
5-Band SF Bay Tour - Low/Med769.50.7797
5-Band SF Bay Tour - Medium643.30.9326
5-Band SF Bay Tour - Med/High572.11.0487
5-Band SF Bay Tour - High546.71.0975
Chicago-Mac Upwind0.9214
Chicago-Mac All Purpose0.9627
Chicago-Mac Downwind0.9977
Bayview-Mac Cove Island0.6878
Bayview-Mac Shore0.6921
Harvest Moon Regatta466.51.2862
Club Certificate2025
VikontezaCRO 2969
Hrvatski jedriličarski savez
Osječka 11
21000 Split
CROATIA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 41 PerformanceMeasurement26/04/2024HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.000Max. Beam4.302Draft2.095Displacement9,980Wetted area37.46IMS L11.376LSM011.216Acc. length12.000Sink (kg/mm) 29.57
VCGD0.258VCGM0.260RM Rated (kg·m) 306.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight811Declared crew weightN/A
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.480PBWPIPA0.0009
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P15.700IG16.300ISP17.000MDT10.160MDL10.240MDT20.160MDL20.240TL0.000MWGO0.240
E4.750J4.500BAS1.590FSDSFJ0.000SPLWPL0.000TPS5.250BD0.220MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date26/04/2024
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
VikontezaCRO 2969
Hrvatski jedriličarski savez
Osječka 11
21000 Split
CROATIA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.100.941.813.194.1345.3204/04/2025Full batten EPEX
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.050.571.112.333.695.1816.15NoNo 39.5804/04/2025Epex
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment118.3015.6016.958.668.8098%122.7204/04/2025
CRUISER/RACER REQUIREMENTS*
Accommodation length12.0 mTable area0.55 m²Headroom1.81 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity150 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity90 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.