Club Certificate2025
J ansNED 7235
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 Angles43.2°43.2°40.8°39.3°38.2°37.5°37.3°37.1°38.1°
Beat VMG2.403.354.134.684.985.125.195.275.21
52°3.745.106.106.747.047.177.257.347.35
60°3.985.376.356.937.227.377.467.567.59
75°4.135.546.517.077.397.627.797.978.06
90°4.175.686.767.277.507.727.988.378.58
110°4.245.806.937.527.958.298.559.039.46
120°4.115.666.837.467.968.438.899.6310.41
135°3.615.086.307.127.658.178.7110.1512.64
150°2.984.285.436.407.107.568.008.9611.21
Run VMG2.583.704.705.546.176.617.007.779.71
Gybe Angles142.9°142.9°146.9°149.6°152.2°156.3°159.4°155.2°141.6°
APH ToD:555.1CDL: 9.086APH ToT: 1.0808CertNo:19856
BOAT
ClassJ-105DesignerR JohnstoneBuilderT.P.I.Age date01/2003Series date01/1992Offset filej105.offData fileNED7235
HULL
Length Overall10.570 mMaximum Beam3.344 mDraft2.021 mDisplacement4,174 kgDLR4.7975IMS DivisionPerformanceDynamic Allowance0.180%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.410m
CREW
Maximum weight385 kg(declared)Minimum weight255 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail32.9633.60Headsail Luffed24.5324.53Headsail FlyingSymmetricAsymmetric89.0289.02 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail9.79Storm Jib8.07Heavy Weather Jib21.77
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
J ansNED 7235
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 VMG1502.91074.3871.1768.8722.7703.8693.0683.4691.1
52°962.4706.3589.8534.3511.7502.0496.3490.6490.0
60°905.0671.0567.2519.8498.9488.3482.4475.9474.4
75°872.1650.1553.1509.5487.0472.3462.2451.7446.7
90°864.1633.8532.5495.4479.8466.5450.9430.1419.5
110°848.2620.2519.2478.6452.6434.0421.1398.7380.4
120°876.8635.7527.3482.3452.2426.9405.1373.7345.9
135°997.5708.1571.5505.8470.4440.5413.4354.8284.9
150°1206.5841.8662.9562.3507.1476.1450.0401.9321.1
Run VMG1393.5972.0765.4649.3583.5544.5514.2463.4370.7
Selected Courses
Windward / Leeward1447.91023.2818.3709.0653.1624.1603.6573.4530.9
All purpose1097.4788.0643.0571.8535.7514.4498.2473.1445.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward684.60.8764
All purpose555.11.0808
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7613
Downwind "popa"0.9349
70% up, 30% down "Ilhabela"0.8062
30% up, 70% down "Ilhabela-inverso"0.8750
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Predominantly Upwind604.30.9929
Predominantly Downwind559.81.0718
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low715.50.8386
Triple Number AP Medium551.41.0881
Triple Number AP High492.91.2174
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Single Number Predominant Upwind630.10.9523
Single Number Predominant Reaching551.61.0878
Single Number Predominant Downwind583.31.0286
Predominant Upwind - Low877.90.6835
Predominant Upwind - Low/Med663.70.9041
Predominant Upwind - Medium584.61.0263
Predominant Upwind - Med/High546.41.0980
Predominant Upwind - High526.81.1389
Predominant Downwind Low853.90.7027
Predominant Downwind Low/Med630.90.9510
Predominant Downwind Medium541.01.1092
Predominant Downwind Med/High483.91.2398
Predominant Downwind High439.71.3646
Predominant Reaching Low768.00.7813
Predominant Reaching Low/Med584.41.0267
Predominant Reaching Medium516.31.1621
Predominant Reaching Med/High474.11.2655
Predominant Reaching High442.81.3551
SA/DSPL Upwind22.07SA/DSPL Downwind46.83
Scoring OptionTODTOT
5-Band Windward/Leeward Low1078.20.5565
5-Band Windward/Leeward Low/Med785.60.7638
5-Band Windward/Leeward Medium667.20.8993
5-Band Windward/Leeward Med/High606.10.9899
5-Band Windward/Leeward High571.31.0503
Windward/Leeward 60-40 Low1088.70.5511
Windward/Leeward 60-40 Low/Med797.10.7528
Windward/Leeward 60-40 Medium681.20.8808
Windward/Leeward 60-40 Med/High624.00.9615
Windward/Leeward 60-40 High594.31.0096
5-Band AP Low790.40.7591
5-Band AP Low/Med623.40.9625
5-Band AP Medium543.91.1031
5-Band AP Med/High499.91.2003
5-Band AP High472.71.2693
5-Band SF Bay Tour - Low929.20.6457
5-Band SF Bay Tour - Low/Med751.70.7982
5-Band SF Bay Tour - Medium643.00.9331
5-Band SF Bay Tour - Med/High586.61.0228
5-Band SF Bay Tour - High554.01.0830
Chicago-Mac Upwind0.9235
Chicago-Mac All Purpose0.9595
Chicago-Mac Downwind0.9914
Bayview-Mac Cove Island0.6987
Bayview-Mac Shore0.7030
Harvest Moon Regatta480.61.2484
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance603.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9942
Triple Number Coastal/Long Distance Low0.8386
Triple Number Coastal/Long Distance Medium1.0882
Triple Number Coastal/Long Distance High1.2174
Triple Number Windward/Leeward Low0.6517
Triple Number Windward/Leeward Medium0.8846
Triple Number Windward/Leeward High1.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
For information
General Purpose Handicap (GPH)623.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low715.5
Triple Number Coastal/Long Distance Medium551.4
Triple Number Coastal/Long Distance High492.9
Triple Number Windward/Leeward Low920.7
Triple Number Windward/Leeward Medium678.3
Triple Number Windward/Leeward High597.4
Predominantly Upwind604.3
Predominantly Downwind559.8
Predominantly Reaching538.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8386
