Club Certificate2025
Just Plane SailingNED 776
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 Angles43.1°43.1°41.0°39.3°37.4°36.7°36.3°36.1°36.7°
Beat VMG2.453.394.134.685.045.235.325.405.39
52°3.815.156.106.687.007.177.277.377.40
60°4.045.416.336.857.147.337.457.577.62
75°4.185.566.476.977.277.517.697.928.04
90°3.995.456.527.077.347.557.798.198.47
110°4.075.586.677.247.617.918.168.538.79
120°3.935.426.537.177.597.988.338.999.53
135°3.464.876.056.867.357.788.199.1510.78
150°2.864.125.266.246.947.387.778.599.72
Run VMG2.473.574.565.416.146.707.137.868.61
Gybe Angles145.3°145.3°149.6°152.1°159.0°166.0°171.8°175.4°167.3°
APH ToD:562.5CDL: 9.001APH ToT: 1.0668CertNo:
BOAT
ClassJ-35DesignerJohnstoneBuilderTillotson PearsonAge date01/1991Series date05/1983Offset fileJ35.offData fileNED776
HULL
Length Overall10.820 mMaximum Beam3.646 mDraft2.127 mDisplacement4,744 kgDLR6.6602IMS DivisionCruiser/RacerDynamic Allowance0.180%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 2 bladesDiameter0.406m
CREW
Maximum weight586 kg(default)Minimum weight456 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail30.6831.17Headsail Luffed30.4530.45Headsail FlyingSymmetric96.1896.18Asymmetric
STORM SAIL AREAS (m²)
Trysail9.19Storm Jib10.02Heavy Weather Jib27.06
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
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
Just Plane SailingNED 776
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 VMG1470.51062.8871.0769.5713.6688.5676.6666.4667.6
52°944.6699.4590.1538.9514.3501.8495.2488.6486.8
60°890.3665.8568.7525.8504.1491.2483.2475.4472.4
75°861.8647.6556.3516.6495.0479.6468.2454.8447.8
90°901.5660.0552.3509.0490.6477.0462.2439.6425.3
110°884.0645.4539.4497.5473.2454.9441.0421.8409.5
120°915.4664.5551.0502.4474.2451.3432.0400.4377.9
135°1040.9738.7595.3524.7489.5463.0439.4393.6334.0
150°1259.2873.8684.2577.4518.9487.7463.1419.0370.4
Run VMG1455.21009.0790.1665.5586.4537.4504.9458.2418.1
Selected Courses
Windward / Leeward1461.91035.9830.6717.5650.0613.0590.7562.3542.9
All purpose1111.8800.8655.4582.4541.9518.4502.1478.6459.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward683.10.8783
All purpose562.51.0668
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7709
Downwind "popa"0.9228
70% up, 30% down "Ilhabela"0.8109
30% up, 70% down "Ilhabela-inverso"0.8713
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Predominantly Upwind607.30.9879
Predominantly Downwind571.31.0502
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low728.10.8240
Triple Number AP Medium559.01.0733
Triple Number AP High497.41.2063
Triple Number Windward/Leeward Low974.90.6155
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Single Number Predominant Upwind632.30.9489
Single Number Predominant Reaching564.11.0636
Single Number Predominant Downwind596.61.0056
Predominant Upwind - Low881.60.6806
Predominant Upwind - Low/Med669.80.8958
Predominant Upwind - Medium587.11.0220
Predominant Upwind - Med/High545.11.1006
Predominant Upwind - High526.21.1402
Predominant Downwind Low879.80.6820
Predominant Downwind Low/Med647.50.9266
Predominant Downwind Medium550.71.0896
Predominant Downwind Med/High491.11.2218
Predominant Downwind High453.51.3232
Predominant Reaching Low788.10.7614
Predominant Reaching Low/Med598.81.0020
Predominant Reaching Medium526.71.1392
Predominant Reaching Med/High483.81.2402
Predominant Reaching High455.41.3174
SA/DSPL Upwind21.54SA/DSPL Downwind44.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1091.30.5498
5-Band Windward/Leeward Low/Med794.30.7554
5-Band Windward/Leeward Medium665.20.9020
