Club
Certificate
2023

Boat

Aurora

NOR 11885

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 Angles43.0°41.4°39.6°38.8°38.2°38.2°39.0°
Beat VMG3.494.214.714.955.055.115.12
52°5.336.246.767.027.137.197.24
60°5.616.476.937.187.317.397.46
75°5.796.617.067.347.557.697.85
90°5.676.577.067.377.647.878.21
110°5.486.587.187.577.918.208.56
120°5.316.447.107.527.908.278.93
135°4.795.926.757.257.648.038.86
150°4.025.136.086.817.267.638.37
Run VMG3.494.455.286.006.607.097.79
Gybe Angles144.8°149.6°152.3°158.6°170.0°177.2°179.0°

APH: 567.0

CDL: 8.912

GPH: 635.3

CertNo: 9356

BOAT
ClassDufour 34 PerformaDesignerUmberto FeliciBuilderDufour YachtsAge date01/2006Series date07/2003Offset fileDUF34PERF.offData file9356
HULL
Length Overall10.340 mMaximum Beam3.482 mDraft1.927 mDisplacement5,242 kgDLR6.7403IMS DivisionCruiser/RacerDynamic Allowance0.060%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight611 kgMinimum weight458 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail34.8835.83Headsail Luffed36.5036.50Headsail FlyingSymmetric79.9679.96Asymmetric
STORM SAIL AREAS (m²)
Trysail10.06Storm Jib8.54Heavy Weather Jib23.04
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  03440002ID0Issued on 19/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Aurora

NOR 11885

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 VMG1030.5854.3764.6727.6712.2704.8702.9
52°675.3576.7532.2513.0505.2500.8497.4
60°641.8556.6519.3501.2492.2487.3482.7
75°621.7544.2510.0490.6477.1468.2458.8
90°635.1548.0509.7488.1471.4457.6438.6
110°657.2547.2501.3475.3455.0439.1420.6
120°677.4559.4507.0478.6455.6435.5403.0
135°751.8607.7533.1496.4471.0448.1406.2
150°894.4701.1591.7528.9495.7471.9430.2
Run VMG1032.8809.6682.0599.9545.5508.0461.9
Selected Courses
Windward / Leeward1031.6831.9723.3663.8628.9606.4582.4
All purpose793.6654.7584.5547.6525.6510.5490.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward694.10.8644
All purpose567.01.0582
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7640
Downwind "popa"0.9052
70% up, 30% down "Ilhabela"0.8015
30% up, 70% down "Ilhabela-inverso"0.8577
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Predominantly Upwind610.40.9830
Predominantly Downwind577.91.0383
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low724.10.8286
Triple Number All Purpose Medium563.31.0651
Triple Number All Purpose High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Predominantly Upwind610.40.9830
Predominantly Downwind577.91.0383
Predominantly Upwind Low797.90.7520
Predominantly Upwind Medium627.70.9559
Predominantly Upwind High590.91.0154
Predominantly Downwind Low798.50.7514
Predominantly Downwind Medium574.51.0444
Predominantly Downwind High479.91.2502
Chicago-Mac Upwind0.9663
Chicago-Mac All Purpose0.9901
Chicago-Mac Downwind1.0200
Bayview-Mac Cove Island0.9239
Bayview-Mac Shore0.9337
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching540.61.1099
Predominantly Reaching Low657.60.9125
Predominantly Reaching Medium535.81.1198
Predominantly Reaching High475.41.2621
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1016.30.5904
5-Band Low / Medium851.90.7043
5-Band Medium677.00.8862
5-Band Medium / High611.00.9820
5-Band High586.61.0229
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance616.6
Triple Number Coastal/Long Distance Low724.1
Triple Number Coastal/Long Distance Medium563.3
Triple Number Coastal/Long Distance High506.8
Triple Number Windward/Leeward Low931.8
Triple Number Windward/Leeward Medium688.9
Triple Number Windward/Leeward High603.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8286
Triple Number Coastal/Long Distance Medium1.0651
Triple Number Coastal/Long Distance High1.1839
Triple Number Windward/Leeward Low0.6439
Triple Number Windward/Leeward Medium0.8709
Triple Number Windward/Leeward High0.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low724.1
Triple Number Coastal/Long Distance Medium563.3
Triple Number Coastal/Long Distance High506.8
Triple Number Windward/Leeward Low931.8
Triple Number Windward/Leeward Medium688.9
Triple Number Windward/Leeward High603.0
Predominantly Upwind610.4
Predominantly Downwind577.9
Predominantly Reaching554.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8286
Triple Number Coastal/Long Distance Medium1.0651
Triple Number Coastal/Long Distance High1.1839
Triple Number Windward/Leeward Low0.6439
Triple Number Windward/Leeward Medium0.8709
Triple Number Windward/Leeward High0.9950
Coastal/Long Distance0.9731
Predominantly Upwind0.9830
Predominantly Downwind1.0383
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8286
Tretall Distanseseilas Mellomvind1.0651
Tretall Distanseseilas Mye vind1.1839
Tretall Pølsebane Lite vind0.6439
Tretall Pølsebane Mellomvind0.8709
Tretall Pølsebane Mye vind0.9950
Distanseseilas ett tall (OSN 8-16kn)0.9731
Distanseseilas ett tall (APH 6-20kn)1.0582
Enkeltall Motvind0.9830
Enkeltall Medvind1.0383
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Coastal/Long Distance616.60.9731
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind610.40.9830
Predominantly Downwind577.91.0383
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore589.61.0176
Cape Doctor Coastal496.51.2084
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8286
Triple Number Coastal/Long Distance Medium1.0651
Triple Number Coastal/Long Distance High1.1839
Triple Number Windward/Leeward Low0.6439
Triple Number Windward/Leeward Medium0.8709
Triple Number Windward/Leeward High0.9950
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8286
Triple Number Coastal/Long Distance Medium1.0651
Triple Number Coastal/Long Distance High1.1839
Triple Number Windward/Leeward Low0.6439
Triple Number Windward/Leeward Medium0.8709
Triple Number Windward/Leeward High0.9950
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Predominantly Upwind610.40.9830
Predominantly Downwind577.91.0383
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance616.60.9731
Triple Number Coastal/Long Distance Low724.10.8286
Triple Number Coastal/Long Distance Medium563.31.0651
Triple Number Coastal/Long Distance High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1031.8783.8655.2583.4545.4515.8468.6
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low724.10.8286
Triple Number All Purpose Medium563.31.0651
Triple Number All Purpose High506.81.1839
Triple Number Windward/Leeward Low931.80.6439
Triple Number Windward/Leeward Medium688.90.8709
Triple Number Windward/Leeward High603.00.9950
Predominantly Upwind610.40.9830
Predominantly Downwind577.91.0383
Predominantly Upwind Low797.90.7520
Predominantly Upwind Medium627.70.9559
Predominantly Upwind High590.91.0154
Predominantly Downwind Low798.50.7514
Predominantly Downwind Medium574.51.0444
Predominantly Downwind High479.91.2502
Chicago-Mac Upwind0.9663
Chicago-Mac All Purpose0.9901
Chicago-Mac Downwind1.0200
Bayview-Mac Cove Island0.9239
Bayview-Mac Shore0.9337
Harvest Moon Regatta495.01.2122
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy592.71.0123
San Francisco Bay Medium682.60.8790
Predominantly Reaching540.61.1099
Predominantly Reaching Low657.60.9125
Predominantly Reaching Medium535.81.1198
Predominantly Reaching High475.41.2621
Windward/Leeward 60-40 Low933.90.6425
Windward/Leeward 60-40 Medium708.60.8467
Windward/Leeward 60-40 High638.10.9404
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1016.30.5904
5-Band Low / Medium851.90.7043
5-Band Medium677.00.8862
5-Band Medium / High611.00.9820
5-Band High586.61.0229
ORC Ref  03440002ID0Issued on 19/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Aurora

