Double HandedClub Certificate2025
J-ForceNOR 15774
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 Angles41.9°41.9°39.9°38.7°38.4°38.5°38.6°39.5°41.9°
Beat VMG2.643.604.274.574.694.744.774.724.48
52°4.065.396.236.556.676.746.786.806.66
60°4.295.636.436.746.886.957.017.057.00
75°4.455.806.586.937.157.297.397.517.55
90°4.455.776.556.997.307.567.768.038.19
110°4.636.046.867.247.547.818.068.518.98
120°4.525.976.897.417.818.158.489.169.86
135°3.855.386.577.277.888.519.2210.6112.14
150°3.204.545.696.607.287.868.5110.6914.01
Run VMG2.773.934.935.726.336.817.379.2612.13
Gybe Angles143.1°143.1°147.2°150.3°152.9°150.5°148.0°144.8°148.9°
APH ToD:563.1CDL: 8.009APH ToT: 1.0656CertNo:667244
BOAT
ClassJ/88DesignerJOHNSTONEBuilderJ Boats EuropeAge date01/2014Series date01/2013Offset fileJ-88.offData file667244
HULL
Length Overall8.960 mMaximum Beam2.854 mDraft1.972 mDisplacement2,489 kgDLR4.3329IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.390%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail26.7527.46Headsail Luffed20.5520.55Headsail FlyingSymmetricAsymmetric95.1695.16 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail7.20Storm Jib7.01Heavy Weather Jib18.91
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.
Double HandedClub Certificate2025
J-ForceNOR 15774
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 VMG1365.61001.3842.2787.7768.2759.8755.0762.1803.8
52°887.4668.2578.2550.0539.7534.2530.7529.1540.9
60°838.6639.1559.9534.0523.6517.6513.5510.4514.2
75°809.1621.0547.4519.5503.4494.0487.1479.2477.1
90°809.3623.5549.8515.0493.1476.3463.8448.5439.7
110°777.5596.0524.7497.4477.4460.9446.8422.8400.9
120°797.2603.3522.3485.6461.2441.9424.4393.2365.2
135°935.4669.4547.7495.0456.8423.3390.3339.3296.7
150°1125.5793.6633.0545.4494.3457.9423.1336.8256.9
Run VMG1300.1916.4730.9629.6568.8528.6488.6388.9296.7
Selected Courses
Windward / Leeward1332.3958.8786.6708.7668.5644.2621.8575.5550.2
All purpose1011.3745.5628.0577.9550.5531.9515.5486.6471.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward688.70.8712
All purpose563.11.0656
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7399
Downwind "popa"0.9878
70% up, 30% down "Ilhabela"0.8002
30% up, 70% down "Ilhabela-inverso"0.8976
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Predominantly Upwind616.90.9727
Predominantly Downwind551.21.0885
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low686.70.8737
Triple Number AP Medium561.51.0685
Triple Number AP High508.81.1793
Triple Number Windward/Leeward Low910.90.6587
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Single Number Predominant Upwind639.00.9390
Single Number Predominant Reaching551.51.0880
Single Number Predominant Downwind571.01.0507
Predominant Upwind - Low827.60.7250
Predominant Upwind - Low/Med658.70.9109
Predominant Upwind - Medium603.90.9936
Predominant Upwind - Med/High575.31.0429
Predominant Upwind - High562.61.0665
Predominant Downwind Low807.90.7426
Predominant Downwind Low/Med616.20.9738
Predominant Downwind Medium537.71.1159
Predominant Downwind Med/High477.91.2556
Predominant Downwind High428.11.4016
Predominant Reaching Low732.70.8189
Predominant Reaching Low/Med581.01.0327
Predominant Reaching Medium523.31.1467
Predominant Reaching Med/High482.21.2443
Predominant Reaching High454.61.3199
SA/DSPL Upwind25.68SA/DSPL Downwind66.17
Scoring OptionTODTOT
5-Band Windward/Leeward Low1009.30.5945
5-Band Windward/Leeward Low/Med767.00.7822
5-Band Windward/Leeward Medium677.00.8862
5-Band Windward/Leeward Med/High621.70.9651
5-Band Windward/Leeward High579.21.0360
Windward/Leeward 60-40 Low1017.90.5894
