Club
Certificate
2023

Boat

Aurora

NOR 10963

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 Angles46.0°44.2°40.6°39.4°38.7°38.4°39.3°
Beat VMG3.233.944.414.794.995.065.09
52°5.096.076.616.857.067.167.23
60°5.516.436.897.107.237.367.47
75°5.906.747.167.417.577.677.86
90°5.986.827.277.597.868.068.29
110°5.616.607.207.607.958.248.82
120°5.346.477.137.567.938.298.97
135°4.845.966.767.267.658.058.89
150°4.055.166.116.827.277.648.39
Run VMG3.514.475.306.016.607.097.80
Gybe Angles144.2°149.6°152.3°157.9°170.0°177.2°179.0°

APH: 572.1

CDL: 8.647

GPH: 642.5

CertNo: 18534

BOAT
ClassDufour 34DesignerUmberto FelciBuilderDufour YachtsAge dateSeries date01/2003Offset fileDUF34PERF.offData file18534
HULL
Length Overall10.340 mMaximum Beam3.482 mDraft1.927 mDisplacement5,231 kgDLR6.7353IMS DivisionCruiser/RacerDynamic Allowance0.200%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight610 kgMinimum weight458 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail33.9834.75Headsail Luffed23.6323.63Headsail Flying54.9454.94Symmetric79.1079.10Asymmetric
STORM SAIL AREAS (m²)
Trysail10.12Storm Jib8.53Heavy Weather Jib23.01
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  03440002LNCIssued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Aurora

