International
One Design
Certificate
2024

Boat

J-80 ONE DESIGN

MNA-1234

Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles42.9°40.5°38.3°37.7°37.5°37.5°38.1°40.7°
Beat VMG3.293.994.414.564.624.664.664.47
52°4.985.816.226.366.446.496.536.47
60°5.225.996.366.546.636.706.776.74
75°5.366.106.496.766.947.057.217.28
90°5.466.226.506.867.167.397.737.94
110°5.606.436.887.187.467.738.268.83
120°5.476.386.947.417.838.229.0810.11
135°4.956.026.697.277.908.6810.9112.61
150°4.225.306.096.637.077.599.9913.27
Run VMG3.664.595.285.746.126.588.6511.50
Gybe Angles144.7°148.5°149.6°149.5°147.3°144.4°141.8°146.6°
APH ToD:596.7CDL: 7.171APH ToT: 1.0055CertNo:J80
BOAT
ClassJ-80 ODDesignerJOHNSTONEBuilderJ-COMPOSITEAge date01/2010Series date01/1995Offset filej80.od.offData filej80
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)
MeasuredRatedMainsail20.9121.53Headsail Luffed13.9813.98Headsail FlyingSymmetricAsymmetric64.9964.99 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.10Storm Jib4.58Heavy Weather Jib12.35
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment27.1 kg·mStability Index105.5
COMMENTS
BASED ON CLASS RULES
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.

