Non Spin/HSFClub 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 VMG2.032.803.403.844.174.384.484.514.41
52°3.214.335.165.726.086.306.426.486.47
60°3.424.595.415.946.276.476.606.696.72
75°3.544.745.576.116.436.656.827.047.13
90°3.474.655.506.106.456.706.907.247.46
110°3.024.195.145.876.366.686.947.417.82
120°2.843.994.945.706.246.596.867.367.83
135°2.463.544.515.285.906.346.657.167.65
150°2.073.053.984.765.435.986.376.907.38
Run VMG1.792.643.464.194.855.445.946.617.08
Gybe Angles149.3°149.3°154.1°162.2°170.3°174.5°177.7°179.5°179.5°
APH ToD:681.7CDL: 6.962APH ToT: 0.8801CertNo: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 FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail6.31Storm Jib7.04Heavy Weather Jib18.99
SAIL LIMITS
Headsails1
✱ One set on the forestay
✱ 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
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 VMG1773.51286.11058.1936.8863.5821.4803.3797.4816.5
52°1123.1830.6697.9629.0591.9571.5560.4555.3556.8
60°1051.3784.2665.7605.7574.5556.4545.2537.8535.9
75°1016.1759.4646.0588.7559.6541.5528.1511.3505.2
90°1038.4773.8654.7590.4557.9537.6522.0497.5482.4
110°1191.7859.4701.0613.1566.0539.1518.8485.7460.6
120°1266.0902.7728.1631.6577.0546.5524.7488.8459.7
135°1463.11015.7798.9682.4609.7567.4541.4503.1470.8
150°1742.91180.2904.8755.7663.4602.1564.8521.4487.8
Run VMG2015.21362.71040.7858.6742.2662.1605.7544.7508.7
Selected Courses
Windward / Leeward1890.81324.41049.4897.7802.9741.8704.5671.1662.6
All purpose1419.21013.4819.5714.6652.6614.7591.5566.4554.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward843.90.7110
All purpose681.70.8801
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6396
Downwind "popa"0.7220
70% up, 30% down "Ilhabela"0.6623
30% up, 70% down "Ilhabela-inverso"0.6952
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Predominantly Upwind728.30.8239
Predominantly Downwind708.40.8470
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low916.50.6547
Triple Number AP Medium677.80.8852
Triple Number AP High587.91.0206
Triple Number Windward/Leeward Low1242.50.4829
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Single Number Predominant Upwind758.80.7908
Single Number Predominant Reaching681.80.8800
Single Number Predominant Downwind745.30.8051
Predominant Upwind - Low1083.50.5538
Predominant Upwind - Low/Med814.30.7368
Predominant Upwind - Medium700.30.8568
Predominant Upwind - Med/High638.90.9391
Predominant Upwind - High620.00.9677
Predominant Downwind Low1152.80.5205
Predominant Downwind Low/Med824.00.7281
Predominant Downwind Medium677.40.8857
Predominant Downwind Med/High588.01.0204
Predominant Downwind High547.31.0962
Predominant Reaching Low988.80.6068
Predominant Reaching Low/Med736.70.8145
Predominant Reaching Medium629.10.9537
Predominant Reaching Med/High567.21.0577
Predominant Reaching High539.11.1131
SA/DSPL Upwind17.94SA/DSPL Downwind17.94
Scoring OptionTODTOT
5-Band Windward/Leeward Low1398.20.4291
5-Band Windward/Leeward Low/Med1000.00.6000
5-Band Windward/Leeward Medium820.80.7310
5-Band Windward/Leeward Med/High713.50.8410
5-Band Windward/Leeward High675.40.8884
Windward/Leeward 60-40 Low1388.70.4321
Windward/Leeward 60-40 Low/Med1004.10.5976
Windward/Leeward 60-40 Medium832.60.7207
Windward/Leeward 60-40 Med/High732.80.8187
Windward/Leeward 60-40 High700.70.8563
5-Band AP Low1027.20.5841
5-Band AP Low/Med786.40.7629
5-Band AP Medium665.40.9018
5-Band AP Med/High596.31.0062
5-Band AP High568.71.0550
5-Band SF Bay Tour - Low1196.70.5014
5-Band SF Bay Tour - Low/Med955.60.6279
5-Band SF Bay Tour - Medium792.60.7570
5-Band SF Bay Tour - Med/High698.30.8592
5-Band SF Bay Tour - High665.80.9011
Chicago-Mac Upwind0.7615
Chicago-Mac All Purpose0.7705
Chicago-Mac Downwind0.7708
Bayview-Mac Cove Island0.5462
Bayview-Mac Shore0.5520
Harvest Moon Regatta586.91.0223
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance745.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating745.60.8048
FinRating, kevyt tuuli1376.30.7266
FinRating, kova tuuli573.70.8716
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8048
Triple Number Coastal/Long Distance Low0.6547
Triple Number Coastal/Long Distance Medium0.8854
Triple Number Coastal/Long Distance High1.0206
Triple Number Windward/Leeward Low0.5055
Triple Number Windward/Leeward Medium0.7145
Triple Number Windward/Leeward High0.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
For information
General Purpose Handicap (GPH)773.4
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low916.5
Triple Number Coastal/Long Distance Medium677.7