Windward/Leeward 60-40 Low/Med780.70.7685
Windward/Leeward 60-40 Medium696.60.8613
Windward/Leeward 60-40 Med/High649.00.9245
Windward/Leeward 60-40 High616.90.9725
5-Band AP Low748.60.8014
5-Band AP Low/Med616.20.9737
5-Band AP Medium555.51.0801
5-Band AP Med/High516.31.1620
5-Band AP High488.91.2273
5-Band SF Bay Tour - Low875.50.6853
5-Band SF Bay Tour - Low/Med735.70.8155
5-Band SF Bay Tour - Medium654.70.9165
5-Band SF Bay Tour - Med/High605.60.9907
5-Band SF Bay Tour - High571.01.0508
Chicago-Mac Upwind0.9167
Chicago-Mac All Purpose0.9649
Chicago-Mac Downwind1.0136
Bayview-Mac Cove Island0.7304
Bayview-Mac Shore0.7345
Harvest Moon Regatta483.81.2402
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance609.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating609.20.9849
FinRating, kevyt tuuli990.01.0101
FinRating, kova tuuli490.41.0197
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9849
Triple Number Coastal/Long Distance Low0.8737
Triple Number Coastal/Long Distance Medium1.0686
Triple Number Coastal/Long Distance High1.1793
Triple Number Windward/Leeward Low0.6875
Triple Number Windward/Leeward Medium0.8751
Triple Number Windward/Leeward High0.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
For information
General Purpose Handicap (GPH)623.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low686.7
Triple Number Coastal/Long Distance Medium561.5
Triple Number Coastal/Long Distance High508.8
Triple Number Windward/Leeward Low872.7
Triple Number Windward/Leeward Medium685.6
Triple Number Windward/Leeward High610.1
Predominantly Upwind616.9
Predominantly Downwind551.2
Predominantly Reaching536.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8737
Triple Number Coastal/Long Distance Medium1.0686
Triple Number Coastal/Long Distance High1.1793
Triple Number Windward/Leeward Low0.6875
Triple Number Windward/Leeward Medium0.8751
Triple Number Windward/Leeward High0.9835
Coastal/Long Distance0.9849
Predominantly Upwind0.9727
Predominantly Downwind1.0885
For information
General Purpose Handicap (GPH)623.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0656
Distanseseilas Trippeltall svak vind0.8737
Distanseseilas Trippeltall mellomvind1.0686
Distanseseilas Trippeltall sterk vind1.1793
Pølsebane Trippeltall svak vind0.6875
Pølsebane Trippeltall mellomvind0.8751
Pølsebane Trippeltall sterk vind0.9835
Motvind Singeltall0.9727
Medvind Singeltall1.0885
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Coastal/Long Distance609.20.9849
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind616.90.9727
Predominantly Downwind551.21.0885
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore557.81.0756
Cape Doctor Coastal475.71.2613
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8737
Triple Number Coastal/Long Distance Medium1.0686
Triple Number Coastal/Long Distance High1.1793
Triple Number Windward/Leeward Low0.6875
Triple Number Windward/Leeward Medium0.8751
Triple Number Windward/Leeward High0.9835
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8737
Triple Number Coastal/Long Distance Medium1.0686
Triple Number Coastal/Long Distance High1.1793
Triple Number Windward/Leeward Low0.6875
Triple Number Windward/Leeward Medium0.8751
Triple Number Windward/Leeward High0.9835
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Predominantly Upwind616.90.9727
Predominantly Downwind551.21.0885
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance609.20.9849
Triple Number Coastal/Long Distance Low686.70.8737
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High508.81.1793
