Double HandedClub 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 Angles44.5°44.5°42.3°41.4°41.4°41.6°41.4°42.2°44.0°
Beat VMG2.062.833.423.814.064.204.254.214.05
52°3.244.345.125.665.996.176.256.266.17
60°3.454.595.365.886.196.376.476.516.49
75°3.584.755.546.076.386.586.736.876.93
90°3.504.685.536.146.476.666.857.147.31
110°3.454.715.666.286.656.927.167.447.62
120°3.314.565.536.216.626.927.217.707.99
135°2.954.135.135.916.426.777.097.698.29
150°2.473.574.575.396.046.486.817.418.02
Run VMG2.143.103.964.705.365.906.326.937.48
Gybe Angles148.0°148.0°152.1°155.7°160.6°166.4°174.5°178.1°178.1°
APH ToD:661.8CDL: 6.772APH ToT: 0.9066CertNo: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 Allowance0.580%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight170 kg(default)Minimum weight120 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.
Double HandedClub 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 VMG1751.31274.11053.9944.4886.1857.0846.1855.5889.7
52°1110.6828.8702.9636.3601.4583.5576.5575.3583.4
60°1043.2785.0671.9612.1581.5565.0556.5552.8554.7
75°1006.0757.6649.4593.2564.2547.0535.3524.0519.4
90°1029.8769.1651.6586.3556.0540.8525.8504.3492.3
110°1044.1764.0635.8573.1541.6520.2503.1484.0472.3
120°1086.9789.8651.1579.7543.9520.0499.6467.7450.5
135°1220.1870.7702.3609.1560.4531.5508.0468.3434.1
150°1457.31007.2787.7668.1595.6555.3528.8485.9449.1
Run VMG1684.41163.0908.0765.5672.2610.4569.9519.7481.3
Selected Courses
Windward / Leeward1716.01218.6980.9854.9779.2733.7708.0687.6685.5
All purpose1303.1943.4774.6685.5636.2607.9590.3572.5566.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward815.70.7356
All purpose661.80.9066
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6253
Downwind "popa"0.8063
70% up, 30% down "Ilhabela"0.6704
30% up, 70% down "Ilhabela-inverso"0.7419
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Predominantly Upwind723.30.8295
Predominantly Downwind664.10.9035
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low859.00.6985
Triple Number AP Medium657.20.9130
Triple Number AP High588.01.0204
Triple Number Windward/Leeward Low1149.00.5222
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Single Number Predominant Upwind753.40.7964
Single Number Predominant Reaching658.00.9119
Single Number Predominant Downwind694.60.8639
Predominant Upwind - Low1043.20.5752
Predominant Upwind - Low/Med797.20.7526
Predominant Upwind - Medium698.60.8589
Predominant Upwind - Med/High651.30.9213
Predominant Upwind - High640.60.9367
Predominant Downwind Low1028.20.5836
Predominant Downwind Low/Med756.00.7936
Predominant Downwind Medium638.40.9399
Predominant Downwind Med/High569.01.0546
Predominant Downwind High534.71.1222
Predominant Reaching Low924.00.6494
Predominant Reaching Low/Med702.20.8544
Predominant Reaching Medium611.30.9815
Predominant Reaching Med/High561.81.0680
Predominant Reaching High538.01.1152
SA/DSPL Upwind17.94SA/DSPL Downwind28.85
Scoring OptionTODTOT
5-Band Windward/Leeward Low1284.00.4673
5-Band Windward/Leeward Low/Med941.70.6371
5-Band Windward/Leeward Medium795.00.7547
5-Band Windward/Leeward Med/High714.90.8393
5-Band Windward/Leeward High690.80.8686
Windward/Leeward 60-40 Low1294.80.4634
Windward/Leeward 60-40 Low/Med958.00.6263
Windward/Leeward 60-40 Medium816.30.7350
Windward/Leeward 60-40 Med/High742.50.8081
Windward/Leeward 60-40 High724.60.8281
5-Band AP Low946.70.6338
5-Band AP Low/Med747.60.8026
5-Band AP Medium647.40.9268
5-Band AP Med/High594.11.0099
5-Band AP High574.51.0444
5-Band SF Bay Tour - Low1110.70.5402
5-Band SF Bay Tour - Low/Med904.20.6636
5-Band SF Bay Tour - Medium771.00.7782
5-Band SF Bay Tour - Med/High701.10.8558
5-Band SF Bay Tour - High680.60.8816
Chicago-Mac Upwind0.7705
Chicago-Mac All Purpose0.8031
Chicago-Mac Downwind0.8319
Bayview-Mac Cove Island0.5853
Bayview-Mac Shore0.5891
Harvest Moon Regatta568.41.0555
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance719.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating719.80.8335
FinRating, kevyt tuuli1261.10.7930
FinRating, kova tuuli577.90.8652
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8335
Triple Number Coastal/Long Distance Low0.6985
Triple Number Coastal/Long Distance Medium0.9131
Triple Number Coastal/Long Distance High1.0204
Triple Number Windward/Leeward Low0.5456
Triple Number Windward/Leeward Medium0.7409
Triple Number Windward/Leeward High0.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
For information
General Purpose Handicap (GPH)744.4
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low859.0
Triple Number Coastal/Long Distance Medium657.1
Triple Number Coastal/Long Distance High588.0
