Club Certificate2025
GERDA MJ80 617
Deutscher Segler Verband e.V.
Soling 16
24159 Kiel Schilksee
technik@dsv.org
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 Angles43.0°43.0°40.7°38.5°37.8°37.6°37.6°38.2°40.7°
Beat VMG2.373.263.964.404.554.624.654.654.47
52°3.704.955.796.216.366.446.496.546.47
60°3.955.205.986.366.546.636.706.776.75
75°4.095.356.106.496.766.947.067.227.28
90°4.165.486.276.566.857.157.397.737.94
110°4.285.636.476.967.327.637.928.539.16
120°4.155.516.416.987.498.008.449.4210.60
135°3.645.016.056.677.257.898.6711.2513.01
150°3.004.265.336.136.677.157.679.9513.33
Run VMG2.603.694.625.325.816.216.648.6211.54
Gybe Angles144.1°144.1°148.6°151.9°153.7°153.0°149.4°141.1°146.6°
APH ToD:594.8CDL: 7.163APH ToT: 1.0087CertNo:140602
BOAT
ClassJ-80 ODDesignerJOHNSTONEBuilderJ-COMPOSITESAge date01/2004Series date01/1995Offset fileJ80.OD.OFFData fileJ80617
HULL
Length Overall8.032 mMaximum Beam2.488 mDraft1.497 mDisplacement1,437 kgDLR4.5633IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight350 kg(declared)Minimum weight220 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension-0.20 m
SAIL AREAS (m²)
MeasuredRatedMainsail20.8321.42Headsail Luffed13.9713.97Headsail FlyingSymmetricAsymmetric58.7658.76 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.10Storm Jib4.58Heavy Weather Jib12.35
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
NO ONE DESIGN
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
GERDA MJ80 617
Deutscher Segler Verband e.V.
Soling 16
24159 Kiel Schilksee
technik@dsv.org
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 VMG1521.61103.0908.8818.4790.8779.3773.6773.7806.1
52°973.1726.9621.3579.8565.8559.0554.7550.8556.7
60°911.6692.4602.4566.2550.5542.7537.3531.4533.6
75°879.1673.1590.5554.6532.3518.6510.2498.9494.7
90°865.4656.7573.9548.5525.4503.3487.0465.6453.2
110°840.8639.9556.7517.1491.5472.1454.3422.3392.9
120°866.9653.3561.7515.6480.5450.2426.8382.2339.6
135°988.3718.0595.5539.6496.5456.5415.2320.0276.8
150°1198.8845.4675.5587.3539.9503.4469.6361.9270.1
Run VMG1383.3976.2780.0676.2619.8579.7542.3417.8311.8
Selected Courses
Windward / Leeward1452.01039.6844.4747.3705.3679.5657.9595.8559.0
All purpose1098.7805.7673.2611.7580.6558.8540.5498.7475.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward729.00.8231
All purpose594.81.0087
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7062
Downwind "popa"0.9146
70% up, 30% down "Ilhabela"0.7580
30% up, 70% down "Ilhabela-inverso"0.8402
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Predominantly Upwind651.20.9214
Predominantly Downwind591.31.0148
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low739.50.8114
Triple Number AP Medium593.31.0114
Triple Number AP High529.41.1334
Triple Number Windward/Leeward Low983.30.6102
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Single Number Predominant Upwind674.70.8892
Single Number Predominant Reaching585.11.0254
Single Number Predominant Downwind609.60.9843
Predominant Upwind - Low898.60.6677
Predominant Upwind - Low/Med702.10.8546
Predominant Upwind - Medium634.70.9454
Predominant Upwind - Med/High598.81.0020
Predominant Upwind - High577.21.0396
Predominant Downwind Low865.70.6931
Predominant Downwind Low/Med660.60.9083
Predominant Downwind Medium576.71.0404
Predominant Downwind Med/High507.91.1814
Predominant Downwind High439.81.3643
Predominant Reaching Low785.10.7642
Predominant Reaching Low/Med620.20.9674
Predominant Reaching Medium556.81.0777
Predominant Reaching Med/High506.41.1848
Predominant Reaching High465.11.2900
SA/DSPL Upwind27.31SA/DSPL Downwind62.44
Scoring OptionTODTOT
5-Band Windward/Leeward Low1094.00.5484
5-Band Windward/Leeward Low/Med818.40.7332
