Club Certificate2025
MAXIMVSPOR 8540
Federação Portuguesa de Vela
Doca de Belém
1300-038 Lisboa, Portugal
fpvela.pt
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles44.9°44.9°43.0°41.7°40.2°38.8°38.2°38.5°39.3°
Beat VMG2.293.213.984.575.045.375.555.655.59
52°3.634.996.046.787.287.617.807.947.94
60°3.895.296.337.047.497.797.998.178.20
75°4.055.486.527.237.667.958.198.548.68
90°3.925.446.657.477.958.268.468.729.07
110°3.985.556.807.618.098.488.849.479.87
120°3.865.386.617.477.998.398.789.5610.42
135°3.374.796.016.987.648.088.479.2510.19
150°2.784.035.186.156.957.537.938.589.24
Run VMG2.403.494.485.326.026.556.987.678.25
Gybe Angles143.3°143.3°146.9°148.3°149.6°152.5°157.5°163.5°176.6°
APH ToD:552.8CDL: 10.034APH ToT: 1.0854CertNo:
BOAT
ClassDUFOUR 425 GLDesignerFELCIBuilderDUFOURAge date07/2010Series date01/2009Offset fileDUF425CL.OFFData filePOR8540C
HULL
Length Overall12.600 mMaximum Beam4.170 mDraft2.098 mDisplacement8,813 kgDLR6.4213IMS DivisionCruiser/RacerDynamic Allowance0.390%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFeathering 3 bladesDiameterm
CREW
Maximum weight800 kg(default)Minimum weight670 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail35.0335.37Headsail Luffed44.0844.08Headsail FlyingSymmetricAsymmetric101.84101.84 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail11.26Storm Jib10.81Heavy Weather Jib29.18
SAIL LIMITS
Headsails6Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
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  03530003W4EIssued on 26/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MAXIMVSPOR 8540
Federação Portuguesa de Vela
Doca de Belém
1300-038 Lisboa, Portugal
fpvela.pt
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1572.21119.8904.0788.1714.9669.9648.6637.1644.1
52°991.7721.8596.4531.0494.2473.1461.4453.5453.5
60°924.3680.2568.7511.3480.5462.3450.8440.6438.8
75°888.0656.5551.8498.3469.9452.7439.6421.7414.7
90°919.5662.2541.6482.0453.0435.9425.6413.0397.1
110°904.2648.7529.5473.0445.1424.8407.2380.3364.8
120°931.9668.6544.4482.0450.8429.1409.9376.4345.6
135°1066.9751.5598.8516.0471.3445.6425.3389.0353.4
150°1296.9893.4695.6585.5518.0477.9453.8419.6389.6
Run VMG1497.51031.6803.2676.1598.2550.0515.6469.4436.3
Selected Courses
Windward / Leeward1534.21075.7853.6732.1656.5610.0582.1553.2540.2
All purpose1157.4823.1663.3578.6529.4499.4480.1457.6444.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward690.40.8691
All purpose552.81.0854
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7661
Downwind "popa"0.9044
70% up, 30% down "Ilhabela"0.8029
30% up, 70% down "Ilhabela-inverso"0.8579
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Predominantly Upwind599.11.0015
Predominantly Downwind566.51.0591
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low743.20.8073
TriNum AP Med549.51.0919
TriNum AP High476.51.2593
TriNum W/L Low1009.50.5943
TriNum W/L Med686.50.8740
TriNum W/L Hig578.31.0376
Predom. Upwind626.60.9575
Predom. Reaching551.51.0880
Predom. Downwind594.01.0101
Predom. Up Low913.80.6566
Predom. Up L/M676.30.8872
Predom. Up Med575.41.0428
Predom. Up M/H520.61.1526
Predom. Up High502.01.1953
Predom. Dn Low900.60.6662
Predom. Dn L/M650.30.9227
Predom. Dn Med542.51.1059
Predom. Dn M/H479.31.2519
Predom. Dn High446.41.3442
Predom. Rc Low804.50.7458
Predom. Rc L/M594.21.0097
Predom. Rc Med507.41.1824
Predom. Rc M/H459.61.3054
Predom. Rc High436.51.3745
SA/DSPL Upwind18.41SA/DSPL Downwind31.85
