International
Certificate
2023

Boat

BALANGUERA

ESP-9653

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 Angles43.2°41.4°40.5°39.4°38.8°38.8°39.0°
Beat VMG2.913.493.924.214.384.464.49
52°4.435.205.716.016.196.286.35
60°4.655.425.896.166.336.446.53
75°4.785.576.046.316.496.636.81
90°4.755.666.196.476.646.746.97
110°4.835.766.296.606.847.077.48
120°4.685.636.226.576.847.097.64
135°4.275.235.956.376.676.937.50
150°3.654.615.406.006.386.667.17
Run VMG3.163.994.715.335.876.266.79
Gybe Angles145.7°151.6°155.0°162.2°174.8°178.1°179.0°

APH: 655.3

CDL: 6.749

GPH: 735.4

CertNo: 965301

BOAT
ClassDUFOUR 31DesignerDUFOURBuilderDUFOURAge date02/1977Series date01/1977Offset fileE120.OFFData fileE9653
HULL
Length Overall9.320 mMaximum Beam3.288 mDraft1.768 mDisplacement4,480 kgDLR12.2928IMS DivisionCruiser/RacerDynamic Allowance0.670%Age Allowance0.487%
PROPELLER
InstallationShaft non exposedTypeFeathering 3 bladesDiameter0.400m
CREW
Maximum weight450 kgMinimum weight338 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19.4619.84Headsail Luffed29.3129.31Headsail FlyingSymmetric63.5263.52Asymmetric61.8461.84 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail5.59Storm Jib6.91Heavy Weather Jib18.64
SAIL LIMITS
Headsails1  Spinnakers4 * Asymmetric may be tacked on the pole
STABILITY
Righting Moment74.2 kg·mStability Index124.4
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  03510002AWIIssued on 15/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

BALANGUERA

ESP-9653

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 VMG1238.51030.4919.0854.4821.6807.9802.2
52°813.2691.7630.0598.5581.7573.0567.4
60°774.5663.8610.8584.0568.4559.0551.7
75°753.3646.5596.4571.0555.0543.3528.9
90°758.5635.9581.8556.5542.0534.0516.4
110°746.0625.1572.7545.8526.2509.4481.1
120°769.8639.4578.6548.3526.6507.4471.1
135°843.0688.5605.5565.1540.0519.2480.1
150°985.4781.6666.4599.6564.1540.6502.1
Run VMG1137.9902.1765.0675.0613.4574.7530.1
Selected Courses
Windward / Leeward1188.2966.3842.0764.7717.5691.3666.2
All purpose922.1762.2678.5631.5604.0587.2565.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward799.80.7502
All purpose655.30.9157
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6487
Downwind "popa"0.8080
70% up, 30% down "Ilhabela"0.6895
30% up, 70% down "Ilhabela-inverso"0.7526
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Predominantly Upwind711.00.8438
Predominantly Downwind661.00.9077
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low842.20.7124
Triple Number All Purpose Medium651.20.9214
Triple Number All Purpose High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Predominantly Upwind711.00.8438
Predominantly Downwind661.00.9077
Predominantly Upwind Low944.70.6351
Predominantly Upwind Medium736.20.8150
Predominantly Upwind High678.40.8844
Predominantly Downwind Low906.80.6617
Predominantly Downwind Medium650.80.9219
Predominantly Downwind High551.21.0886
Chicago-Mac Upwind0.8273
Chicago-Mac All Purpose0.8564
Chicago-Mac Downwind0.8921
Bayview-Mac Cove Island0.7951
Bayview-Mac Shore0.8005
Victoria-Maui0.9536
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance712.1
Triple Number Coastal/Long Distance Low842.2
Triple Number Coastal/Long Distance Medium651.2
Triple Number Coastal/Long Distance High583.3
Triple Number Windward/Leeward Low1077.2
Triple Number Windward/Leeward Medium795.4
Triple Number Windward/Leeward High688.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7124
Triple Number Coastal/Long Distance Medium0.9214
Triple Number Coastal/Long Distance High1.0286
Triple Number Windward/Leeward Low0.5570
Triple Number Windward/Leeward Medium0.7543
Triple Number Windward/Leeward High0.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low842.2
Triple Number Coastal/Long Distance Medium651.2
Triple Number Coastal/Long Distance High583.3
Triple Number Windward/Leeward Low1077.2
Triple Number Windward/Leeward Medium795.4
Triple Number Windward/Leeward High688.5
Predominantly Upwind711.0
Predominantly Downwind661.0
Predominantly Reaching636.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7124
Triple Number Coastal/Long Distance Medium0.9214
Triple Number Coastal/Long Distance High1.0286
Triple Number Windward/Leeward Low0.5570
Triple Number Windward/Leeward Medium0.7543
Triple Number Windward/Leeward High0.8715
Coastal/Long Distance0.8425
Predominantly Upwind0.8438
Predominantly Downwind0.9077
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7124
Tretall Distanseseilas Mellomvind0.9214
Tretall Distanseseilas Mye vind1.0286
Tretall Pølsebane Lite vind0.5570
Tretall Pølsebane Mellomvind0.7543
Tretall Pølsebane Mye vind0.8715
Distanseseilas ett tall (OSN 8-16kn)0.8425
Distanseseilas ett tall (APH 6-20kn)0.9157
Enkeltall Motvind0.8438
Enkeltall Medvind0.9077
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Coastal/Long Distance712.10.8425
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind711.00.8438
Predominantly Downwind661.00.9077
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore673.70.8906
Cape Doctor Coastal572.11.0488
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7124
Triple Number Coastal/Long Distance Medium0.9214
Triple Number Coastal/Long Distance High1.0286
Triple Number Windward/Leeward Low0.5570
Triple Number Windward/Leeward Medium0.7543
Triple Number Windward/Leeward High0.8715
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7124
Triple Number Coastal/Long Distance Medium0.9214
Triple Number Coastal/Long Distance High1.0286
Triple Number Windward/Leeward Low0.5570
Triple Number Windward/Leeward Medium0.7543
Triple Number Windward/Leeward High0.8715
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Predominantly Upwind711.00.8438
Predominantly Downwind661.00.9077
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance712.10.8425
Triple Number Coastal/Long Distance Low842.20.7124
Triple Number Coastal/Long Distance Medium651.20.9214
Triple Number Coastal/Long Distance High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1183.1909.0761.2673.0626.1593.5542.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low842.20.7124
Triple Number All Purpose Medium651.20.9214
Triple Number All Purpose High583.31.0286
Triple Number Windward/Leeward Low1077.20.5570
Triple Number Windward/Leeward Medium795.40.7543
Triple Number Windward/Leeward High688.50.8715
Predominantly Upwind711.00.8438
Predominantly Downwind661.00.9077
Predominantly Upwind Low944.70.6351
Predominantly Upwind Medium736.20.8150
Predominantly Upwind High678.40.8844
Predominantly Downwind Low906.80.6617
Predominantly Downwind Medium650.80.9219
Predominantly Downwind High551.21.0886
Chicago-Mac Upwind0.8273
Chicago-Mac All Purpose0.8564
Chicago-Mac Downwind0.8921
Bayview-Mac Cove Island0.7951
Bayview-Mac Shore0.8005
Harvest Moon Regatta572.01.0490
Victoria-Maui0.9536
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy679.50.8830
San Francisco Bay Medium791.20.7583
Predominantly Reaching0.9624
Predominantly Reaching Low0.7861
Predominantly Reaching Medium0.9734
Predominantly Reaching High1.0914
Windward/Leeward 60-40 Low1088.70.5511
Windward/Leeward 60-40 Medium825.10.7272
Windward/Leeward 60-40 High729.50.8225
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1171.10.5123
5-Band Low / Medium986.60.6082
5-Band Medium780.40.7689
5-Band Medium / High697.60.8600
5-Band High670.50.8948
ORC Ref  03510002AWIIssued on 15/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

