Non Spin/HSFClub Certificate2025
IsbjørnNOR 15046
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°41.2°40.1°39.8°39.2°38.8°38.2°38.3°
Beat VMG2.643.594.324.835.155.325.445.565.59
52°4.105.466.407.037.387.577.687.797.84
60°4.345.746.657.247.567.757.878.008.07
75°4.495.906.817.387.727.938.088.308.43
90°4.375.796.737.367.747.998.198.478.70
110°3.815.166.187.037.587.938.208.648.99
120°3.504.855.946.827.457.848.138.629.07
135°2.994.275.396.277.017.547.898.428.91
150°2.453.604.685.596.367.037.528.138.61
Run VMG2.133.124.054.875.606.276.897.758.27
Gybe Angles144.4°144.4°149.6°155.2°162.8°169.1°174.5°179.0°179.5°
APH ToD:566.0CDL: 10.298APH ToT: 1.0601CertNo:676323
BOAT
ClassS&S Swan 48DesignerSparkman&StephensBuilderNautorAge date01/1972Series date01/1971Offset fileSWN48S&S.offData file676323
HULL
Length Overall14.606 mMaximum Beam4.152 mDraft2.366 mDisplacement16,066 kgDLR10.7531IMS DivisionCruiser/RacerDynamic Allowance0.540%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 3 bladesDiameter0.450m
CREW
Maximum weight833 kg(default)Minimum weight703 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail53.1853.83Headsail Luffed73.4173.41Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail16.27Storm Jib17.55Heavy Weather Jib47.36
SAIL LIMITS
Headsails6
✱ Zero set flying
Spinnakers0
✱ 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
IsbjørnNOR 15046
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 VMG1366.21002.0833.8744.7699.6676.3662.1647.7643.6
52°877.1658.8562.8512.3487.7475.4469.0462.2459.4
60°828.8627.7541.6497.6476.0464.3457.5449.9446.2
75°802.6610.2528.9487.7466.6454.1445.5433.8426.9
90°822.9622.1535.3489.0465.2450.6439.8424.8413.7
110°943.8697.4582.1512.1474.7453.8439.1416.8400.3
120°1028.8742.8606.2528.0483.5459.1442.8417.6397.0
135°1205.9843.4668.4574.3513.4477.5456.2427.7404.1
150°1469.3999.4769.3644.1566.2512.4478.8442.8417.9
Run VMG1694.11154.1888.3739.3643.2573.8522.6464.6435.5
Selected Courses
Windward / Leeward1526.81078.0861.1742.0671.4625.1592.3556.2539.6
All purpose1138.0821.8672.2590.5543.9515.3496.6474.5461.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward701.90.8548
All purpose566.01.0601
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7975
Downwind "popa"0.8424
70% up, 30% down "Ilhabela"0.8105
30% up, 70% down "Ilhabela-inverso"0.8284
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Predominantly Upwind598.01.0034
Predominantly Downwind595.21.0080
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low747.00.8032
Triple Number AP Medium563.01.0657
Triple Number AP High493.01.2171
Triple Number Windward/Leeward Low1013.70.5919
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Single Number Predominant Upwind620.20.9674
Single Number Predominant Reaching565.21.0616
Single Number Predominant Downwind624.80.9604
Predominant Upwind - Low864.10.6944
Predominant Upwind - Low/Med660.20.9088
Predominant Upwind - Medium576.71.0404
Predominant Upwind - Med/High532.11.1275
Predominant Upwind - High513.81.1679
Predominant Downwind Low951.50.6306
Predominant Downwind Low/Med688.40.8715
Predominant Downwind Medium571.11.0505
Predominant Downwind Med/High497.61.2058
Predominant Downwind High462.71.2968
Predominant Reaching Low802.50.7477
Predominant Reaching Low/Med607.10.9882
Predominant Reaching Medium524.51.1440
Predominant Reaching Med/High476.91.2583
Predominant Reaching High454.51.3201
SA/DSPL Upwind19.70SA/DSPL Downwind19.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1136.80.5278
5-Band Windward/Leeward Low/Med823.10.7290
5-Band Windward/Leeward Medium684.60.8764
5-Band Windward/Leeward Med/High598.51.0026
