International
Certificate
2023

Boat

BUCHACA

ESP-7977

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 Angles43.0°41.4°40.0°39.0°38.7°38.4°38.8°
Beat VMG3.384.104.604.864.985.035.04
52°5.186.106.666.947.067.137.18
60°5.466.346.847.127.267.347.40
75°5.646.516.987.287.497.637.79
90°5.526.457.007.317.577.808.14
110°5.416.527.147.537.858.128.45
120°5.256.387.067.487.868.208.81
135°4.735.876.707.227.607.998.78
150°4.015.116.056.777.237.598.32
Run VMG3.474.435.255.966.567.057.75
Gybe Angles145.1°149.6°152.9°157.9°170.0°177.2°179.0°

APH: 573.8

CDL: 8.797

GPH: 643.9

CertNo: 797704

BOAT
ClassDUFOUR 34DesignerFelci YachtsBuilderDUFOURAge date05/2005Series date07/2002Offset fileDUF34PERF.offData fileE7977
HULL
Length Overall10.300 mMaximum Beam3.482 mDraft1.935 mDisplacement5,395 kgDLR6.7136IMS DivisionCruiser/RacerDynamic Allowance0.210%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.410m
CREW
Maximum weight563 kgMinimum weight422 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail33.3634.08Headsail Luffed34.4834.48Headsail FlyingSymmetric77.5077.50Asymmetric
STORM SAIL AREAS (m²)
Trysail9.97Storm Jib8.74Heavy Weather Jib23.60
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment112.2 kg·mStability Index112.7
COMMENTS
VERSION PALO LARGO
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  03510002TA3Issued on 25/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

BUCHACA

ESP-7977

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 VMG1063.7878.3782.9740.0723.6715.6713.8
52°694.8590.5540.7518.6509.6504.8501.4
60°659.2567.8526.1505.8495.8490.8486.2
75°638.0553.4515.4494.7480.9471.6462.3
90°652.1557.8514.4492.5475.7461.7442.3
110°664.9552.0504.1478.1458.5443.3426.0
120°685.5564.5509.8481.0458.2438.9408.5
135°760.5613.4537.2498.9473.5450.8409.8
150°898.8704.0595.2532.1498.0474.2432.9
Run VMG1037.9812.9685.4604.3548.9510.4464.2
Selected Courses
Windward / Leeward1050.8845.6734.2672.2636.2613.0589.0
All purpose809.3665.2591.9553.2530.6515.3495.8
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward703.60.8528
All purpose573.81.0457
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7476
Downwind "popa"0.9005
70% up, 30% down "Ilhabela"0.7877
30% up, 70% down "Ilhabela-inverso"0.8485
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Predominantly Upwind619.60.9684
Predominantly Downwind583.41.0285
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low737.30.8138
Triple Number All Purpose Medium569.81.0530
Triple Number All Purpose High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Predominantly Upwind619.60.9684
Predominantly Downwind583.41.0285
Predominantly Upwind Low817.30.7341
Predominantly Upwind Medium638.00.9404
Predominantly Upwind High598.21.0030
Predominantly Downwind Low808.10.7425
Predominantly Downwind Medium578.51.0371
Predominantly Downwind High483.11.2419
Chicago-Mac Upwind0.9512
Chicago-Mac All Purpose0.9777
Chicago-Mac Downwind1.0103
Bayview-Mac Cove Island0.9101
Bayview-Mac Shore0.9191
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching546.71.0974
Predominantly Reaching Low669.50.8962
Predominantly Reaching Medium541.51.1081
Predominantly Reaching High479.31.2517
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1035.00.5797
5-Band Low / Medium866.00.6928
5-Band Medium686.00.8747
5-Band Medium / High617.80.9711
5-Band High593.21.0115
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance624.0
Triple Number Coastal/Long Distance Low737.3
Triple Number Coastal/Long Distance Medium569.8
Triple Number Coastal/Long Distance High511.8
Triple Number Windward/Leeward Low948.2
Triple Number Windward/Leeward Medium698.3
Triple Number Windward/Leeward High609.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8138
Triple Number Coastal/Long Distance Medium1.0530
Triple Number Coastal/Long Distance High1.1723
Triple Number Windward/Leeward Low0.6328
Triple Number Windward/Leeward Medium0.8592
Triple Number Windward/Leeward High0.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low737.3
Triple Number Coastal/Long Distance Medium569.8
Triple Number Coastal/Long Distance High511.8
Triple Number Windward/Leeward Low948.2
Triple Number Windward/Leeward Medium698.3
Triple Number Windward/Leeward High609.8
Predominantly Upwind619.6
Predominantly Downwind583.4
Predominantly Reaching559.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8138
Triple Number Coastal/Long Distance Medium1.0530
Triple Number Coastal/Long Distance High1.1723
Triple Number Windward/Leeward Low0.6328
Triple Number Windward/Leeward Medium0.8592
Triple Number Windward/Leeward High0.9839
Coastal/Long Distance0.9615
Predominantly Upwind0.9684
Predominantly Downwind1.0285
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8138
Tretall Distanseseilas Mellomvind1.0530
Tretall Distanseseilas Mye vind1.1723
Tretall Pølsebane Lite vind0.6328
Tretall Pølsebane Mellomvind0.8592
Tretall Pølsebane Mye vind0.9839
Distanseseilas ett tall (OSN 8-16kn)0.9615
Distanseseilas ett tall (APH 6-20kn)1.0457
Enkeltall Motvind0.9684
Enkeltall Medvind1.0285
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Coastal/Long Distance624.00.9615
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind619.60.9684
Predominantly Downwind583.41.0285
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore596.21.0063
Cape Doctor Coastal501.61.1961
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8138
Triple Number Coastal/Long Distance Medium1.0530
Triple Number Coastal/Long Distance High1.1723
Triple Number Windward/Leeward Low0.6328
Triple Number Windward/Leeward Medium0.8592
Triple Number Windward/Leeward High0.9839
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8138
Triple Number Coastal/Long Distance Medium1.0530
Triple Number Coastal/Long Distance High1.1723
Triple Number Windward/Leeward Low0.6328
Triple Number Windward/Leeward Medium0.8592
Triple Number Windward/Leeward High0.9839
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Predominantly Upwind619.60.9684
Predominantly Downwind583.41.0285
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low737.30.8138
Triple Number Coastal/Long Distance Medium569.81.0530
Triple Number Coastal/Long Distance High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1049.5796.2664.2589.8550.6520.5473.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low737.30.8138
Triple Number All Purpose Medium569.81.0530
Triple Number All Purpose High511.81.1723
Triple Number Windward/Leeward Low948.20.6328
Triple Number Windward/Leeward Medium698.30.8592
Triple Number Windward/Leeward High609.80.9839
Predominantly Upwind619.60.9684
Predominantly Downwind583.41.0285
Predominantly Upwind Low817.30.7341
Predominantly Upwind Medium638.00.9404
Predominantly Upwind High598.21.0030
Predominantly Downwind Low808.10.7425
Predominantly Downwind Medium578.51.0371
Predominantly Downwind High483.11.2419
Chicago-Mac Upwind0.9512
Chicago-Mac All Purpose0.9777
Chicago-Mac Downwind1.0103
Bayview-Mac Cove Island0.9101
Bayview-Mac Shore0.9191
Harvest Moon Regatta499.41.2014
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy599.51.0008
San Francisco Bay Medium692.30.8667
Predominantly Reaching546.71.0974
Predominantly Reaching Low669.50.8962
Predominantly Reaching Medium541.51.1081
Predominantly Reaching High479.31.2517
Windward/Leeward 60-40 Low952.80.6298
Windward/Leeward 60-40 Medium719.90.8335
Windward/Leeward 60-40 High646.20.9284
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1035.00.5797
5-Band Low / Medium866.00.6928
5-Band Medium686.00.8747
5-Band Medium / High617.80.9711
5-Band High593.21.0115
ORC Ref  03510002TA3Issued on 25/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