Triple Number Coastal/Long Distance High587.9
Triple Number Windward/Leeward Low1186.9
Triple Number Windward/Leeward Medium839.7
Triple Number Windward/Leeward High701.3
Predominantly Upwind728.3
Predominantly Downwind708.4
Predominantly Reaching670.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6547
Triple Number Coastal/Long Distance Medium0.8854
Triple Number Coastal/Long Distance High1.0206
Triple Number Windward/Leeward Low0.5055
Triple Number Windward/Leeward Medium0.7145
Triple Number Windward/Leeward High0.8556
Coastal/Long Distance0.8048
Predominantly Upwind0.8239
Predominantly Downwind0.8470
For information
General Purpose Handicap (GPH)773.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8801
Distanseseilas Trippeltall svak vind0.6547
Distanseseilas Trippeltall mellomvind0.8854
Distanseseilas Trippeltall sterk vind1.0206
Pølsebane Trippeltall svak vind0.5055
Pølsebane Trippeltall mellomvind0.7145
Pølsebane Trippeltall sterk vind0.8556
Motvind Singeltall0.8239
Medvind Singeltall0.8470
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Coastal/Long Distance745.60.8048
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind728.30.8239
Predominantly Downwind708.40.8470
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore665.10.9021
Cape Doctor Coastal558.21.0750
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6547
Triple Number Coastal/Long Distance Medium0.8854
Triple Number Coastal/Long Distance High1.0206
Triple Number Windward/Leeward Low0.5055
Triple Number Windward/Leeward Medium0.7145
Triple Number Windward/Leeward High0.8556
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6547
Triple Number Coastal/Long Distance Medium0.8854
Triple Number Coastal/Long Distance High1.0206
Triple Number Windward/Leeward Low0.5055
Triple Number Windward/Leeward Medium0.7145
Triple Number Windward/Leeward High0.8556
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Predominantly Upwind728.30.8239
Predominantly Downwind708.40.8470
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance745.60.8048
Triple Number Coastal/Long Distance Low916.50.6547
Triple Number Coastal/Long Distance Medium677.70.8854
Triple Number Coastal/Long Distance High587.91.0206
Triple Number Windward/Leeward Low1186.90.5055
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2031.31328.3987.2807.6698.4638.7598.2542.5526.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low916.50.6547
Triple Number AP Medium677.80.8852
Triple Number AP High587.91.0206
Triple Number Windward/Leeward Low1242.50.4829
Triple Number Windward/Leeward Medium839.70.7145
Triple Number Windward/Leeward High701.30.8556
Single Number Predominant Upwind758.80.7908
Single Number Predominant Reaching681.80.8800
Single Number Predominant Downwind745.30.8051
Predominant Upwind - Low1083.50.5538
Predominant Upwind - Low/Med814.30.7368
Predominant Upwind - Medium700.30.8568
Predominant Upwind - Med/High638.90.9391
Predominant Upwind - High620.00.9677
Predominant Downwind Low1152.80.5205
Predominant Downwind Low/Med824.00.7281
Predominant Downwind Medium677.40.8857
Predominant Downwind Med/High588.01.0204
Predominant Downwind High547.31.0962
Predominant Reaching Low988.80.6068
Predominant Reaching Low/Med736.70.8145
Predominant Reaching Medium629.10.9537
Predominant Reaching Med/High567.21.0577
Predominant Reaching High539.11.1131
SA/DSPL Upwind17.94SA/DSPL Downwind17.94
Scoring OptionTODTOT
5-Band Windward/Leeward Low1398.20.4291
5-Band Windward/Leeward Low/Med1000.00.6000
5-Band Windward/Leeward Medium820.80.7310
5-Band Windward/Leeward Med/High713.50.8410
5-Band Windward/Leeward High675.40.8884
Windward/Leeward 60-40 Low1388.70.4321
Windward/Leeward 60-40 Low/Med1004.10.5976
Windward/Leeward 60-40 Medium832.60.7207
Windward/Leeward 60-40 Med/High732.80.8187
Windward/Leeward 60-40 High700.70.8563
5-Band AP Low1027.20.5841
5-Band AP Low/Med786.40.7629
5-Band AP Medium665.40.9018
5-Band AP Med/High596.31.0062
5-Band AP High568.71.0550
5-Band SF Bay Tour - Low1196.70.5014
5-Band SF Bay Tour - Low/Med955.60.6279
5-Band SF Bay Tour - Medium792.60.7570
5-Band SF Bay Tour - Med/High698.30.8592
5-Band SF Bay Tour - High665.80.9011
Chicago-Mac Upwind0.7615
Chicago-Mac All Purpose0.7705
Chicago-Mac Downwind0.7708
Bayview-Mac Cove Island0.5462
Bayview-Mac Shore0.5520
Harvest Moon Regatta586.91.0223
Non Spin/HSFClub 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 L7.942LSM07.870Acc. 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
Non Spin/HSFClub 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
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.