Non Spin/HSFClub Certificate2025
BalsamNOR 50
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 Angles42.6°42.6°40.8°39.6°39.3°39.5°39.7°40.4°42.3°
Beat VMG2.012.753.313.653.773.813.833.843.74
52°3.104.164.895.295.435.495.535.585.56
60°3.274.365.095.475.625.695.745.805.82
75°3.374.495.235.655.865.976.056.176.24
90°3.294.415.175.655.956.136.276.496.66
110°2.984.094.945.515.876.146.386.817.15
120°2.773.854.725.355.756.046.296.787.28
135°2.373.384.274.985.495.846.116.597.15
150°2.012.953.824.555.165.605.916.406.90
Run VMG1.732.573.384.114.755.295.686.226.69
Gybe Angles155.9°155.9°180.0°180.0°180.0°180.0°180.0°180.0°180.0°
APH ToD:735.6CDL: 5.728APH ToT: 0.8157CertNo:675950
BOAT
ClassKnarrDesignerErlingKristoffersenBuilderGrimsøykilens BåtbyggeriAge dateSeries date01/1943Offset fileknarrCl.offData file675950
HULL
Length Overall9.225 mMaximum Beam2.098 mDraft1.333 mDisplacement2,320 kgDLR12.0726IMS DivisionCruiser/RacerDynamic Allowance0.450%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight314 kg(default)Minimum weight184 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail18.9519.36Headsail Luffed8.508.50Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail5.63Storm Jib3.70Heavy Weather Jib9.99
SAIL LIMITS
Headsails5
✱ 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
BalsamNOR 50
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 VMG1794.41309.41087.7987.4955.8944.4939.3938.5963.0
52°1163.1865.8736.0681.0663.5655.8651.3645.5647.8
60°1101.4825.8707.6657.9640.6632.7627.3620.4618.9
75°1067.5802.3688.5637.7614.7603.1594.6583.5577.4
90°1092.7816.8696.0637.6604.9586.9574.3554.5540.8
110°1208.6880.1728.5653.4613.6586.4563.9528.9503.5
120°1299.2935.2763.1673.0626.0596.1572.7530.7494.8
135°1520.91065.0843.7723.6655.5616.6589.6546.6503.8
150°1792.21221.6942.4790.6697.4642.5608.8562.8521.8
Run VMG2080.81401.91066.3876.4758.5681.0633.8579.2538.1
Selected Courses
Windward / Leeward1932.91355.71077.0931.9857.1812.7786.5758.8750.5
All purpose1459.41047.4853.5756.5707.8680.2662.4638.7625.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward898.10.6681
All purpose735.60.8157
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5864
Downwind "popa"0.7004
70% up, 30% down "Ilhabela"0.6165
30% up, 70% down "Ilhabela-inverso"0.6618
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Predominantly Upwind791.00.7586
Predominantly Downwind750.80.7992
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low950.40.6313
Triple Number AP Medium729.40.8226
Triple Number AP High658.00.9119
Triple Number Windward/Leeward Low1274.00.4710
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Single Number Predominant Upwind822.90.7291
Single Number Predominant Reaching734.00.8175
Single Number Predominant Downwind790.40.7591
Predominant Upwind - Low1119.60.5359
Predominant Upwind - Low/Med858.40.6990
Predominant Upwind - Medium765.80.7835
Predominant Upwind - Med/High725.90.8265
Predominant Upwind - High711.70.8431
Predominant Downwind Low1196.30.5015
Predominant Downwind Low/Med862.10.6960
Predominant Downwind Medium720.70.8325
Predominant Downwind Med/High640.60.9367
Predominant Downwind High601.90.9969
Predominant Reaching Low1032.20.5813
Predominant Reaching Low/Med780.00.7692
Predominant Reaching Medium681.00.8811
Predominant Reaching Med/High628.70.9543
Predominant Reaching High602.60.9958
SA/DSPL Upwind15.62SA/DSPL Downwind15.62
Scoring OptionTODTOT
5-Band Windward/Leeward Low1431.50.4191
5-Band Windward/Leeward Low/Med1034.40.5800