5-Band Windward/Leeward Medium715.50.8386
5-Band Windward/Leeward Med/High655.00.9161
5-Band Windward/Leeward High600.20.9997
Windward/Leeward 60-40 Low1107.00.5420
Windward/Leeward 60-40 Low/Med832.30.7209
Windward/Leeward 60-40 Medium732.70.8189
Windward/Leeward 60-40 Med/High679.20.8834
Windward/Leeward 60-40 High636.00.9434
5-Band AP Low806.60.7439
5-Band AP Low/Med657.30.9128
5-Band AP Medium586.41.0232
5-Band AP Med/High539.91.1114
5-Band AP High501.91.1954
5-Band SF Bay Tour - Low949.00.6323
5-Band SF Bay Tour - Low/Med785.30.7640
5-Band SF Bay Tour - Medium690.30.8692
5-Band SF Bay Tour - Med/High634.10.9462
5-Band SF Bay Tour - High586.71.0226
Chicago-Mac Upwind0.8659
Chicago-Mac All Purpose0.9074
Chicago-Mac Downwind0.9479
Bayview-Mac Cove Island0.6797
Bayview-Mac Shore0.6835
Harvest Moon Regatta510.71.1749
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance644.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating644.60.9309
FinRating, kevyt tuuli1072.10.9328
FinRating, kova tuuli503.40.9932
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9309
Triple Number Coastal/Long Distance Low0.8114
Triple Number Coastal/Long Distance Medium1.0115
Triple Number Coastal/Long Distance High1.1334
Triple Number Windward/Leeward Low0.6369
Triple Number Windward/Leeward Medium0.8282
Triple Number Windward/Leeward High0.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
For information
General Purpose Handicap (GPH)662.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low739.5
Triple Number Coastal/Long Distance Medium593.2
Triple Number Coastal/Long Distance High529.4
Triple Number Windward/Leeward Low942.1
Triple Number Windward/Leeward Medium724.5
Triple Number Windward/Leeward High640.0
Predominantly Upwind651.2
Predominantly Downwind591.3
Predominantly Reaching572.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8114
Triple Number Coastal/Long Distance Medium1.0115
Triple Number Coastal/Long Distance High1.1334
Triple Number Windward/Leeward Low0.6369
Triple Number Windward/Leeward Medium0.8282
Triple Number Windward/Leeward High0.9375
Coastal/Long Distance0.9309
Predominantly Upwind0.9214
Predominantly Downwind1.0148
For information
General Purpose Handicap (GPH)662.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0087
Distanseseilas Trippeltall svak vind0.8114
Distanseseilas Trippeltall mellomvind1.0115
Distanseseilas Trippeltall sterk vind1.1334
Pølsebane Trippeltall svak vind0.6369
Pølsebane Trippeltall mellomvind0.8282
Pølsebane Trippeltall sterk vind0.9375
Motvind Singeltall0.9214
Medvind Singeltall1.0148
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Coastal/Long Distance644.60.9309
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind651.20.9214
Predominantly Downwind591.31.0148
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore570.01.0526
Cape Doctor Coastal482.41.2439
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8114
Triple Number Coastal/Long Distance Medium1.0115
Triple Number Coastal/Long Distance High1.1334
Triple Number Windward/Leeward Low0.6369
Triple Number Windward/Leeward Medium0.8282
Triple Number Windward/Leeward High0.9375
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8114
Triple Number Coastal/Long Distance Medium1.0115
Triple Number Coastal/Long Distance High1.1334
Triple Number Windward/Leeward Low0.6369
Triple Number Windward/Leeward Medium0.8282
Triple Number Windward/Leeward High0.9375
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Predominantly Upwind651.20.9214
Predominantly Downwind591.31.0148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance644.60.9309
Triple Number Coastal/Long Distance Low739.50.8114
Triple Number Coastal/Long Distance Medium593.21.0115
