Club Certificate2025
MarathiNOR 10542
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 Angles44.2°44.2°42.2°40.7°39.3°38.5°38.2°38.9°40.2°
Beat VMG2.283.173.884.404.784.995.085.125.04
52°3.594.885.826.446.837.057.157.237.23
60°3.835.156.086.667.017.227.357.467.48
75°3.975.326.276.837.167.407.607.847.95
90°3.865.296.366.997.337.517.698.118.38
110°3.905.376.487.117.507.848.138.528.81
120°3.755.196.317.017.447.828.188.869.35
135°3.324.665.796.667.197.587.968.779.80
150°2.723.945.056.016.767.227.598.319.16
Run VMG2.353.414.385.225.966.557.017.708.37
Gybe Angles145.9°145.9°150.1°152.3°158.8°165.5°172.7°177.2°176.8°
APH ToD:581.5CDL: 8.644APH ToT: 1.0318CertNo:7906
BOAT
ClassDufour 34 StandardDesignerUmbertoFeliciBuilderDufourAge date01/2003Series date01/2002Offset fileDUF34PERF.offData file7906
HULL
Length Overall10.280 mMaximum Beam3.482 mDraft1.927 mDisplacement5,231 kgDLR6.7353IMS DivisionCruiser/RacerDynamic Allowance0.280%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight610 kg(default)Minimum weight480 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail31.7032.45Headsail Luffed25.9325.93Headsail FlyingSymmetric77.9477.94Asymmetric
STORM SAIL AREAS (m²)
Trysail9.32Storm Jib8.27Heavy Weather Jib22.33
SAIL LIMITS
Headsails5Spinnakers4
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
MarathiNOR 10542
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 VMG1576.61135.6928.0818.3752.6721.2709.1703.6714.5
52°1001.8738.4618.9558.6526.8510.7503.2497.8498.0
60°940.6698.9591.9540.5513.9498.6489.6482.8481.1
75°907.7676.1574.4527.4502.8486.3473.8459.1452.9
90°932.5680.7566.4515.1491.4479.6468.2444.0429.5
110°923.9670.4555.6506.6480.1459.3442.7422.7408.5
120°959.4693.5570.7513.5483.9460.6440.1406.2385.0
135°1084.8772.1621.5540.5500.8475.0452.2410.6367.3
150°1324.9914.4712.6599.1532.9498.5474.6433.1392.9
Run VMG1530.91055.9822.7690.3604.0549.7513.8467.6430.3
Selected Courses
Windward / Leeward1552.71095.7875.3754.3678.3635.4611.5585.6572.4
All purpose1174.0842.2685.6604.6558.1531.6514.9492.8478.8
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward714.20.8401
All purpose581.51.0318
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7281
Downwind "popa"0.8929
70% up, 30% down "Ilhabela"0.7708
30% up, 70% down "Ilhabela-inverso"0.8361
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Predominantly Upwind631.20.9506
Predominantly Downwind589.81.0174
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low763.90.7855
Triple Number AP Medium577.71.0386
Triple Number AP High510.81.1746
Triple Number Windward/Leeward Low1030.30.5824
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Single Number Predominant Upwind658.50.9111
Single Number Predominant Reaching580.91.0328
Single Number Predominant Downwind617.10.9723
Predominant Upwind - Low931.30.6443
Predominant Upwind - Low/Med701.70.8551
Predominant Upwind - Medium608.40.9862
Predominant Upwind - Med/High561.91.0678
Predominant Upwind - High545.21.1006
Predominant Downwind Low921.50.6511
Predominant Downwind Low/Med672.90.8917
Predominant Downwind Medium566.51.0591
Predominant Downwind Med/High503.31.1922
Predominant Downwind High467.91.2824
Predominant Reaching Low823.50.7286
Predominant Reaching Low/Med619.80.9680
Predominant Reaching Medium539.11.1130
Predominant Reaching Med/High494.41.2136
Predominant Reaching High468.11.2818
SA/DSPL Upwind19.02SA/DSPL Downwind36.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1155.10.5194
5-Band Windward/Leeward Low/Med836.00.7177
5-Band Windward/Leeward Medium694.70.8637
5-Band Windward/Leeward Med/High616.70.9729
5-Band Windward/Leeward High587.81.0208