Scoring OptionTODTOT
5B W/L Low1135.00.5287
5B W/L L/M814.40.7367
5B W/L Med671.50.8935
5B W/L M/H588.21.0201
5B W/L High556.01.0792
W/L 60-40 Low1143.80.5246
W/L 60-40 L/M824.90.7273
W/L 60-40 Med683.20.8782
W/L 60-40 M/H601.70.9972
W/L 60-40 High572.81.0474
5B AP Low824.90.7274
5B AP L/M637.20.9416
5B AP Med539.61.1120
5B AP M/H483.71.2404
5B AP High459.11.3068
5B SF Bay Low974.40.6158
5B SF Bay L/M777.60.7716
5B SF Bay Med645.30.9299
5B SF Bay M/H569.21.0542
5B SF Bay High540.01.1111
Chicago-Mac Upwind0.9201
Chicago-Mac All Purpose0.9484
Chicago-Mac Downwind0.9695
BayMac Cove Island892.20.6725
BayMac Shore886.10.6771
Harvest Moon474.71.2638
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance604.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating604.90.9919
FinRating, kevyt tuuli1114.10.8976
FinRating, kova tuuli462.61.0809
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9919
Triple Number Coastal/Long Distance Low0.8073
Triple Number Coastal/Long Distance Medium1.0920
Triple Number Coastal/Long Distance High1.2593
Triple Number Windward/Leeward Low0.6220
Triple Number Windward/Leeward Medium0.8740
Triple Number Windward/Leeward High1.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
For information
General Purpose Handicap (GPH)627.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low743.2
Triple Number Coastal/Long Distance Medium549.5
Triple Number Coastal/Long Distance High476.5
Triple Number Windward/Leeward Low964.6
Triple Number Windward/Leeward Medium686.5
Triple Number Windward/Leeward High578.3
Predominantly Upwind599.1
Predominantly Downwind566.5
Predominantly Reaching538.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8073
Triple Number Coastal/Long Distance Medium1.0920
Triple Number Coastal/Long Distance High1.2593
Triple Number Windward/Leeward Low0.6220
Triple Number Windward/Leeward Medium0.8740
Triple Number Windward/Leeward High1.0376
Coastal/Long Distance0.9919
Predominantly Upwind1.0015
Predominantly Downwind1.0591
For information
General Purpose Handicap (GPH)627.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0854
Distanseseilas Trippeltall svak vind0.8073
Distanseseilas Trippeltall mellomvind1.0920
Distanseseilas Trippeltall sterk vind1.2593
Pølsebane Trippeltall svak vind0.6220
Pølsebane Trippeltall mellomvind0.8740
Pølsebane Trippeltall sterk vind1.0376
Motvind Singeltall1.0015
Medvind Singeltall1.0591
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Coastal/Long Distance604.90.9919
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind599.11.0015
Predominantly Downwind566.51.0591
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore544.11.1027
Cape Doctor Coastal448.21.3388
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8073
Triple Number Coastal/Long Distance Medium1.0920
Triple Number Coastal/Long Distance High1.2593
Triple Number Windward/Leeward Low0.6220
Triple Number Windward/Leeward Medium0.8740
Triple Number Windward/Leeward High1.0376
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8073
Triple Number Coastal/Long Distance Medium1.0920
Triple Number Coastal/Long Distance High1.2593
Triple Number Windward/Leeward Low0.6220
Triple Number Windward/Leeward Medium0.8740
Triple Number Windward/Leeward High1.0376
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Predominantly Upwind599.11.0015
Predominantly Downwind566.51.0591
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance604.90.9919
