International
Certificate
2023

Boat

ESTERO BLANCO

ESP-4616

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 Angles42.6°40.5°37.8°37.2°37.2°37.5°38.7°
Beat VMG3.243.934.354.474.524.544.48
52°4.895.736.116.246.316.356.36
60°5.135.906.266.446.536.586.62
75°5.276.026.406.706.886.997.11
90°5.276.096.456.797.137.407.70
110°5.266.176.707.147.487.768.25
120°5.086.056.627.157.718.259.04
135°4.545.616.276.797.358.039.99
150°3.774.835.726.326.807.328.67
Run VMG3.274.194.985.646.186.627.58
Gybe Angles144.2°149.2°154.1°162.8°177.2°177.2°173.0°

APH: 614.0

CDL: 6.903

GPH: 686.4

CertNo: 461601

BOAT
ClassBRENTA 24DesignerL.BRENTABuilderINT.COMPOSITESAge date01/1996Series date01/1995Offset fileE302.OFFData fileE4616
HULL
Length Overall7.489 mMaximum Beam2.378 mDraft1.655 mDisplacement1,139 kgDLR4.2053IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight325 kgMinimum weight240 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail18.0718.48Headsail Luffed11.6111.61Headsail FlyingSymmetric36.3936.39Asymmetric
STORM SAIL AREAS (m²)
Trysail5.35Storm Jib3.91Heavy Weather Jib10.55
SAIL LIMITS
Headsails5 * Woven polyester sails  Spinnakers4
STABILITY
Righting Moment19.4 kg·mStability Index108.9
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  03510002C3KIssued on 04/02/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

ESTERO BLANCO

ESP-4616

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 VMG1111.6915.0827.9805.1796.6793.5804.2
52°736.0628.5589.1576.5570.2566.8566.2
60°702.3610.2574.8559.3551.5546.8543.6
75°683.4598.4562.5537.4523.2514.8506.3
90°683.5590.9557.8530.3505.0486.4467.5
110°684.3583.3537.7504.0481.5463.8436.4
120°708.4595.5544.1503.4467.0436.6398.3
135°792.7642.2574.3530.4489.8448.3360.4
150°954.0744.8629.3569.7529.4492.0415.3
Run VMG1101.6860.0723.6638.6582.3544.2475.0
Selected Courses
Windward / Leeward1106.6887.5775.7721.8689.4668.8639.6
All purpose850.5701.8632.4595.9571.9553.4525.3
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward752.50.7973
All purpose614.00.9773
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6938
Downwind "popa"0.8528
70% up, 30% down "Ilhabela"0.7349
30% up, 70% down "Ilhabela-inverso"0.7979
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Predominantly Upwind667.30.8991
Predominantly Downwind618.10.9706
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low776.20.7730
Triple Number All Purpose Medium610.90.9821
Triple Number All Purpose High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Predominantly Upwind667.30.8991
Predominantly Downwind618.10.9706
Predominantly Upwind Low857.90.6994
Predominantly Upwind Medium690.30.8692
Predominantly Upwind High661.40.9072
Predominantly Downwind Low851.70.7045
Predominantly Downwind Medium614.20.9769
Predominantly Downwind High498.11.2045
Chicago-Mac Upwind0.8848
Chicago-Mac All Purpose0.9164
Chicago-Mac Downwind0.9532
Bayview-Mac Cove Island0.8578
Bayview-Mac Shore0.8648
Victoria-Maui1.0323
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance666.0
Triple Number Coastal/Long Distance Low776.2
Triple Number Coastal/Long Distance Medium610.9
Triple Number Coastal/Long Distance High547.5
Triple Number Windward/Leeward Low997.0
Triple Number Windward/Leeward Medium745.5
Triple Number Windward/Leeward High663.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7730
Triple Number Coastal/Long Distance Medium0.9821
Triple Number Coastal/Long Distance High1.0959
Triple Number Windward/Leeward Low0.6018
Triple Number Windward/Leeward Medium0.8048
Triple Number Windward/Leeward High0.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low776.2
Triple Number Coastal/Long Distance Medium610.9
Triple Number Coastal/Long Distance High547.5
Triple Number Windward/Leeward Low997.0
Triple Number Windward/Leeward Medium745.5
Triple Number Windward/Leeward High663.0
Predominantly Upwind667.3
Predominantly Downwind618.1
Predominantly Reaching594.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7730
Triple Number Coastal/Long Distance Medium0.9821
Triple Number Coastal/Long Distance High1.0959
Triple Number Windward/Leeward Low0.6018
Triple Number Windward/Leeward Medium0.8048
Triple Number Windward/Leeward High0.9050
Coastal/Long Distance0.9009
Predominantly Upwind0.8991
Predominantly Downwind0.9706
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7730
Tretall Distanseseilas Mellomvind0.9821
Tretall Distanseseilas Mye vind1.0959
Tretall Pølsebane Lite vind0.6018
Tretall Pølsebane Mellomvind0.8048
Tretall Pølsebane Mye vind0.9050
Distanseseilas ett tall (OSN 8-16kn)0.9009
Distanseseilas ett tall (APH 6-20kn)0.9773
Enkeltall Motvind0.8991
Enkeltall Medvind0.9706
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Coastal/Long Distance666.00.9009
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind667.30.8991
Predominantly Downwind618.10.9706
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore648.40.9254
Cape Doctor Coastal533.71.1241
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7730
Triple Number Coastal/Long Distance Medium0.9821
Triple Number Coastal/Long Distance High1.0959
Triple Number Windward/Leeward Low0.6018
Triple Number Windward/Leeward Medium0.8048
Triple Number Windward/Leeward High0.9050
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7730
Triple Number Coastal/Long Distance Medium0.9821
Triple Number Coastal/Long Distance High1.0959
Triple Number Windward/Leeward Low0.6018
Triple Number Windward/Leeward Medium0.8048
Triple Number Windward/Leeward High0.9050
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Predominantly Upwind667.30.8991
Predominantly Downwind618.10.9706
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance666.00.9009
Triple Number Coastal/Long Distance Low776.20.7730
Triple Number Coastal/Long Distance Medium610.90.9821
Triple Number Coastal/Long Distance High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1106.1837.1705.4635.2592.7556.6498.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low776.20.7730
Triple Number All Purpose Medium610.90.9821
Triple Number All Purpose High547.51.0959
Triple Number Windward/Leeward Low997.00.6018
Triple Number Windward/Leeward Medium745.50.8048
Triple Number Windward/Leeward High663.00.9050
Predominantly Upwind667.30.8991
Predominantly Downwind618.10.9706
Predominantly Upwind Low857.90.6994
Predominantly Upwind Medium690.30.8692
Predominantly Upwind High661.40.9072
Predominantly Downwind Low851.70.7045
Predominantly Downwind Medium614.20.9769
Predominantly Downwind High498.11.2045
Chicago-Mac Upwind0.8848
Chicago-Mac All Purpose0.9164
Chicago-Mac Downwind0.9532
Bayview-Mac Cove Island0.8578
Bayview-Mac Shore0.8648
Harvest Moon Regatta525.41.1420
Victoria-Maui1.0323
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy646.50.9280
San Francisco Bay Medium737.20.8139
Predominantly Reaching1.0298
Predominantly Reaching Low0.8520
Predominantly Reaching Medium1.0354
Predominantly Reaching High1.1936
Windward/Leeward 60-40 Low1000.30.5998
Windward/Leeward 60-40 Medium770.80.7785
Windward/Leeward 60-40 High709.00.8462
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1089.70.5506
5-Band Low / Medium912.20.6577
5-Band Medium734.60.8167
5-Band Medium / High671.80.8931
5-Band High644.70.9307
ORC Ref  03510002C3KIssued on 04/02/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