5-Band Windward/Leeward Medium874.40.6862
5-Band Windward/Leeward Med/High792.20.7574
5-Band Windward/Leeward High762.20.7872
Windward/Leeward 60-40 Low1420.20.4225
Windward/Leeward 60-40 Low/Med1040.60.5766
Windward/Leeward 60-40 Medium893.30.6717
Windward/Leeward 60-40 Med/High822.10.7299
Windward/Leeward 60-40 High798.30.7516
5-Band AP Low1065.70.5630
5-Band AP Low/Med826.30.7261
5-Band AP Medium719.60.8338
5-Band AP Med/High665.20.9019
5-Band AP High640.60.9367
5-Band SF Bay Tour - Low1228.30.4885
5-Band SF Bay Tour - Low/Med993.60.6038
5-Band SF Bay Tour - Medium851.50.7047
5-Band SF Bay Tour - Med/High781.30.7680
5-Band SF Bay Tour - High754.80.7949
Chicago-Mac Upwind0.7092
Chicago-Mac All Purpose0.7240
Chicago-Mac Downwind0.7309
Bayview-Mac Cove Island0.5240
Bayview-Mac Shore0.5294
Harvest Moon Regatta635.00.9449
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance799.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating799.20.7507
FinRating, kevyt tuuli1412.60.7079
FinRating, kova tuuli644.20.7762
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7507
Triple Number Coastal/Long Distance Low0.6313
Triple Number Coastal/Long Distance Medium0.8227
Triple Number Coastal/Long Distance High0.9119
Triple Number Windward/Leeward Low0.4933
Triple Number Windward/Leeward Medium0.6747
Triple Number Windward/Leeward High0.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
For information
General Purpose Handicap (GPH)826.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low950.4
Triple Number Coastal/Long Distance Medium729.3
Triple Number Coastal/Long Distance High658.0
Triple Number Windward/Leeward Low1216.3
Triple Number Windward/Leeward Medium889.3
Triple Number Windward/Leeward High782.7
Predominantly Upwind791.0
Predominantly Downwind750.8
Predominantly Reaching717.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6313
Triple Number Coastal/Long Distance Medium0.8227
Triple Number Coastal/Long Distance High0.9119
Triple Number Windward/Leeward Low0.4933
Triple Number Windward/Leeward Medium0.6747
Triple Number Windward/Leeward High0.7666
Coastal/Long Distance0.7507
Predominantly Upwind0.7586
Predominantly Downwind0.7992
For information
General Purpose Handicap (GPH)826.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8157
Distanseseilas Trippeltall svak vind0.6313
Distanseseilas Trippeltall mellomvind0.8227
Distanseseilas Trippeltall sterk vind0.9119
Pølsebane Trippeltall svak vind0.4933
Pølsebane Trippeltall mellomvind0.6747
Pølsebane Trippeltall sterk vind0.7666
Motvind Singeltall0.7586
Medvind Singeltall0.7992
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Coastal/Long Distance799.20.7507
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind791.00.7586
Predominantly Downwind750.80.7992
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore753.00.7968
Cape Doctor Coastal629.60.9529
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6313
Triple Number Coastal/Long Distance Medium0.8227
Triple Number Coastal/Long Distance High0.9119
Triple Number Windward/Leeward Low0.4933
Triple Number Windward/Leeward Medium0.6747
Triple Number Windward/Leeward High0.7666
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6313
Triple Number Coastal/Long Distance Medium0.8227
Triple Number Coastal/Long Distance High0.9119
Triple Number Windward/Leeward Low0.4933
Triple Number Windward/Leeward Medium0.6747
Triple Number Windward/Leeward High0.7666
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Predominantly Upwind791.00.7586
