Club Certificate2025
sJamaanNED 3501
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 Angles42.0°42.0°40.0°37.7°36.3°35.6°35.3°35.2°35.8°
Beat VMG2.743.744.505.015.245.365.435.485.46
52°4.245.626.516.957.167.267.327.397.38
60°4.505.876.687.077.297.427.497.587.61
75°4.646.006.777.167.427.627.767.928.02
90°4.465.856.707.157.457.717.938.258.45
110°4.085.596.687.247.617.928.188.568.81
120°3.945.426.527.157.577.968.328.999.53
135°3.474.876.036.837.327.738.149.0610.55
150°2.884.145.286.236.917.357.738.529.57
Run VMG2.493.594.585.426.126.697.127.838.56
Gybe Angles145.6°145.6°149.6°153.2°159.4°166.4°173.2°176.8°170.9°
APH ToD:551.1CDL: 9.363APH ToT: 1.0887CertNo:
BOAT
ClassJ-35DesignerJohnstoneBuilderJ-boatsAge date01/1989Series date01/1983Offset filej35.offData fileNED3501
HULL
Length Overall10.820 mMaximum Beam3.646 mDraft2.126 mDisplacement4,722 kgDLR6.6483IMS DivisionCruiser/RacerDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameterm
CREW
Maximum weight680 kg(declared)Minimum weight550 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail32.1432.73Headsail Luffed42.2742.27Headsail FlyingSymmetric85.8785.87Asymmetric
STORM SAIL AREAS (m²)
Trysail9.44Storm Jib10.16Heavy Weather Jib27.42
SAIL LIMITS
Headsails5Spinnakers4
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.
Club Certificate2025
sJamaanNED 3501
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 VMG1314.0962.6800.6719.1686.4671.6663.5656.5659.7
52°849.3640.7553.4518.2503.0496.0491.8487.4487.6
60°800.0613.4539.3509.2493.9485.5480.8475.1473.2
75°776.7600.1531.8502.8485.0472.5464.2454.8448.9
90°807.5615.3537.0503.5483.2467.1454.1436.2425.8
110°881.4644.2539.1497.6473.1454.6440.2420.8408.7
120°912.8664.2551.9503.3475.3452.2433.0400.5377.8
135°1038.0738.6596.8527.2491.9465.8442.4397.6341.2
150°1250.8868.8681.5577.6521.0489.9465.6422.4376.0
Run VMG1444.11003.2786.9664.3588.2538.5505.7459.5420.5
Selected Courses
Windward / Leeward1377.4982.9793.7691.7637.3605.1584.6558.0540.1
All purpose1044.8761.7631.4567.4533.7513.0498.4476.9459.8
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward665.40.9017
All purpose551.11.0887
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8139
Downwind "popa"0.9238
70% up, 30% down "Ilhabela"0.8440
30% up, 70% down "Ilhabela-inverso"0.8879
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Predominantly Upwind588.31.0199
Predominantly Downwind565.11.0617
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low696.60.8614
Triple Number AP Medium548.01.0950
Triple Number AP High494.01.2146
Triple Number Windward/Leeward Low927.20.6471
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Single Number Predominant Upwind609.60.9843
Single Number Predominant Reaching551.81.0873
Single Number Predominant Downwind589.31.0182
Predominant Upwind - Low818.20.7333
Predominant Upwind - Low/Med637.60.9411
Predominant Upwind - Medium571.41.0500
Predominant Upwind - Med/High538.41.1144
Predominant Upwind - High522.61.1480
Predominant Downwind Low854.70.7020
Predominant Downwind Low/Med636.90.9420
Predominant Downwind Medium546.51.0979
Predominant Downwind Med/High489.71.2252
Predominant Downwind High453.91.3218
Predominant Reaching Low748.80.8013
Predominant Reaching Low/Med583.01.0291
Predominant Reaching Medium519.41.1553
Predominant Reaching Med/High480.01.2501
Predominant Reaching High454.41.3204
SA/DSPL Upwind26.30SA/DSPL Downwind41.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1034.60.5799
5-Band Windward/Leeward Low/Med762.50.7869
5-Band Windward/Leeward Medium649.50.9237
5-Band Windward/Leeward Med/High588.01.0205
5-Band Windward/Leeward High559.51.0724
Windward/Leeward 60-40 Low1029.70.5827
Windward/Leeward 60-40 Low/Med765.80.7835
Windward/Leeward 60-40 Medium659.00.9105
Windward/Leeward 60-40 Med/High603.50.9942
Windward/Leeward 60-40 High579.31.0358
5-Band AP Low772.40.7768
5-Band AP Low/Med613.60.9778
5-Band AP Medium541.01.1090
5-Band AP Med/High500.21.1995
5-Band AP High477.71.2561
5-Band SF Bay Tour - Low891.40.6731
5-Band SF Bay Tour - Low/Med729.00.8230
5-Band SF Bay Tour - Medium628.30.9549
5-Band SF Bay Tour - Med/High574.71.0440
5-Band SF Bay Tour - High548.11.0947
Chicago-Mac Upwind0.9576
Chicago-Mac All Purpose0.9732
Chicago-Mac Downwind0.9825
Bayview-Mac Cove Island0.7228
Bayview-Mac Shore0.7289
Harvest Moon Regatta487.71.2302
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance596.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0057
Triple Number Coastal/Long Distance Low0.8614
Triple Number Coastal/Long Distance Medium1.0951
Triple Number Coastal/Long Distance High1.2146
Triple Number Windward/Leeward Low0.6755
Triple Number Windward/Leeward Medium0.9085
Triple Number Windward/Leeward High1.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
For information
General Purpose Handicap (GPH)616.0
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low696.5
Triple Number Coastal/Long Distance Medium547.9
Triple Number Coastal/Long Distance High494.0
Triple Number Windward/Leeward Low888.2
Triple Number Windward/Leeward Medium660.4
Triple Number Windward/Leeward High579.7
Predominantly Upwind588.3
Predominantly Downwind565.1
Predominantly Reaching542.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8614
Triple Number Coastal/Long Distance Medium1.0951