Triple Number Windward/Leeward Low872.70.6875
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.4954.6742.5644.0586.9552.1520.5464.4443.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low686.70.8737
Triple Number AP Medium561.51.0685
Triple Number AP High508.81.1793
Triple Number Windward/Leeward Low910.90.6587
Triple Number Windward/Leeward Medium685.60.8751
Triple Number Windward/Leeward High610.10.9835
Single Number Predominant Upwind639.00.9390
Single Number Predominant Reaching551.51.0880
Single Number Predominant Downwind571.01.0507
Predominant Upwind - Low827.60.7250
Predominant Upwind - Low/Med658.70.9109
Predominant Upwind - Medium603.90.9936
Predominant Upwind - Med/High575.31.0429
Predominant Upwind - High562.61.0665
Predominant Downwind Low807.90.7426
Predominant Downwind Low/Med616.20.9738
Predominant Downwind Medium537.71.1159
Predominant Downwind Med/High477.91.2556
Predominant Downwind High428.11.4016
Predominant Reaching Low732.70.8189
Predominant Reaching Low/Med581.01.0327
Predominant Reaching Medium523.31.1467
Predominant Reaching Med/High482.21.2443
Predominant Reaching High454.61.3199
SA/DSPL Upwind25.68SA/DSPL Downwind66.17
Scoring OptionTODTOT
5-Band Windward/Leeward Low1009.30.5945
5-Band Windward/Leeward Low/Med767.00.7822
5-Band Windward/Leeward Medium677.00.8862
5-Band Windward/Leeward Med/High621.70.9651
5-Band Windward/Leeward High579.21.0360
Windward/Leeward 60-40 Low1017.90.5894
Windward/Leeward 60-40 Low/Med780.70.7685
Windward/Leeward 60-40 Medium696.60.8613
Windward/Leeward 60-40 Med/High649.00.9245
Windward/Leeward 60-40 High616.90.9725
5-Band AP Low748.60.8014
5-Band AP Low/Med616.20.9737
5-Band AP Medium555.51.0801
5-Band AP Med/High516.31.1620
5-Band AP High488.91.2273
5-Band SF Bay Tour - Low875.50.6853
5-Band SF Bay Tour - Low/Med735.70.8155
5-Band SF Bay Tour - Medium654.70.9165
5-Band SF Bay Tour - Med/High605.60.9907
5-Band SF Bay Tour - High571.01.0508
Chicago-Mac Upwind0.9167
Chicago-Mac All Purpose0.9649
Chicago-Mac Downwind1.0136
Bayview-Mac Cove Island0.7304
Bayview-Mac Shore0.7345
Harvest Moon Regatta483.81.2402
Double HandedClub Certificate2025
J-ForceNOR 15774
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ/88MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.960Max. Beam2.854Draft1.972Displacement2,489Wetted area16.61IMS L8.460LSM08.312Acc. length8.960Sink (kg/mm) 12.74
VCGD-0.245VCGM-0.163RM Rated (kg·m) 53.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P11.230IG11.660ISP12.650MDT10.093MDL10.143MDT20.085MDL20.105TL1.940MW0.120GO0.170
E3.660J3.400BAS1.270FSDFoilSFJ0.230SPL0.000WPLTPS5.550BD0.000MWT65.00MCG4.480
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.245Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
J-ForceNOR 15774
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment425-2018052117250.441.121.732.593.1426.7521/05/2018Seiler med britisk nr GBR 8588R425-2018052117200.441.151.712.563.1426.6621/05/2018Seiler med britisk nr GBR8588R
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment425-2018052122130.200.630.971.832.723.5311.15NoNo 20.5521/05/20187/8 målet er ikke målt da dette er et gammelt seil. Det er antatt et mål får å få seilet registrert.425-2018052117350.200.620.921.792.653.5311.30NoNo 20.4421/05/20187/8 målet er ikke målt da dette er et gammelt seil. Det er antatt et mål får å få seilet registrert.425-2018052117460.200.630.821.562.723.2210.56NoNo 18.0221/05/2018
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment425-20180521173214.8511.9513.408.638.09107%95.1621/05/2018425-20180521173114.6611.4013.036.666.7099%72.4021/05/2018