Club Certificate2025
TWIKIESP-46261_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles44.4°44.4°42.0°40.6°39.7°39.2°39.0°39.1°39.9°
Beat VMG2.613.604.384.915.185.315.375.425.36
52°4.125.556.567.187.487.607.677.757.76
60°4.425.876.857.417.707.827.908.008.03
75°4.646.117.057.587.898.098.228.408.51
90°4.546.027.007.607.988.218.458.768.99
110°4.225.827.027.728.168.558.909.379.74
120°4.075.636.847.608.078.488.899.7210.38
135°3.565.016.227.157.748.168.579.4510.62
150°2.924.205.356.337.127.668.048.749.53
Run VMG2.533.644.645.496.186.707.167.918.55
Gybe Angles142.4°142.4°147.1°149.0°151.1°155.6°161.5°175.0°174.5°
APH ToD:537.4CDL: 10.115APH ToT: 1.1165CertNo:4626101
BOAT
ClassDUFOUR 40 EDesignerFELCIBuilderDUFOURAge date02/2005Series date07/2004Offset fileDUFOUR40E.offData fileE46261_C
HULL
Length Overall11.990 mMaximum Beam3.878 mDraft2.123 mDisplacement8,365 kgDLR6.5273IMS DivisionCruiser/RacerDynamic Allowance0.180%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.300m
CREW
Maximum weight620 kg(declared)Minimum weight490 kg ✱ when appliedNon Manual PowerYesCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail48.6150.02Headsail Luffed47.9147.91Headsail FlyingSymmetricAsymmetric94.6494.64 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail13.86Storm Jib10.30Heavy Weather Jib27.80
SAIL LIMITS
Headsails6
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
MEDIDAS ESTIMADAS
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.
Club Certificate2025
TWIKIESP-46261_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1378.7998.9821.7733.4695.4678.4670.4664.4672.1
52°873.1648.6548.8501.4481.5473.7469.5464.5464.1
60°815.3612.9525.9485.8467.8460.3456.0450.1448.3
75°775.6588.8510.8475.0456.3444.8438.2428.6422.9
90°793.6598.1514.2473.5450.9438.4426.2410.8400.2
110°852.4618.9512.8466.1441.1421.1404.5384.1369.4
120°884.4639.2526.1473.5446.2424.6404.9370.3347.0
135°1010.4718.8578.6503.5465.1441.1420.0381.1338.9
150°1234.5857.3672.5568.3505.3470.0447.9411.7377.8
Run VMG1425.3989.9776.5656.2582.9537.0502.9454.9421.2
Selected Courses
Windward / Leeward1401.0994.4799.1694.8639.1607.7586.6559.7546.6
All purpose1050.8759.7623.5554.0518.1497.3482.6462.4449.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward668.50.8975
All purpose537.41.1165
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7981
Downwind "popa"0.9333
70% up, 30% down "Ilhabela"0.8343
30% up, 70% down "Ilhabela-inverso"0.8881
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Predominantly Upwind579.31.0358
Predominantly Downwind550.41.0902
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low691.60.8676
Triple Number AP Medium533.71.1242
Triple Number AP High478.71.2533
Triple Number Windward/Leeward Low936.90.6404
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Single Number Predominant Upwind602.50.9959
Single Number Predominant Reaching533.31.1251
Single Number Predominant Downwind575.11.0433
Predominant Upwind - Low827.70.7249
Predominant Upwind - Low/Med633.40.9472
Predominant Upwind - Medium560.41.0706
Predominant Upwind - Med/High526.31.1401
Predominant Upwind - High511.71.1725
Predominant Downwind Low844.40.7105
Predominant Downwind Low/Med623.20.9628
Predominant Downwind Medium530.51.1310
Predominant Downwind Med/High475.11.2628
Predominant Downwind High442.01.3575
Predominant Reaching Low739.70.8112
Predominant Reaching Low/Med566.21.0597
Predominant Reaching Medium497.91.2051
Predominant Reaching Med/High459.51.3059
Predominant Reaching High436.61.3741
SA/DSPL Upwind23.26SA/DSPL Downwind34.52
Scoring OptionTODTOT
5-Band Windward/Leeward Low1047.50.5728
