Club
Certificate
Double Handed
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°44.1°40.6°40.0°40.0°40.2°41.1°
Beat VMG3.263.904.384.644.734.774.72
52°5.126.016.426.756.886.956.97
60°5.516.376.756.967.127.197.24
75°5.896.717.107.297.407.517.66
90°5.976.817.257.547.757.888.10
110°5.656.617.187.567.878.188.69
120°5.376.487.137.567.938.278.96
135°4.876.006.797.297.708.118.98
150°4.085.206.156.857.317.708.50
Run VMG3.544.515.346.046.637.127.86
Gybe Angles144.2°149.6°152.5°158.3°170.0°177.2°179.0°

APH: 578.9

CDL: 8.329

GPH: 647.6

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 weight170 kgMinimum weight120 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  03440002LOCIssued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 VMG1105.9923.2822.6776.0760.7755.1762.6
52°703.6599.2560.4533.5522.9518.1516.6
60°653.0564.9533.3517.2505.7500.7497.4
75°611.5536.7507.3494.1486.7479.2470.1
90°603.3528.9496.7477.6464.7456.6444.7
110°637.0544.8501.2475.9457.6440.3414.4
120°670.2555.9504.9476.1453.8435.3402.0
135°738.7599.6530.6493.8467.3443.9400.9
150°881.9691.9585.4525.2492.3467.5423.5
Run VMG1018.3799.0674.4595.6542.9505.8458.0
Selected Courses
Windward / Leeward1062.1861.1748.5685.8651.8630.5610.3
All purpose803.0666.4596.9558.7537.7523.4505.3
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward718.60.8350
All purpose578.91.0364
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7111
Downwind "popa"0.9142
70% up, 30% down "Ilhabela"0.7619
30% up, 70% down "Ilhabela-inverso"0.8421
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Predominantly Upwind632.10.9492
Predominantly Downwind579.51.0354
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low734.70.8167
Triple Number All Purpose Medium575.21.0432
Triple Number All Purpose High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Predominantly Upwind632.10.9492
Predominantly Downwind579.51.0354
Predominantly Upwind Low831.80.7213
Predominantly Upwind Medium659.30.9101
Predominantly Upwind High622.20.9644
Predominantly Downwind Low797.40.7525
Predominantly Downwind Medium571.61.0496
Predominantly Downwind High479.31.2519
Chicago-Mac Upwind0.9304
Chicago-Mac All Purpose0.9704
Chicago-Mac Downwind1.0167
Bayview-Mac Cove Island0.9081
Bayview-Mac Shore0.9114
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching542.61.1058
Predominantly Reaching Low653.40.9182
Predominantly Reaching Medium537.11.1171
Predominantly Reaching High479.71.2508
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1046.60.5733
5-Band Low / Medium880.00.6818
5-Band Medium700.60.8565
5-Band Medium / High635.30.9444
5-Band High613.80.9775
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance632.2
Triple Number Coastal/Long Distance Low734.7
Triple Number Coastal/Long Distance Medium575.2
Triple Number Coastal/Long Distance High520.2
Triple Number Windward/Leeward Low961.5
Triple Number Windward/Leeward Medium712.8
Triple Number Windward/Leeward High628.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8167
Triple Number Coastal/Long Distance Medium1.0432
Triple Number Coastal/Long Distance High1.1534
Triple Number Windward/Leeward Low0.6240
Triple Number Windward/Leeward Medium0.8417
Triple Number Windward/Leeward High0.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low734.7
Triple Number Coastal/Long Distance Medium575.2
Triple Number Coastal/Long Distance High520.2
Triple Number Windward/Leeward Low961.5
Triple Number Windward/Leeward Medium712.8
Triple Number Windward/Leeward High628.3
Predominantly Upwind632.1
Predominantly Downwind579.5
Predominantly Reaching554.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8167
Triple Number Coastal/Long Distance Medium1.0432
Triple Number Coastal/Long Distance High1.1534
Triple Number Windward/Leeward Low0.6240
Triple Number Windward/Leeward Medium0.8417
Triple Number Windward/Leeward High0.9550
Coastal/Long Distance0.9491
Predominantly Upwind0.9492
Predominantly Downwind1.0354
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8167
Tretall Distanseseilas Mellomvind1.0432
Tretall Distanseseilas Mye vind1.1534
Tretall Pølsebane Lite vind0.6240
Tretall Pølsebane Mellomvind0.8417
Tretall Pølsebane Mye vind0.9550
Distanseseilas ett tall (OSN 8-16kn)0.9491
Distanseseilas ett tall (APH 6-20kn)1.0364
Enkeltall Motvind0.9492
Enkeltall Medvind1.0354
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Coastal/Long Distance632.20.9491
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind632.10.9492
Predominantly Downwind579.51.0354
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore616.40.9735
Cape Doctor Coastal510.81.1747
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8167
Triple Number Coastal/Long Distance Medium1.0432
Triple Number Coastal/Long Distance High1.1534
Triple Number Windward/Leeward Low0.6240
Triple Number Windward/Leeward Medium0.8417
Triple Number Windward/Leeward High0.9550
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8167
Triple Number Coastal/Long Distance Medium1.0432
Triple Number Coastal/Long Distance High1.1534
Triple Number Windward/Leeward Low0.6240
Triple Number Windward/Leeward Medium0.8417
Triple Number Windward/Leeward High0.9550
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Predominantly Upwind632.10.9492
Predominantly Downwind579.51.0354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance632.20.9491
Triple Number Coastal/Long Distance Low734.70.8167
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1057.7806.0673.0597.7557.9527.4478.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low734.70.8167
Triple Number All Purpose Medium575.21.0432
Triple Number All Purpose High520.21.1534
Triple Number Windward/Leeward Low961.50.6240
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High628.30.9550
Predominantly Upwind632.10.9492
Predominantly Downwind579.51.0354
Predominantly Upwind Low831.80.7213
Predominantly Upwind Medium659.30.9101
Predominantly Upwind High622.20.9644
Predominantly Downwind Low797.40.7525
Predominantly Downwind Medium571.61.0496
Predominantly Downwind High479.31.2519
Chicago-Mac Upwind0.9304
Chicago-Mac All Purpose0.9704
Chicago-Mac Downwind1.0167
Bayview-Mac Cove Island0.9081
Bayview-Mac Shore0.9114
Harvest Moon Regatta495.91.2099
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy617.30.9719
San Francisco Bay Medium707.70.8478
Predominantly Reaching542.61.1058
Predominantly Reaching Low653.40.9182
Predominantly Reaching Medium537.11.1171
Predominantly Reaching High479.71.2508
Windward/Leeward 60-40 Low972.20.6172
Windward/Leeward 60-40 Medium742.50.8081
Windward/Leeward 60-40 High672.80.8917
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1046.60.5733
5-Band Low / Medium880.00.6818
5-Band Medium700.60.8565
5-Band Medium / High635.30.9444
5-Band High613.80.9775
ORC Ref  03440002LOCIssued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 L9.252LSM09.191Acc. 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  03440002LOCIssued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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  03440002LOCIssued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org