Club
Certificate
2023

Boat

Bertha

NOR 10494

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 Angles43.8°41.8°40.2°38.8°38.2°38.2°38.4°
Beat VMG3.294.014.544.895.055.125.16
52°5.055.996.586.927.107.197.25
60°5.336.246.777.087.287.387.48
75°5.506.416.927.237.467.657.86
90°5.386.336.977.327.517.758.15
110°5.346.467.107.507.858.148.55
120°5.186.317.027.457.828.198.87
135°4.675.806.667.187.577.958.75
150°3.915.015.976.727.197.558.26
Run VMG3.394.345.175.916.507.007.70
Gybe Angles145.1°149.6°151.4°157.3°168.2°177.2°179.0°

APH: 577.0

CDL: 8.810

GPH: 650.0

CertNo: 7823

BOAT
ClassDufour 34 StandardDesignerUmberto FeliciBuilderDufourAge date01/2003Series date01/2002Offset fileDUF34PERF.offData file7823
HULL
Length Overall10.300 mMaximum Beam3.482 mDraft1.927 mDisplacement5,231 kgDLR6.7353IMS DivisionCruiser/RacerDynamic Allowance0.290%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.340m
CREW
Maximum weight610 kgMinimum weight458 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail30.6831.24Headsail Luffed32.4832.48Headsail FlyingSymmetric78.3478.34Asymmetric
STORM SAIL AREAS (m²)
Trysail9.42Storm Jib8.19Heavy Weather Jib22.10
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  03440002NMQIssued on 05/06/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Bertha