BALANGUERA

ESP-9653

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 31Measurement21/01/2011HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.320Max. Beam3.288Draft1.768Displacement4,480Wetted area19.21IMS L7.388LSM07.142Acc. length9.320Sink (kg/mm) 13.32
VCGD-0.181VCGM-0.047RM Rated (kg·m) 74.2Limit of positive stability(°) 125.0Stability Index124.4
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0016
PSD0.025PHD0.075PHL0.100
PSA10.0°ESL0.080
RIG
Forestay tensionAftInner stayFixedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P10.060IG11.700ISP11.800MDT10.110MDL10.175MDT20.110MDL20.175TLMW0.175GO0.190
E3.170J3.610BAS1.354FSD0.040SFJSPL3.690WPLTPS3.610BD0.120MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date21/12/2018MeasurerESP 762Comment
SFFP0.760FFM1.186FF1.189LCFcl5.226SG1.0250
SAFP8.895FAM1.030FA1.029LCFsh5.480HBI1.107
W151.9W251.9W351.9W451.9
PD1582.5PD2580.5PD3581.3PD4587.6
WD10.530PLM9000.00GSA1.0RSA1.0RM73.8
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG001gasoil metalico0.9000100154.00002agua metalico10004.00Total deductible144.00
OTHER ITEMSIdKindDescriptionWeightLCGVCG3xBattery100AH 12V3.101EngineBetus 28 caballos Distance: 3,30Total deductible
ORC Ref  03510002AWIIssued on 15/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

International
Certificate
2023

Boat

BALANGUERA

ESP-9653

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM10.140.741.332.102.6519.4612/02/2016
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ10.060.651.302.664.055.4210.91NoNo 29.3112/02/2016
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS111.6711.6711.676.596.3063.5212/02/2016
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment00111.329.3010.317.366.55112%61.8412/02/2016
ORC Ref  03510002AWIIssued on 15/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org