Non Spin/HSFClub Certificate2025
Madam LarsenNOR 7213
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 Angles43.6°43.6°41.6°39.9°38.4°37.9°37.7°38.0°39.3°
Beat VMG2.273.113.764.224.504.624.674.684.58
52°3.544.755.576.066.336.476.536.596.57
60°3.764.995.796.226.476.636.716.806.80
75°3.875.125.926.346.616.826.997.167.24
90°3.765.015.866.356.646.897.127.477.67
110°3.274.515.496.166.566.887.187.768.34
120°3.064.275.265.996.446.777.077.698.41
135°2.613.754.755.556.146.526.827.428.09
150°2.163.194.174.995.686.196.547.127.71
Run VMG1.872.773.624.385.075.686.166.797.34
Gybe Angles148.0°148.0°153.2°160.9°169.9°176.8°179.0°179.5°179.5°
APH ToD:648.0CDL: 7.385APH ToT: 0.9259CertNo:5176
BOAT
ClassLARSEN 28DesignerHansÅgeLarsenBuilderNyboatAge date01/1987Series date01/1985Offset fileLARS28.OFFData file5176
HULL
Length Overall8.823 mMaximum Beam2.648 mDraft1.538 mDisplacement2,716 kgDLR6.2822IMS DivisionCruiser/RacerDynamic Allowance0.300%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.340m
CREW
Maximum weight462 kg(default)Minimum weight332 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail22.4022.79Headsail Luffed22.2722.27Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail6.80Storm Jib4.64Heavy Weather Jib12.52
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
Madam LarsenNOR 7213
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 VMG1589.31158.7958.6853.5799.4779.7770.3769.0786.4
52°1016.7758.5645.9594.3568.6556.5551.1546.6548.1
60°957.2721.5622.0579.1556.1542.7536.3529.8529.1
75°929.2702.5607.8567.5544.6527.5515.1503.0497.0
90°958.4718.0614.2567.3542.1522.7505.8481.9469.6
110°1101.8797.6655.6584.2548.5523.5501.5463.8431.8
120°1178.2843.9684.7601.0558.7532.0509.0467.9428.3
135°1377.7960.7758.2648.8586.7552.3527.9485.4444.7
150°1664.51127.2864.3721.8634.2581.5550.2505.8467.1
Run VMG1922.71301.6995.4822.4710.4633.9584.3530.4490.7
Selected Courses
Windward / Leeward1752.21230.2977.0837.9754.9706.8677.3649.7638.5
All purpose1311.1940.2764.8673.4621.9592.4573.1549.0534.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward794.80.7549
All purpose648.00.9259
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6898
Downwind "popa"0.7529
70% up, 30% down "Ilhabela"0.7076
30% up, 70% down "Ilhabela-inverso"0.7328
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Predominantly Upwind687.30.8729
Predominantly Downwind675.90.8877
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low852.50.7038
Triple Number AP Medium643.70.9321
Triple Number AP High568.91.0547
Triple Number Windward/Leeward Low1154.90.5195
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Single Number Predominant Upwind715.20.8389
Single Number Predominant Reaching649.50.9238
Single Number Predominant Downwind710.70.8442
Predominant Upwind - Low994.30.6034
Predominant Upwind - Low/Med757.00.7926
Predominant Upwind - Medium663.20.9047
Predominant Upwind - Med/High617.60.9715
Predominant Upwind - High602.00.9967
Predominant Downwind Low1084.10.5534
Predominant Downwind Low/Med780.30.7689
Predominant Downwind Medium648.20.9257
Predominant Downwind Med/High569.21.0542
Predominant Downwind High530.31.1315
Predominant Reaching Low920.60.6517
Predominant Reaching Low/Med694.70.8636
Predominant Reaching Medium602.90.9951
Predominant Reaching Med/High550.21.0905
Predominant Reaching High522.91.1475
SA/DSPL Upwind22.87SA/DSPL Downwind22.87
Scoring OptionTODTOT
5-Band Windward/Leeward Low1298.30.4621
5-Band Windward/Leeward Low/Med932.50.6435
5-Band Windward/Leeward Medium772.70.7765
5-Band Windward/Leeward Med/High684.20.8770
