Double HandedClub 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 Angles43.5°43.5°41.5°40.7°40.1°39.9°39.9°40.5°42.2°
Beat VMG2.313.193.894.374.654.754.804.784.62
52°3.614.885.796.416.746.896.956.996.92
60°3.845.146.056.636.957.117.197.257.21
75°4.005.336.246.807.137.357.507.657.71
90°3.855.266.306.917.177.437.668.008.20
110°3.935.386.467.097.477.777.978.288.49
120°3.795.226.327.017.447.818.168.669.01
135°3.354.705.846.697.227.628.028.849.92
150°2.743.975.096.056.797.267.648.419.35
Run VMG2.373.444.415.255.996.587.037.758.46
Gybe Angles145.8°145.8°150.2°152.5°158.8°165.5°171.8°176.8°175.0°
APH ToD:587.1CDL: 8.358APH ToT: 1.0219CertNo: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 weight170 kg(default)Minimum weight120 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.
Double HandedClub 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 VMG1556.81127.0926.2824.1774.6757.3750.1753.5778.8
52°996.9738.3621.4561.7534.0522.5517.7515.0520.2
60°937.5700.3595.4543.0518.1506.1501.0496.6499.3
75°900.3675.1577.0529.2504.6489.9480.1470.7467.1
90°934.8684.8571.4520.9502.2484.2469.8449.8439.2
110°916.9668.9556.9507.9482.0463.0451.7435.0424.0
120°950.2689.3569.4513.4483.7460.7441.1415.9399.4
135°1076.2765.7616.7537.9498.7472.4449.2407.4363.0
150°1313.1907.1707.4595.0530.3496.0471.3427.9385.0
Run VMG1517.41047.4816.6685.5600.6547.2511.8464.4425.3
Selected Courses
Windward / Leeward1535.71087.2871.4754.8687.6652.2631.0609.0602.0
All purpose1163.7838.0684.7606.0564.3541.2526.3507.9498.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward722.70.8302
All purpose587.11.0219
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7103
Downwind "popa"0.8987
70% up, 30% down "Ilhabela"0.7580
30% up, 70% down "Ilhabela-inverso"0.8325
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Predominantly Upwind640.20.9372
Predominantly Downwind590.51.0161
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low761.30.7881
Triple Number AP Medium582.51.0300
Triple Number AP High523.21.1469
Triple Number Windward/Leeward Low1023.40.5863
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Single Number Predominant Upwind667.70.8986
Single Number Predominant Reaching584.91.0259
Single Number Predominant Downwind617.80.9712
Predominant Upwind - Low927.10.6472
Predominant Upwind - Low/Med703.80.8525
Predominant Upwind - Medium618.30.9705
Predominant Upwind - Med/High579.51.0354
Predominant Upwind - High567.71.0570
Predominant Downwind Low916.10.6550
Predominant Downwind Low/Med671.30.8938
Predominant Downwind Medium568.21.0560
Predominant Downwind Med/High506.81.1839
Predominant Downwind High472.51.2697
Predominant Reaching Low821.50.7304
Predominant Reaching Low/Med621.40.9655
Predominant Reaching Medium544.01.1029
Predominant Reaching Med/High500.51.1989
Predominant Reaching High476.31.2597
SA/DSPL Upwind19.02SA/DSPL Downwind36.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1145.70.5237
5-Band Windward/Leeward Low/Med834.90.7186
5-Band Windward/Leeward Medium703.50.8529
5-Band Windward/Leeward Med/High635.60.9440
5-Band Windward/Leeward High611.60.9811
Windward/Leeward 60-40 Low1153.40.5202
Windward/Leeward 60-40 Low/Med847.40.7080
Windward/Leeward 60-40 Medium720.90.8323
Windward/Leeward 60-40 Med/High659.30.9101
Windward/Leeward 60-40 High640.70.9365
5-Band AP Low841.70.7129
5-Band AP Low/Med661.70.9067
5-Band AP Medium574.21.0449
5-Band AP Med/High528.91.1343
5-Band AP High509.51.1777
5-Band SF Bay Tour - Low987.40.6077
5-Band SF Bay Tour - Low/Med799.80.7502
5-Band SF Bay Tour - Medium681.30.8807
5-Band SF Bay Tour - Med/High622.30.9642
5-Band SF Bay Tour - High600.90.9984
Chicago-Mac Upwind0.8709
Chicago-Mac All Purpose0.9051
Chicago-Mac Downwind0.9353
Bayview-Mac Cove Island0.6575
Bayview-Mac Shore0.6619
Harvest Moon Regatta506.21.1852
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance638.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating638.80.9393
FinRating, kevyt tuuli1125.60.8884
FinRating, kova tuuli512.60.9755
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9393
Triple Number Coastal/Long Distance Low0.7881
Triple Number Coastal/Long Distance Medium1.0301
Triple Number Coastal/Long Distance High1.1469
Triple Number Windward/Leeward Low0.6127
Triple Number Windward/Leeward Medium0.8374
Triple Number Windward/Leeward High0.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
For information
General Purpose Handicap (GPH)660.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low761.3
Triple Number Coastal/Long Distance Medium582.5
Triple Number Coastal/Long Distance High523.1
Triple Number Windward/Leeward Low979.3