5-Band Windward/Leeward High559.51.0723
Windward/Leeward 60-40 Low1119.70.5359
Windward/Leeward 60-40 Low/Med819.90.7318
Windward/Leeward 60-40 Medium689.90.8697
Windward/Leeward 60-40 Med/High611.80.9807
Windward/Leeward 60-40 High577.51.0389
5-Band AP Low836.80.7171
5-Band AP Low/Med646.50.9281
5-Band AP Medium553.61.0839
5-Band AP Med/High500.01.2000
5-Band AP High476.01.2605
5-Band SF Bay Tour - Low971.10.6179
5-Band SF Bay Tour - Low/Med782.70.7665
5-Band SF Bay Tour - Medium657.80.9122
5-Band SF Bay Tour - Med/High583.51.0283
5-Band SF Bay Tour - High550.91.0891
Chicago-Mac Upwind0.9350
Chicago-Mac All Purpose0.9329
Chicago-Mac Downwind0.9202
Bayview-Mac Cove Island0.6702
Bayview-Mac Shore0.6785
Harvest Moon Regatta492.41.2184
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance619.4
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating619.40.9687
FinRating, kevyt tuuli1119.20.8935
FinRating, kova tuuli480.11.0414
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9687
Triple Number Coastal/Long Distance Low0.8032
Triple Number Coastal/Long Distance Medium1.0658
Triple Number Coastal/Long Distance High1.2171
Triple Number Windward/Leeward Low0.6188
Triple Number Windward/Leeward Medium0.8582
Triple Number Windward/Leeward High1.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
For information
General Purpose Handicap (GPH)639.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low747.0
Triple Number Coastal/Long Distance Medium563.0
Triple Number Coastal/Long Distance High493.0
Triple Number Windward/Leeward Low969.6
Triple Number Windward/Leeward Medium699.1
Triple Number Windward/Leeward High587.0
Predominantly Upwind598.0
Predominantly Downwind595.2
Predominantly Reaching559.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8032
Triple Number Coastal/Long Distance Medium1.0658
Triple Number Coastal/Long Distance High1.2171
Triple Number Windward/Leeward Low0.6188
Triple Number Windward/Leeward Medium0.8582
Triple Number Windward/Leeward High1.0222
Coastal/Long Distance0.9687
Predominantly Upwind1.0034
Predominantly Downwind1.0080
For information
General Purpose Handicap (GPH)639.2
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0601
Distanseseilas Trippeltall svak vind0.8032
Distanseseilas Trippeltall mellomvind1.0658
Distanseseilas Trippeltall sterk vind1.2171
Pølsebane Trippeltall svak vind0.6188
Pølsebane Trippeltall mellomvind0.8582
Pølsebane Trippeltall sterk vind1.0222
Motvind Singeltall1.0034
Medvind Singeltall1.0080
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Coastal/Long Distance619.40.9687
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind598.01.0034
Predominantly Downwind595.21.0080
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore544.51.1018
Cape Doctor Coastal465.21.2899
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8032
Triple Number Coastal/Long Distance Medium1.0658
Triple Number Coastal/Long Distance High1.2171
Triple Number Windward/Leeward Low0.6188
Triple Number Windward/Leeward Medium0.8582
Triple Number Windward/Leeward High1.0222
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8032
Triple Number Coastal/Long Distance Medium1.0658
Triple Number Coastal/Long Distance High1.2171
Triple Number Windward/Leeward Low0.6188
Triple Number Windward/Leeward Medium0.8582
Triple Number Windward/Leeward High1.0222
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Predominantly Upwind598.01.0034
Predominantly Downwind595.21.0080
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance619.40.9687
Triple Number Coastal/Long Distance Low747.00.8032
Triple Number Coastal/Long Distance Medium563.01.0658