Triple Number Coastal/Long Distance High1.2146
Triple Number Windward/Leeward Low0.6755
Triple Number Windward/Leeward Medium0.9085
Triple Number Windward/Leeward High1.0350
Coastal/Long Distance1.0057
Predominantly Upwind1.0199
Predominantly Downwind1.0617
For information
General Purpose Handicap (GPH)616.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0887
Distanseseilas Trippeltall svak vind0.8614
Distanseseilas Trippeltall mellomvind1.0951
Distanseseilas Trippeltall sterk vind1.2146
Pølsebane Trippeltall svak vind0.6755
Pølsebane Trippeltall mellomvind0.9085
Pølsebane Trippeltall sterk vind1.0350
Motvind Singeltall1.0199
Medvind Singeltall1.0617
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Coastal/Long Distance596.61.0057
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind588.31.0199
Predominantly Downwind565.11.0617
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore545.51.0999
Cape Doctor Coastal464.91.2905
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8614
Triple Number Coastal/Long Distance Medium1.0951
Triple Number Coastal/Long Distance High1.2146
Triple Number Windward/Leeward Low0.6755
Triple Number Windward/Leeward Medium0.9085
Triple Number Windward/Leeward High1.0350
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8614
Triple Number Coastal/Long Distance Medium1.0951
Triple Number Coastal/Long Distance High1.2146
Triple Number Windward/Leeward Low0.6755
Triple Number Windward/Leeward Medium0.9085
Triple Number Windward/Leeward High1.0350
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Predominantly Upwind588.31.0199
Predominantly Downwind565.11.0617
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance596.61.0057
Triple Number Coastal/Long Distance Low696.50.8614
Triple Number Coastal/Long Distance Medium547.91.0951
Triple Number Coastal/Long Distance High494.01.2146
Triple Number Windward/Leeward Low888.20.6755
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1468.2984.9750.5631.2566.0531.2504.0460.0443.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low696.60.8614
Triple Number AP Medium548.01.0950
Triple Number AP High494.01.2146
Triple Number Windward/Leeward Low927.20.6471
Triple Number Windward/Leeward Medium660.40.9085
Triple Number Windward/Leeward High579.71.0350
Single Number Predominant Upwind609.60.9843
Single Number Predominant Reaching551.81.0873
Single Number Predominant Downwind589.31.0182
Predominant Upwind - Low818.20.7333
Predominant Upwind - Low/Med637.60.9411
Predominant Upwind - Medium571.41.0500
Predominant Upwind - Med/High538.41.1144
Predominant Upwind - High522.61.1480
Predominant Downwind Low854.70.7020
Predominant Downwind Low/Med636.90.9420
Predominant Downwind Medium546.51.0979
Predominant Downwind Med/High489.71.2252
Predominant Downwind High453.91.3218
Predominant Reaching Low748.80.8013
Predominant Reaching Low/Med583.01.0291
Predominant Reaching Medium519.41.1553
Predominant Reaching Med/High480.01.2501
Predominant Reaching High454.41.3204
SA/DSPL Upwind26.30SA/DSPL Downwind41.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1034.60.5799
5-Band Windward/Leeward Low/Med762.50.7869
5-Band Windward/Leeward Medium649.50.9237
5-Band Windward/Leeward Med/High588.01.0205
5-Band Windward/Leeward High559.51.0724
Windward/Leeward 60-40 Low1029.70.5827
Windward/Leeward 60-40 Low/Med765.80.7835
Windward/Leeward 60-40 Medium659.00.9105
Windward/Leeward 60-40 Med/High603.50.9942
Windward/Leeward 60-40 High579.31.0358
5-Band AP Low772.40.7768
5-Band AP Low/Med613.60.9778
5-Band AP Medium541.01.1090
5-Band AP Med/High500.21.1995
5-Band AP High477.71.2561
5-Band SF Bay Tour - Low891.40.6731
5-Band SF Bay Tour - Low/Med729.00.8230
5-Band SF Bay Tour - Medium628.30.9549
5-Band SF Bay Tour - Med/High574.71.0440
5-Band SF Bay Tour - High548.11.0947
Chicago-Mac Upwind0.9576
Chicago-Mac All Purpose0.9732
Chicago-Mac Downwind0.9825
Bayview-Mac Cove Island0.7228
Bayview-Mac Shore0.7289
Harvest Moon Regatta487.71.2302
Club Certificate2025
sJamaanNED 3501
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-35Measurement25/10/2023HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.820Max. Beam3.646Draft2.126Displacement4,722Wetted area23.60IMS L9.260LSM08.921Acc. length10.820Sink (kg/mm) 17.52
VCGD-0.006VCGM0.053RM Rated (kg·m) 111.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight585Declared crew weight680
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRDPBW
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders2Rotating mastNo
P12.650IG14.250ISP14.300MDT10.105MDL10.188MDT2MDL2TLNo TaperMWGO
E4.260J4.460BAS1.480FSDSFJ0.000SPL4.571WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date25/10/2023
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
sJamaanNED 3501
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.881.612.7132.14
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.731.422.896.1913.92NoNo 42.27
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentestimated14.0014.0014.007.407.2085.87
CRUISER/RACER REQUIREMENTS*
Accommodation length10.8 mTable area0.55 m²Headroom1.75 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity120 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity66 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.