Triple Number Windward/Leeward Medium716.5
Triple Number Windward/Leeward High628.0
Predominantly Upwind640.2
Predominantly Downwind590.5
Predominantly Reaching569.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7881
Triple Number Coastal/Long Distance Medium1.0301
Triple Number Coastal/Long Distance High1.1469
Triple Number Windward/Leeward Low0.6127
Triple Number Windward/Leeward Medium0.8374
Triple Number Windward/Leeward High0.9554
Coastal/Long Distance0.9393
Predominantly Upwind0.9372
Predominantly Downwind1.0161
For information
General Purpose Handicap (GPH)660.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0219
Distanseseilas Trippeltall svak vind0.7881
Distanseseilas Trippeltall mellomvind1.0301
Distanseseilas Trippeltall sterk vind1.1469
Pølsebane Trippeltall svak vind0.6127
Pølsebane Trippeltall mellomvind0.8374
Pølsebane Trippeltall sterk vind0.9554
Motvind Singeltall0.9372
Medvind Singeltall1.0161
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Coastal/Long Distance638.80.9393
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind640.20.9372
Predominantly Downwind590.51.0161
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore604.10.9932
Cape Doctor Coastal501.31.1970
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7881
Triple Number Coastal/Long Distance Medium1.0301
Triple Number Coastal/Long Distance High1.1469
Triple Number Windward/Leeward Low0.6127
Triple Number Windward/Leeward Medium0.8374
Triple Number Windward/Leeward High0.9554
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7881
Triple Number Coastal/Long Distance Medium1.0301
Triple Number Coastal/Long Distance High1.1469
Triple Number Windward/Leeward Low0.6127
Triple Number Windward/Leeward Medium0.8374
Triple Number Windward/Leeward High0.9554
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Predominantly Upwind640.20.9372
Predominantly Downwind590.51.0161
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance638.80.9393
Triple Number Coastal/Long Distance Low761.30.7881
Triple Number Coastal/Long Distance Medium582.51.0301
Triple Number Coastal/Long Distance High523.11.1469
Triple Number Windward/Leeward Low979.30.6127
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1625.21083.2819.3681.1602.5561.8530.8482.7471.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low761.30.7881
Triple Number AP Medium582.51.0300
Triple Number AP High523.21.1469
Triple Number Windward/Leeward Low1023.40.5863
Triple Number Windward/Leeward Medium716.50.8374
Triple Number Windward/Leeward High628.00.9554
Single Number Predominant Upwind667.70.8986
Single Number Predominant Reaching584.91.0259
Single Number Predominant Downwind617.80.9712
Predominant Upwind - Low927.10.6472
Predominant Upwind - Low/Med703.80.8525
Predominant Upwind - Medium618.30.9705
Predominant Upwind - Med/High579.51.0354
Predominant Upwind - High567.71.0570
Predominant Downwind Low916.10.6550
Predominant Downwind Low/Med671.30.8938
Predominant Downwind Medium568.21.0560
Predominant Downwind Med/High506.81.1839
Predominant Downwind High472.51.2697
Predominant Reaching Low821.50.7304
Predominant Reaching Low/Med621.40.9655
Predominant Reaching Medium544.01.1029
Predominant Reaching Med/High500.51.1989
Predominant Reaching High476.31.2597
SA/DSPL Upwind19.02SA/DSPL Downwind36.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1145.70.5237
5-Band Windward/Leeward Low/Med834.90.7186
5-Band Windward/Leeward Medium703.50.8529
5-Band Windward/Leeward Med/High635.60.9440
5-Band Windward/Leeward High611.60.9811
Windward/Leeward 60-40 Low1153.40.5202
Windward/Leeward 60-40 Low/Med847.40.7080
Windward/Leeward 60-40 Medium720.90.8323
Windward/Leeward 60-40 Med/High659.30.9101
Windward/Leeward 60-40 High640.70.9365
5-Band AP Low841.70.7129
5-Band AP Low/Med661.70.9067
5-Band AP Medium574.21.0449
5-Band AP Med/High528.91.1343
5-Band AP High509.51.1777
5-Band SF Bay Tour - Low987.40.6077
5-Band SF Bay Tour - Low/Med799.80.7502
5-Band SF Bay Tour - Medium681.30.8807
5-Band SF Bay Tour - Med/High622.30.9642
5-Band SF Bay Tour - High600.90.9984
Chicago-Mac Upwind0.8709
Chicago-Mac All Purpose0.9051
Chicago-Mac Downwind0.9353
Bayview-Mac Cove Island0.6575
Bayview-Mac Shore0.6619
Harvest Moon Regatta506.21.1852
Double HandedClub 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 L9.284LSM09.191Acc. length10.300Sink (kg/mm) 18.35
VCGD0.030VCGM0.061RM Rated (kg·m) 118.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared 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
Double HandedClub 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.