Triple Number Windward/Leeward Low1099.7
Triple Number Windward/Leeward Medium809.8
Triple Number Windward/Leeward High706.8
Predominantly Upwind723.3
Predominantly Downwind664.1
Predominantly Reaching640.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6985
Triple Number Coastal/Long Distance Medium0.9131
Triple Number Coastal/Long Distance High1.0204
Triple Number Windward/Leeward Low0.5456
Triple Number Windward/Leeward Medium0.7409
Triple Number Windward/Leeward High0.8489
Coastal/Long Distance0.8335
Predominantly Upwind0.8295
Predominantly Downwind0.9035
For information
General Purpose Handicap (GPH)744.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9066
Distanseseilas Trippeltall svak vind0.6985
Distanseseilas Trippeltall mellomvind0.9131
Distanseseilas Trippeltall sterk vind1.0204
Pølsebane Trippeltall svak vind0.5456
Pølsebane Trippeltall mellomvind0.7409
Pølsebane Trippeltall sterk vind0.8489
Motvind Singeltall0.8295
Medvind Singeltall0.9035
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Coastal/Long Distance719.80.8335
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind723.30.8295
Predominantly Downwind664.10.9035
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore686.10.8745
Cape Doctor Coastal568.31.0558
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6985
Triple Number Coastal/Long Distance Medium0.9131
Triple Number Coastal/Long Distance High1.0204
Triple Number Windward/Leeward Low0.5456
Triple Number Windward/Leeward Medium0.7409
Triple Number Windward/Leeward High0.8489
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6985
Triple Number Coastal/Long Distance Medium0.9131
Triple Number Coastal/Long Distance High1.0204
Triple Number Windward/Leeward Low0.5456
Triple Number Windward/Leeward Medium0.7409
Triple Number Windward/Leeward High0.8489
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Predominantly Upwind723.30.8295
Predominantly Downwind664.10.9035
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance719.80.8335
Triple Number Coastal/Long Distance Low859.00.6985
Triple Number Coastal/Long Distance Medium657.10.9131
Triple Number Coastal/Long Distance High588.01.0204
Triple Number Windward/Leeward Low1099.70.5456
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1809.91213.0922.8771.0680.4631.3595.6542.1531.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low859.00.6985
Triple Number AP Medium657.20.9130
Triple Number AP High588.01.0204
Triple Number Windward/Leeward Low1149.00.5222
Triple Number Windward/Leeward Medium809.80.7409
Triple Number Windward/Leeward High706.80.8489
Single Number Predominant Upwind753.40.7964
Single Number Predominant Reaching658.00.9119
Single Number Predominant Downwind694.60.8639
Predominant Upwind - Low1043.20.5752
Predominant Upwind - Low/Med797.20.7526
Predominant Upwind - Medium698.60.8589
Predominant Upwind - Med/High651.30.9213
Predominant Upwind - High640.60.9367
Predominant Downwind Low1028.20.5836
Predominant Downwind Low/Med756.00.7936
Predominant Downwind Medium638.40.9399
Predominant Downwind Med/High569.01.0546
Predominant Downwind High534.71.1222
Predominant Reaching Low924.00.6494
Predominant Reaching Low/Med702.20.8544
Predominant Reaching Medium611.30.9815
Predominant Reaching Med/High561.81.0680
Predominant Reaching High538.01.1152
SA/DSPL Upwind17.94SA/DSPL Downwind28.85
Scoring OptionTODTOT
5-Band Windward/Leeward Low1284.00.4673
5-Band Windward/Leeward Low/Med941.70.6371
5-Band Windward/Leeward Medium795.00.7547
5-Band Windward/Leeward Med/High714.90.8393
5-Band Windward/Leeward High690.80.8686
Windward/Leeward 60-40 Low1294.80.4634
Windward/Leeward 60-40 Low/Med958.00.6263
Windward/Leeward 60-40 Medium816.30.7350
Windward/Leeward 60-40 Med/High742.50.8081
Windward/Leeward 60-40 High724.60.8281
5-Band AP Low946.70.6338
5-Band AP Low/Med747.60.8026
5-Band AP Medium647.40.9268
5-Band AP Med/High594.11.0099
5-Band AP High574.51.0444
5-Band SF Bay Tour - Low1110.70.5402
5-Band SF Bay Tour - Low/Med904.20.6636
5-Band SF Bay Tour - Medium771.00.7782
5-Band SF Bay Tour - Med/High701.10.8558
5-Band SF Bay Tour - High680.60.8816
Chicago-Mac Upwind0.7705
Chicago-Mac All Purpose0.8031
Chicago-Mac Downwind0.8319
Bayview-Mac Cove Island0.5853
Bayview-Mac Shore0.5891
Harvest Moon Regatta568.41.0555
Double HandedClub 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 L7.865LSM07.870Acc. length9.254Sink (kg/mm) 14.37
VCGD0.000VCGM-0.018RM Rated (kg·m) 75.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared 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
Double HandedClub 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.