5-Band Windward/Leeward High652.60.9195
Windward/Leeward 60-40 Low1281.90.4680
Windward/Leeward 60-40 Low/Med931.50.6441
Windward/Leeward 60-40 Medium781.40.7679
Windward/Leeward 60-40 Med/High702.20.8545
Windward/Leeward 60-40 High676.50.8869
5-Band AP Low957.10.6269
5-Band AP Low/Med737.30.8137
5-Band AP Medium633.40.9473
5-Band AP Med/High576.41.0410
5-Band AP High550.61.0897
5-Band SF Bay Tour - Low1108.80.5411
5-Band SF Bay Tour - Low/Med889.20.6747
5-Band SF Bay Tour - Medium746.30.8040
5-Band SF Bay Tour - Med/High670.50.8948
5-Band SF Bay Tour - High642.80.9334
Chicago-Mac Upwind0.8124
Chicago-Mac All Purpose0.8158
Chicago-Mac Downwind0.8103
Bayview-Mac Cove Island0.5857
Bayview-Mac Shore0.5924
Harvest Moon Regatta565.11.0617
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance706.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating706.70.8491
FinRating, kevyt tuuli1279.20.7817
FinRating, kova tuuli554.80.9012
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8491
Triple Number Coastal/Long Distance Low0.7038
Triple Number Coastal/Long Distance Medium0.9322
Triple Number Coastal/Long Distance High1.0547
Triple Number Windward/Leeward Low0.5437
Triple Number Windward/Leeward Medium0.7604
Triple Number Windward/Leeward High0.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
For information
General Purpose Handicap (GPH)731.5
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low852.5
Triple Number Coastal/Long Distance Medium643.6
Triple Number Coastal/Long Distance High568.9
Triple Number Windward/Leeward Low1103.5
Triple Number Windward/Leeward Medium789.1
Triple Number Windward/Leeward High674.3
Predominantly Upwind687.3
Predominantly Downwind675.9
Predominantly Reaching639.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7038
Triple Number Coastal/Long Distance Medium0.9322
Triple Number Coastal/Long Distance High1.0547
Triple Number Windward/Leeward Low0.5437
Triple Number Windward/Leeward Medium0.7604
Triple Number Windward/Leeward High0.8898
Coastal/Long Distance0.8491
Predominantly Upwind0.8729
Predominantly Downwind0.8877
For information
General Purpose Handicap (GPH)731.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9259
Distanseseilas Trippeltall svak vind0.7038
Distanseseilas Trippeltall mellomvind0.9322
Distanseseilas Trippeltall sterk vind1.0547
Pølsebane Trippeltall svak vind0.5437
Pølsebane Trippeltall mellomvind0.7604
Pølsebane Trippeltall sterk vind0.8898
Motvind Singeltall0.8729
Medvind Singeltall0.8877
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Coastal/Long Distance706.70.8491
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind687.30.8729
Predominantly Downwind675.90.8877
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore641.90.9347
Cape Doctor Coastal538.71.1139
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7038
Triple Number Coastal/Long Distance Medium0.9322
Triple Number Coastal/Long Distance High1.0547
Triple Number Windward/Leeward Low0.5437
Triple Number Windward/Leeward Medium0.7604
Triple Number Windward/Leeward High0.8898
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7038
Triple Number Coastal/Long Distance Medium0.9322
Triple Number Coastal/Long Distance High1.0547
Triple Number Windward/Leeward Low0.5437
Triple Number Windward/Leeward Medium0.7604
Triple Number Windward/Leeward High0.8898
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Predominantly Upwind687.30.8729
Predominantly Downwind675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance706.70.8491
Triple Number Coastal/Long Distance Low852.50.7038
