Club Certificate2025
HebbesNED 7873
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 Angles42.6°42.6°40.7°40.1°39.0°38.2°37.8°37.4°38.4°
Beat VMG2.483.364.024.474.704.824.904.994.93
52°3.825.095.956.476.686.806.886.987.00
60°4.055.366.206.666.907.037.127.247.29
75°4.205.546.386.837.167.387.527.737.84
90°4.335.716.597.077.367.627.918.288.51
110°4.225.676.687.277.768.148.529.119.49
120°4.045.526.607.237.838.378.849.7410.62
135°3.474.926.116.887.498.128.7910.3511.96
150°2.904.145.256.216.867.387.939.1811.11
Run VMG2.513.594.555.375.976.426.877.959.62
Gybe Angles143.0°143.0°147.6°149.4°153.0°155.0°152.5°146.5°143.4°
APH ToD:574.0CDL: 8.200APH ToT: 1.0453CertNo:None
BOAT
ClassOne OffDesignerK. de RidderBuilderJ. Velsen PartnersAge date07/2008Series date01/2008Offset filecr850155.offData fileNED7873
HULL
Length Overall9.150 mMaximum Beam3.002 mDraft2.183 mDisplacement2,812 kgDLR4.4397IMS DivisionCruiser/RacerDynamic Allowance0.140%Age Allowance0.487%
PROPELLER
InstallationIn ApertureTypeFolding 2 bladesDiameter0.375m
CREW
Maximum weight425 kg(declared)Minimum weight295 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail32.9734.33Headsail Luffed20.3720.37Headsail FlyingSymmetricAsymmetric74.8974.89 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail8.00Storm Jib6.53Heavy Weather Jib17.61
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
HebbesNED 7873
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 VMG1449.91070.5896.6804.7766.1746.7734.6721.9729.6
52°941.7707.2605.2556.6538.8529.5523.3515.6514.6
60°889.9672.2580.7540.7521.8512.4505.7497.1494.0
75°856.1649.5564.2527.2503.1487.9478.5465.5459.4
90°831.8630.3546.2509.1489.0472.2455.0434.8422.9
110°853.6634.6539.0495.0463.6442.4422.5395.0379.4
120°891.2652.0545.3497.6460.0429.9407.3369.5339.1
135°1036.6731.7588.9523.3480.7443.3409.7347.9301.0
150°1240.5869.0685.6580.0524.7487.7454.2392.3323.9
Run VMG1433.01003.4791.7669.8603.4560.7523.7453.0374.0
Selected Courses
Windward / Leeward1439.81037.0844.1737.3684.7653.7629.1587.5551.8
All purpose1090.0797.1662.1593.2557.0533.3513.9483.0460.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward712.20.8425
All purpose574.01.0453
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7316
Downwind "popa"0.9119
70% up, 30% down "Ilhabela"0.7777
30% up, 70% down "Ilhabela-inverso"0.8491
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Predominantly Upwind628.50.9546
Predominantly Downwind575.91.0419
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low729.60.8223
Triple Number AP Medium572.01.0490
Triple Number AP High507.21.1830
Triple Number Windward/Leeward Low979.90.6123
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Single Number Predominant Upwind650.40.9225
Single Number Predominant Reaching564.31.0632
Single Number Predominant Downwind598.31.0029
Predominant Upwind - Low879.20.6824
Predominant Upwind - Low/Med683.80.8775
Predominant Upwind - Medium610.20.9833
Predominant Upwind - Med/High570.01.0527
Predominant Upwind - High547.91.0950
Predominant Downwind Low871.20.6887
Predominant Downwind Low/Med650.20.9228
Predominant Downwind Medium557.71.0758
Predominant Downwind Med/High492.91.2173
Predominant Downwind High444.01.3515
Predominant Reaching Low774.50.7747
Predominant Reaching Low/Med600.50.9992
Predominant Reaching Medium531.91.1281
Predominant Reaching Med/High484.21.2391
Predominant Reaching High451.11.3302
SA/DSPL Upwind26.68SA/DSPL Downwind53.95
Scoring OptionTODTOT
5-Band Windward/Leeward Low1089.90.5505
5-Band Windward/Leeward Low/Med811.30.7395
5-Band Windward/Leeward Medium696.90.8610
5-Band Windward/Leeward Med/High630.90.9510