5-Band Windward/Leeward Med/High594.61.0090
5-Band Windward/Leeward High563.81.0641
Windward/Leeward 60-40 Low1096.40.5472
Windward/Leeward 60-40 Low/Med803.50.7468
Windward/Leeward 60-40 Medium677.90.8851
Windward/Leeward 60-40 Med/High611.70.9809
Windward/Leeward 60-40 High584.71.0261
5-Band AP Low806.40.7440
5-Band AP Low/Med634.30.9459
5-Band AP Medium550.81.0892
5-Band AP Med/High504.21.1899
5-Band AP High479.51.2514
5-Band SF Bay Tour - Low940.30.6381
5-Band SF Bay Tour - Low/Med760.40.7890
5-Band SF Bay Tour - Medium643.80.9320
5-Band SF Bay Tour - Med/High581.11.0325
5-Band SF Bay Tour - High552.01.0869
Chicago-Mac Upwind0.9187
Chicago-Mac All Purpose0.9460
Chicago-Mac Downwind0.9688
Bayview-Mac Cove Island0.6895
Bayview-Mac Shore0.6941
Harvest Moon Regatta493.31.2162
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance610.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating610.30.9831
FinRating, kevyt tuuli1073.30.9317
FinRating, kova tuuli482.31.0366
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9831
Triple Number Coastal/Long Distance Low0.8240
Triple Number Coastal/Long Distance Medium1.0734
Triple Number Coastal/Long Distance High1.2063
Triple Number Windward/Leeward Low0.6429
Triple Number Windward/Leeward Medium0.8846
Triple Number Windward/Leeward High1.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
For information
General Purpose Handicap (GPH)632.5
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low728.2
Triple Number Coastal/Long Distance Medium559.0
Triple Number Coastal/Long Distance High497.4
Triple Number Windward/Leeward Low933.3
Triple Number Windward/Leeward Medium678.3
Triple Number Windward/Leeward High585.6
Predominantly Upwind607.3
Predominantly Downwind571.3
Predominantly Reaching550.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8240
Triple Number Coastal/Long Distance Medium1.0734
Triple Number Coastal/Long Distance High1.2063
Triple Number Windward/Leeward Low0.6429
Triple Number Windward/Leeward Medium0.8846
Triple Number Windward/Leeward High1.0246
Coastal/Long Distance0.9831
Predominantly Upwind0.9879
Predominantly Downwind1.0502
For information
General Purpose Handicap (GPH)632.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0668
Distanseseilas Trippeltall svak vind0.8240
Distanseseilas Trippeltall mellomvind1.0734
Distanseseilas Trippeltall sterk vind1.2063
Pølsebane Trippeltall svak vind0.6429
Pølsebane Trippeltall mellomvind0.8846
Pølsebane Trippeltall sterk vind1.0246
Motvind Singeltall0.9879
Medvind Singeltall1.0502
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Coastal/Long Distance610.30.9831
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind607.30.9879
Predominantly Downwind571.31.0502
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore548.71.0935
Cape Doctor Coastal465.51.2890
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8240
Triple Number Coastal/Long Distance Medium1.0734
Triple Number Coastal/Long Distance High1.2063
Triple Number Windward/Leeward Low0.6429
Triple Number Windward/Leeward Medium0.8846
Triple Number Windward/Leeward High1.0246
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8240
Triple Number Coastal/Long Distance Medium1.0734
Triple Number Coastal/Long Distance High1.2063
Triple Number Windward/Leeward Low0.6429
Triple Number Windward/Leeward Medium0.8846
Triple Number Windward/Leeward High1.0246
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Predominantly Upwind607.30.9879
Predominantly Downwind571.31.0502
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance610.30.9831
Triple Number Coastal/Long Distance Low728.20.8240
