Club
Certificate
Non Spinnaker
2023

Boat

IRREVERSIBLE

ESP-11061_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 Angles46.0°44.2°43.5°43.2°43.0°42.9°42.7°
Beat VMG2.643.213.613.924.124.244.34
52°4.144.935.495.896.146.296.43
60°4.415.195.766.126.346.496.65
75°4.605.405.986.326.546.716.95
90°4.555.385.996.366.616.797.11
110°4.155.095.836.326.636.867.28
120°3.984.935.696.226.566.817.26
135°3.564.525.305.936.366.647.08
150°3.053.924.585.205.756.186.74
Run VMG2.643.404.144.805.385.886.52
Gybe Angles143.9°144.4°167.6°168.5°169.0°170.3°173.5°

APH: 702.0

CDL: 6.752

GPH: 796.0

CertNo: 110611

BOAT
ClassWESTERLY LB 31DesignerJack Laurent GilesBuilderWESTERLYAge date10/1971Series date01/1971Offset fileGR0040.BOFData fileE11061_C
HULL
Length Overall9.390 mMaximum Beam2.908 mDraft1.561 mDisplacement6,960 kgDLR11.9676IMS DivisionCruiser/RacerDynamic Allowance0.720%Age Allowance0.487%
PROPELLER
InstallationShaft non exposedTypeSolid 3 bladesDiameter0.400m
CREW
Maximum weight76 kgMinimum weight76 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail18.1218.48Headsail Luffed35.7535.75Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail5.17Storm Jib6.71Heavy Weather Jib18.11
SAIL LIMITS
Headsails1  Spinnakers0 * No spinnaker pole aboard
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
MEDIDAS ESTIMADAS CASCO ESTIMADO.
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  03510002C11Issued on 02/02/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