NOR 10963

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 VMG1114.0914.7815.5751.3721.8710.9707.4
52°707.3592.9544.6525.8510.0502.8497.7
60°653.5560.1522.2507.3497.8488.9482.2
75°609.7534.2502.6485.7475.7469.3458.2
90°602.4527.5495.2474.2458.0446.7434.1
110°641.2545.7499.9473.7453.0436.9408.0
120°674.2556.7505.1476.5453.8434.2401.2
135°744.3604.2532.7495.9470.4447.4404.8
150°889.2697.2589.5528.0495.1471.2429.3
Run VMG1026.7805.0679.3599.2545.6508.1461.8
Selected Courses
Windward / Leeward1070.4859.9747.4675.3633.7609.5584.6
All purpose807.6665.2594.0551.8526.4510.7489.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward708.50.8469
All purpose572.11.0488
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7323
Downwind "popa"0.9080
70% up, 30% down "Ilhabela"0.7774
30% up, 70% down "Ilhabela-inverso"0.8470
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Predominantly Upwind621.40.9655
Predominantly Downwind578.71.0369
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low736.40.8148
Triple Number All Purpose Medium569.01.0545
Triple Number All Purpose High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Predominantly Upwind621.40.9655
Predominantly Downwind578.71.0369
Predominantly Upwind Low832.40.7208
Predominantly Upwind Medium645.20.9300
Predominantly Upwind High593.31.0112
Predominantly Downwind Low801.60.7485
Predominantly Downwind Medium572.91.0473
Predominantly Downwind High478.61.2536
Chicago-Mac Upwind0.9453
Chicago-Mac All Purpose0.9784
Chicago-Mac Downwind1.0179
Bayview-Mac Cove Island0.9111
Bayview-Mac Shore0.9167
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching538.61.1141
Predominantly Reaching Low654.90.9162
Predominantly Reaching Medium534.21.1232
Predominantly Reaching High472.41.2700
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1054.20.5692
5-Band Low / Medium880.70.6813
5-Band Medium690.30.8692
5-Band Medium / High614.90.9758
5-Band High588.91.0189
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance624.8
Triple Number Coastal/Long Distance Low736.4
Triple Number Coastal/Long Distance Medium569.0
Triple Number Coastal/Long Distance High506.7
Triple Number Windward/Leeward Low965.1
Triple Number Windward/Leeward Medium704.3
Triple Number Windward/Leeward High606.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8148
Triple Number Coastal/Long Distance Medium1.0545
Triple Number Coastal/Long Distance High1.1841
Triple Number Windward/Leeward Low0.6217
Triple Number Windward/Leeward Medium0.8519
Triple Number Windward/Leeward High0.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low736.4
Triple Number Coastal/Long Distance Medium569.0
Triple Number Coastal/Long Distance High506.7
Triple Number Windward/Leeward Low965.1
Triple Number Windward/Leeward Medium704.3
Triple Number Windward/Leeward High606.2
Predominantly Upwind621.4
Predominantly Downwind578.7
Predominantly Reaching552.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8148
Triple Number Coastal/Long Distance Medium1.0545
Triple Number Coastal/Long Distance High1.1841
Triple Number Windward/Leeward Low0.6217
Triple Number Windward/Leeward Medium0.8519
Triple Number Windward/Leeward High0.9898
Coastal/Long Distance0.9603
Predominantly Upwind0.9655
Predominantly Downwind1.0369
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8148
Tretall Distanseseilas Mellomvind1.0545
Tretall Distanseseilas Mye vind1.1841
Tretall Pølsebane Lite vind0.6217
Tretall Pølsebane Mellomvind0.8519
Tretall Pølsebane Mye vind0.9898
Distanseseilas ett tall (OSN 8-16kn)0.9603
Distanseseilas ett tall (APH 6-20kn)1.0488
Enkeltall Motvind0.9655
Enkeltall Medvind1.0369
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Coastal/Long Distance624.80.9603
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind621.40.9655
Predominantly Downwind578.71.0369
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore592.11.0134
Cape Doctor Coastal495.91.2099
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8148
Triple Number Coastal/Long Distance Medium1.0545
Triple Number Coastal/Long Distance High1.1841
Triple Number Windward/Leeward Low0.6217
Triple Number Windward/Leeward Medium0.8519
Triple Number Windward/Leeward High0.9898
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8148
Triple Number Coastal/Long Distance Medium1.0545
Triple Number Coastal/Long Distance High1.1841
Triple Number Windward/Leeward Low0.6217
Triple Number Windward/Leeward Medium0.8519
Triple Number Windward/Leeward High0.9898
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Predominantly Upwind621.40.9655
Predominantly Downwind578.71.0369
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.80.9603
Triple Number Coastal/Long Distance Low736.40.8148
Triple Number Coastal/Long Distance Medium569.01.0545
Triple Number Coastal/Long Distance High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1066.0805.0671.1589.5546.7515.3467.5
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low736.40.8148
Triple Number All Purpose Medium569.01.0545
Triple Number All Purpose High506.71.1841
Triple Number Windward/Leeward Low965.10.6217
Triple Number Windward/Leeward Medium704.30.8519
Triple Number Windward/Leeward High606.20.9898
Predominantly Upwind621.40.9655
Predominantly Downwind578.71.0369
Predominantly Upwind Low832.40.7208
Predominantly Upwind Medium645.20.9300
Predominantly Upwind High593.31.0112
Predominantly Downwind Low801.60.7485
Predominantly Downwind Medium572.91.0473
Predominantly Downwind High478.61.2536
Chicago-Mac Upwind0.9453
Chicago-Mac All Purpose0.9784
Chicago-Mac Downwind1.0179
Bayview-Mac Cove Island0.9111
Bayview-Mac Shore0.9167
Harvest Moon Regatta493.11.2168
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy596.11.0065
San Francisco Bay Medium699.40.8579
Predominantly Reaching538.61.1141
Predominantly Reaching Low654.90.9162
Predominantly Reaching Medium534.21.1232
Predominantly Reaching High472.41.2700
Windward/Leeward 60-40 Low975.00.6154
Windward/Leeward 60-40 Medium729.70.8222
Windward/Leeward 60-40 High642.30.9342
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1054.20.5692
5-Band Low / Medium880.70.6813
5-Band Medium690.30.8692
5-Band Medium / High614.90.9758
5-Band High588.91.0189
ORC Ref  03440002LNCIssued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Aurora

NOR 10963

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 34MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.340Max. Beam3.482Draft1.927Displacement5,231Wetted area23.67IMS L9.393LSM09.191Acc. length10.340Sink (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
PRD0.380PBWPIPA0.0033
EDL2.170ST10.050ST20.170
ST30.170ST40.100ST50.290
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P12.300IG13.000ISP13.010MDT10.120MDL10.180MDT20.120MDL20.180TL0.720MW0.180GO0.200
E4.700J4.750BAS1.690FSDFoilSFJ0.000SPL4.942WPLTPS5.250BDMWT118.50MCG5.030
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.030Flotation Date01/01/2015MeasurerComment
SFFP0.390FFMFF1.324LCFcl5.792SG1.0130
SAFP9.636FAMFA1.033LCFsh6.039HBI1.115
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002LNCIssued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Aurora

NOR 10963

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment394-2020060308420.140.941.742.993.9033.9803/06/2020
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.361.442.524.685.927.1613.22NoYes054.9420/05/2021*Legacy Code 0: SLU=13.22 SLE=13.03 AMG=4.83 ASF=7.39394-2020060308450.040.581.071.952.803.7512.27NoNo 23.6303/06/2020
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment451-20210614190512.8212.8212.827.447.2679.1009/06/2021
ORC Ref  03440002LNCIssued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org