Club
Certificate
2023

Boat

Marathi

NOR 10542

Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles44.2°42.0°40.6°39.4°38.7°38.4°39.3°
Beat VMG3.183.884.404.784.985.055.07
52°4.885.836.456.837.047.147.22
60°5.166.096.667.017.227.357.45
75°5.336.276.837.167.417.607.84
90°5.296.366.997.337.517.698.11
110°5.376.497.127.527.868.168.55
120°5.216.347.037.467.848.208.88
135°4.695.826.677.197.587.968.77
150°3.945.045.996.747.207.578.28
Run VMG3.414.365.195.926.527.027.72
Gybe Angles145.1°149.6°152.0°157.7°168.2°177.2°179.0°

APH: 581.8

CDL: 8.628

GPH: 656.3

CertNo: 7906

BOAT
ClassDufour 34 StandardDesignerUmberto FeliciBuilderDufourAge 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 kgMinimum weight458 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
Headsails5  Spinnakers4
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.
ORC Ref  03440002KUQIssued on 08/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Marathi

NOR 10542

Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1133.7926.7817.6753.2723.6712.7709.6
52°737.1618.0558.2526.8511.0503.9498.9
60°697.8591.2540.2513.8498.6489.8483.3
75°675.1573.9527.2502.7486.2473.6459.0
90°680.1566.3515.1491.2479.3467.9443.8
110°670.6555.0505.6478.8457.8441.3421.2
120°691.2568.1511.8482.4459.2438.8405.3
135°767.1618.4539.3500.4474.9452.2410.6
150°914.7714.4600.9534.5499.8475.9434.6
Run VMG1056.2825.0693.0607.7552.2513.0466.5
Selected Courses
Windward / Leeward1095.0875.8755.3680.4637.9612.8588.0
All purpose841.0685.1604.6558.5532.4515.7494.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward715.80.8382
All purpose581.81.0313
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7270
Downwind "popa"0.8911
70% up, 30% down "Ilhabela"0.7695
30% up, 70% down "Ilhabela-inverso"0.8346
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Predominantly Upwind631.40.9502
Predominantly Downwind590.11.0168
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low763.10.7863
Triple Number All Purpose Medium577.91.0382
Triple Number All Purpose High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Predominantly Upwind631.40.9502
Predominantly Downwind590.11.0168
Predominantly Upwind Low856.40.7006
Predominantly Upwind Medium652.00.9202
Predominantly Upwind High597.31.0046
Predominantly Downwind Low827.50.7251
Predominantly Downwind Medium582.81.0296
Predominantly Downwind High485.21.2366
Chicago-Mac Upwind0.9306
Chicago-Mac All Purpose0.9606
Chicago-Mac Downwind0.9980
Bayview-Mac Cove Island0.8865
Bayview-Mac Shore0.8943
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching552.91.0853
Predominantly Reaching Low688.10.8720
Predominantly Reaching Medium547.31.0964
Predominantly Reaching High481.01.2473
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1078.10.5565
5-Band Low / Medium896.60.6692
5-Band Medium696.50.8615
5-Band Medium / High618.60.9700
5-Band High592.31.0130
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance633.9
Triple Number Coastal/Long Distance Low763.1
Triple Number Coastal/Long Distance Medium577.9
Triple Number Coastal/Long Distance High511.8
Triple Number Windward/Leeward Low985.4
Triple Number Windward/Leeward Medium711.1
Triple Number Windward/Leeward High609.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7863
Triple Number Coastal/Long Distance Medium1.0382
Triple Number Coastal/Long Distance High1.1723
Triple Number Windward/Leeward Low0.6089
Triple Number Windward/Leeward Medium0.8438
Triple Number Windward/Leeward High0.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low763.1
Triple Number Coastal/Long Distance Medium577.9
Triple Number Coastal/Long Distance High511.8
Triple Number Windward/Leeward Low985.4
Triple Number Windward/Leeward Medium711.1
Triple Number Windward/Leeward High609.8
Predominantly Upwind631.4
Predominantly Downwind590.1
Predominantly Reaching566.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7863
Triple Number Coastal/Long Distance Medium1.0382
Triple Number Coastal/Long Distance High1.1723
Triple Number Windward/Leeward Low0.6089
Triple Number Windward/Leeward Medium0.8438
Triple Number Windward/Leeward High0.9839
Coastal/Long Distance0.9466
Predominantly Upwind0.9502
