Double HandedClub Certificate2025
MAJICNED 4887
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 Angles42.7°42.7°40.7°39.5°39.4°39.6°39.8°40.9°44.1°
Beat VMG2.363.243.904.194.294.334.354.304.02
52°3.674.915.736.066.176.246.286.306.15
60°3.905.165.936.256.376.456.506.546.47
75°4.085.336.086.436.636.756.846.936.94
90°3.945.266.106.476.766.997.157.377.49
110°3.945.296.216.667.007.237.437.728.13
120°3.765.116.086.627.047.437.778.318.43
135°3.274.575.616.326.807.267.769.1410.84
150°2.633.804.885.776.406.857.318.4110.73
Run VMG2.273.304.235.025.726.256.677.519.29
Gybe Angles145.6°145.6°150.5°155.0°162.4°169.6°174.5°169.3°145.8°
APH ToD:622.2CDL: 6.841APH ToT: 0.9643CertNo:none
BOAT
ClassJ-27DesignerR.JohnstoneBuilderD.P.YachtingAge date04/1992Series date01/1983Offset fileJ-27.offData fileNED4887
HULL
Length Overall8.428 mMaximum Beam2.594 mDraft1.524 mDisplacement1,828 kgDLR5.1610IMS DivisionSportboatDynamic Allowance0.180%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight160 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail22.7723.29Headsail Luffed14.7914.79Headsail FlyingSymmetric42.6942.69Asymmetric
STORM SAIL AREAS (m²)
Trysail6.73Storm Jib4.20Heavy Weather Jib11.32
SAIL LIMITS
Headsails5Spinnakers4
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
MAJICNED 4887
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 VMG1528.51109.6923.6859.1839.5831.9827.6837.8896.6
52°982.0732.8628.1594.3583.1577.1573.1571.6585.3
60°922.0698.0606.8576.0564.9558.5554.0550.8556.6
75°882.7675.3592.5559.5543.0533.7526.5519.2518.8
90°913.1684.9590.1556.2532.2515.2503.2488.3480.9
110°914.1680.4580.1540.2514.6498.2484.7466.1443.0
120°957.5704.1592.0544.2511.3484.7463.2433.2427.1
135°1099.9788.4642.0569.4529.4495.6463.9393.7332.2
150°1370.9946.2738.0624.1562.5525.5492.6428.3335.6
Run VMG1584.11092.6851.8716.5629.6576.4540.1479.5387.5
Selected Courses
Windward / Leeward1555.11101.1887.7787.8734.6704.1683.8658.6642.0
All purpose1166.5846.3700.8637.6604.5584.1568.5545.9532.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward763.90.7855
All purpose622.20.9643
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6743
Downwind "popa"0.8595
70% up, 30% down "Ilhabela"0.7209
30% up, 70% down "Ilhabela-inverso"0.7941
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Predominantly Upwind677.50.8856
Predominantly Downwind619.90.9678
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low773.60.7756
Triple Number AP Medium618.50.9701
Triple Number AP High563.91.0639
Triple Number Windward/Leeward Low1040.60.5766
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Single Number Predominant Upwind704.30.8519
Single Number Predominant Reaching613.70.9777
Single Number Predominant Downwind646.40.9282
Predominant Upwind - Low926.60.6476
Predominant Upwind - Low/Med726.00.8265
Predominant Upwind - Medium661.50.9070
Predominant Upwind - Med/High631.40.9503
Predominant Upwind - High620.80.9664
Predominant Downwind Low937.50.6400
Predominant Downwind Low/Med699.00.8584
Predominant Downwind Medium601.10.9981
Predominant Downwind Med/High536.71.1179
Predominant Downwind High490.41.2236
Predominant Reaching Low829.50.7233
Predominant Reaching Low/Med646.00.9288
Predominant Reaching Medium578.31.0375
Predominant Reaching Med/High534.91.1217
Predominant Reaching High505.71.1865
SA/DSPL Upwind25.08SA/DSPL Downwind43.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1161.50.5166
5-Band Windward/Leeward Low/Med861.30.6966
5-Band Windward/Leeward Medium746.80.8034
5-Band Windward/Leeward Med/High687.30.8730
5-Band Windward/Leeward High660.10.9089
Windward/Leeward 60-40 Low1162.80.5160
Windward/Leeward 60-40 Low/Med872.20.6879
Windward/Leeward 60-40 Medium766.90.7823
Windward/Leeward 60-40 Med/High716.00.8379
Windward/Leeward 60-40 High697.30.8604
5-Band AP Low853.10.7033
5-Band AP Low/Med685.70.8750
5-Band AP Medium611.60.9811
5-Band AP Med/High570.41.0520
5-Band AP High547.51.0958
5-Band SF Bay Tour - Low998.30.6010
5-Band SF Bay Tour - Low/Med824.90.7274
5-Band SF Bay Tour - Medium724.50.8282
5-Band SF Bay Tour - Med/High672.40.8923
5-Band SF Bay Tour - High647.60.9265
Chicago-Mac Upwind0.8314
Chicago-Mac All Purpose0.8650
Chicago-Mac Downwind0.8949
Bayview-Mac Cove Island0.6426
Bayview-Mac Shore0.6477
Harvest Moon Regatta534.91.1218
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance674.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8891
Triple Number Coastal/Long Distance Low0.7756
Triple Number Coastal/Long Distance Medium0.9702
Triple Number Coastal/Long Distance High1.0639
Triple Number Windward/Leeward Low0.6034
Triple Number Windward/Leeward Medium0.7921
Triple Number Windward/Leeward High0.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
For information
General Purpose Handicap (GPH)692.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low773.6
Triple Number Coastal/Long Distance Medium618.4
Triple Number Coastal/Long Distance High564.0
Triple Number Windward/Leeward Low994.4
Triple Number Windward/Leeward Medium757.5
Triple Number Windward/Leeward High679.5
Predominantly Upwind677.5
Predominantly Downwind619.9