Triple Number Coastal/Long Distance Medium1.0882
Triple Number Coastal/Long Distance High1.2174
Triple Number Windward/Leeward Low0.6517
Triple Number Windward/Leeward Medium0.8846
Triple Number Windward/Leeward High1.0044
Coastal/Long Distance0.9942
Predominantly Upwind0.9929
Predominantly Downwind1.0718
For information
General Purpose Handicap (GPH)623.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0808
Distanseseilas Trippeltall svak vind0.8386
Distanseseilas Trippeltall mellomvind1.0882
Distanseseilas Trippeltall sterk vind1.2174
Pølsebane Trippeltall svak vind0.6517
Pølsebane Trippeltall mellomvind0.8846
Pølsebane Trippeltall sterk vind1.0044
Motvind Singeltall0.9929
Medvind Singeltall1.0718
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Coastal/Long Distance603.50.9942
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind604.30.9929
Predominantly Downwind559.81.0718
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore543.71.1036
Cape Doctor Coastal453.91.3218
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8386
Triple Number Coastal/Long Distance Medium1.0882
Triple Number Coastal/Long Distance High1.2174
Triple Number Windward/Leeward Low0.6517
Triple Number Windward/Leeward Medium0.8846
Triple Number Windward/Leeward High1.0044
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8386
Triple Number Coastal/Long Distance Medium1.0882
Triple Number Coastal/Long Distance High1.2174
Triple Number Windward/Leeward Low0.6517
Triple Number Windward/Leeward Medium0.8846
Triple Number Windward/Leeward High1.0044
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Predominantly Upwind604.30.9929
Predominantly Downwind559.81.0718
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance603.50.9942
Triple Number Coastal/Long Distance Low715.50.8386
Triple Number Coastal/Long Distance Medium551.41.0882
Triple Number Coastal/Long Distance High492.91.2174
Triple Number Windward/Leeward Low920.70.6517
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1530.61018.1769.1641.2571.1533.9502.7453.3427.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low715.50.8386
Triple Number AP Medium551.41.0881
Triple Number AP High492.91.2174
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High597.41.0044
Single Number Predominant Upwind630.10.9523
Single Number Predominant Reaching551.61.0878
Single Number Predominant Downwind583.31.0286
Predominant Upwind - Low877.90.6835
Predominant Upwind - Low/Med663.70.9041
Predominant Upwind - Medium584.61.0263
Predominant Upwind - Med/High546.41.0980
Predominant Upwind - High526.81.1389
Predominant Downwind Low853.90.7027
Predominant Downwind Low/Med630.90.9510
Predominant Downwind Medium541.01.1092
Predominant Downwind Med/High483.91.2398
Predominant Downwind High439.71.3646
Predominant Reaching Low768.00.7813
Predominant Reaching Low/Med584.41.0267
Predominant Reaching Medium516.31.1621
Predominant Reaching Med/High474.11.2655
Predominant Reaching High442.81.3551
SA/DSPL Upwind22.07SA/DSPL Downwind46.83
Scoring OptionTODTOT
5-Band Windward/Leeward Low1078.20.5565
5-Band Windward/Leeward Low/Med785.60.7638
5-Band Windward/Leeward Medium667.20.8993
5-Band Windward/Leeward Med/High606.10.9899
5-Band Windward/Leeward High571.31.0503
Windward/Leeward 60-40 Low1088.70.5511
Windward/Leeward 60-40 Low/Med797.10.7528
Windward/Leeward 60-40 Medium681.20.8808
Windward/Leeward 60-40 Med/High624.00.9615
Windward/Leeward 60-40 High594.31.0096
5-Band AP Low790.40.7591
5-Band AP Low/Med623.40.9625
5-Band AP Medium543.91.1031
5-Band AP Med/High499.91.2003
5-Band AP High472.71.2693
5-Band SF Bay Tour - Low929.20.6457
5-Band SF Bay Tour - Low/Med751.70.7982
5-Band SF Bay Tour - Medium643.00.9331
5-Band SF Bay Tour - Med/High586.61.0228
5-Band SF Bay Tour - High554.01.0830
Chicago-Mac Upwind0.9235
Chicago-Mac All Purpose0.9595
Chicago-Mac Downwind0.9914
Bayview-Mac Cove Island0.6987
Bayview-Mac Shore0.7030
Harvest Moon Regatta480.61.2484
Club Certificate2025
J ansNED 7235
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-105Measurement05/05/2004HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.570Max. Beam3.344Draft2.021Displacement4,174Wetted area23.28IMS L9.633LSM09.546Acc. length10.570Sink (kg/mm) 17.48
VCGD0.074VCGM0.041RM Rated (kg·m) 93.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight644Declared crew weight385
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.410PBW0.115PIPA0.0045
PSD0.025PHD0.070PHL0.115
PSA17.0°ESL0.900
ST10.020ST20.090ST30.090
ST40.049ST50.190
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P12.620IG12.620ISP12.800MDT10.100MDL10.180MDT20.100MDL20.105TL1.200MW0.165GO0.190
E4.430J4.110BAS1.550FSD0.028SFJ0.000SPL0.000WPLTPS5.800BD0.127MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered95.3Flotation Date05/05/2004
SFFP0.966FFM1.058FF1.073LCFcl5.871SG1.0000
SAFP10.056FAM0.742FA0.751LCFsh6.110HBI0.910
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
J ansNED 7235
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20240.140.891.632.833.7032.96
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20240.050.500.971.993.064.1112.10NoNo 24.53
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment202415.1012.0413.577.947.60104%89.02