5-Band Windward/Leeward Low/Med767.50.7818
5-Band Windward/Leeward Medium652.10.9202
5-Band Windward/Leeward Med/High590.11.0168
5-Band Windward/Leeward High562.11.0675
Windward/Leeward 60-40 Low1047.90.5726
Windward/Leeward 60-40 Low/Med773.60.7756
Windward/Leeward 60-40 Medium663.10.9048
Windward/Leeward 60-40 Med/High606.60.9891
Windward/Leeward 60-40 High583.01.0292
5-Band AP Low764.30.7850
5-Band AP Low/Med603.50.9942
5-Band AP Medium526.41.1399
5-Band AP Med/High484.71.2379
5-Band AP High463.61.2941
5-Band SF Bay Tour - Low900.70.6662
5-Band SF Bay Tour - Low/Med732.00.8197
5-Band SF Bay Tour - Medium627.20.9566
5-Band SF Bay Tour - Med/High572.71.0477
5-Band SF Bay Tour - High547.71.0955
Chicago-Mac Upwind0.9661
Chicago-Mac All Purpose0.9896
Chicago-Mac Downwind1.0054
Bayview-Mac Cove Island0.7223
Bayview-Mac Shore0.7285
Harvest Moon Regatta465.61.2887
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance586.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating586.71.0226
FinRating, kevyt tuuli1027.40.9733
FinRating, kova tuuli466.21.0725
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0226
Triple Number Coastal/Long Distance Low0.8676
Triple Number Coastal/Long Distance Medium1.1243
Triple Number Coastal/Long Distance High1.2533
Triple Number Windward/Leeward Low0.6691
Triple Number Windward/Leeward Medium0.9048
Triple Number Windward/Leeward High1.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
For information
General Purpose Handicap (GPH)603.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low691.6
Triple Number Coastal/Long Distance Medium533.7
Triple Number Coastal/Long Distance High478.7
Triple Number Windward/Leeward Low896.7
Triple Number Windward/Leeward Medium663.1
Triple Number Windward/Leeward High581.8
Predominantly Upwind579.3
Predominantly Downwind550.4
Predominantly Reaching523.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8676
Triple Number Coastal/Long Distance Medium1.1243
Triple Number Coastal/Long Distance High1.2533
Triple Number Windward/Leeward Low0.6691
Triple Number Windward/Leeward Medium0.9048
Triple Number Windward/Leeward High1.0313
Coastal/Long Distance1.0226
Predominantly Upwind1.0358
Predominantly Downwind1.0902
For information
General Purpose Handicap (GPH)603.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1165
Distanseseilas Trippeltall svak vind0.8676
Distanseseilas Trippeltall mellomvind1.1243
Distanseseilas Trippeltall sterk vind1.2533
Pølsebane Trippeltall svak vind0.6691
Pølsebane Trippeltall mellomvind0.9048
Pølsebane Trippeltall sterk vind1.0313
Motvind Singeltall1.0358
Medvind Singeltall1.0902
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Coastal/Long Distance586.71.0226
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind579.31.0358
Predominantly Downwind550.41.0902
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore550.51.0899
Cape Doctor Coastal453.21.3240
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8676
Triple Number Coastal/Long Distance Medium1.1243
Triple Number Coastal/Long Distance High1.2533
Triple Number Windward/Leeward Low0.6691
Triple Number Windward/Leeward Medium0.9048
Triple Number Windward/Leeward High1.0313
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8676
Triple Number Coastal/Long Distance Medium1.1243
Triple Number Coastal/Long Distance High1.2533
Triple Number Windward/Leeward Low0.6691
Triple Number Windward/Leeward Medium0.9048
Triple Number Windward/Leeward High1.0313
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Predominantly Upwind579.31.0358
Predominantly Downwind550.41.0902