Triple Number Coastal/Long Distance High493.01.2171
Triple Number Windward/Leeward Low969.60.6188
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.31085.6811.5667.6581.7535.6502.5457.3443.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low747.00.8032
Triple Number AP Medium563.01.0657
Triple Number AP High493.01.2171
Triple Number Windward/Leeward Low1013.70.5919
Triple Number Windward/Leeward Medium699.10.8582
Triple Number Windward/Leeward High587.01.0222
Single Number Predominant Upwind620.20.9674
Single Number Predominant Reaching565.21.0616
Single Number Predominant Downwind624.80.9604
Predominant Upwind - Low864.10.6944
Predominant Upwind - Low/Med660.20.9088
Predominant Upwind - Medium576.71.0404
Predominant Upwind - Med/High532.11.1275
Predominant Upwind - High513.81.1679
Predominant Downwind Low951.50.6306
Predominant Downwind Low/Med688.40.8715
Predominant Downwind Medium571.11.0505
Predominant Downwind Med/High497.61.2058
Predominant Downwind High462.71.2968
Predominant Reaching Low802.50.7477
Predominant Reaching Low/Med607.10.9882
Predominant Reaching Medium524.51.1440
Predominant Reaching Med/High476.91.2583
Predominant Reaching High454.51.3201
SA/DSPL Upwind19.70SA/DSPL Downwind19.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1136.80.5278
5-Band Windward/Leeward Low/Med823.10.7290
5-Band Windward/Leeward Medium684.60.8764
5-Band Windward/Leeward Med/High598.51.0026
5-Band Windward/Leeward High559.51.0723
Windward/Leeward 60-40 Low1119.70.5359
Windward/Leeward 60-40 Low/Med819.90.7318
Windward/Leeward 60-40 Medium689.90.8697
Windward/Leeward 60-40 Med/High611.80.9807
Windward/Leeward 60-40 High577.51.0389
5-Band AP Low836.80.7171
5-Band AP Low/Med646.50.9281
5-Band AP Medium553.61.0839
5-Band AP Med/High500.01.2000
5-Band AP High476.01.2605
5-Band SF Bay Tour - Low971.10.6179
5-Band SF Bay Tour - Low/Med782.70.7665
5-Band SF Bay Tour - Medium657.80.9122
5-Band SF Bay Tour - Med/High583.51.0283
5-Band SF Bay Tour - High550.91.0891
Chicago-Mac Upwind0.9350
Chicago-Mac All Purpose0.9329
Chicago-Mac Downwind0.9202
Bayview-Mac Cove Island0.6702
Bayview-Mac Shore0.6785
Harvest Moon Regatta492.41.2184
Non Spin/HSFClub Certificate2025
IsbjørnNOR 15046
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassS&S Swan 48MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA14.606Max. Beam4.152Draft2.366Displacement16,066Wetted area42.15IMS L11.484LSM011.431Acc. length13.494Sink (kg/mm) 28.09
VCGD-0.250VCGM-0.273RM Rated (kg·m) 316.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight833Declared crew weightN/A
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.450PBWPIPA0.0079
PSD0.040PHD0.090PHL0.162
PSA18.0°ESL0.890
ST10.057ST20.138ST30.187
ST40.071ST50.160
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays2CheckstaysSpreaders2Rotating mastNo
P17.340IG18.730ISP18.740MDT10.150MDL10.290MDT20.000MDL20.000TLTaperMW0.000GO0.000
E5.360J6.110BAS1.590FSDFoilSFJ0.120SPL6.253WPLTPS0.000BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.250Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
IsbjørnNOR 15046
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment400-2023061212160.171.061.863.284.3453.1809/06/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment400-2023061212180.090.991.963.996.168.3917.93NoNo 73.4109/06/2023400-2023061212210.070.711.352.754.325.9817.84NoNo 51.2709/06/2023
CRUISER/RACER REQUIREMENTS*
Accommodation length13.5 mTable area0.66 m²Headroom1.87 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity225 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity120 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.