Club Certificate2025
BØRNOR 4253
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 Angles44.8°44.8°43.0°41.9°40.9°40.2°40.0°39.9°41.2°
Beat VMG2.032.803.403.844.174.384.484.524.41
52°3.204.335.165.726.086.306.426.486.47
60°3.424.595.415.946.276.476.606.706.72
75°3.544.745.576.116.436.656.827.047.13
90°3.424.655.586.226.576.786.907.247.46
110°3.424.695.676.316.686.987.237.637.85
120°3.284.535.516.216.636.957.247.778.22
135°2.924.105.095.886.416.767.077.678.28
150°2.453.554.545.366.026.466.787.377.94
Run VMG2.123.073.944.685.335.886.306.907.43
Gybe Angles148.3°148.3°151.9°155.9°160.6°166.2°173.6°178.1°178.1°
APH ToD:655.4CDL: 6.961APH ToT: 0.9155CertNo:8821
BOAT
ClassMAXI 95DesignerPellePettersonBuilderMaxi YachtsAge date01/1981Series date01/1973Offset fileGR0030.BOFData file8821
HULL
Length Overall9.450 mMaximum Beam3.154 mDraft1.530 mDisplacement4,355 kgDLR8.9322IMS DivisionCruiser/RacerDynamic Allowance0.550%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight489 kg(default)Minimum weight359 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail20.8721.16Headsail Luffed27.2027.20Headsail FlyingSymmetric56.4356.43Asymmetric
STORM SAIL AREAS (m²)
Trysail6.31Storm Jib7.04Heavy Weather Jib18.99
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
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.
Club Certificate2025
BØRNOR 4253
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 VMG1774.21286.51058.4937.1863.7821.5803.2797.2816.2
52°1123.6830.8698.1629.1592.0571.6560.4555.3556.7
60°1051.6784.4665.9605.9574.6556.5545.2537.6535.9
75°1016.4759.7646.2588.9559.7541.5528.1511.3505.2
90°1053.9774.1645.4579.1548.2531.1521.6497.6482.5
110°1053.1767.2635.3570.7538.6516.0497.6471.7458.3
120°1096.1794.9653.5579.5542.9518.3497.3463.6437.8
135°1231.1877.6706.8611.9561.8532.6509.2469.2434.6
150°1469.91014.5792.6671.9598.1556.9530.6488.8453.3
Run VMG1698.51171.4913.6769.8675.6612.7571.5521.6484.4
Selected Courses
Windward / Leeward1734.61229.0986.0853.4769.6717.1687.4659.4650.3
All purpose1318.4949.8775.7682.8629.4597.3577.8554.7543.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward806.80.7437
All purpose655.40.9155
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6395
Downwind "popa"0.8021
70% up, 30% down "Ilhabela"0.6809
30% up, 70% down "Ilhabela-inverso"0.7453
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Predominantly Upwind713.70.8407
Predominantly Downwind662.80.9052
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low862.80.6954
Triple Number AP Medium651.40.9211
Triple Number AP High574.01.0453
Triple Number Windward/Leeward Low1157.10.5185
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Single Number Predominant Upwind743.60.8069
Single Number Predominant Reaching653.90.9175
Single Number Predominant Downwind693.40.8652
Predominant Upwind - Low1051.00.5709
Predominant Upwind - Low/Med794.70.7550
Predominant Upwind - Medium687.70.8724
Predominant Upwind - Med/High631.80.9497
Predominant Upwind - High614.20.9770
Predominant Downwind Low1036.00.5792
Predominant Downwind Low/Med757.40.7922
Predominant Downwind Medium636.10.9432
Predominant Downwind Med/High564.01.0639
Predominant Downwind High527.71.1371
Predominant Reaching Low931.00.6445
Predominant Reaching Low/Med700.60.8564
Predominant Reaching Medium605.70.9906
Predominant Reaching Med/High553.81.0835
Predominant Reaching High527.51.1375
SA/DSPL Upwind17.94SA/DSPL Downwind28.85
Scoring OptionTODTOT
5-Band Windward/Leeward Low1295.10.4633
5-Band Windward/Leeward Low/Med943.10.6362
5-Band Windward/Leeward Medium786.00.7634
