Club
Certificate
Non Spinnaker
2023

Boat

TESEO

ESP-10253_C

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 Angles43.8°41.4°40.6°40.2°40.2°40.0°40.2°
Beat VMG2.893.493.884.134.244.304.31
52°4.425.195.695.966.106.166.20
60°4.655.415.876.126.266.346.40
75°4.805.576.026.276.446.566.68
90°4.725.536.036.316.506.656.88
110°4.235.175.866.266.516.727.10
120°4.044.995.726.186.466.687.10
135°3.614.575.345.926.286.526.92
150°3.083.964.605.225.736.126.61
Run VMG2.673.434.174.835.405.866.42
Gybe Angles143.5°144.4°167.6°168.5°170.0°172.1°174.8°

APH: 690.4

CDL: 6.709

GPH: 778.2

CertNo: 102531

BOAT
ClassDUFOUR 31DesignerM. DUFOURBuilderTAYLORAge date02/1977Series date01/1975Offset fileE120.OFFData fileE10253_C
HULL
Length Overall9.320 mMaximum Beam3.288 mDraft1.819 mDisplacement5,098 kgDLR12.4785IMS DivisionCruiser/RacerDynamic Allowance0.700%Age Allowance0.487%
PROPELLER
InstallationShaft non exposedTypeSolid 2 bladesDiameter0.380m
CREW
Maximum weight320 kgMinimum weight235 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19.4519.83Headsail Luffed33.0333.03Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail5.55Storm Jib6.85Heavy Weather Jib18.49
SAIL LIMITS
Headsails1 * Woven polyester sails  Spinnakers0 * No spinnaker pole aboard
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
SIN SPINANKER
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  03510002BB6Issued on 23/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

