Club
Certificate
Double Handed
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 Angles43.6°41.4°40.6°40.2°40.0°40.2°41.1°
Beat VMG3.203.894.374.634.724.764.71
52°4.895.806.416.746.876.936.95
60°5.156.056.636.957.117.187.22
75°5.346.256.817.147.357.507.64
90°5.266.306.917.177.447.678.01
110°5.386.477.107.497.808.008.31
120°5.246.357.047.477.848.198.68
135°4.735.876.707.227.638.028.85
150°3.975.086.036.777.247.628.39
Run VMG3.444.405.235.966.557.057.78
Gybe Angles144.8°149.6°152.0°157.7°168.2°177.2°178.1°

APH: 587.8

CDL: 8.313

GPH: 660.7

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 weight170 kgMinimum 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
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  03440002KVUIssued on 08/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 VMG1124.8925.3824.5777.7762.3756.7764.5
52°736.8620.6561.4534.4523.8519.1518.0
60°698.9594.7542.6518.1506.6501.6498.5
75°673.8576.4528.8504.3489.7479.9471.0
90°684.1571.0520.7501.9483.7469.3449.3
110°668.8556.2506.7480.5461.4450.2433.4
120°686.8566.8511.5482.0459.0439.5414.5
135°761.1613.6537.0498.4472.1448.7406.8
150°907.2709.0596.6531.6497.1472.3429.2
Run VMG1047.5818.6688.0604.0549.5510.8462.9
Selected Courses
Windward / Leeward1086.2872.0756.2690.8655.9633.8613.7
All purpose836.6684.2606.1565.2542.5527.8510.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward725.20.8273
All purpose587.81.0207
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7076
Downwind "popa"0.8972
70% up, 30% down "Ilhabela"0.7555
30% up, 70% down "Ilhabela-inverso"0.8304
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Predominantly Upwind641.10.9359
Predominantly Downwind590.91.0155
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low760.50.7890
Triple Number All Purpose Medium583.11.0290
Triple Number All Purpose High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Predominantly Upwind641.10.9359
Predominantly Downwind590.91.0155
Predominantly Upwind Low853.70.7029
Predominantly Upwind Medium664.30.9031
Predominantly Upwind High625.20.9597
Predominantly Downwind Low822.80.7292
Predominantly Downwind Medium581.71.0315
Predominantly Downwind High485.11.2368
Chicago-Mac Upwind0.9183
Chicago-Mac All Purpose0.9542
Chicago-Mac Downwind0.9973
Bayview-Mac Cove Island0.8847
Bayview-Mac Shore0.8911
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching557.51.0763
Predominantly Reaching Low687.40.8729
Predominantly Reaching Medium550.31.0903
Predominantly Reaching High486.31.2338
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1069.70.5609
5-Band Low / Medium893.40.6716
5-Band Medium706.20.8496
5-Band Medium / High638.90.9390
5-Band High617.20.9721
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance639.8
Triple Number Coastal/Long Distance Low760.5
Triple Number Coastal/Long Distance Medium583.1
Triple Number Coastal/Long Distance High525.0
Triple Number Windward/Leeward Low979.1
Triple Number Windward/Leeward Medium719.0
Triple Number Windward/Leeward High631.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7890
Triple Number Coastal/Long Distance Medium1.0290
Triple Number Coastal/Long Distance High1.1429
Triple Number Windward/Leeward Low0.6128
Triple Number Windward/Leeward Medium0.8345
Triple Number Windward/Leeward High0.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low760.5
Triple Number Coastal/Long Distance Medium583.1
Triple Number Coastal/Long Distance High525.0
Triple Number Windward/Leeward Low979.1
Triple Number Windward/Leeward Medium719.0
Triple Number Windward/Leeward High631.8
Predominantly Upwind641.1
Predominantly Downwind590.9
Predominantly Reaching569.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7890
Triple Number Coastal/Long Distance Medium1.0290
Triple Number Coastal/Long Distance High1.1429
Triple Number Windward/Leeward Low0.6128
Triple Number Windward/Leeward Medium0.8345
Triple Number Windward/Leeward High0.9497
Coastal/Long Distance0.9378
Predominantly Upwind0.9359
Predominantly Downwind1.0155
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7890
Tretall Distanseseilas Mellomvind1.0290
Tretall Distanseseilas Mye vind1.1429
Tretall Pølsebane Lite vind0.6128
Tretall Pølsebane Mellomvind0.8345
Tretall Pølsebane Mye vind0.9497
Distanseseilas ett tall (OSN 8-16kn)0.9378
Distanseseilas ett tall (APH 6-20kn)1.0207
Enkeltall Motvind0.9359
Enkeltall Medvind1.0155
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Coastal/Long Distance639.80.9378
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind641.10.9359
Predominantly Downwind590.91.0155
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore619.70.9682
Cape Doctor Coastal515.71.1635
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7890
Triple Number Coastal/Long Distance Medium1.0290
Triple Number Coastal/Long Distance High1.1429
Triple Number Windward/Leeward Low0.6128
Triple Number Windward/Leeward Medium0.8345
Triple Number Windward/Leeward High0.9497
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7890
Triple Number Coastal/Long Distance Medium1.0290
Triple Number Coastal/Long Distance High1.1429
Triple Number Windward/Leeward Low0.6128
Triple Number Windward/Leeward Medium0.8345
Triple Number Windward/Leeward High0.9497
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Predominantly Upwind641.10.9359
Predominantly Downwind590.91.0155
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance639.80.9378
Triple Number Coastal/Long Distance Low760.50.7890
Triple Number Coastal/Long Distance Medium583.11.0290
Triple Number Coastal/Long Distance High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1082.3819.6681.9603.8563.3531.9483.8
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low760.50.7890
Triple Number All Purpose Medium583.11.0290
Triple Number All Purpose High525.01.1429
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High631.80.9497
Predominantly Upwind641.10.9359
Predominantly Downwind590.91.0155
Predominantly Upwind Low853.70.7029
Predominantly Upwind Medium664.30.9031
Predominantly Upwind High625.20.9597
Predominantly Downwind Low822.80.7292
Predominantly Downwind Medium581.71.0315
Predominantly Downwind High485.11.2368
Chicago-Mac Upwind0.9183
Chicago-Mac All Purpose0.9542
Chicago-Mac Downwind0.9973
Bayview-Mac Cove Island0.8847
Bayview-Mac Shore0.8911
Harvest Moon Regatta505.91.1859
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy620.90.9663
San Francisco Bay Medium713.70.8406
Predominantly Reaching557.51.0763
Predominantly Reaching Low687.40.8729
Predominantly Reaching Medium550.31.0903
Predominantly Reaching High486.31.2338
Windward/Leeward 60-40 Low988.30.6071
Windward/Leeward 60-40 Medium747.10.8031
Windward/Leeward 60-40 High675.80.8879
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1069.70.5609
5-Band Low / Medium893.40.6716
5-Band Medium706.20.8496
5-Band Medium / High638.90.9390
5-Band High617.20.9721
ORC Ref  03440002KVUIssued on 08/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 L9.252LSM09.191Acc. 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  03440002KVUIssued on 08/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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  03440002KVUIssued on 08/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org