Non Spin/HSFClub Certificate2025
J-walkNOR 11623
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 Angles43.4°43.4°41.4°39.7°37.8°36.9°36.5°36.2°36.4°
Beat VMG2.753.834.725.365.745.926.036.146.16
52°4.335.897.027.708.028.198.288.398.45
60°4.656.237.307.898.208.398.508.648.71
75°4.886.477.488.038.378.638.839.069.21
90°4.746.337.398.008.398.719.009.469.79
110°4.115.596.737.628.168.578.969.7210.48
120°3.645.136.397.367.988.428.829.6510.63
135°3.054.425.666.697.498.048.459.2610.15
150°2.503.704.835.826.647.357.878.589.32
Run VMG2.163.204.195.045.886.677.368.299.03
Gybe Angles143.9°143.9°145.8°146.9°173.0°174.6°176.4°178.4°178.4°
APH ToD:524.3CDL: 11.741APH ToT: 1.1443CertNo:9186
BOAT
ClassJ/133DesignerJohnstoneBuilderJ/CompositeAge date01/2005Series date01/2004Offset fileJ133.OFFData file9186
HULL
Length Overall13.140 mMaximum Beam3.874 mDraft2.285 mDisplacement8,824 kgDLR5.2387IMS DivisionCruiser/RacerDynamic Allowance0.210%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.440m
CREW
Maximum weight882 kg(default)Minimum weight750 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail55.7556.88Headsail Luffed49.0549.05Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail16.34Storm Jib15.25Heavy Weather Jib41.16
SAIL LIMITS
Headsails1
✱ One set on the forestay
✱ Zero set flying
Spinnakers0
✱ No spinnaker pole aboard
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.
Non Spin/HSFClub Certificate2025
J-walkNOR 11623
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 VMG1308.5938.9763.3671.1626.7607.8597.0586.3584.0
52°831.6611.6512.6467.6448.7439.7434.6428.9426.2
60°774.5578.1493.1456.2438.9429.1423.4416.8413.4
75°737.0556.8481.2448.5430.1417.3407.8397.2391.0
90°759.5569.0486.8449.9429.3413.4400.0380.4367.8
110°875.7643.5534.7472.5441.0420.0401.7370.5343.5
120°990.2702.2563.6489.5450.9427.6408.0373.1338.8
135°1181.3814.8635.8538.4480.4447.8426.2389.0354.6
150°1438.0973.4744.7618.4542.0489.7457.6419.5386.3
Run VMG1664.01124.0859.9714.1612.6539.7489.0434.2398.8
Selected Courses
Windward / Leeward1484.01031.4811.6692.6619.7573.8543.0510.3491.4
All purpose1091.2776.4626.1547.2503.0475.8457.2433.5416.3
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward651.70.9207
All purpose524.31.1443
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8766
Downwind "popa"0.8799
70% up, 30% down "Ilhabela"0.8776
30% up, 70% down "Ilhabela-inverso"0.8789
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Predominantly Upwind549.41.0922
Predominantly Downwind558.11.0751
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low701.30.8556
Triple Number AP Medium521.31.1511
Triple Number AP High453.01.3246
Triple Number Windward/Leeward Low966.10.6211
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Single Number Predominant Upwind572.31.0485
Single Number Predominant Reaching524.91.1432
Single Number Predominant Downwind587.61.0210
Predominant Upwind - Low813.80.7373
Predominant Upwind - Low/Med609.30.9847
Predominant Upwind - Medium528.61.1352
Predominant Upwind - Med/High487.21.2316
Predominant Upwind - High469.21.2789
Predominant Downwind Low913.70.6567
Predominant Downwind Low/Med650.90.9218
Predominant Downwind Medium534.51.1225
Predominant Downwind Med/High461.31.3008
Predominant Downwind High423.91.4153
Predominant Reaching Low757.70.7918
Predominant Reaching Low/Med564.91.0621
Predominant Reaching Medium485.61.2357
Predominant Reaching Med/High438.71.3677
Predominant Reaching High413.41.4515
SA/DSPL Upwind24.37SA/DSPL Downwind24.37
Scoring OptionTODTOT
5-Band Windward/Leeward Low1090.20.5504
5-Band Windward/Leeward Low/Med773.70.7755
5-Band Windward/Leeward Medium633.70.9468
5-Band Windward/Leeward Med/High549.21.0926
5-Band Windward/Leeward High512.71.1704
Windward/Leeward 60-40 Low1069.60.5609
Windward/Leeward 60-40 Low/Med766.20.7830
Windward/Leeward 60-40 Medium634.90.9450
Windward/Leeward 60-40 Med/High559.21.0729
Windward/Leeward 60-40 High527.71.1370
5-Band AP Low791.60.7580
5-Band AP Low/Med602.30.9962
5-Band AP Medium512.21.1714
5-Band AP Med/High460.21.3038
5-Band AP High434.61.3805
5-Band SF Bay Tour - Low923.50.6497
5-Band SF Bay Tour - Low/Med732.70.8189
5-Band SF Bay Tour - Medium607.20.9882
5-Band SF Bay Tour - Med/High535.31.1209
5-Band SF Bay Tour - High503.81.1910
Chicago-Mac Upwind1.0133
Chicago-Mac All Purpose1.0006
Chicago-Mac Downwind0.9758
Bayview-Mac Cove Island0.7061
Bayview-Mac Shore0.7157
Harvest Moon Regatta456.71.3137
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance575.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating575.51.0425
FinRating, kevyt tuuli1073.50.9315
FinRating, kova tuuli437.91.1419
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0425
Triple Number Coastal/Long Distance Low0.8556
Triple Number Coastal/Long Distance Medium1.1512
Triple Number Coastal/Long Distance High1.3246
Triple Number Windward/Leeward Low0.6511
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
For information
General Purpose Handicap (GPH)594.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low701.3
Triple Number Coastal/Long Distance Medium521.2
Triple Number Coastal/Long Distance High453.0
Triple Number Windward/Leeward Low921.5
Triple Number Windward/Leeward Medium648.5
Triple Number Windward/Leeward High538.4
Predominantly Upwind549.4
Predominantly Downwind558.1