TESEO

ESP-10253_C

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 VMG1243.61032.1926.8872.5849.8838.1835.7
52°814.3693.9633.1604.2590.5584.3580.3
60°774.3665.8613.3588.1574.8568.3562.8
75°750.1646.1597.8573.7559.0549.2539.1
90°763.5651.2597.5570.8553.9541.2522.9
110°851.8696.3614.3575.1552.6535.6506.8
120°890.8721.2628.9582.7557.2538.8507.3
135°997.2787.7674.6608.4573.7552.2520.4
150°1169.5909.7783.0690.2628.2588.4545.0
Run VMG1350.51050.4862.3745.6666.4614.3560.7
Selected Courses
Windward / Leeward1297.01041.2894.6809.1758.1726.2698.2
All purpose994.7812.6717.0663.0631.6612.1591.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward849.80.7061
All purpose690.40.8691
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6365
Downwind "popa"0.7179
70% up, 30% down "Ilhabela"0.6589
30% up, 70% down "Ilhabela-inverso"0.6914
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Predominantly Upwind734.60.8168
Predominantly Downwind712.30.8424
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low903.60.6640
Triple Number All Purpose Medium685.60.8751
Triple Number All Purpose High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Predominantly Upwind734.60.8168
Predominantly Downwind712.30.8424
Predominantly Upwind Low978.30.6133
Predominantly Upwind Medium750.80.7992
Predominantly Upwind High700.30.8568
Predominantly Downwind Low1021.00.5877
Predominantly Downwind Medium711.40.8434
Predominantly Downwind High584.01.0274
Chicago-Mac Upwind0.8013
Chicago-Mac All Purpose0.8118
Chicago-Mac Downwind0.8254
Bayview-Mac Cove Island0.7545
Bayview-Mac Shore0.7673
Victoria-Maui0.8760
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance755.0
Triple Number Coastal/Long Distance Low903.6
Triple Number Coastal/Long Distance Medium685.6
Triple Number Coastal/Long Distance High609.1
Triple Number Windward/Leeward Low1169.1
Triple Number Windward/Leeward Medium844.1
Triple Number Windward/Leeward High723.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6640
Triple Number Coastal/Long Distance Medium0.8751
Triple Number Coastal/Long Distance High0.9850
Triple Number Windward/Leeward Low0.5132
Triple Number Windward/Leeward Medium0.7108
Triple Number Windward/Leeward High0.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low903.6
Triple Number Coastal/Long Distance Medium685.6
Triple Number Coastal/Long Distance High609.1
Triple Number Windward/Leeward Low1169.1
Triple Number Windward/Leeward Medium844.1
Triple Number Windward/Leeward High723.7
Predominantly Upwind734.6
Predominantly Downwind712.3
Predominantly Reaching675.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6640
Triple Number Coastal/Long Distance Medium0.8751
Triple Number Coastal/Long Distance High0.9850
Triple Number Windward/Leeward Low0.5132
Triple Number Windward/Leeward Medium0.7108
Triple Number Windward/Leeward High0.8291
Coastal/Long Distance0.7947
Predominantly Upwind0.8168
Predominantly Downwind0.8424
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.6640
Tretall Distanseseilas Mellomvind0.8751
Tretall Distanseseilas Mye vind0.9850
Tretall Pølsebane Lite vind0.5132
Tretall Pølsebane Mellomvind0.7108
Tretall Pølsebane Mye vind0.8291
Distanseseilas ett tall (OSN 8-16kn)0.7947
Distanseseilas ett tall (APH 6-20kn)0.8691
Enkeltall Motvind0.8168
Enkeltall Medvind0.8424
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Coastal/Long Distance755.00.7947
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind734.60.8168
Predominantly Downwind712.30.8424
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore706.60.8492
Cape Doctor Coastal597.41.0043
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6640
Triple Number Coastal/Long Distance Medium0.8751
Triple Number Coastal/Long Distance High0.9850
Triple Number Windward/Leeward Low0.5132
Triple Number Windward/Leeward Medium0.7108
Triple Number Windward/Leeward High0.8291
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6640
Triple Number Coastal/Long Distance Medium0.8751
Triple Number Coastal/Long Distance High0.9850
Triple Number Windward/Leeward Low0.5132
Triple Number Windward/Leeward Medium0.7108
Triple Number Windward/Leeward High0.8291
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Predominantly Upwind734.60.8168
Predominantly Downwind712.30.8424
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low903.60.6640
Triple Number Coastal/Long Distance Medium685.60.8751
Triple Number Coastal/Long Distance High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1302.4980.4808.9709.8657.3619.9566.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low903.60.6640
Triple Number All Purpose Medium685.60.8751
Triple Number All Purpose High609.10.9850
Triple Number Windward/Leeward Low1169.10.5132
Triple Number Windward/Leeward Medium844.10.7108
Triple Number Windward/Leeward High723.70.8291
Predominantly Upwind734.60.8168
Predominantly Downwind712.30.8424
Predominantly Upwind Low978.30.6133
Predominantly Upwind Medium750.80.7992
Predominantly Upwind High700.30.8568
Predominantly Downwind Low1021.00.5877
Predominantly Downwind Medium711.40.8434
Predominantly Downwind High584.01.0274
Chicago-Mac Upwind0.8013
Chicago-Mac All Purpose0.8118
Chicago-Mac Downwind0.8254
Bayview-Mac Cove Island0.7545
Bayview-Mac Shore0.7673
Harvest Moon Regatta601.10.9982
Victoria-Maui0.8760
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy714.60.8396
San Francisco Bay Medium840.00.7143
Predominantly Reaching0.9186
Predominantly Reaching Low0.7320
Predominantly Reaching Medium0.9246
Predominantly Reaching High1.0512
Windward/Leeward 60-40 Low1162.90.5160
Windward/Leeward 60-40 Medium862.60.6955
Windward/Leeward 60-40 High763.30.7861
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1277.30.4697
5-Band Low / Medium1064.00.5639
5-Band Medium827.20.7253
5-Band Medium / High733.90.8176
5-Band High703.00.8535
ORC Ref  03510002BB6Issued on 23/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

TESEO

ESP-10253_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 31MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.320Max. Beam3.288Draft1.819Displacement5,098Wetted area20.40IMS L7.561LSM07.419Acc. length9.320Sink (kg/mm) 14.24
VCGD-0.093VCGM-0.002RM Rated (kg·m) 78.7Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeSolid 2 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0072
PSD0.025PHD0.075PHL0.125
PSA10.0°ESL0.080
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P10.060IG11.700ISP11.900MDT10.125MDL10.170MDT20.125MDL20.170TLMWGO
E3.150J3.610BAS1.400FSD0.050SFJSPLWPLTPSBD0.116MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered80.0Flotation Date01/01/2010MeasurerComment
SFFP0.760FFMFF1.224LCFcl5.386SG
SAFP8.895FAMFA0.921LCFsh5.634HBI1.091
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03510002BB6Issued on 23/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

TESEO

ESP-10253_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC19.45* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC5.300.00NoNo 33.03* Copied from legacy *
ORC Ref  03510002BB6Issued on 23/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org