NOR 10494

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 VMG1094.7898.3793.7736.4713.5702.7697.6
52°712.9601.5547.0520.0506.8501.0496.2
60°675.7577.2531.6508.1494.7487.6481.4
75°654.7562.1520.4498.0482.4470.6458.0
90°669.6568.3516.6491.9479.2464.3441.7
110°674.7557.4506.8479.8458.7442.0421.3
120°695.2570.6513.1483.4460.1439.7406.0
135°770.9621.2540.8501.4475.8453.1411.7
150°920.2718.0603.1535.8500.7476.7435.6
Run VMG1062.5829.0695.8609.5553.8514.3467.6
Selected Courses
Windward / Leeward1078.6863.7744.8672.9633.7608.5582.6
All purpose828.7677.4598.4554.3529.8513.0491.3
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward707.80.8476
All purpose577.01.0399
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7451
Downwind "popa"0.8875
70% up, 30% down "Ilhabela"0.7828
30% up, 70% down "Ilhabela-inverso"0.8394
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Predominantly Upwind622.90.9633
Predominantly Downwind588.71.0192
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low753.10.7967
Triple Number All Purpose Medium573.11.0469
Triple Number All Purpose High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Predominantly Upwind622.90.9633
Predominantly Downwind588.71.0192
Predominantly Upwind Low836.70.7171
Predominantly Upwind Medium640.50.9368
Predominantly Upwind High590.81.0155
Predominantly Downwind Low824.80.7275
Predominantly Downwind Medium583.61.0280
Predominantly Downwind High485.41.2361
Chicago-Mac Upwind0.9448
Chicago-Mac All Purpose0.9692
Chicago-Mac Downwind1.0006
Bayview-Mac Cove Island0.8968
Bayview-Mac Shore0.9067
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching550.41.0901
Predominantly Reaching Low682.50.8791
Predominantly Reaching Medium545.41.1000
Predominantly Reaching High479.51.2513
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1062.10.5649
5-Band Low / Medium884.00.6787
5-Band Medium688.90.8709
5-Band Medium / High613.80.9775
5-Band High587.11.0220
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance628.1
Triple Number Coastal/Long Distance Low753.1
Triple Number Coastal/Long Distance Medium573.1
Triple Number Coastal/Long Distance High509.0
Triple Number Windward/Leeward Low971.2
Triple Number Windward/Leeward Medium703.0
Triple Number Windward/Leeward High605.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7967
Triple Number Coastal/Long Distance Medium1.0469
Triple Number Coastal/Long Distance High1.1787
Triple Number Windward/Leeward Low0.6178
Triple Number Windward/Leeward Medium0.8535
Triple Number Windward/Leeward High0.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low753.1
Triple Number Coastal/Long Distance Medium573.1
Triple Number Coastal/Long Distance High509.0
Triple Number Windward/Leeward Low971.2
Triple Number Windward/Leeward Medium703.0
Triple Number Windward/Leeward High605.1
Predominantly Upwind622.9
Predominantly Downwind588.7
Predominantly Reaching564.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7967
Triple Number Coastal/Long Distance Medium1.0469
Triple Number Coastal/Long Distance High1.1787
Triple Number Windward/Leeward Low0.6178
Triple Number Windward/Leeward Medium0.8535
Triple Number Windward/Leeward High0.9916
Coastal/Long Distance0.9552
Predominantly Upwind0.9633
Predominantly Downwind1.0192
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7967
Tretall Distanseseilas Mellomvind1.0469
Tretall Distanseseilas Mye vind1.1787
Tretall Pølsebane Lite vind0.6178
Tretall Pølsebane Mellomvind0.8535
Tretall Pølsebane Mye vind0.9916
Distanseseilas ett tall (OSN 8-16kn)0.9552
Distanseseilas ett tall (APH 6-20kn)1.0399
Enkeltall Motvind0.9633
Enkeltall Medvind1.0192
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Coastal/Long Distance628.10.9552
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind622.90.9633
Predominantly Downwind588.71.0192
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore590.41.0163
Cape Doctor Coastal497.81.2052
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7967
Triple Number Coastal/Long Distance Medium1.0469
Triple Number Coastal/Long Distance High1.1787
Triple Number Windward/Leeward Low0.6178
Triple Number Windward/Leeward Medium0.8535
Triple Number Windward/Leeward High0.9916
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7967
Triple Number Coastal/Long Distance Medium1.0469
Triple Number Coastal/Long Distance High1.1787
Triple Number Windward/Leeward Low0.6178
Triple Number Windward/Leeward Medium0.8535
Triple Number Windward/Leeward High0.9916
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Predominantly Upwind622.90.9633
Predominantly Downwind588.71.0192
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance628.10.9552
Triple Number Coastal/Long Distance Low753.10.7967
Triple Number Coastal/Long Distance Medium573.11.0469
Triple Number Coastal/Long Distance High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.0812.7672.7590.6549.7518.6470.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low753.10.7967
Triple Number All Purpose Medium573.11.0469
Triple Number All Purpose High509.01.1787
Triple Number Windward/Leeward Low971.20.6178
Triple Number Windward/Leeward Medium703.00.8535
Triple Number Windward/Leeward High605.10.9916
Predominantly Upwind622.90.9633
Predominantly Downwind588.71.0192
Predominantly Upwind Low836.70.7171
Predominantly Upwind Medium640.50.9368
Predominantly Upwind High590.81.0155
Predominantly Downwind Low824.80.7275
Predominantly Downwind Medium583.61.0280
Predominantly Downwind High485.41.2361
Chicago-Mac Upwind0.9448
Chicago-Mac All Purpose0.9692
Chicago-Mac Downwind1.0006
Bayview-Mac Cove Island0.8968
Bayview-Mac Shore0.9067
Harvest Moon Regatta502.11.1950
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy594.61.0091
San Francisco Bay Medium697.80.8598
Predominantly Reaching550.41.0901
Predominantly Reaching Low682.50.8791
Predominantly Reaching Medium545.41.1000
Predominantly Reaching High479.51.2513
Windward/Leeward 60-40 Low976.20.6146
Windward/Leeward 60-40 Medium723.50.8293
Windward/Leeward 60-40 High638.60.9396
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1062.10.5649
5-Band Low / Medium884.00.6787
5-Band Medium688.90.8709
5-Band Medium / High613.80.9775
5-Band High587.11.0220
ORC Ref  03440002NMQIssued on 05/06/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Bertha

NOR 10494

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 34 StandardMeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.300Max. Beam3.482Draft1.927Displacement5,231Wetted area23.67IMS L9.397LSM09.191Acc. 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
PRD0.340PBWPIPA0.0032
EDL2.170ST10.048ST20.170
ST30.170ST40.098ST50.290
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P11.830IG12.760ISP12.900MDT10.110MDL10.190MDT20.000MDL20.000TL0.720MW0.190GO0.200
E4.550J3.740BAS1.570FSDFoilSFJ0.000SPL3.860WPLTPS0.000BDMWT0.00MCG0.000
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  03440002NMQIssued on 05/06/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Bertha

NOR 10494

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment312-2018011211000.140.851.572.763.7030.6812/01/2018
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment335-2016031408330.300.631.242.543.895.2112.54NoNo 32.4814/03/2016394-2023060214550.090.621.192.413.755.1812.29NoNo 30.7702/06/2023335-2017042610090.040.490.952.023.144.2812.05NoNo 24.9926/04/2017Genoa 2
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment335-20151109151812.6812.6812.687.507.0778.3409/11/2015312-20190430144512.6812.6812.687.507.0778.3430/04/2019
ORC Ref  03440002NMQIssued on 05/06/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org