Club
Certificate
2022

Boat

Venus

NOR 13531

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 Angles44.4°42.9°42.4°41.8°40.0°39.6°39.4°
Beat VMG3.213.944.525.015.365.525.62
52°5.006.026.837.387.697.857.96
60°5.366.387.157.607.878.058.20
75°5.636.677.397.788.048.278.64
90°5.546.647.517.978.278.468.87
110°5.526.777.628.068.458.869.56
120°5.356.577.497.988.378.809.69
135°4.816.007.027.688.098.479.32
150°4.085.206.156.967.497.848.39
Run VMG3.534.515.336.036.496.877.79
Gybe Angles144.8°147.5°147.3°147.5°149.3°168.2°176.3°

APH: 552.2

CDL: 9.998

GPH: 626.1

CertNo: 10013

BOAT
ClassDufour 425DesignerUmberto FelciBuilderDufour YachtsAge date01/2008Series date01/2007Offset fileDUF425CL.OFFData file10013
HULL
Length Overall12.570 mMaximum Beam4.170 mDraft2.101 mDisplacement8,856 kgDLR6.1786IMS DivisionCruiser/RacerDynamic Allowance0.367%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.440m
CREW
Maximum weight817 kgMinimum weight613 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail38.9339.83Headsail Luffed46.8646.86Headsail FlyingSymmetricAsymmetric105.22105.22 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail11.26Storm Jib10.96Heavy Weather Jib29.58
SAIL LIMITS
Headsails6  Spinnakers4
STABILITY
Righting Moment273.1 kg·mStability 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  03440001T9HIssued on 29/03/2022Valid until 31/03/2023
VPP ver: 2022 1.01 | © ORC | www.orc.org

Club
Certificate
2022

Boat

Venus

NOR 13531

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 VMG1121.2912.6797.0718.2671.5652.1640.1
52°719.8597.5527.2487.8468.4458.6452.5
60°672.2564.3503.3473.4457.3447.1438.8
75°639.8539.9487.2462.7447.6435.2416.8
90°649.6541.9479.4451.8435.2425.4406.0
110°652.0531.8472.7446.4426.2406.4376.7
120°672.9548.0480.7451.0430.0409.3371.5
135°748.5599.7513.1468.6445.0425.0386.2
150°882.3692.0585.2517.2480.7459.1429.1
Run VMG1018.8799.1675.7597.2555.0523.7462.3
Selected Courses
Windward / Leeward1070.0855.9736.4657.7613.3587.9551.2
All purpose817.9663.8578.2528.1499.4481.2456.5
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward692.70.8662
All purpose552.21.0866
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.7619
Downwind "popa"0.9068
70% up, 30% down "Ilhabela"0.8002
30% up, 70% down "Ilhabela-inverso"0.8578
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Predominantly Upwind599.31.0011
Predominantly Downwind566.21.0597
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low740.80.8099
Triple Number All Purpose Medium548.91.0930
Triple Number All Purpose High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Predominantly Upwind599.31.0011
Predominantly Downwind566.21.0597
Predominantly Upwind Low838.00.7160
Predominantly Upwind Medium618.50.9701
Predominantly Upwind High546.71.0974
Predominantly Downwind Low802.90.7473
Predominantly Downwind Medium560.91.0698
Predominantly Downwind High469.21.2787
Chicago-Mac Upwind0.9780
Chicago-Mac All Purpose1.0060
Chicago-Mac Downwind1.0399
Bayview-Mac Cove Island0.9234
Bayview-Mac Shore0.9340
Victoria-Maui1.1063
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance605.4
Triple Number Coastal/Long Distance Low740.8
Triple Number Coastal/Long Distance Medium548.9
Triple Number Coastal/Long Distance High476.5
Triple Number Windward/Leeward Low962.9
Triple Number Windward/Leeward Medium689.3
Triple Number Windward/Leeward High580.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8099
Triple Number Coastal/Long Distance Medium1.0930
Triple Number Coastal/Long Distance High1.2592
Triple Number Windward/Leeward Low0.6231
Triple Number Windward/Leeward Medium0.8704
Triple Number Windward/Leeward High1.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low740.8
Triple Number Coastal/Long Distance Medium548.9
Triple Number Coastal/Long Distance High476.5
Triple Number Windward/Leeward Low962.9
Triple Number Windward/Leeward Medium689.3
Triple Number Windward/Leeward High580.5
Predominantly Upwind599.3
Predominantly Downwind566.2
Predominantly Reaching537.8
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8099
Triple Number Coastal/Long Distance Medium1.0930
Triple Number Coastal/Long Distance High1.2592
Triple Number Windward/Leeward Low0.6231
Triple Number Windward/Leeward Medium0.8704
Triple Number Windward/Leeward High1.0336
Coastal/Long Distance0.9911
Predominantly Upwind1.0011
Predominantly Downwind1.0597
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.9911
Tretall Distanseseilas Lite vind0.8099
Tretall Distanseseilas Mellomvind1.0930
Tretall Distanseseilas Mye vind1.2592
Tretall Pølsebane Lite vind0.6231
Tretall Pølsebane Mellomvind0.8704
Tretall Pølsebane Mye vind1.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Coastal/Long Distance605.40.9911
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind599.31.0011
Predominantly Downwind566.21.0597
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore562.21.0672
Cape Doctor Coastal463.91.2933
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8099
Triple Number Coastal/Long Distance Medium1.0930
Triple Number Coastal/Long Distance High1.2592
Triple Number Windward/Leeward Low0.6231
Triple Number Windward/Leeward Medium0.8704
Triple Number Windward/Leeward High1.0336
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8099
Triple Number Coastal/Long Distance Medium1.0930
Triple Number Coastal/Long Distance High1.2592
Triple Number Windward/Leeward Low0.6231
Triple Number Windward/Leeward Medium0.8704
Triple Number Windward/Leeward High1.0336
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Predominantly Upwind599.31.0011
Predominantly Downwind566.21.0597
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance605.40.9911
Triple Number Coastal/Long Distance Low740.80.8099
Triple Number Coastal/Long Distance Medium548.91.0930
Triple Number Coastal/Long Distance High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1064.9802.0657.7566.4519.0486.7436.9
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low740.80.8099
Triple Number All Purpose Medium548.91.0930
Triple Number All Purpose High476.51.2592
Triple Number Windward/Leeward Low962.90.6231
Triple Number Windward/Leeward Medium689.30.8704
Triple Number Windward/Leeward High580.51.0336
Predominantly Upwind599.31.0011
Predominantly Downwind566.21.0597
Predominantly Upwind Low838.00.7160
Predominantly Upwind Medium618.50.9701
Predominantly Upwind High546.71.0974
Predominantly Downwind Low802.90.7473
Predominantly Downwind Medium560.91.0698
Predominantly Downwind High469.21.2787
Chicago-Mac Upwind0.9780
Chicago-Mac All Purpose1.0060
Chicago-Mac Downwind1.0399
Bayview-Mac Cove Island0.9234
Bayview-Mac Shore0.9340
Harvest Moon Regatta478.71.2533
Victoria-Maui1.1063
5-Band
Windward/Leeward		Time On DistanceTime On Time
5-Band Low1053.50.5695
5-Band Low / Medium875.30.6855
5-Band Medium674.10.8900
5-Band Medium / High591.81.0139
5-Band High557.51.0762
ORC Ref  03440001T9HIssued on 29/03/2022Valid until 31/03/2023
VPP ver: 2022 1.01 | © ORC | www.orc.org