Triple Number Coastal/Long Distance Medium643.60.9322
Triple Number Coastal/Long Distance High568.91.0547
Triple Number Windward/Leeward Low1103.50.5437
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1891.41237.3920.8757.6662.9614.8580.0526.3507.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low852.50.7038
Triple Number AP Medium643.70.9321
Triple Number AP High568.91.0547
Triple Number Windward/Leeward Low1154.90.5195
Triple Number Windward/Leeward Medium789.10.7604
Triple Number Windward/Leeward High674.30.8898
Single Number Predominant Upwind715.20.8389
Single Number Predominant Reaching649.50.9238
Single Number Predominant Downwind710.70.8442
Predominant Upwind - Low994.30.6034
Predominant Upwind - Low/Med757.00.7926
Predominant Upwind - Medium663.20.9047
Predominant Upwind - Med/High617.60.9715
Predominant Upwind - High602.00.9967
Predominant Downwind Low1084.10.5534
Predominant Downwind Low/Med780.30.7689
Predominant Downwind Medium648.20.9257
Predominant Downwind Med/High569.21.0542
Predominant Downwind High530.31.1315
Predominant Reaching Low920.60.6517
Predominant Reaching Low/Med694.70.8636
Predominant Reaching Medium602.90.9951
Predominant Reaching Med/High550.21.0905
Predominant Reaching High522.91.1475
SA/DSPL Upwind22.87SA/DSPL Downwind22.87
Scoring OptionTODTOT
5-Band Windward/Leeward Low1298.30.4621
5-Band Windward/Leeward Low/Med932.50.6435
5-Band Windward/Leeward Medium772.70.7765
5-Band Windward/Leeward Med/High684.20.8770
5-Band Windward/Leeward High652.60.9195
Windward/Leeward 60-40 Low1281.90.4680
Windward/Leeward 60-40 Low/Med931.50.6441
Windward/Leeward 60-40 Medium781.40.7679
Windward/Leeward 60-40 Med/High702.20.8545
Windward/Leeward 60-40 High676.50.8869
5-Band AP Low957.10.6269
5-Band AP Low/Med737.30.8137
5-Band AP Medium633.40.9473
5-Band AP Med/High576.41.0410
5-Band AP High550.61.0897
5-Band SF Bay Tour - Low1108.80.5411
5-Band SF Bay Tour - Low/Med889.20.6747
5-Band SF Bay Tour - Medium746.30.8040
5-Band SF Bay Tour - Med/High670.50.8948
5-Band SF Bay Tour - High642.80.9334
Chicago-Mac Upwind0.8124
Chicago-Mac All Purpose0.8158
Chicago-Mac Downwind0.8103
Bayview-Mac Cove Island0.5857
Bayview-Mac Shore0.5924
Harvest Moon Regatta565.11.0617
Non Spin/HSFClub Certificate2025
Madam LarsenNOR 7213
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassLARSEN 28MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.823Max. Beam2.648Draft1.538Displacement2,716Wetted area16.01IMS L7.791LSM07.561Acc. length8.606Sink (kg/mm) 12.28
VCGD-0.080VCGM-0.022RM Rated (kg·m) 53.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight462Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.340PBWPIPA0.0036
EDL0.770ST10.070ST20.180
ST30.180ST40.110ST50.300
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders1Rotating mastNo
P10.500IG9.600ISP9.600MDT10.100MDL10.130MDT20.090MDL20.090TL2.250MW0.130GO0.140
E3.700J3.380BAS1.130FSDFoilSFJ0.000SPL3.430WPLTPS0.000BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.080Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
Madam LarsenNOR 7213
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment5176-2004012412000.120.001.282.233.0022.4001/01/1753
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment5176-2004012412010.000.000.000.000.004.619.49NoNo 22.2701/01/1753
CRUISER/RACER REQUIREMENTS*
Accommodation length8.6 mTable area0.33 m²Headroom1.55 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity39 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity22 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.