International
One Design
Certificate
2024

Boat

J-80 ONE DESIGN

MNA-1234

Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1094.0902.3815.6790.0778.8772.8773.0806.1
52°722.9619.2579.2565.8559.1554.7550.9556.8
60°689.7601.3565.8550.5542.9537.3531.5533.8
75°671.7590.0554.3532.2518.8510.3499.0494.8
90°658.8578.6553.5525.1503.1486.9465.7453.4
110°643.2560.0523.5501.1482.7465.8435.7407.9
120°658.4564.0518.9486.1459.7438.1396.6355.9
135°727.3597.9538.4495.2455.5414.7330.0285.4
150°852.6679.5591.0542.8509.5474.1360.4271.2
Run VMG984.5784.6682.4626.8588.3547.5416.2313.2
Selected Courses
Windward / Leeward1039.2843.4749.0708.4683.5660.1594.6559.6
All purpose806.3673.5613.1582.5561.5542.9501.2478.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward731.10.8207
All purpose596.71.0055
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7087
Downwind "popa"0.9071
70% up, 30% down "Ilhabela"0.7584
30% up, 70% down "Ilhabela-inverso"0.8368
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Predominantly Upwind650.90.9218
Predominantly Downwind593.01.0118
Custom scoring options for Canada
Scoring OptionTODTOT
Predominant Upwind649.40.9239
Predominant Reaching573.61.0460
Predominant Downwind573.61.0460
Predominant Upwind - Low821.90.7300
Predominant Upwind - Low/Med701.20.8556
Predominant Upwind - Medium634.70.9454
Predominant Upwind - Med/High599.11.0015
Predominant Upwind - High577.91.0382
Predominant Reaching Low723.90.8289
Predominant Reaching Low/Med621.90.9648
Predominant Reaching Medium557.31.0766
Predominant Reaching Med/High507.01.1834
Predominant Reaching High467.31.2839
Predominant Downwind Low723.90.8289
Predominant Downwind Low/Med663.10.9049
Predominant Downwind Medium578.61.0370
Predominant Downwind Med/High509.71.1771
Predominant Downwind High442.51.3560
Harvest Moon Regatta514.31.1667
Chicago-Mac Upwind0.9075
Chicago-Mac All Purpose0.9478
Chicago-Mac Downwind0.9963
Bayview-Mac Cove Island0.8867
Bayview-Mac Shore0.8896
Scoring OptionTODTOT
5-Band Windward/Leeward Low994.80.6031
5-Band Windward/Leeward Low/Med819.00.7326
5-Band Windward/Leeward Medium718.10.8355
5-Band Windward/Leeward Med/High657.00.9132
5-Band Windward/Leeward High599.91.0002
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Windward/Leeward 60-40 Low1005.90.5965
Windward/Leeward 60-40 Low/Med831.90.7212
Windward/Leeward 60-40 Medium734.50.8169
Windward/Leeward 60-40 Med/High680.70.8815
Windward/Leeward 60-40 High635.70.9439
5-Band AP Low776.20.7730
5-Band AP Low/Med658.30.9114
5-Band AP Medium588.31.0199
5-Band AP Med/High542.31.1064
5-Band AP High504.51.1893
Triple Number AP Low739.90.8109
Triple Number AP Medium595.11.0082
Triple Number AP High531.91.1280
5-Band SF Bay Tour - Low948.20.6328
5-Band SF Bay Tour - Low/Med785.30.7640
5-Band SF Bay Tour - Medium692.00.8671
5-Band SF Bay Tour - Med/High636.00.9434
5-Band SF Bay Tour - High587.61.0211
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance646.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8109
Triple Number Coastal/Long Distance Medium1.0083
Triple Number Coastal/Long Distance High1.1280
Triple Number Windward/Leeward Low0.6374
Triple Number Windward/Leeward Medium0.8253
Triple Number Windward/Leeward High0.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low739.9
Triple Number Coastal/Long Distance Medium595.1
Triple Number Coastal/Long Distance High531.9
Triple Number Windward/Leeward Low941.3
Triple Number Windward/Leeward Medium727.0
Triple Number Windward/Leeward High641.4
Predominantly Upwind650.9
Predominantly Downwind593.0
Predominantly Reaching573.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8109
Triple Number Coastal/Long Distance Medium1.0083
Triple Number Coastal/Long Distance High1.1280
Triple Number Windward/Leeward Low0.6374
Triple Number Windward/Leeward Medium0.8253
Triple Number Windward/Leeward High0.9354
Coastal/Long Distance0.9283
Predominantly Upwind0.9218
Predominantly Downwind1.0118
For information
General Purpose Handicap (GPH)664.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8109
Tretall Distanseseilas Mellomvind1.0083
Tretall Distanseseilas Mye vind1.1280
Tretall Pølsebane Lite vind0.6374
Tretall Pølsebane Mellomvind0.8253
Tretall Pølsebane Mye vind0.9354
Distanseseilas ett tall (OSN 8-16kn)0.9283
Distanseseilas ett tall (APH 6-20kn)1.0055
Enkeltall Motvind0.9218
Enkeltall Medvind1.0118
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Coastal/Long Distance646.30.9283
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind650.90.9218
Predominantly Downwind593.01.0118
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore570.11.0524
Cape Doctor Coastal485.41.2360
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8109
Triple Number Coastal/Long Distance Medium1.0083
Triple Number Coastal/Long Distance High1.1280
Triple Number Windward/Leeward Low0.6374
Triple Number Windward/Leeward Medium0.8253
Triple Number Windward/Leeward High0.9354
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8109
Triple Number Coastal/Long Distance Medium1.0083
Triple Number Coastal/Long Distance High1.1280
Triple Number Windward/Leeward Low0.6374
Triple Number Windward/Leeward Medium0.8253
Triple Number Windward/Leeward High0.9354
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Predominantly Upwind650.90.9218
Predominantly Downwind593.01.0118
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance646.30.9283
Triple Number Coastal/Long Distance Low739.90.8109
Triple Number Coastal/Long Distance Medium595.11.0083
Triple Number Coastal/Long Distance High531.91.1280
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1033.8795.9682.2620.4583.0548.5480.2452.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Predominant Upwind649.40.9239
Predominant Reaching573.61.0460
Predominant Downwind573.61.0460
Predominant Upwind - Low821.90.7300
Predominant Upwind - Low/Med701.20.8556
Predominant Upwind - Medium634.70.9454
Predominant Upwind - Med/High599.11.0015
Predominant Upwind - High577.91.0382
Predominant Reaching Low723.90.8289
Predominant Reaching Low/Med621.90.9648
Predominant Reaching Medium557.31.0766
Predominant Reaching Med/High507.01.1834
Predominant Reaching High467.31.2839
Predominant Downwind Low723.90.8289
Predominant Downwind Low/Med663.10.9049
Predominant Downwind Medium578.61.0370
Predominant Downwind Med/High509.71.1771
Predominant Downwind High442.51.3560
Harvest Moon Regatta514.31.1667
Chicago-Mac Upwind0.9075
Chicago-Mac All Purpose0.9478
Chicago-Mac Downwind0.9963
Bayview-Mac Cove Island0.8867
Bayview-Mac Shore0.8896
Scoring OptionTODTOT
5-Band Windward/Leeward Low994.80.6031
5-Band Windward/Leeward Low/Med819.00.7326
5-Band Windward/Leeward Medium718.10.8355
5-Band Windward/Leeward Med/High657.00.9132
5-Band Windward/Leeward High599.91.0002
Triple Number Windward/Leeward Low941.30.6374
Triple Number Windward/Leeward Medium727.00.8253
Triple Number Windward/Leeward High641.40.9354
Windward/Leeward 60-40 Low1005.90.5965
Windward/Leeward 60-40 Low/Med831.90.7212
Windward/Leeward 60-40 Medium734.50.8169
Windward/Leeward 60-40 Med/High680.70.8815
Windward/Leeward 60-40 High635.70.9439
5-Band AP Low776.20.7730
5-Band AP Low/Med658.30.9114
5-Band AP Medium588.31.0199
5-Band AP Med/High542.31.1064
5-Band AP High504.51.1893
Triple Number AP Low739.90.8109
Triple Number AP Medium595.11.0082
Triple Number AP High531.91.1280
5-Band SF Bay Tour - Low948.20.6328
5-Band SF Bay Tour - Low/Med785.30.7640
5-Band SF Bay Tour - Medium692.00.8671
5-Band SF Bay Tour - Med/High636.00.9434
5-Band SF Bay Tour - High587.61.0211

International
One Design
Certificate
2024

Boat

J-80 ONE DESIGN

MNA-1234

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 L7.196LSM06.802Acc. length8.032Sink (kg/mm) 9.00
VCGD-0.154VCGM-0.081RM Rated (kg·m) 27.1Limit of positive stability(°) 112.3Stability Index105.5Default crew weight397Declared crew weight350
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders2Rotating 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
SFFP0.177FFM0.877FF0.877LCFcl4.258SG1.0250
SAFP8.015FAM0.627FA0.627LCFsh4.434HBI0.739
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

International
One Design
Certificate
2024

Boat

J-80 ONE DESIGN

MNA-1234

MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.160.791.452.483.2420.91* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.081.482.959.30YesNo 13.98* Copied from legacy *
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentORC12.209.9011.056.987.3795%64.99