International
Certificate
2023

Boat

SILKE

ESP-4626

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.5°41.1°39.4°38.4°38.1°37.8°38.2°
Beat VMG3.364.094.604.864.965.025.02
52°5.136.066.626.897.007.067.10
60°5.406.306.807.067.197.267.32
75°5.586.466.947.227.427.567.69
90°5.466.406.977.307.527.758.06
110°5.316.437.067.467.808.108.51
120°5.126.256.967.407.788.158.87
135°4.595.726.587.117.517.908.73
150°3.874.975.916.657.137.508.24
Run VMG3.354.315.135.856.466.967.67
Gybe Angles145.1°149.6°152.5°157.7°169.1°177.2°179.0°

APH: 579.4

CDL: 8.721

GPH: 651.4

CertNo: 462601

BOAT
ClassFIRST 33.7DesignerJ. BERRETBuilderBENETEAUAge date06/1996Series date06/1996Offset fileE4626A1.OFFData fileE4626
HULL
Length Overall10.114 mMaximum Beam3.328 mDraft2.091 mDisplacement4,533 kgDLR5.9309IMS DivisionCruiser/RacerDynamic Allowance0.280%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight540 kgMinimum weight405 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail30.2930.95Headsail Luffed32.3732.37Headsail FlyingSymmetric68.1568.15Asymmetric65.7165.71 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail9.00Storm Jib8.29Heavy Weather Jib22.37
SAIL LIMITS
Headsails1  Spinnakers4 * Asymmetric SHALL NOT be tacked on the pole
STABILITY
Righting Moment93.5 kg·mStability Index109.0
COMMENTS
PROA MODIFICADA 3/00 AÑADIDO POSTIZO POPA. PESADO 1 DINA-DESPLAZAMIENTO 2019
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  03510002B83Issued on 20/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

SILKE

ESP-4626

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1072.6880.3783.1740.7725.2717.8716.6
52°701.9594.0544.0522.8514.6510.2507.0
60°666.2571.7529.6510.0500.9496.0491.9
75°645.0557.4519.1498.5484.9476.5467.9
90°659.7562.1516.3493.0478.5464.8446.4
110°678.6560.3509.9482.6461.4444.6422.9
120°703.6575.6516.9486.5462.9441.9406.0
135°784.3628.9547.2506.0479.3455.6412.5
150°931.4724.1608.8541.4504.9479.9436.8
Run VMG1075.5836.1701.5615.7557.6517.4469.3
Selected Courses
Windward / Leeward1074.0858.2742.3678.2641.4617.6592.9
All purpose825.2674.2597.9557.8535.0519.3498.8
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward711.10.8437
All purpose579.41.0355
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7452
Downwind "popa"0.8799
70% up, 30% down "Ilhabela"0.7810
30% up, 70% down "Ilhabela-inverso"0.8346
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Predominantly Upwind624.10.9613
Predominantly Downwind591.91.0137
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low749.60.8004
Triple Number All Purpose Medium575.21.0432
Triple Number All Purpose High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Predominantly Upwind624.10.9613
Predominantly Downwind591.91.0137
Predominantly Upwind Low826.60.7258
Predominantly Upwind Medium640.70.9365
Predominantly Upwind High601.80.9969
Predominantly Downwind Low828.20.7245
Predominantly Downwind Medium588.21.0201
Predominantly Downwind High488.41.2284
Chicago-Mac Upwind0.9444
Chicago-Mac All Purpose0.9670
Chicago-Mac Downwind0.9952
Bayview-Mac Cove Island0.8991
Bayview-Mac Shore0.9098
Victoria-Maui1.0660
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance630.5
Triple Number Coastal/Long Distance Low749.6
Triple Number Coastal/Long Distance Medium575.2
Triple Number Coastal/Long Distance High515.5
Triple Number Windward/Leeward Low966.2
Triple Number Windward/Leeward Medium705.4
Triple Number Windward/Leeward High614.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8004
Triple Number Coastal/Long Distance Medium1.0432
Triple Number Coastal/Long Distance High1.1639
Triple Number Windward/Leeward Low0.6210
Triple Number Windward/Leeward Medium0.8506
Triple Number Windward/Leeward High0.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low749.6
Triple Number Coastal/Long Distance Medium575.2
Triple Number Coastal/Long Distance High515.5
Triple Number Windward/Leeward Low966.2
Triple Number Windward/Leeward Medium705.4
Triple Number Windward/Leeward High614.3
Predominantly Upwind624.1
Predominantly Downwind591.9
Predominantly Reaching566.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8004
Triple Number Coastal/Long Distance Medium1.0432
Triple Number Coastal/Long Distance High1.1639
Triple Number Windward/Leeward Low0.6210
Triple Number Windward/Leeward Medium0.8506
Triple Number Windward/Leeward High0.9767
Coastal/Long Distance0.9516
Predominantly Upwind0.9613
Predominantly Downwind1.0137
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8004
Tretall Distanseseilas Mellomvind1.0432
Tretall Distanseseilas Mye vind1.1639
Tretall Pølsebane Lite vind0.6210
Tretall Pølsebane Mellomvind0.8506
Tretall Pølsebane Mye vind0.9767
Distanseseilas ett tall (OSN 8-16kn)0.9516
Distanseseilas ett tall (APH 6-20kn)1.0355
Enkeltall Motvind0.9613
Enkeltall Medvind1.0137
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Coastal/Long Distance630.50.9516
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind624.10.9613
Predominantly Downwind591.91.0137
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore600.40.9994
Cape Doctor Coastal504.91.1883
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8004
Triple Number Coastal/Long Distance Medium1.0432
Triple Number Coastal/Long Distance High1.1639
Triple Number Windward/Leeward Low0.6210
Triple Number Windward/Leeward Medium0.8506
Triple Number Windward/Leeward High0.9767
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8004
Triple Number Coastal/Long Distance Medium1.0432
Triple Number Coastal/Long Distance High1.1639
Triple Number Windward/Leeward Low0.6210
Triple Number Windward/Leeward Medium0.8506
Triple Number Windward/Leeward High0.9767
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Predominantly Upwind624.10.9613
Predominantly Downwind591.91.0137
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance630.50.9516
Triple Number Coastal/Long Distance Low749.60.8004
Triple Number Coastal/Long Distance Medium575.21.0432
Triple Number Coastal/Long Distance High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1074.2808.3671.3594.6555.2524.6476.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low749.60.8004
Triple Number All Purpose Medium575.21.0432
Triple Number All Purpose High515.51.1639
Triple Number Windward/Leeward Low966.20.6210
Triple Number Windward/Leeward Medium705.40.8506
Triple Number Windward/Leeward High614.30.9767
Predominantly Upwind624.10.9613
Predominantly Downwind591.91.0137
Predominantly Upwind Low826.60.7258
Predominantly Upwind Medium640.70.9365
Predominantly Upwind High601.80.9969
Predominantly Downwind Low828.20.7245
Predominantly Downwind Medium588.21.0201
Predominantly Downwind High488.41.2284
Chicago-Mac Upwind0.9444
Chicago-Mac All Purpose0.9670
Chicago-Mac Downwind0.9952
Bayview-Mac Cove Island0.8991
Bayview-Mac Shore0.9098
Harvest Moon Regatta503.81.1909
Victoria-Maui1.0660
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy603.60.9940
San Francisco Bay Medium699.20.8581
Predominantly Reaching1.0869
Predominantly Reaching Low0.8810
Predominantly Reaching Medium1.0967
Predominantly Reaching High1.2408
Windward/Leeward 60-40 Low968.20.6197
Windward/Leeward 60-40 Medium724.90.8277
Windward/Leeward 60-40 High650.00.9231
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1057.40.5674
5-Band Low / Medium880.20.6817
5-Band Medium692.60.8663
5-Band Medium / High622.60.9637
5-Band High597.21.0047
ORC Ref  03510002B83Issued on 20/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