5-Band Windward/Leeward Med/High694.60.8638
5-Band Windward/Leeward High662.70.9054
Windward/Leeward 60-40 Low1306.30.4593
Windward/Leeward 60-40 Low/Med958.60.6259
Windward/Leeward 60-40 Medium804.80.7456
Windward/Leeward 60-40 Med/High717.70.8360
Windward/Leeward 60-40 High690.40.8690
5-Band AP Low952.70.6298
5-Band AP Low/Med747.00.8032
5-Band AP Medium640.80.9364
5-Band AP Med/High581.51.0318
5-Band AP High556.81.0776
5-Band SF Bay Tour - Low1119.40.5360
5-Band SF Bay Tour - Low/Med905.10.6629
5-Band SF Bay Tour - Medium761.50.7879
5-Band SF Bay Tour - Med/High680.50.8817
5-Band SF Bay Tour - High652.10.9201
Chicago-Mac Upwind0.7780
Chicago-Mac All Purpose0.8074
Chicago-Mac Downwind0.8322
Bayview-Mac Cove Island0.5830
Bayview-Mac Shore0.5868
Harvest Moon Regatta565.11.0618
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance714.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating714.00.8403
FinRating, kevyt tuuli1272.00.7862
FinRating, kova tuuli561.00.8913
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8403
Triple Number Coastal/Long Distance Low0.6954
Triple Number Coastal/Long Distance Medium0.9212
Triple Number Coastal/Long Distance High1.0453
Triple Number Windward/Leeward Low0.5418
Triple Number Windward/Leeward Medium0.7477
Triple Number Windward/Leeward High0.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
For information
General Purpose Handicap (GPH)739.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low862.8
Triple Number Coastal/Long Distance Medium651.3
Triple Number Coastal/Long Distance High574.0
Triple Number Windward/Leeward Low1107.4
Triple Number Windward/Leeward Medium802.5
Triple Number Windward/Leeward High684.3
Predominantly Upwind713.7
Predominantly Downwind662.8
Predominantly Reaching637.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6954
Triple Number Coastal/Long Distance Medium0.9212
Triple Number Coastal/Long Distance High1.0453
Triple Number Windward/Leeward Low0.5418
Triple Number Windward/Leeward Medium0.7477
Triple Number Windward/Leeward High0.8768
Coastal/Long Distance0.8403
Predominantly Upwind0.8407
Predominantly Downwind0.9052
For information
General Purpose Handicap (GPH)739.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9155
Distanseseilas Trippeltall svak vind0.6954
Distanseseilas Trippeltall mellomvind0.9212
Distanseseilas Trippeltall sterk vind1.0453
Pølsebane Trippeltall svak vind0.5418
Pølsebane Trippeltall mellomvind0.7477
Pølsebane Trippeltall sterk vind0.8768
Motvind Singeltall0.8407
Medvind Singeltall0.9052
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Coastal/Long Distance714.00.8403
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind713.70.8407
Predominantly Downwind662.80.9052
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore653.10.9188
Cape Doctor Coastal547.01.0969
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6954
Triple Number Coastal/Long Distance Medium0.9212
Triple Number Coastal/Long Distance High1.0453
Triple Number Windward/Leeward Low0.5418
Triple Number Windward/Leeward Medium0.7477
Triple Number Windward/Leeward High0.8768
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6954
Triple Number Coastal/Long Distance Medium0.9212
Triple Number Coastal/Long Distance High1.0453
Triple Number Windward/Leeward Low0.5418
Triple Number Windward/Leeward Medium0.7477
Triple Number Windward/Leeward High0.8768
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Predominantly Upwind713.70.8407
Predominantly Downwind662.80.9052
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low862.80.6954
Triple Number Coastal/Long Distance Medium651.30.9212
