Club
Certificate
Non Spinnaker
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 Angles44.1°42.0°40.6°39.4°38.7°38.4°39.3°
Beat VMG3.183.904.424.794.995.065.09
52°4.905.846.466.857.067.167.23
60°5.176.106.687.027.237.367.47
75°5.356.296.847.177.427.617.86
90°5.246.216.837.197.477.718.14
110°4.705.776.577.077.417.718.31
120°4.425.506.346.917.287.598.21
135°3.854.935.816.517.007.337.93
150°3.294.325.215.976.607.047.65
Run VMG2.853.764.585.346.026.607.34
Gybe Angles150.2°155.0°162.2°178.4°179.3°179.3°179.9°

APH: 609.3

CDL: 8.645

GPH: 691.9

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 Allowance0.270%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 FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail10.12Storm Jib8.53Heavy Weather Jib23.01
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  03440002LP6Issued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 VMG1130.4924.0815.4751.3721.9711.0707.7
52°735.4616.6557.0525.7510.0502.9497.8
60°696.2589.8539.2512.9497.8489.0482.2
75°673.4572.7526.3502.0485.4472.8458.2
90°687.4579.4526.9500.4482.2466.8442.5
110°766.6623.6548.0509.4486.0466.7433.3
120°815.2654.5567.4520.7494.3474.2438.5
135°934.5730.0619.4552.6514.6490.9453.7
150°1093.3833.4690.8602.5545.7511.7470.8
Run VMG1262.0958.4785.7674.7597.9545.4490.3
Selected Courses
Windward / Leeward1196.2941.2800.5713.0659.9628.2599.0
All purpose911.0732.6637.7582.3549.8530.0506.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward752.70.7972
All purpose609.30.9847
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7290
Downwind "popa"0.7903
70% up, 30% down "Ilhabela"0.7463
30% up, 70% down "Ilhabela-inverso"0.7709
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Predominantly Upwind646.50.9281
Predominantly Downwind639.20.9387
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low821.80.7301
Triple Number All Purpose Medium605.20.9914
Triple Number All Purpose High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Predominantly Upwind646.50.9281
Predominantly Downwind639.20.9387
Predominantly Upwind Low886.60.6767
Predominantly Upwind Medium655.50.9154
Predominantly Upwind High598.31.0029
Predominantly Downwind Low938.80.6391
Predominantly Downwind Medium642.20.9343
Predominantly Downwind High513.71.1680
Chicago-Mac Upwind0.9086
Chicago-Mac All Purpose0.9119
Chicago-Mac Downwind0.9181
Bayview-Mac Cove Island0.8415
Bayview-Mac Shore0.8596
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching579.91.0347
Predominantly Reaching Low747.20.8030
Predominantly Reaching Medium579.11.0361
Predominantly Reaching High496.51.2084
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1176.60.5100
5-Band Low / Medium965.20.6216
5-Band Medium730.60.8212
5-Band Medium / High635.80.9437
5-Band High604.00.9933
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance666.5
Triple Number Coastal/Long Distance Low821.8
Triple Number Coastal/Long Distance Medium605.2
Triple Number Coastal/Long Distance High526.1
Triple Number Windward/Leeward Low1068.8
Triple Number Windward/Leeward Medium747.9
Triple Number Windward/Leeward High625.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7301
Triple Number Coastal/Long Distance Medium0.9914
Triple Number Coastal/Long Distance High1.1404
Triple Number Windward/Leeward Low0.5614
Triple Number Windward/Leeward Medium0.8022
Triple Number Windward/Leeward High0.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low821.8
Triple Number Coastal/Long Distance Medium605.2
Triple Number Coastal/Long Distance High526.1
Triple Number Windward/Leeward Low1068.8
Triple Number Windward/Leeward Medium747.9
Triple Number Windward/Leeward High625.2
Predominantly Upwind646.5
Predominantly Downwind639.2
Predominantly Reaching602.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7301
Triple Number Coastal/Long Distance Medium0.9914
Triple Number Coastal/Long Distance High1.1404
Triple Number Windward/Leeward Low0.5614
Triple Number Windward/Leeward Medium0.8022
Triple Number Windward/Leeward High0.9597
Coastal/Long Distance0.9002
Predominantly Upwind0.9281
Predominantly Downwind0.9387
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7301
Tretall Distanseseilas Mellomvind0.9914
Tretall Distanseseilas Mye vind1.1404
Tretall Pølsebane Lite vind0.5614
Tretall Pølsebane Mellomvind0.8022
Tretall Pølsebane Mye vind0.9597
Distanseseilas ett tall (OSN 8-16kn)0.9002
Distanseseilas ett tall (APH 6-20kn)0.9847
Enkeltall Motvind0.9281
Enkeltall Medvind0.9387
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Coastal/Long Distance666.50.9002
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind646.50.9281
Predominantly Downwind639.20.9387
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore607.80.9872
Cape Doctor Coastal513.61.1683
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7301
Triple Number Coastal/Long Distance Medium0.9914
Triple Number Coastal/Long Distance High1.1404
Triple Number Windward/Leeward Low0.5614
Triple Number Windward/Leeward Medium0.8022
Triple Number Windward/Leeward High0.9597
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7301
Triple Number Coastal/Long Distance Medium0.9914
Triple Number Coastal/Long Distance High1.1404
Triple Number Windward/Leeward Low0.5614
Triple Number Windward/Leeward Medium0.8022
Triple Number Windward/Leeward High0.9597
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Predominantly Upwind646.50.9281
Predominantly Downwind639.20.9387
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.50.9002
Triple Number Coastal/Long Distance Low821.80.7301
Triple Number Coastal/Long Distance Medium605.20.9914
Triple Number Coastal/Long Distance High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1202.8885.8720.7622.0571.0536.2485.6
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low821.80.7301
Triple Number All Purpose Medium605.20.9914
Triple Number All Purpose High526.11.1404
Triple Number Windward/Leeward Low1068.80.5614
Triple Number Windward/Leeward Medium747.90.8022
Triple Number Windward/Leeward High625.20.9597
Predominantly Upwind646.50.9281
Predominantly Downwind639.20.9387
Predominantly Upwind Low886.60.6767
Predominantly Upwind Medium655.50.9154
Predominantly Upwind High598.31.0029
Predominantly Downwind Low938.80.6391
Predominantly Downwind Medium642.20.9343
Predominantly Downwind High513.71.1680
Chicago-Mac Upwind0.9086
Chicago-Mac All Purpose0.9119
Chicago-Mac Downwind0.9181
Bayview-Mac Cove Island0.8415
Bayview-Mac Shore0.8596
Harvest Moon Regatta527.11.1382
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy616.80.9727
San Francisco Bay Medium744.00.8064
Predominantly Reaching579.91.0347
Predominantly Reaching Low747.20.8030
Predominantly Reaching Medium579.11.0361
Predominantly Reaching High496.51.2084
Windward/Leeward 60-40 Low1060.40.5658
Windward/Leeward 60-40 Medium758.80.7907
Windward/Leeward 60-40 High654.90.9162
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1176.60.5100
5-Band Low / Medium965.20.6216
5-Band Medium730.60.8212
5-Band Medium / High635.80.9437
5-Band High604.00.9933
ORC Ref  03440002LP6Issued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 L9.389LSM09.191Acc. 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
E4.700J4.750BAS1.690FSDFoilSFJ0.000SPL4.942WPLTPS0.000BDMWT118.50MCG5.030
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  03440002LP6Issued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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.DateComment394-2020060308450.040.581.071.952.803.7512.27NoNo 23.6303/06/2020
ORC Ref  03440002LP6Issued on 15/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org