ESTERO BLANCO

ESP-4616

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassBRENTA 24Measurement14/06/2009HINPlan reviewHull constructionSolidCarbon RudderYesLight stanchionsNoTrim tabNo
LOA7.489Max. Beam2.378Draft1.655Displacement1,139Wetted area10.41IMS L6.925LSM06.470Acc. length7.489Sink (kg/mm) 7.83
VCGD-0.064VCGM-0.028RM Rated (kg·m) 19.4Limit of positive stability(°) 117.0Stability Index108.9
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P8.950IG8.770ISP8.770MDT10.080MDL10.120MDT20.080MDL20.065TL1.480MW0.120GO0.140
E3.410J2.670BAS1.165FSD0.022SFJ0.200SPL2.680WPLTPSBD0.112MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date12/07/2015MeasurerESP 386CommentLCF EN 4,041
SFFP0.066FFM0.886FF0.886LCFcl4.027SG1.0250
SAFP7.097FAM0.688FA0.688LCFsh4.191HBI0.800
W118.8W218.8W318.8W418.8
PD1532.6PD2531.2PD3534.4PD4537.6
WD6.950PLM9000.00GSA1.0RSA1.0RM19.3
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGBATBattery40 Ah3.40ENGEngine SIN MOTOR FUERABORDA A BORDOTotal deductible
ORC Ref  03510002C3KIssued on 04/02/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

ESTERO BLANCO

ESP-4616

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM-10.150.701.272.182.8518.0724/06/2015
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ-10.060.360.691.372.052.698.49YesNo 11.6124/06/2015
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS-18.668.668.665.064.9736.3924/06/2015
ORC Ref  03510002C3KIssued on 04/02/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org