BUCHACA

ESP-7977

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 34Measurement02/05/2009HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.300Max. Beam3.482Draft1.935Displacement5,395Wetted area23.89IMS L9.450LSM09.296Acc. length10.300Sink (kg/mm) 18.45
VCGD0.115VCGM0.137RM Rated (kg·m) 112.2Limit of positive stability(°) 111.8Stability Index112.7
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.410PBWPIPA0.0034
EDL2.210ST10.064ST2
ST3ST40.104ST50.220
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P12.250IG13.180ISP13.860MDT10.120MDL10.180MDT20.120MDL20.140TL0.780MW0.178GO0.190
E4.650J3.900BAS1.560FSD0.030SFJSPL3.960WPLTPSBD0.132MWT132.00MCG5.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date05/04/2018MeasurerESP 100Comment
SFFP0.390FFM1.292FF1.292LCFcl5.746SG1.0250
SAFP9.636FAM1.040FA1.041LCFsh5.994HBI1.118
W183.5W283.5W383.5W483.5
PD1658.0PD2649.3PD3622.2PD4632.3
WD10.850PLM9000.00GSA1.0RSA1.0RM111.5
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1AGUA RIGIDO VACIO15001.941AGUA RIGIDO VACIO9007.941FUEL RIGIDO RESERVA0.90009057.941RES RIGIDO VACIO8007.94Total deductible57.94
OTHER ITEMSIdKindDescriptionWeightLCGVCG1Battery2 DE 70Ah07.941Battery1 DE 50Ah07.941EngineVOLVO 30CVTotal deductible0
ORC Ref  03510002TA3Issued on 25/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

BUCHACA

ESP-7977

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment0020.170.961.702.913.8633.3619/09/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment0010.090.661.282.634.055.4212.87NoNo 34.4817/10/2023ligero0020.100.651.252.523.855.1913.07NoNo 33.5408/07/2022
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment213.4013.4013.407.006.7077.5000113.1513.1513.156.966.9076.1418/09/2008
ORC Ref  03510002TA3Issued on 25/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org