5-Band Windward/Leeward High588.51.0195
Windward/Leeward 60-40 Low1096.30.5473
Windward/Leeward 60-40 Low/Med823.20.7289
Windward/Leeward 60-40 Medium713.00.8416
Windward/Leeward 60-40 Med/High652.20.9200
Windward/Leeward 60-40 High615.90.9742
5-Band AP Low800.20.7498
5-Band AP Low/Med642.20.9343
5-Band AP Medium564.21.0635
5-Band AP Med/High515.61.1636
5-Band AP High484.41.2386
5-Band SF Bay Tour - Low943.90.6356
5-Band SF Bay Tour - Low/Med776.20.7730
5-Band SF Bay Tour - Medium671.20.8939
5-Band SF Bay Tour - Med/High610.20.9833
5-Band SF Bay Tour - High571.71.0496
Chicago-Mac Upwind0.8954
Chicago-Mac All Purpose0.9327
Chicago-Mac Downwind0.9651
Bayview-Mac Cove Island0.6885
Bayview-Mac Shore0.6936
Harvest Moon Regatta489.51.2258
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance625.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating625.50.9593
FinRating, kevyt tuuli1067.00.9372
FinRating, kova tuuli485.41.0300
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9593
Triple Number Coastal/Long Distance Low0.8223
Triple Number Coastal/Long Distance Medium1.0491
Triple Number Coastal/Long Distance High1.1830
Triple Number Windward/Leeward Low0.6379
Triple Number Windward/Leeward Medium0.8477
Triple Number Windward/Leeward High0.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
For information
General Purpose Handicap (GPH)642.5
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low729.7
Triple Number Coastal/Long Distance Medium571.9
Triple Number Coastal/Long Distance High507.2
Triple Number Windward/Leeward Low940.6
Triple Number Windward/Leeward Medium707.8
Triple Number Windward/Leeward High619.6
Predominantly Upwind628.5
Predominantly Downwind575.9
Predominantly Reaching552.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8223
Triple Number Coastal/Long Distance Medium1.0491
Triple Number Coastal/Long Distance High1.1830
Triple Number Windward/Leeward Low0.6379
Triple Number Windward/Leeward Medium0.8477
Triple Number Windward/Leeward High0.9683
Coastal/Long Distance0.9593
Predominantly Upwind0.9546
Predominantly Downwind1.0419
For information
General Purpose Handicap (GPH)642.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0453
Distanseseilas Trippeltall svak vind0.8223
Distanseseilas Trippeltall mellomvind1.0491
Distanseseilas Trippeltall sterk vind1.1830
Pølsebane Trippeltall svak vind0.6379
Pølsebane Trippeltall mellomvind0.8477
Pølsebane Trippeltall sterk vind0.9683
Motvind Singeltall0.9546
Medvind Singeltall1.0419
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Coastal/Long Distance625.50.9593
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind628.50.9546
Predominantly Downwind575.91.0419
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore562.51.0667
Cape Doctor Coastal467.01.2848
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8223
Triple Number Coastal/Long Distance Medium1.0491
Triple Number Coastal/Long Distance High1.1830
Triple Number Windward/Leeward Low0.6379
Triple Number Windward/Leeward Medium0.8477
Triple Number Windward/Leeward High0.9683
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8223
Triple Number Coastal/Long Distance Medium1.0491
Triple Number Coastal/Long Distance High1.1830
Triple Number Windward/Leeward Low0.6379
Triple Number Windward/Leeward Medium0.8477
Triple Number Windward/Leeward High0.9683
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Predominantly Upwind628.50.9546
Predominantly Downwind575.91.0419
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance625.50.9593
Triple Number Coastal/Long Distance Low729.70.8223