Triple Number Coastal/Long Distance Medium559.01.0734
Triple Number Coastal/Long Distance High497.41.2063
Triple Number Windward/Leeward Low933.30.6429
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1548.91033.2782.3651.1575.7537.0507.6461.2443.2
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low728.10.8240
Triple Number AP Medium559.01.0733
Triple Number AP High497.41.2063
Triple Number Windward/Leeward Low974.90.6155
Triple Number Windward/Leeward Medium678.30.8846
Triple Number Windward/Leeward High585.61.0246
Single Number Predominant Upwind632.30.9489
Single Number Predominant Reaching564.11.0636
Single Number Predominant Downwind596.61.0056
Predominant Upwind - Low881.60.6806
Predominant Upwind - Low/Med669.80.8958
Predominant Upwind - Medium587.11.0220
Predominant Upwind - Med/High545.11.1006
Predominant Upwind - High526.21.1402
Predominant Downwind Low879.80.6820
Predominant Downwind Low/Med647.50.9266
Predominant Downwind Medium550.71.0896
Predominant Downwind Med/High491.11.2218
Predominant Downwind High453.51.3232
Predominant Reaching Low788.10.7614
Predominant Reaching Low/Med598.81.0020
Predominant Reaching Medium526.71.1392
Predominant Reaching Med/High483.81.2402
Predominant Reaching High455.41.3174
SA/DSPL Upwind21.54SA/DSPL Downwind44.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1091.30.5498
5-Band Windward/Leeward Low/Med794.30.7554
5-Band Windward/Leeward Medium665.20.9020
5-Band Windward/Leeward Med/High594.61.0090
5-Band Windward/Leeward High563.81.0641
Windward/Leeward 60-40 Low1096.40.5472
Windward/Leeward 60-40 Low/Med803.50.7468
Windward/Leeward 60-40 Medium677.90.8851
Windward/Leeward 60-40 Med/High611.70.9809
Windward/Leeward 60-40 High584.71.0261
5-Band AP Low806.40.7440
5-Band AP Low/Med634.30.9459
5-Band AP Medium550.81.0892
5-Band AP Med/High504.21.1899
5-Band AP High479.51.2514
5-Band SF Bay Tour - Low940.30.6381
5-Band SF Bay Tour - Low/Med760.40.7890
5-Band SF Bay Tour - Medium643.80.9320
5-Band SF Bay Tour - Med/High581.11.0325
5-Band SF Bay Tour - High552.01.0869
Chicago-Mac Upwind0.9187
Chicago-Mac All Purpose0.9460
Chicago-Mac Downwind0.9688
Bayview-Mac Cove Island0.6895
Bayview-Mac Shore0.6941
Harvest Moon Regatta493.31.2162
Club Certificate2025
Just Plane SailingNED 776
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-35Measurement07/06/2024HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.820Max. Beam3.646Draft2.127Displacement4,744Wetted area23.63IMS L9.243LSM08.930Acc. length10.820Sink (kg/mm) 17.53
VCGD-0.114VCGM-0.057RM Rated (kg·m) 120.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight586Declared crew weightN/A
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.406PBW0.140PIPA0.0044
PSD0.025PHD0.070PHL0.220
PSA17.5°ESL0.765
ST10.022ST20.082ST30.082
ST40.045ST50.145
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders2Rotating mastNo
P12.550IG14.060ISP14.120MDT10.115MDL10.178MDT20.114MDL20.137TL2.090MW0.137GO0.167
E4.180J4.450BAS1.470FSD0.032SFJ0.000SPL4.559WPLTPSBD0.153MWT154.00MCG4.340
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered120.3Flotation Date07/02/2024
SFFP0.582FFM1.138FF1.139LCFcl6.099SG1.0220
SAFP10.519FAM0.870FA0.871LCFsh6.369HBI0.959
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Just Plane SailingNED 776
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20240.160.781.442.613.5730.68
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20240.060.571.092.173.264.3014.02NoNo 30.45
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment20240.0096.18
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.