Double HandedClub Certificate2025
Majic PotionNED 8180
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 Angles42.8°42.8°40.8°39.3°38.2°37.6°37.4°37.9°39.4°
Beat VMG2.453.424.204.724.995.125.195.255.16
52°3.805.186.206.797.067.197.277.357.34
60°4.045.456.446.987.257.407.497.597.60
75°4.305.766.727.127.447.677.848.038.12
90°4.536.016.967.417.697.888.068.478.70
110°4.516.057.097.617.968.308.669.319.83
120°4.385.957.057.638.138.568.909.8011.08
135°3.815.376.627.367.928.499.1410.8612.53
150°3.184.525.706.677.357.858.369.6812.81
Run VMG2.753.914.935.786.406.827.258.3811.09
Gybe Angles142.9°142.9°146.9°149.8°153.1°153.8°152.3°144.7°145.2°
APH ToD:544.7CDL: 9.064APH ToT: 1.1015CertNo:26836
BOAT
ClassJ-105DesignerJohnstoneBuilderT.P.I.Age date01/2004Series date08/1993Offset filej105.offData fileNED8180
HULL
Length Overall10.570 mMaximum Beam3.344 mDraft2.011 mDisplacement4,030 kgDLR4.6004IMS DivisionPerformanceDynamic Allowance0.190%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.374m
CREW
Maximum weight155 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail33.2433.91Headsail Luffed23.4823.48Headsail FlyingSymmetricAsymmetric108.47108.47 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail9.82Storm Jib7.63Heavy Weather Jib20.60
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
Majic PotionNED 8180
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 VMG1471.91053.8857.3762.5721.0703.3693.6686.3698.3
52°947.7694.8580.8530.2510.0501.0495.4490.1490.5
60°890.8660.6559.4515.8496.8486.7480.8474.4473.5
75°837.5624.7535.5505.4483.9469.4459.2448.4443.6
90°795.0599.0517.4485.9468.2456.7446.6425.2413.7
110°798.7595.2507.9472.9452.4433.9415.6386.8366.4
120°821.5605.4510.8471.5442.6420.8404.6367.2324.9
135°945.0671.0544.2489.0454.6423.8393.8331.5287.4
150°1133.3796.6631.9539.4489.7458.6430.8372.0281.0
Run VMG1309.6919.9729.7622.8562.4527.6496.5429.6324.5
Selected Courses
Windward / Leeward1390.6986.8793.5692.7641.7615.4595.0557.9511.4
All purpose1050.1759.3624.7560.7527.7507.8491.5462.7435.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward670.20.8952
All purpose544.71.1015
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7668
Downwind "popa"0.9793
70% up, 30% down "Ilhabela"0.8202
30% up, 70% down "Ilhabela-inverso"0.9041
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Predominantly Upwind595.41.0078
Predominantly Downwind542.31.1064
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low692.00.8671
Triple Number AP Medium541.81.1073
Triple Number AP High484.81.2377
Triple Number Windward/Leeward Low930.10.6451
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Single Number Predominant Upwind620.00.9677
Single Number Predominant Reaching536.51.1183
Single Number Predominant Downwind563.51.0648
Predominant Upwind - Low852.60.7038
Predominant Upwind - Low/Med650.60.9222
Predominant Upwind - Medium577.51.0389
Predominant Upwind - Med/High541.61.1078
Predominant Upwind - High522.31.1487
Predominant Downwind Low814.10.7370
Predominant Downwind Low/Med608.70.9858
Predominant Downwind Medium525.81.1410
Predominant Downwind Med/High469.81.2771
Predominant Downwind High422.41.4206
Predominant Reaching Low734.30.8171
Predominant Reaching Low/Med567.41.0575
Predominant Reaching Medium505.01.1882
Predominant Reaching Med/High464.61.2913
Predominant Reaching High433.31.3846
SA/DSPL Upwind22.29SA/DSPL Downwind55.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1039.50.5772
5-Band Windward/Leeward Low/Med764.00.7853
5-Band Windward/Leeward Medium654.50.9167
5-Band Windward/Leeward Med/High596.11.0065
5-Band Windward/Leeward High556.31.0785
Windward/Leeward 60-40 Low1053.40.5696
Windward/Leeward 60-40 Low/Med777.70.7715
Windward/Leeward 60-40 Medium670.40.8950
Windward/Leeward 60-40 Med/High616.20.9738
Windward/Leeward 60-40 High583.01.0292
5-Band AP Low759.20.7903
5-Band AP Low/Med607.60.9874
5-Band AP Medium534.91.1217
5-Band AP Med/High492.41.2184
5-Band AP High462.91.2962
5-Band SF Bay Tour - Low898.40.6678
5-Band SF Bay Tour - Low/Med732.30.8193
5-Band SF Bay Tour - Medium631.70.9498
5-Band SF Bay Tour - Med/High577.61.0388
5-Band SF Bay Tour - High541.81.1074
Chicago-Mac Upwind0.9395
Chicago-Mac All Purpose0.9848
Chicago-Mac Downwind1.0268
Bayview-Mac Cove Island0.7232
Bayview-Mac Shore0.7276
Harvest Moon Regatta470.41.2755
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance591.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0141
Triple Number Coastal/Long Distance Low0.8671
Triple Number Coastal/Long Distance Medium1.1074
Triple Number Coastal/Long Distance High1.2377
Triple Number Windward/Leeward Low0.6740
Triple Number Windward/Leeward Medium0.9026
Triple Number Windward/Leeward High1.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
For information
General Purpose Handicap (GPH)609.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low692.0
Triple Number Coastal/Long Distance Medium541.8
Triple Number Coastal/Long Distance High484.8
Triple Number Windward/Leeward Low890.2
Triple Number Windward/Leeward Medium664.7
Triple Number Windward/Leeward High586.2
Predominantly Upwind595.4
Predominantly Downwind542.3
Predominantly Reaching523.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8671