NOR 11885

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 34 PerformaMeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.340Max. Beam3.482Draft1.927Displacement5,242Wetted area23.69IMS L9.402LSM09.195Acc. length10.340Sink (kg/mm) 18.37
VCGD0.028VCGM0.058RM Rated (kg·m) 119.1Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0034
EDL2.170ST10.048ST20.170
ST30.170ST40.170ST50.285
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P12.300IG13.000ISP13.300MDT10.120MDL10.180MDT20.120MDL20.180TL0.000MW0.180GO0.198
E4.670J3.740BAS1.680FSDFoilSFJ0.000SPL3.880WPLTPS0.000BDMWT118.50MCG5.030
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.028Flotation Date01/01/2015MeasurerComment
SFFP0.390FFMFF1.324LCFcl5.794SG1.0130
SAFP9.636FAMFA1.032LCFsh6.041HBI1.140
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002ID0Issued on 19/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Aurora

NOR 11885

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment388-2007042509110.160.001.783.063.9934.8825/04/2007388-2009052811040.170.001.743.053.9934.7728/05/2009
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment388-2007050213350.000.000.000.000.005.5212.99NoNo 36.5025/04/2007441-2011050614100.000.000.000.000.005.4813.00NoNo 36.2606/05/2011388-2007042509240.000.000.000.000.005.2612.42NoNo 33.2525/04/2007SEIL: #2388-2007042509210.000.001.072.082.993.8713.05NoNo 26.3225/04/2007SEIL: #3
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment388-20090312164313.0013.0013.007.480.0079.9625/04/2007
ORC Ref  03440002ID0Issued on 19/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org