Predominantly Reaching598.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7756
Triple Number Coastal/Long Distance Medium0.9702
Triple Number Coastal/Long Distance High1.0639
Triple Number Windward/Leeward Low0.6034
Triple Number Windward/Leeward Medium0.7921
Triple Number Windward/Leeward High0.8830
Coastal/Long Distance0.8891
Predominantly Upwind0.8856
Predominantly Downwind0.9678
For information
General Purpose Handicap (GPH)692.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9643
Distanseseilas Trippeltall svak vind0.7756
Distanseseilas Trippeltall mellomvind0.9702
Distanseseilas Trippeltall sterk vind1.0639
Pølsebane Trippeltall svak vind0.6034
Pølsebane Trippeltall mellomvind0.7921
Pølsebane Trippeltall sterk vind0.8830
Motvind Singeltall0.8856
Medvind Singeltall0.9678
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Coastal/Long Distance674.90.8891
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind677.50.8856
Predominantly Downwind619.90.9678
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore647.00.9273
Cape Doctor Coastal536.61.1182
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7756
Triple Number Coastal/Long Distance Medium0.9702
Triple Number Coastal/Long Distance High1.0639
Triple Number Windward/Leeward Low0.6034
Triple Number Windward/Leeward Medium0.7921
Triple Number Windward/Leeward High0.8830
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7756
Triple Number Coastal/Long Distance Medium0.9702
Triple Number Coastal/Long Distance High1.0639
Triple Number Windward/Leeward Low0.6034
Triple Number Windward/Leeward Medium0.7921
Triple Number Windward/Leeward High0.8830
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Predominantly Upwind677.50.8856
Predominantly Downwind619.90.9678
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.90.8891
Triple Number Coastal/Long Distance Low773.60.7756
Triple Number Coastal/Long Distance Medium618.40.9702
Triple Number Coastal/Long Distance High564.01.0639
Triple Number Windward/Leeward Low994.40.6034
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1653.71100.2836.5713.9645.3605.8572.3518.2504.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low773.60.7756
Triple Number AP Medium618.50.9701
Triple Number AP High563.91.0639
Triple Number Windward/Leeward Low1040.60.5766
Triple Number Windward/Leeward Medium757.50.7921
Triple Number Windward/Leeward High679.50.8830
Single Number Predominant Upwind704.30.8519
Single Number Predominant Reaching613.70.9777
Single Number Predominant Downwind646.40.9282
Predominant Upwind - Low926.60.6476
Predominant Upwind - Low/Med726.00.8265
Predominant Upwind - Medium661.50.9070
Predominant Upwind - Med/High631.40.9503
Predominant Upwind - High620.80.9664
Predominant Downwind Low937.50.6400
Predominant Downwind Low/Med699.00.8584
Predominant Downwind Medium601.10.9981
Predominant Downwind Med/High536.71.1179
Predominant Downwind High490.41.2236
Predominant Reaching Low829.50.7233
Predominant Reaching Low/Med646.00.9288
Predominant Reaching Medium578.31.0375
Predominant Reaching Med/High534.91.1217
Predominant Reaching High505.71.1865
SA/DSPL Upwind25.08SA/DSPL Downwind43.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1161.50.5166
5-Band Windward/Leeward Low/Med861.30.6966
5-Band Windward/Leeward Medium746.80.8034
5-Band Windward/Leeward Med/High687.30.8730
5-Band Windward/Leeward High660.10.9089
Windward/Leeward 60-40 Low1162.80.5160
Windward/Leeward 60-40 Low/Med872.20.6879
Windward/Leeward 60-40 Medium766.90.7823
Windward/Leeward 60-40 Med/High716.00.8379
Windward/Leeward 60-40 High697.30.8604
5-Band AP Low853.10.7033
5-Band AP Low/Med685.70.8750
5-Band AP Medium611.60.9811
5-Band AP Med/High570.41.0520
5-Band AP High547.51.0958
5-Band SF Bay Tour - Low998.30.6010
5-Band SF Bay Tour - Low/Med824.90.7274
5-Band SF Bay Tour - Medium724.50.8282
5-Band SF Bay Tour - Med/High672.40.8923
5-Band SF Bay Tour - High647.60.9265
Chicago-Mac Upwind0.8314
Chicago-Mac All Purpose0.8650
Chicago-Mac Downwind0.8949
Bayview-Mac Cove Island0.6426
Bayview-Mac Shore0.6477
Harvest Moon Regatta534.91.1218
Double HandedClub Certificate2025
MAJICNED 4887
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-27Measurement11/05/1992HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.428Max. Beam2.594Draft1.524Displacement1,828Wetted area13.52IMS L7.356LSM07.075Acc. length8.428Sink (kg/mm) 10.55
VCGD0.115VCGM0.101RM Rated (kg·m) 35.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight160
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P10.080IG9.090ISP9.190MDT10.084MDL10.129MDT20.058MDL20.105TL1.250MW0.129GO0.152
E3.810J3.200BAS1.090FSD0.026SFJ0.000SPL3.280WPLTPSBD0.105MWT63.00MCG3.350
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered35.3Flotation Date09/03/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
MAJICNED 4887
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment2025 DH0.180.811.442.433.1722.77
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment2025 DH0.080.470.871.612.353.089.27NoNo 14.79
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment2025 DH9.209.209.205.585.5242.69