Triple Number Coastal/Long Distance High574.01.0453
Triple Number Windward/Leeward Low1107.40.5418
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1831.61223.2926.7768.8672.6620.0584.1530.6515.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low862.80.6954
Triple Number AP Medium651.40.9211
Triple Number AP High574.01.0453
Triple Number Windward/Leeward Low1157.10.5185
Triple Number Windward/Leeward Medium802.50.7477
Triple Number Windward/Leeward High684.30.8768
Single Number Predominant Upwind743.60.8069
Single Number Predominant Reaching653.90.9175
Single Number Predominant Downwind693.40.8652
Predominant Upwind - Low1051.00.5709
Predominant Upwind - Low/Med794.70.7550
Predominant Upwind - Medium687.70.8724
Predominant Upwind - Med/High631.80.9497
Predominant Upwind - High614.20.9770
Predominant Downwind Low1036.00.5792
Predominant Downwind Low/Med757.40.7922
Predominant Downwind Medium636.10.9432
Predominant Downwind Med/High564.01.0639
Predominant Downwind High527.71.1371
Predominant Reaching Low931.00.6445
Predominant Reaching Low/Med700.60.8564
Predominant Reaching Medium605.70.9906
Predominant Reaching Med/High553.81.0835
Predominant Reaching High527.51.1375
SA/DSPL Upwind17.94SA/DSPL Downwind28.85
Scoring OptionTODTOT
5-Band Windward/Leeward Low1295.10.4633
5-Band Windward/Leeward Low/Med943.10.6362
5-Band Windward/Leeward Medium786.00.7634
5-Band Windward/Leeward Med/High694.60.8638
5-Band Windward/Leeward High662.70.9054
Windward/Leeward 60-40 Low1306.30.4593
Windward/Leeward 60-40 Low/Med958.60.6259
Windward/Leeward 60-40 Medium804.80.7456
Windward/Leeward 60-40 Med/High717.70.8360
Windward/Leeward 60-40 High690.40.8690
5-Band AP Low952.70.6298
5-Band AP Low/Med747.00.8032
5-Band AP Medium640.80.9364
5-Band AP Med/High581.51.0318
5-Band AP High556.81.0776
5-Band SF Bay Tour - Low1119.40.5360
5-Band SF Bay Tour - Low/Med905.10.6629
5-Band SF Bay Tour - Medium761.50.7879
5-Band SF Bay Tour - Med/High680.50.8817
5-Band SF Bay Tour - High652.10.9201
Chicago-Mac Upwind0.7780
Chicago-Mac All Purpose0.8074
Chicago-Mac Downwind0.8322
Bayview-Mac Cove Island0.5830
Bayview-Mac Shore0.5868
Harvest Moon Regatta565.11.0618
Club Certificate2025
BØRNOR 4253
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMAXI 95MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.450Max. Beam3.154Draft1.530Displacement4,355Wetted area20.81IMS L7.944LSM07.870Acc. length9.254Sink (kg/mm) 14.37
VCGD0.000VCGM-0.018RM Rated (kg·m) 75.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight489Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0014
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayFixedMast materialAluminumSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P10.600IG11.680ISP11.690MDT10.130MDL10.160MDT20.130MDL20.160TL0.000MW0.160GO0.210
E3.400J3.320BAS1.090FSD0.000SFJ0.000SPL3.370WPLTPS0.000BD0.000MWT0.00MCG0.000
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
Club Certificate2025
BØRNOR 4253
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment376-2005052911010.150.001.152.062.7920.8729/05/2005
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment394-2014051312000.050.541.002.293.724.7911.51NoNo 27.2013/05/2014
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment376-20050529120211.6011.6011.605.780.0056.4329/05/2005
CRUISER/RACER REQUIREMENTS*
Accommodation length9.3 mTable area0.44 m²Headroom1.65 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity66 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity36 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.