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance586.71.0226
Triple Number Coastal/Long Distance Low691.60.8676
Triple Number Coastal/Long Distance Medium533.71.1243
Triple Number Coastal/Long Distance High478.71.2533
Triple Number Windward/Leeward Low896.70.6691
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1493.6994.0751.2625.4554.0516.9487.7440.3426.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low691.60.8676
Triple Number AP Medium533.71.1242
Triple Number AP High478.71.2533
Triple Number Windward/Leeward Low936.90.6404
Triple Number Windward/Leeward Medium663.10.9048
Triple Number Windward/Leeward High581.81.0313
Single Number Predominant Upwind602.50.9959
Single Number Predominant Reaching533.31.1251
Single Number Predominant Downwind575.11.0433
Predominant Upwind - Low827.70.7249
Predominant Upwind - Low/Med633.40.9472
Predominant Upwind - Medium560.41.0706
Predominant Upwind - Med/High526.31.1401
Predominant Upwind - High511.71.1725
Predominant Downwind Low844.40.7105
Predominant Downwind Low/Med623.20.9628
Predominant Downwind Medium530.51.1310
Predominant Downwind Med/High475.11.2628
Predominant Downwind High442.01.3575
Predominant Reaching Low739.70.8112
Predominant Reaching Low/Med566.21.0597
Predominant Reaching Medium497.91.2051
Predominant Reaching Med/High459.51.3059
Predominant Reaching High436.61.3741
SA/DSPL Upwind23.26SA/DSPL Downwind34.52
Scoring OptionTODTOT
5-Band Windward/Leeward Low1047.50.5728
5-Band Windward/Leeward Low/Med767.50.7818
5-Band Windward/Leeward Medium652.10.9202
5-Band Windward/Leeward Med/High590.11.0168
5-Band Windward/Leeward High562.11.0675
Windward/Leeward 60-40 Low1047.90.5726
Windward/Leeward 60-40 Low/Med773.60.7756
Windward/Leeward 60-40 Medium663.10.9048
Windward/Leeward 60-40 Med/High606.60.9891
Windward/Leeward 60-40 High583.01.0292
5-Band AP Low764.30.7850
5-Band AP Low/Med603.50.9942
5-Band AP Medium526.41.1399
5-Band AP Med/High484.71.2379
5-Band AP High463.61.2941
5-Band SF Bay Tour - Low900.70.6662
5-Band SF Bay Tour - Low/Med732.00.8197
5-Band SF Bay Tour - Medium627.20.9566
5-Band SF Bay Tour - Med/High572.71.0477
5-Band SF Bay Tour - High547.71.0955
Chicago-Mac Upwind0.9661
Chicago-Mac All Purpose0.9896
Chicago-Mac Downwind1.0054
Bayview-Mac Cove Island0.7223
Bayview-Mac Shore0.7285
Harvest Moon Regatta465.61.2887
Club Certificate2025
TWIKIESP-46261_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 40 EMeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA11.990Max. Beam3.878Draft2.123Displacement8,365Wetted area32.04IMS L11.008LSM010.861Acc. length12.013Sink (kg/mm) 24.19
VCGD0.003VCGM0.059RM Rated (kg·m) 198.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight774Declared crew weight620
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.300PBWPIPA0.0040
EDL2.700ST10.065ST20.180
ST30.180ST40.110ST50.290
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P14.400IG14.350ISP15.000MDT10.100MDL10.110MDT2MDL2TLMWGO
E5.500J4.160BAS1.830FSD0.040SFJ0.345SPLWPLTPS4.800BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered200.0Flotation Date01/01/2010
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
TWIKIESP-46261_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment148.6119/04/2005
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment16.30NoNo 47.91
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment114.79NaN94.64
CRUISER/RACER REQUIREMENTS*
Accommodation length12.0 mTable area0.55 m²Headroom1.81 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity150 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity90 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.