Windward/Leeward 60-40 Low1162.90.5160
Windward/Leeward 60-40 Low/Med847.60.7078
Windward/Leeward 60-40 Medium709.60.8455
Windward/Leeward 60-40 Med/High636.20.9432
Windward/Leeward 60-40 High611.50.9812
5-Band AP Low845.50.7097
5-Band AP Low/Med661.30.9073
5-Band AP Medium568.41.0555
5-Band AP Med/High517.61.1592
5-Band AP High494.21.2140
5-Band SF Bay Tour - Low994.30.6034
5-Band SF Bay Tour - Low/Med800.40.7496
5-Band SF Bay Tour - Medium672.10.8927
5-Band SF Bay Tour - Med/High603.30.9946
5-Band SF Bay Tour - High576.81.0402
Chicago-Mac Upwind0.8798
Chicago-Mac All Purpose0.9102
Chicago-Mac Downwind0.9353
Bayview-Mac Cove Island0.6561
Bayview-Mac Shore0.6607
Harvest Moon Regatta503.91.1907
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance633.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating633.30.9474
FinRating, kevyt tuuli1134.40.8815
FinRating, kova tuuli497.41.0052
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9474
Triple Number Coastal/Long Distance Low0.7855
Triple Number Coastal/Long Distance Medium1.0387
Triple Number Coastal/Long Distance High1.1746
Triple Number Windward/Leeward Low0.6088
Triple Number Windward/Leeward Medium0.8459
Triple Number Windward/Leeward High0.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
For information
General Purpose Handicap (GPH)656.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low763.8
Triple Number Coastal/Long Distance Medium577.6
Triple Number Coastal/Long Distance High510.8
Triple Number Windward/Leeward Low985.5
Triple Number Windward/Leeward Medium709.3
Triple Number Windward/Leeward High607.7
Predominantly Upwind631.2
Predominantly Downwind589.8
Predominantly Reaching566.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7855
Triple Number Coastal/Long Distance Medium1.0387
Triple Number Coastal/Long Distance High1.1746
Triple Number Windward/Leeward Low0.6088
Triple Number Windward/Leeward Medium0.8459
Triple Number Windward/Leeward High0.9873
Coastal/Long Distance0.9474
Predominantly Upwind0.9506
Predominantly Downwind1.0174
For information
General Purpose Handicap (GPH)656.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0318
Distanseseilas Trippeltall svak vind0.7855
Distanseseilas Trippeltall mellomvind1.0387
Distanseseilas Trippeltall sterk vind1.1746
Pølsebane Trippeltall svak vind0.6088
Pølsebane Trippeltall mellomvind0.8459
Pølsebane Trippeltall sterk vind0.9873
Motvind Singeltall0.9506
Medvind Singeltall1.0174
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Coastal/Long Distance633.30.9474
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind631.20.9506
Predominantly Downwind589.81.0174
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore576.41.0410
Cape Doctor Coastal483.01.2422
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7855
Triple Number Coastal/Long Distance Medium1.0387
Triple Number Coastal/Long Distance High1.1746
Triple Number Windward/Leeward Low0.6088
Triple Number Windward/Leeward Medium0.8459
Triple Number Windward/Leeward High0.9873
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7855
Triple Number Coastal/Long Distance Medium1.0387
Triple Number Coastal/Long Distance High1.1746
Triple Number Windward/Leeward Low0.6088
Triple Number Windward/Leeward Medium0.8459
Triple Number Windward/Leeward High0.9873
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Predominantly Upwind631.20.9506
Predominantly Downwind589.81.0174
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance633.30.9474
Triple Number Coastal/Long Distance Low763.80.7855
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High510.81.1746