Predominantly Downwind750.80.7992
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance799.20.7507
Triple Number Coastal/Long Distance Low950.40.6313
Triple Number Coastal/Long Distance Medium729.30.8227
Triple Number Coastal/Long Distance High658.00.9119
Triple Number Windward/Leeward Low1216.30.4933
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2072.01360.31017.1846.6755.6706.0668.7606.7588.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low950.40.6313
Triple Number AP Medium729.40.8226
Triple Number AP High658.00.9119
Triple Number Windward/Leeward Low1274.00.4710
Triple Number Windward/Leeward Medium889.30.6747
Triple Number Windward/Leeward High782.70.7666
Single Number Predominant Upwind822.90.7291
Single Number Predominant Reaching734.00.8175
Single Number Predominant Downwind790.40.7591
Predominant Upwind - Low1119.60.5359
Predominant Upwind - Low/Med858.40.6990
Predominant Upwind - Medium765.80.7835
Predominant Upwind - Med/High725.90.8265
Predominant Upwind - High711.70.8431
Predominant Downwind Low1196.30.5015
Predominant Downwind Low/Med862.10.6960
Predominant Downwind Medium720.70.8325
Predominant Downwind Med/High640.60.9367
Predominant Downwind High601.90.9969
Predominant Reaching Low1032.20.5813
Predominant Reaching Low/Med780.00.7692
Predominant Reaching Medium681.00.8811
Predominant Reaching Med/High628.70.9543
Predominant Reaching High602.60.9958
SA/DSPL Upwind15.62SA/DSPL Downwind15.62
Scoring OptionTODTOT
5-Band Windward/Leeward Low1431.50.4191
5-Band Windward/Leeward Low/Med1034.40.5800
5-Band Windward/Leeward Medium874.40.6862
5-Band Windward/Leeward Med/High792.20.7574
5-Band Windward/Leeward High762.20.7872
Windward/Leeward 60-40 Low1420.20.4225
Windward/Leeward 60-40 Low/Med1040.60.5766
Windward/Leeward 60-40 Medium893.30.6717
Windward/Leeward 60-40 Med/High822.10.7299
Windward/Leeward 60-40 High798.30.7516
5-Band AP Low1065.70.5630
5-Band AP Low/Med826.30.7261
5-Band AP Medium719.60.8338
5-Band AP Med/High665.20.9019
5-Band AP High640.60.9367
5-Band SF Bay Tour - Low1228.30.4885
5-Band SF Bay Tour - Low/Med993.60.6038
5-Band SF Bay Tour - Medium851.50.7047
5-Band SF Bay Tour - Med/High781.30.7680
5-Band SF Bay Tour - High754.80.7949
Chicago-Mac Upwind0.7092
Chicago-Mac All Purpose0.7240
Chicago-Mac Downwind0.7309
Bayview-Mac Cove Island0.5240
Bayview-Mac Shore0.5294
Harvest Moon Regatta635.00.9449
Non Spin/HSFClub Certificate2025
BalsamNOR 50
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassKnarrMeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.225Max. Beam2.098Draft1.333Displacement2,320Wetted area12.53IMS L6.574LSM05.770Acc. length6.819Sink (kg/mm) 7.76
VCGD0.000VCGM-0.014RM Rated (kg·m) 14.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight314Declared crew weightN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P9.450IG8.600ISP8.600MDT10.082MDL10.122MDT20.049MDL20.075TL1.550MW0.000GO0.000
E3.400J2.000BAS0.850FSD0.000SFJ1.200SPL2.650WPLTPS0.000BD0.000MWT40.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.000Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
BalsamNOR 50
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment1-2021052612390.120.701.202.150.0018.9526/05/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment1-2021052612390.000.000.000.000.002.536.60YesNo 8.5026/05/2021
CRUISER/RACER REQUIREMENTS*
Accommodation length6.8 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity8 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.