Triple Number Coastal/Long Distance Medium1.1074
Triple Number Coastal/Long Distance High1.2377
Triple Number Windward/Leeward Low0.6740
Triple Number Windward/Leeward Medium0.9026
Triple Number Windward/Leeward High1.0235
Coastal/Long Distance1.0141
Predominantly Upwind1.0078
Predominantly Downwind1.1064
For information
General Purpose Handicap (GPH)609.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1015
Distanseseilas Trippeltall svak vind0.8671
Distanseseilas Trippeltall mellomvind1.1074
Distanseseilas Trippeltall sterk vind1.2377
Pølsebane Trippeltall svak vind0.6740
Pølsebane Trippeltall mellomvind0.9026
Pølsebane Trippeltall sterk vind1.0235
Motvind Singeltall1.0078
Medvind Singeltall1.1064
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Coastal/Long Distance591.61.0141
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind595.41.0078
Predominantly Downwind542.31.1064
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore525.41.1420
Cape Doctor Coastal443.41.3532
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8671
Triple Number Coastal/Long Distance Medium1.1074
Triple Number Coastal/Long Distance High1.2377
Triple Number Windward/Leeward Low0.6740
Triple Number Windward/Leeward Medium0.9026
Triple Number Windward/Leeward High1.0235
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8671
Triple Number Coastal/Long Distance Medium1.1074
Triple Number Coastal/Long Distance High1.2377
Triple Number Windward/Leeward Low0.6740
Triple Number Windward/Leeward Medium0.9026
Triple Number Windward/Leeward High1.0235
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Predominantly Upwind595.41.0078
Predominantly Downwind542.31.1064
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance591.61.0141
Triple Number Coastal/Long Distance Low692.00.8671
Triple Number Coastal/Long Distance Medium541.81.1074
Triple Number Coastal/Long Distance High484.81.2377
Triple Number Windward/Leeward Low890.20.6740
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1464.1980.1745.8627.3561.9526.5497.1444.2412.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low692.00.8671
Triple Number AP Medium541.81.1073
Triple Number AP High484.81.2377
Triple Number Windward/Leeward Low930.10.6451
Triple Number Windward/Leeward Medium664.70.9026
Triple Number Windward/Leeward High586.21.0235
Single Number Predominant Upwind620.00.9677
Single Number Predominant Reaching536.51.1183
Single Number Predominant Downwind563.51.0648
Predominant Upwind - Low852.60.7038
Predominant Upwind - Low/Med650.60.9222
Predominant Upwind - Medium577.51.0389
Predominant Upwind - Med/High541.61.1078
Predominant Upwind - High522.31.1487
Predominant Downwind Low814.10.7370
Predominant Downwind Low/Med608.70.9858
Predominant Downwind Medium525.81.1410
Predominant Downwind Med/High469.81.2771
Predominant Downwind High422.41.4206
Predominant Reaching Low734.30.8171
Predominant Reaching Low/Med567.41.0575
Predominant Reaching Medium505.01.1882
Predominant Reaching Med/High464.61.2913
Predominant Reaching High433.31.3846
SA/DSPL Upwind22.29SA/DSPL Downwind55.70
Scoring OptionTODTOT
5-Band Windward/Leeward Low1039.50.5772
5-Band Windward/Leeward Low/Med764.00.7853
5-Band Windward/Leeward Medium654.50.9167
5-Band Windward/Leeward Med/High596.11.0065
5-Band Windward/Leeward High556.31.0785
Windward/Leeward 60-40 Low1053.40.5696
Windward/Leeward 60-40 Low/Med777.70.7715
Windward/Leeward 60-40 Medium670.40.8950
Windward/Leeward 60-40 Med/High616.20.9738
Windward/Leeward 60-40 High583.01.0292
5-Band AP Low759.20.7903
5-Band AP Low/Med607.60.9874
5-Band AP Medium534.91.1217
5-Band AP Med/High492.41.2184
5-Band AP High462.91.2962
5-Band SF Bay Tour - Low898.40.6678
5-Band SF Bay Tour - Low/Med732.30.8193
5-Band SF Bay Tour - Medium631.70.9498
5-Band SF Bay Tour - Med/High577.61.0388
5-Band SF Bay Tour - High541.81.1074
Chicago-Mac Upwind0.9395
Chicago-Mac All Purpose0.9848
Chicago-Mac Downwind1.0268
Bayview-Mac Cove Island0.7232
Bayview-Mac Shore0.7276
Harvest Moon Regatta470.41.2755
Double HandedClub Certificate2025
Majic PotionNED 8180
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-105Measurement22/04/2010HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.570Max. Beam3.344Draft2.011Displacement4,030Wetted area23.18IMS L9.549LSM09.568Acc. length10.570Sink (kg/mm) 17.44
VCGD-0.102VCGM-0.125RM Rated (kg·m) 104.2Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight155
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.374PBWPIPA0.0013
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P12.600IG12.350ISP14.250MDT10.103MDL10.172MDT2MDL2TLTaperMWGO
E4.450J4.120BAS1.540FSDFoilSFJ0.000SPLWPLTPS5.980BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.100Flotation Date22/04/2010
SFFP0.966FFM1.095FF1.109LCFcl5.965SG1.0000
SAFP10.056FAM0.727FA0.736LCFsh6.201HBI0.928
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
Majic PotionNED 8180
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20240.150.911.662.853.7433.24
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment30.090.581.102.124.0511.29NoNo 23.4828/12/2018
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment116.0213.4714.758.818.9099%108.47215.0011.7413.377.868.5092%89.0030/10/2015202314.1713.2013.695.056.7175%61.38