Triple Number Coastal/Long Distance Low743.20.8073
Triple Number Coastal/Long Distance Medium549.51.0920
Triple Number Coastal/Long Distance High476.51.2593
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium686.50.8740
Triple Number Windward/Leeward High578.31.0376
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1627.81071.3800.4655.8566.9518.4485.3439.5422.5
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low743.20.8073
TriNum AP Med549.51.0919
TriNum AP High476.51.2593
TriNum W/L Low1009.50.5943
TriNum W/L Med686.50.8740
TriNum W/L Hig578.31.0376
Predom. Upwind626.60.9575
Predom. Reaching551.51.0880
Predom. Downwind594.01.0101
Predom. Up Low913.80.6566
Predom. Up L/M676.30.8872
Predom. Up Med575.41.0428
Predom. Up M/H520.61.1526
Predom. Up High502.01.1953
Predom. Dn Low900.60.6662
Predom. Dn L/M650.30.9227
Predom. Dn Med542.51.1059
Predom. Dn M/H479.31.2519
Predom. Dn High446.41.3442
Predom. Rc Low804.50.7458
Predom. Rc L/M594.21.0097
Predom. Rc Med507.41.1824
Predom. Rc M/H459.61.3054
Predom. Rc High436.51.3745
SA/DSPL Upwind18.41SA/DSPL Downwind31.85
Scoring OptionTODTOT
5B W/L Low1135.00.5287
5B W/L L/M814.40.7367
5B W/L Med671.50.8935
5B W/L M/H588.21.0201
5B W/L High556.01.0792
W/L 60-40 Low1143.80.5246
W/L 60-40 L/M824.90.7273
W/L 60-40 Med683.20.8782
W/L 60-40 M/H601.70.9972
W/L 60-40 High572.81.0474
5B AP Low824.90.7274
5B AP L/M637.20.9416
5B AP Med539.61.1120
5B AP M/H483.71.2404
5B AP High459.11.3068
5B SF Bay Low974.40.6158
5B SF Bay L/M777.60.7716
5B SF Bay Med645.30.9299
5B SF Bay M/H569.21.0542
5B SF Bay High540.01.1111
Chicago-Mac Upwind0.9201
Chicago-Mac All Purpose0.9484
Chicago-Mac Downwind0.9695
BayMac Cove Island892.20.6725
BayMac Shore886.10.6771
Harvest Moon474.71.2638
ORC Ref  03530003W4EIssued on 26/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MAXIMVSPOR 8540
Federação Portuguesa de Vela
Doca de Belém
1300-038 Lisboa, Portugal
fpvela.pt
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 425 GLMeasurement30/06/2011HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.600Max. Beam4.170Draft2.098Displacement8,813Wetted area33.63IMS L11.343LSM011.112Acc. length12.600Sink (kg/mm) 26.67
VCGD0.240VCGM0.196RM Rated (kg·m) 236.6Limit of positive stability(°) N/AStability IndexN/ADefault crew weight800Declared crew weightN/A
PROPELLER
Propeller TypeFeathering 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRDPBW
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P13.680IG14.700ISP15.210MDT10.135MDL10.240MDT2MDL2TLMWGO
E4.700J4.750BAS1.530FSDSFJ0.150SPLWPLTPS4.900BD0.130MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2022
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03530003W4EIssued on 26/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MAXIMVSPOR 8540
Federação Portuguesa de Vela
Doca de Belém
1300-038 Lisboa, Portugal
fpvela.pt
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.060.731.432.693.7535.0330/06/2011
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.050.701.432.994.756.6314.03NoNo 44.0830/06/2011
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment115.2514.0014.638.079.5085%101.8430/06/2011
CRUISER/RACER REQUIREMENTS*
Accommodation length12.6 mTable area0.55 m²Headroom1.84 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity165 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity102 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03530003W4EIssued on 26/07/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org