Club
Certificate
Non Spinnaker
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°41.2°39.6°38.8°38.2°38.2°39.0°
Beat VMG3.494.224.714.955.055.115.12
52°5.336.246.777.027.137.197.24
60°5.616.476.937.187.317.397.46
75°5.796.627.067.347.557.697.85
90°5.676.577.067.387.647.878.21
110°5.056.086.827.257.597.918.51
120°4.735.836.637.137.487.828.48
135°4.155.266.146.797.207.538.19
150°3.514.575.486.246.827.217.84
Run VMG3.043.964.785.526.206.757.46
Gybe Angles146.0°151.4°157.4°164.6°173.0°178.1°179.0°

APH: 586.5

CDL: 8.911

GPH: 660.7

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 Allowance0.140%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 FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail10.06Storm Jib8.54Heavy Weather Jib23.04
SAIL LIMITS
Headsails5  Spinnakers0 * Spinnaker pole aboard
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  03440002IF4Issued on 19/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 VMG1030.2854.0764.4727.5712.2704.9703.0
52°675.1576.6532.1513.0505.2500.8497.4
60°641.6556.5519.2501.1492.3487.3482.7
75°621.5544.2510.0490.5477.1468.2458.8
90°634.9547.9509.7488.1471.3457.5438.5
110°712.3591.8527.8496.2474.2454.9422.8
120°761.1617.8542.6504.9481.1460.6424.5
135°866.5685.0586.3530.5499.7477.9439.7
150°1025.2787.6657.3576.6527.9499.1459.1
Run VMG1183.8908.8753.2651.9580.7533.3482.7
Selected Courses
Windward / Leeward1107.0881.4758.8689.7646.4619.1592.9
All purpose842.5688.1607.5564.2538.4521.4500.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward723.00.8299
All purpose586.51.0230
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7642
Downwind "popa"0.8244
70% up, 30% down "Ilhabela"0.7813
30% up, 70% down "Ilhabela-inverso"0.8054
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Predominantly Upwind621.00.9662
Predominantly Downwind612.90.9790
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low765.30.7840
Triple Number All Purpose Medium582.51.0300
Triple Number All Purpose High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Predominantly Upwind621.00.9662
Predominantly Downwind612.90.9790
Predominantly Upwind Low819.80.7319
Predominantly Upwind Medium630.30.9519
Predominantly Upwind High592.71.0124
Predominantly Downwind Low878.40.6831
Predominantly Downwind Medium617.20.9721
Predominantly Downwind High502.31.1944
Chicago-Mac Upwind0.9494
Chicago-Mac All Purpose0.9529
Chicago-Mac Downwind0.9590
Bayview-Mac Cove Island0.8889
Bayview-Mac Shore0.9066
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching557.81.0757
Predominantly Reaching Low696.40.8616
Predominantly Reaching Medium555.81.0796
Predominantly Reaching High487.41.2310
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1089.70.5506
5-Band Low / Medium903.80.6639
5-Band Medium704.00.8523
5-Band Medium / High625.20.9596
5-Band High597.41.0043
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance640.6
Triple Number Coastal/Long Distance Low765.3
Triple Number Coastal/Long Distance Medium582.5
Triple Number Coastal/Long Distance High517.6
Triple Number Windward/Leeward Low994.2
Triple Number Windward/Leeward Medium717.9
Triple Number Windward/Leeward High616.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7840
Triple Number Coastal/Long Distance Medium1.0300
Triple Number Coastal/Long Distance High1.1591
Triple Number Windward/Leeward Low0.6035
Triple Number Windward/Leeward Medium0.8358
Triple Number Windward/Leeward High0.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low765.3
Triple Number Coastal/Long Distance Medium582.5
Triple Number Coastal/Long Distance High517.6
Triple Number Windward/Leeward Low994.2
Triple Number Windward/Leeward Medium717.9
Triple Number Windward/Leeward High616.1
Predominantly Upwind621.0
Predominantly Downwind612.9
Predominantly Reaching578.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7840
Triple Number Coastal/Long Distance Medium1.0300
Triple Number Coastal/Long Distance High1.1591
Triple Number Windward/Leeward Low0.6035
Triple Number Windward/Leeward Medium0.8358
Triple Number Windward/Leeward High0.9739
Coastal/Long Distance0.9366
Predominantly Upwind0.9662
Predominantly Downwind0.9790
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7840
Tretall Distanseseilas Mellomvind1.0300
Tretall Distanseseilas Mye vind1.1591
Tretall Pølsebane Lite vind0.6035
Tretall Pølsebane Mellomvind0.8358
Tretall Pølsebane Mye vind0.9739
Distanseseilas ett tall (OSN 8-16kn)0.9366
Distanseseilas ett tall (APH 6-20kn)1.0230
Enkeltall Motvind0.9662
Enkeltall Medvind0.9790
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Coastal/Long Distance640.60.9366
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind621.00.9662
Predominantly Downwind612.90.9790
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore600.70.9988
Cape Doctor Coastal506.51.1846
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7840
Triple Number Coastal/Long Distance Medium1.0300
Triple Number Coastal/Long Distance High1.1591
Triple Number Windward/Leeward Low0.6035
Triple Number Windward/Leeward Medium0.8358
Triple Number Windward/Leeward High0.9739
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7840
Triple Number Coastal/Long Distance Medium1.0300
Triple Number Coastal/Long Distance High1.1591
Triple Number Windward/Leeward Low0.6035
Triple Number Windward/Leeward Medium0.8358
Triple Number Windward/Leeward High0.9739
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Predominantly Upwind621.00.9662
Predominantly Downwind612.90.9790
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance640.60.9366
Triple Number Coastal/Long Distance Low765.30.7840
Triple Number Coastal/Long Distance Medium582.51.0300
Triple Number Coastal/Long Distance High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1114.7830.6684.8602.3559.1527.4479.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low765.30.7840
Triple Number All Purpose Medium582.51.0300
Triple Number All Purpose High517.61.1591
Triple Number Windward/Leeward Low994.20.6035
Triple Number Windward/Leeward Medium717.90.8358
Triple Number Windward/Leeward High616.10.9739
Predominantly Upwind621.00.9662
Predominantly Downwind612.90.9790
Predominantly Upwind Low819.80.7319
Predominantly Upwind Medium630.30.9519
Predominantly Upwind High592.71.0124
Predominantly Downwind Low878.40.6831
Predominantly Downwind Medium617.20.9721
Predominantly Downwind High502.31.1944
Chicago-Mac Upwind0.9494
Chicago-Mac All Purpose0.9529
Chicago-Mac Downwind0.9590
Bayview-Mac Cove Island0.8889
Bayview-Mac Shore0.9066
Harvest Moon Regatta511.11.1738
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy606.80.9889
San Francisco Bay Medium711.00.8439
Predominantly Reaching557.81.0757
Predominantly Reaching Low696.40.8616
Predominantly Reaching Medium555.81.0796
Predominantly Reaching High487.41.2310
Windward/Leeward 60-40 Low983.80.6099
Windward/Leeward 60-40 Medium727.70.8245
Windward/Leeward 60-40 High646.70.9278
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1089.70.5506
5-Band Low / Medium903.80.6639
5-Band Medium704.00.8523
5-Band Medium / High625.20.9596
5-Band High597.41.0043
ORC Ref  03440002IF4Issued on 19/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 L9.398LSM09.195Acc. 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  03440002IF4Issued on 19/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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
ORC Ref  03440002IF4Issued on 19/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org