Club
Certificate
2022

Boat

Venus

NOR 13531

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 425MeasurementHINPlan reviewHull constructionCoredAramid Hull CoreNoCarbon RudderNoLight stanchionsNoTrim tabNo
LOA12.570Max. Beam4.170Draft2.101Displacement8,856Wetted area33.64IMS L11.350LSM011.274Acc. length12.600Sink (kg/mm) 26.66
VCGD0.000VCGM-0.046RM Measured (kg·m) 273.1RM Default (kg·m) 233.9Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.440PBWPIPA0.0037
EDL2.630ST10.048ST20.170
ST30.170ST40.170ST50.275
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2
P13.680IG14.800ISP14.800MDT10.150MDL10.250MDT20.000MDL20.000TL0.000MW0.000GO0.000
E4.700J4.700BAS1.750FSDFoilSFJ0.000SPL0.000WPLTPS4.980BDMWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyFlotation Date01/01/2015MeasurerComment
SFFP0.189FFMFF1.511LCFcl7.001SG1.0220
SAFP11.957FAMFA1.164LCFsh7.293HBI1.311
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440001T9HIssued on 29/03/2022Valid until 31/03/2023
VPP ver: 2022 1.01 | © ORC | www.orc.org

Club
Certificate
2022

Boat

Venus

NOR 13531

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateMakerMaterialComment388-2013011811000.010.001.833.123.9538.9318/01/2013398-2008041812000.040.001.462.713.7635.9518/04/2008
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialComment398-2008041812300.000.000.000.000.006.6013.95NoNo 46.8618/04/2008388-2013011811100.000.000.000.000.006.3814.04NoNo 45.5918/01/2013
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateMakerMaterialComment398-20080618100015.2513.8114.538.728.57102%105.2218/06/2008
ORC Ref  03440001T9HIssued on 29/03/2022Valid until 31/03/2023
VPP ver: 2022 1.01 | © ORC | www.orc.org