Triple Number Coastal/Long Distance High529.41.1334
Triple Number Windward/Leeward Low942.10.6369
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1525.41033.2796.2680.4618.4579.5545.2476.9447.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low739.50.8114
Triple Number AP Medium593.31.0114
Triple Number AP High529.41.1334
Triple Number Windward/Leeward Low983.30.6102
Triple Number Windward/Leeward Medium724.50.8282
Triple Number Windward/Leeward High640.00.9375
Single Number Predominant Upwind674.70.8892
Single Number Predominant Reaching585.11.0254
Single Number Predominant Downwind609.60.9843
Predominant Upwind - Low898.60.6677
Predominant Upwind - Low/Med702.10.8546
Predominant Upwind - Medium634.70.9454
Predominant Upwind - Med/High598.81.0020
Predominant Upwind - High577.21.0396
Predominant Downwind Low865.70.6931
Predominant Downwind Low/Med660.60.9083
Predominant Downwind Medium576.71.0404
Predominant Downwind Med/High507.91.1814
Predominant Downwind High439.81.3643
Predominant Reaching Low785.10.7642
Predominant Reaching Low/Med620.20.9674
Predominant Reaching Medium556.81.0777
Predominant Reaching Med/High506.41.1848
Predominant Reaching High465.11.2900
SA/DSPL Upwind27.31SA/DSPL Downwind62.44
Scoring OptionTODTOT
5-Band Windward/Leeward Low1094.00.5484
5-Band Windward/Leeward Low/Med818.40.7332
5-Band Windward/Leeward Medium715.50.8386
5-Band Windward/Leeward Med/High655.00.9161
5-Band Windward/Leeward High600.20.9997
Windward/Leeward 60-40 Low1107.00.5420
Windward/Leeward 60-40 Low/Med832.30.7209
Windward/Leeward 60-40 Medium732.70.8189
Windward/Leeward 60-40 Med/High679.20.8834
Windward/Leeward 60-40 High636.00.9434
5-Band AP Low806.60.7439
5-Band AP Low/Med657.30.9128
5-Band AP Medium586.41.0232
5-Band AP Med/High539.91.1114
5-Band AP High501.91.1954
5-Band SF Bay Tour - Low949.00.6323
5-Band SF Bay Tour - Low/Med785.30.7640
5-Band SF Bay Tour - Medium690.30.8692
5-Band SF Bay Tour - Med/High634.10.9462
5-Band SF Bay Tour - High586.71.0226
Chicago-Mac Upwind0.8659
Chicago-Mac All Purpose0.9074
Chicago-Mac Downwind0.9479
Bayview-Mac Cove Island0.6797
Bayview-Mac Shore0.6835
Harvest Moon Regatta510.71.1749
Club Certificate2025
GERDA MJ80 617
Deutscher Segler Verband e.V.
Soling 16
24159 Kiel Schilksee
technik@dsv.org
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-80 ODMeasurement02/09/2002HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.032Max. Beam2.488Draft1.497Displacement1,437Wetted area11.80IMS L7.195LSM06.802Acc. length8.032Sink (kg/mm) 9.00
VCGD-0.154VCGM-0.081RM Rated (kg·m) 27.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight397Declared crew weight350
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P9.144IG9.563ISP10.073MDT10.082MDL10.133MDT20.063MDL20.104TL0.380MW0.133GO0.133
E3.810J2.895BAS1.300FSD0.027SFJ0.000SPLWPLTPS4.800BD0.094MWT33.10MCG3.210
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date06/03/2020
W123.0W223.0W323.0W423.0
PD1524.7PD2524.3PD3525.0PD4524.9
WD7.850PLM9000.00GSA1.0RSA1.0RM27.1
BALLAST
TANKS
INVENTORY
IdDescriptionWeight SailingLCGVCGGAIdDescriptionWeight SailingLCGVCGGAAOUTBOARD ENGINE MINIMUM 12.5 Kg   
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGAEngineOUTBOARD ENGINE MINIMUM 12.5 KgTotal deductible
Club Certificate2025
GERDA MJ80 617
Deutscher Segler Verband e.V.
Soling 16
24159 Kiel Schilksee
technik@dsv.org
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment1718490.160.761.422.473.2520.8328/08/2022
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment1718410.100.410.761.562.232.939.26NoNo 13.9729/08/2022
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment17184412.109.2810.696.407.3887%58.7624/05/2022