SILKE

ESP-4626

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFIRST 33.7Measurement03/04/2017HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.114Max. Beam3.328Draft2.091Displacement4,533Wetted area22.46IMS L9.313LSM09.142Acc. length10.114Sink (kg/mm) 17.38
VCGD0.177VCGM0.164RM Rated (kg·m) 93.5Limit of positive stability(°) 109.1Stability Index109.0
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0051
PSD0.025PHD0.075PHL0.125
PSA16.3°ESL1.050
ST10.025ST20.080ST30.080
ST40.060ST50.165
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P11.600IG12.800ISP12.800MDT10.130MDL10.180MDT20.130MDL20.180TL0.000MW0.180GO0.200
E4.430J3.550BAS1.540FSD0.037SFJ0.115SPL3.730WPLTPS3.660BD0.110MWT122.00MCG4.350
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date01/04/2017MeasurerComment
SFFP0.490FFM1.287FF1.285LCFcl5.534SG1.0270
SAFP9.078FAM0.966FA0.967LCFsh5.777HBI1.101
W166.8W266.8W366.8W466.8
PD1591.5PD2586.0PD3594.7PD4591.1
WD10.480PLM9000.00GSA1.0RSA1.0RM93.3
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG001AGUA PVC14004.55002GASOIL PVC0.900045108.10Total deductible98.10
OTHER ITEMSIdKindDescriptionWeightLCGVCG001Battery2 DE 70 AMP7.00001EngineYANMAR 27 HPTotal deductible
ORC Ref  03510002B83Issued on 20/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

SILKE

ESP-4626

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment0020.130.821.532.803.8430.2903/05/2017OSP2140-001
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment0010.090.671.292.593.965.3212.28NoNo 32.3710/02/2019all round0.090.661.232.413.635.1910.11NoNo 25.1728/01/2016
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment112.5212.5212.526.586.3468.15
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment00113.1310.8311.986.735.99112%65.7101/01/2018
ORC Ref  03510002B83Issued on 20/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org