Predominantly Reaching520.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8556
Triple Number Coastal/Long Distance Medium1.1512
Triple Number Coastal/Long Distance High1.3246
Triple Number Windward/Leeward Low0.6511
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.1144
Coastal/Long Distance1.0425
Predominantly Upwind1.0922
Predominantly Downwind1.0751
For information
General Purpose Handicap (GPH)594.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1443
Distanseseilas Trippeltall svak vind0.8556
Distanseseilas Trippeltall mellomvind1.1512
Distanseseilas Trippeltall sterk vind1.3246
Pølsebane Trippeltall svak vind0.6511
Pølsebane Trippeltall mellomvind0.9252
Pølsebane Trippeltall sterk vind1.1144
Motvind Singeltall1.0922
Medvind Singeltall1.0751
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Coastal/Long Distance575.51.0425
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind549.41.0922
Predominantly Downwind558.11.0751
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore497.11.2071
Cape Doctor Coastal421.41.4237
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8556
Triple Number Coastal/Long Distance Medium1.1512
Triple Number Coastal/Long Distance High1.3246
Triple Number Windward/Leeward Low0.6511
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.1144
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8556
Triple Number Coastal/Long Distance Medium1.1512
Triple Number Coastal/Long Distance High1.3246
Triple Number Windward/Leeward Low0.6511
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.1144
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Predominantly Upwind549.41.0922
Predominantly Downwind558.11.0751
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance575.51.0425
Triple Number Coastal/Long Distance Low701.30.8556
Triple Number Coastal/Long Distance Medium521.21.1512
Triple Number Coastal/Long Distance High453.01.3246
Triple Number Windward/Leeward Low921.50.6511
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1616.71040.7763.7621.4537.6494.5463.2417.5398.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low701.30.8556
Triple Number AP Medium521.31.1511
Triple Number AP High453.01.3246
Triple Number Windward/Leeward Low966.10.6211
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High538.41.1144
Single Number Predominant Upwind572.31.0485
Single Number Predominant Reaching524.91.1432
Single Number Predominant Downwind587.61.0210
Predominant Upwind - Low813.80.7373
Predominant Upwind - Low/Med609.30.9847
Predominant Upwind - Medium528.61.1352
Predominant Upwind - Med/High487.21.2316
Predominant Upwind - High469.21.2789
Predominant Downwind Low913.70.6567
Predominant Downwind Low/Med650.90.9218
Predominant Downwind Medium534.51.1225
Predominant Downwind Med/High461.31.3008
Predominant Downwind High423.91.4153
Predominant Reaching Low757.70.7918
Predominant Reaching Low/Med564.91.0621
Predominant Reaching Medium485.61.2357
Predominant Reaching Med/High438.71.3677
Predominant Reaching High413.41.4515
SA/DSPL Upwind24.37SA/DSPL Downwind24.37
Scoring OptionTODTOT
5-Band Windward/Leeward Low1090.20.5504
5-Band Windward/Leeward Low/Med773.70.7755
5-Band Windward/Leeward Medium633.70.9468
5-Band Windward/Leeward Med/High549.21.0926
5-Band Windward/Leeward High512.71.1704
Windward/Leeward 60-40 Low1069.60.5609
Windward/Leeward 60-40 Low/Med766.20.7830
Windward/Leeward 60-40 Medium634.90.9450
Windward/Leeward 60-40 Med/High559.21.0729
Windward/Leeward 60-40 High527.71.1370
5-Band AP Low791.60.7580
5-Band AP Low/Med602.30.9962
5-Band AP Medium512.21.1714
5-Band AP Med/High460.21.3038
5-Band AP High434.61.3805
5-Band SF Bay Tour - Low923.50.6497
5-Band SF Bay Tour - Low/Med732.70.8189
5-Band SF Bay Tour - Medium607.20.9882
5-Band SF Bay Tour - Med/High535.31.1209
5-Band SF Bay Tour - High503.81.1910
Chicago-Mac Upwind1.0133
Chicago-Mac All Purpose1.0006
Chicago-Mac Downwind0.9758
Bayview-Mac Cove Island0.7061
Bayview-Mac Shore0.7157
Harvest Moon Regatta456.71.3137
Non Spin/HSFClub Certificate2025
J-walkNOR 11623
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ/133MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA13.140Max. Beam3.874Draft2.285Displacement8,824Wetted area35.69IMS L12.127LSM011.897Acc. length12.591Sink (kg/mm) 26.33
VCGD-0.280VCGM-0.329RM Rated (kg·m) 262.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight882Declared crew weightN/A
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.440PBWPIPA0.0041
EDL1.530ST10.070ST20.180
ST30.180ST40.110ST50.260
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P16.460IG17.360ISP17.880MDT10.130MDL10.220MDT20.090MDL20.130TL1.220MW0.190GO0.220
E5.670J5.230BAS1.800FSDFoilSFJ0.000SPL0.000WPLTPS7.300BD0.000MWT208.00MCG6.090
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.280Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
J-walkNOR 11623
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment469-2019041708460.171.212.183.674.7655.7517/04/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment469-2025043008520.050.621.222.584.066.8517.00NoNo 49.0530/04/2025Ullman sails CC Black
CRUISER/RACER REQUIREMENTS*
Accommodation length12.6 mTable area0.55 m²Headroom1.84 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity165 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity102 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.