Predominantly Downwind1.0168
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7863
Tretall Distanseseilas Mellomvind1.0382
Tretall Distanseseilas Mye vind1.1723
Tretall Pølsebane Lite vind0.6089
Tretall Pølsebane Mellomvind0.8438
Tretall Pølsebane Mye vind0.9839
Distanseseilas ett tall (OSN 8-16kn)0.9466
Distanseseilas ett tall (APH 6-20kn)1.0313
Enkeltall Motvind0.9502
Enkeltall Medvind1.0168
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Coastal/Long Distance633.90.9466
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind631.40.9502
Predominantly Downwind590.11.0168
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore595.51.0076
Cape Doctor Coastal500.71.1984
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7863
Triple Number Coastal/Long Distance Medium1.0382
Triple Number Coastal/Long Distance High1.1723
Triple Number Windward/Leeward Low0.6089
Triple Number Windward/Leeward Medium0.8438
Triple Number Windward/Leeward High0.9839
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7863
Triple Number Coastal/Long Distance Medium1.0382
Triple Number Coastal/Long Distance High1.1723
Triple Number Windward/Leeward Low0.6089
Triple Number Windward/Leeward Medium0.8438
Triple Number Windward/Leeward High0.9839
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Predominantly Upwind631.40.9502
Predominantly Downwind590.11.0168
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.90.9466
Triple Number Coastal/Long Distance Low763.10.7863
Triple Number Coastal/Long Distance Medium577.91.0382
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1091.1822.7680.7595.8552.4521.1472.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low763.10.7863
Triple Number All Purpose Medium577.91.0382
Triple Number All Purpose High511.81.1723
Triple Number Windward/Leeward Low985.40.6089
Triple Number Windward/Leeward Medium711.10.8438
Triple Number Windward/Leeward High609.80.9839
Predominantly Upwind631.40.9502
Predominantly Downwind590.11.0168
Predominantly Upwind Low856.40.7006
Predominantly Upwind Medium652.00.9202
Predominantly Upwind High597.31.0046
Predominantly Downwind Low827.50.7251
Predominantly Downwind Medium582.81.0296
Predominantly Downwind High485.21.2366
Chicago-Mac Upwind0.9306
Chicago-Mac All Purpose0.9606
Chicago-Mac Downwind0.9980
Bayview-Mac Cove Island0.8865
Bayview-Mac Shore0.8943
Harvest Moon Regatta503.71.1911
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy599.71.0005
San Francisco Bay Medium706.70.8491
Predominantly Reaching552.91.0853
Predominantly Reaching Low688.10.8720
Predominantly Reaching Medium547.31.0964
Predominantly Reaching High481.01.2473
Windward/Leeward 60-40 Low994.30.6034
Windward/Leeward 60-40 Medium735.10.8162
Windward/Leeward 60-40 High645.30.9298
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1078.10.5565
5-Band Low / Medium896.60.6692
5-Band Medium696.50.8615
5-Band Medium / High618.60.9700
5-Band High592.31.0130
ORC Ref  03440002KUQIssued on 08/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Marathi

NOR 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 L9.394LSM09.191Acc. length10.300Sink (kg/mm) 18.35
VCGD0.030VCGM0.061RM Rated (kg·m) 118.7Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0031
EDL2.170ST10.048ST20.170
ST30.170ST40.098ST50.285
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P11.830IG12.790ISP12.940MDT10.120MDL10.180MDT20.120MDL20.180TL0.720MW0.180GO0.200
E4.500J3.740BAS1.680FSDFoilSFJ0.000SPL3.860WPLTPS0.000BDMWT118.50MCG5.030
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.030Flotation Date01/01/2015MeasurerComment
SFFP0.390FFMFF1.324LCFcl5.792SG1.0130
SAFP9.636FAMFA1.033LCFsh6.039HBI1.141
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002KUQIssued on 08/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Marathi

NOR 10542

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment990-2014021218500.160.921.692.913.7931.7012/02/2014
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment990-2021020110570.060.641.172.173.134.0412.22NoNo 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
ORC Ref  03440002KUQIssued on 08/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org