Triple Number Coastal/Long Distance Medium571.91.0491
Triple Number Coastal/Long Distance High507.21.1830
Triple Number Windward/Leeward Low940.60.6379
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.61033.6793.2665.9595.2553.8518.3460.3435.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low729.60.8223
Triple Number AP Medium572.01.0490
Triple Number AP High507.21.1830
Triple Number Windward/Leeward Low979.90.6123
Triple Number Windward/Leeward Medium707.80.8477
Triple Number Windward/Leeward High619.60.9683
Single Number Predominant Upwind650.40.9225
Single Number Predominant Reaching564.31.0632
Single Number Predominant Downwind598.31.0029
Predominant Upwind - Low879.20.6824
Predominant Upwind - Low/Med683.80.8775
Predominant Upwind - Medium610.20.9833
Predominant Upwind - Med/High570.01.0527
Predominant Upwind - High547.91.0950
Predominant Downwind Low871.20.6887
Predominant Downwind Low/Med650.20.9228
Predominant Downwind Medium557.71.0758
Predominant Downwind Med/High492.91.2173
Predominant Downwind High444.01.3515
Predominant Reaching Low774.50.7747
Predominant Reaching Low/Med600.50.9992
Predominant Reaching Medium531.91.1281
Predominant Reaching Med/High484.21.2391
Predominant Reaching High451.11.3302
SA/DSPL Upwind26.68SA/DSPL Downwind53.95
Scoring OptionTODTOT
5-Band Windward/Leeward Low1089.90.5505
5-Band Windward/Leeward Low/Med811.30.7395
5-Band Windward/Leeward Medium696.90.8610
5-Band Windward/Leeward Med/High630.90.9510
5-Band Windward/Leeward High588.51.0195
Windward/Leeward 60-40 Low1096.30.5473
Windward/Leeward 60-40 Low/Med823.20.7289
Windward/Leeward 60-40 Medium713.00.8416
Windward/Leeward 60-40 Med/High652.20.9200
Windward/Leeward 60-40 High615.90.9742
5-Band AP Low800.20.7498
5-Band AP Low/Med642.20.9343
5-Band AP Medium564.21.0635
5-Band AP Med/High515.61.1636
5-Band AP High484.41.2386
5-Band SF Bay Tour - Low943.90.6356
5-Band SF Bay Tour - Low/Med776.20.7730
5-Band SF Bay Tour - Medium671.20.8939
5-Band SF Bay Tour - Med/High610.20.9833
5-Band SF Bay Tour - High571.71.0496
Chicago-Mac Upwind0.8954
Chicago-Mac All Purpose0.9327
Chicago-Mac Downwind0.9651
Bayview-Mac Cove Island0.6885
Bayview-Mac Shore0.6936
Harvest Moon Regatta489.51.2258
Club Certificate2025
HebbesNED 7873
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassOne OffMeasurement12/10/2008HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.150Max. Beam3.002Draft2.183Displacement2,812Wetted area18.62IMS L8.800LSM08.587Acc. length9.150Sink (kg/mm) 14.13
VCGD-0.021VCGM-0.023RM Rated (kg·m) 67.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight554Declared crew weight425
PROPELLER
Propeller TypeFolding 2 blades
InstallationIn ApertureTwin screwNoHydro generatorNo
PRD0.375PBWPIPA0.0068
APHAPTAPB
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders2Rotating mastNo
P11.030IG11.420ISP12.520MDT10.080MDL10.160MDT2MDL2TLTaperMWGO
E4.140J3.280BAS1.280FSDFoilSFJ0.000SPL0.000WPLTPS4.280BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date12/10/2008
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
HebbesNED 7873
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment011.241.562.253.173.9432.97
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20250.040.490.951.872.773.6311.00NoNo 20.37
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment0213.3211.7012.517.087.6093%74.890112.1511.2611.715.086.7575%52.81
CRUISER/RACER REQUIREMENTS*
Accommodation length9.2 mTable area0.44 m²Headroom1.64 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity64 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity34 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.