IRREVERSIBLE

ESP-11061_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 VMG1363.31120.1996.1919.4873.6849.1828.8
52°870.5730.9655.4610.8586.4572.4559.9
60°816.4693.4625.0588.4567.5554.4541.0
75°782.5666.5602.4569.8550.4536.8517.9
90°791.4668.8600.6565.8545.0530.1506.2
110°867.2707.0617.2569.8543.3524.5494.2
120°904.9730.2633.0578.4548.6528.5496.1
135°1010.1795.6679.9607.1566.3542.0508.6
150°1181.6917.5786.0692.0626.3582.9534.2
Run VMG1364.41059.4868.5750.4669.5612.6551.8
Selected Courses
Windward / Leeward1363.91089.8932.3834.9771.5730.8690.3
All purpose1039.5843.9737.4673.0633.1607.5578.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward876.00.6849
All purpose702.00.8547
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6043
Downwind "popa"0.7147
70% up, 30% down "Ilhabela"0.6336
30% up, 70% down "Ilhabela-inverso"0.6776
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Predominantly Upwind755.50.7942
Predominantly Downwind719.80.8335
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low941.60.6372
Triple Number All Purpose Medium698.70.8587
Triple Number All Purpose High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Predominantly Upwind755.50.7942
Predominantly Downwind719.80.8335
Predominantly Upwind Low1040.80.5765
Predominantly Upwind Medium779.50.7697
Predominantly Upwind High697.50.8602
Predominantly Downwind Low1046.10.5736
Predominantly Downwind Medium715.30.8388
Predominantly Downwind High577.31.0392
Chicago-Mac Upwind0.7763
Chicago-Mac All Purpose0.7943
Chicago-Mac Downwind0.8159
Bayview-Mac Cove Island0.7316
Bayview-Mac Shore0.7425
Victoria-Maui0.8709
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance771.1
Triple Number Coastal/Long Distance Low941.6
Triple Number Coastal/Long Distance Medium698.7
Triple Number Coastal/Long Distance High603.1
Triple Number Windward/Leeward Low1226.7
Triple Number Windward/Leeward Medium872.7
Triple Number Windward/Leeward High725.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6372
Triple Number Coastal/Long Distance Medium0.8587
Triple Number Coastal/Long Distance High0.9949
Triple Number Windward/Leeward Low0.4891
Triple Number Windward/Leeward Medium0.6875
Triple Number Windward/Leeward High0.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low941.6
Triple Number Coastal/Long Distance Medium698.7
Triple Number Coastal/Long Distance High603.1
Triple Number Windward/Leeward Low1226.7
Triple Number Windward/Leeward Medium872.7
Triple Number Windward/Leeward High725.8
Predominantly Upwind755.5
Predominantly Downwind719.8
Predominantly Reaching682.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6372
Triple Number Coastal/Long Distance Medium0.8587
Triple Number Coastal/Long Distance High0.9949
Triple Number Windward/Leeward Low0.4891
Triple Number Windward/Leeward Medium0.6875
Triple Number Windward/Leeward High0.8267
Coastal/Long Distance0.7781
Predominantly Upwind0.7942
Predominantly Downwind0.8335
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.6372
Tretall Distanseseilas Mellomvind0.8587
Tretall Distanseseilas Mye vind0.9949
Tretall Pølsebane Lite vind0.4891
Tretall Pølsebane Mellomvind0.6875
Tretall Pølsebane Mye vind0.8267
Distanseseilas ett tall (OSN 8-16kn)0.7781
Distanseseilas ett tall (APH 6-20kn)0.8547
Enkeltall Motvind0.7942
Enkeltall Medvind0.8335
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Coastal/Long Distance771.10.7781
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind755.50.7942
Predominantly Downwind719.80.8335
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore702.50.8541
Cape Doctor Coastal587.31.0217
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6372
Triple Number Coastal/Long Distance Medium0.8587
Triple Number Coastal/Long Distance High0.9949
Triple Number Windward/Leeward Low0.4891
Triple Number Windward/Leeward Medium0.6875
Triple Number Windward/Leeward High0.8267
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6372
Triple Number Coastal/Long Distance Medium0.8587
Triple Number Coastal/Long Distance High0.9949
Triple Number Windward/Leeward Low0.4891
Triple Number Windward/Leeward Medium0.6875
Triple Number Windward/Leeward High0.8267
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Predominantly Upwind755.50.7942
Predominantly Downwind719.80.8335
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance771.10.7781
Triple Number Coastal/Long Distance Low941.60.6372
Triple Number Coastal/Long Distance Medium698.70.8587
Triple Number Coastal/Long Distance High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1363.91022.3836.9723.8659.5614.6552.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low941.60.6372
Triple Number All Purpose Medium698.70.8587
Triple Number All Purpose High603.10.9949
Triple Number Windward/Leeward Low1226.70.4891
Triple Number Windward/Leeward Medium872.70.6875
Triple Number Windward/Leeward High725.80.8267
Predominantly Upwind755.50.7942
Predominantly Downwind719.80.8335
Predominantly Upwind Low1040.80.5765
Predominantly Upwind Medium779.50.7697
Predominantly Upwind High697.50.8602
Predominantly Downwind Low1046.10.5736
Predominantly Downwind Medium715.30.8388
Predominantly Downwind High577.31.0392
Chicago-Mac Upwind0.7763
Chicago-Mac All Purpose0.7943
Chicago-Mac Downwind0.8159
Bayview-Mac Cove Island0.7316
Bayview-Mac Shore0.7425
Harvest Moon Regatta599.21.0014
Victoria-Maui0.8709
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy716.20.8378
San Francisco Bay Medium868.30.6910
Predominantly Reaching0.9097
Predominantly Reaching Low0.7093
Predominantly Reaching Medium0.9148
Predominantly Reaching High1.0694
Windward/Leeward 60-40 Low1229.80.4879
Windward/Leeward 60-40 Medium899.20.6673
Windward/Leeward 60-40 High767.30.7820
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1342.80.4468
5-Band Low / Medium1113.60.5388
5-Band Medium853.00.7034
5-Band Medium / High739.70.8112
5-Band High697.30.8604
ORC Ref  03510002C11Issued on 02/02/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

IRREVERSIBLE

ESP-11061_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassWESTERLY LB 31MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.390Max. Beam2.908Draft1.561Displacement6,960Wetted area24.48IMS L8.229LSM08.346Acc. length9.390Sink (kg/mm) 16.93
VCGD-0.242VCGM-0.371RM Rated (kg·m) 144.2Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeSolid 3 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0098
PSD0.025PHD0.058PHL0.036
PSA19.7°ESL0.191
RIG
Forestay tensionFixedInner stayFixedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P9.680IG11.580ISP11.600MDT10.100MDL10.110MDT2MDL2TLMWGO
E3.050J3.400BAS1.707FSD0.050SFJ0.100SPLWPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered145.0Flotation Date01/01/2010MeasurerComment
SFFP0.578FFMFF1.121LCFcl5.217SG1.0250
SAFP9.153FAMFA0.736LCFsh5.437HBI0.828
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03510002C11Issued on 02/02/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

IRREVERSIBLE

ESP-11061_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC18.12* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC5.82NoNo 35.75* Copied from legacy *
ORC Ref  03510002C11Issued on 02/02/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org