Triple Number Windward/Leeward Low985.50.6088
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1645.51091.7822.3680.2595.1551.6520.6471.5456.2
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low763.90.7855
Triple Number AP Medium577.71.0386
Triple Number AP High510.81.1746
Triple Number Windward/Leeward Low1030.30.5824
Triple Number Windward/Leeward Medium709.30.8459
Triple Number Windward/Leeward High607.70.9873
Single Number Predominant Upwind658.50.9111
Single Number Predominant Reaching580.91.0328
Single Number Predominant Downwind617.10.9723
Predominant Upwind - Low931.30.6443
Predominant Upwind - Low/Med701.70.8551
Predominant Upwind - Medium608.40.9862
Predominant Upwind - Med/High561.91.0678
Predominant Upwind - High545.21.1006
Predominant Downwind Low921.50.6511
Predominant Downwind Low/Med672.90.8917
Predominant Downwind Medium566.51.0591
Predominant Downwind Med/High503.31.1922
Predominant Downwind High467.91.2824
Predominant Reaching Low823.50.7286
Predominant Reaching Low/Med619.80.9680
Predominant Reaching Medium539.11.1130
Predominant Reaching Med/High494.41.2136
Predominant Reaching High468.11.2818
SA/DSPL Upwind19.02SA/DSPL Downwind36.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1155.10.5194
5-Band Windward/Leeward Low/Med836.00.7177
5-Band Windward/Leeward Medium694.70.8637
5-Band Windward/Leeward Med/High616.70.9729
5-Band Windward/Leeward High587.81.0208
Windward/Leeward 60-40 Low1162.90.5160
Windward/Leeward 60-40 Low/Med847.60.7078
Windward/Leeward 60-40 Medium709.60.8455
Windward/Leeward 60-40 Med/High636.20.9432
Windward/Leeward 60-40 High611.50.9812
5-Band AP Low845.50.7097
5-Band AP Low/Med661.30.9073
5-Band AP Medium568.41.0555
5-Band AP Med/High517.61.1592
5-Band AP High494.21.2140
5-Band SF Bay Tour - Low994.30.6034
5-Band SF Bay Tour - Low/Med800.40.7496
5-Band SF Bay Tour - Medium672.10.8927
5-Band SF Bay Tour - Med/High603.30.9946
5-Band SF Bay Tour - High576.81.0402
Chicago-Mac Upwind0.8798
Chicago-Mac All Purpose0.9102
Chicago-Mac Downwind0.9353
Bayview-Mac Cove Island0.6561
Bayview-Mac Shore0.6607
Harvest Moon Regatta503.91.1907
Club Certificate2025
MarathiNOR 10542
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 34 StandardMeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.280Max. Beam3.482Draft1.927Displacement5,231Wetted area23.67IMS L9.415LSM09.191Acc. length10.300Sink (kg/mm) 18.35
VCGD0.030VCGM0.061RM Rated (kg·m) 118.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight610Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0031
EDL2.170ST10.048ST20.170
ST30.170ST40.098ST50.285
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P11.830IG12.790ISP12.940MDT10.120MDL10.180MDT20.120MDL20.180TL0.720MW0.180GO0.200
E4.500J3.740BAS1.680FSDFoilSFJ0.000SPL3.860WPLTPS0.000BD0.000MWT118.50MCG5.030
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.030Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
MarathiNOR 10542
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment990-2014021218500.160.921.692.913.7931.7012/02/2014
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment990-2021020110570.060.641.172.173.134.0412.22YesNo 25.9329/12/2020
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment398-20091029101012.7412.7412.747.440.0077.9429/10/2009345-20050508171012.6812.6812.687.140.0075.0408/05/2005
CRUISER/RACER REQUIREMENTS*
Accommodation length10.3 mTable area0.44 m²Headroom1.72 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity86 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity56 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.