Club Certificate2025
JUST PLYFRA-9899
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
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 Angles42.9°42.9°40.7°38.6°37.0°36.5°36.2°36.3°37.2°
Beat VMG2.543.514.284.835.155.285.365.405.35
52°3.955.316.276.817.117.267.337.417.42
60°4.195.576.486.967.257.437.537.647.68
75°4.305.726.647.097.387.637.838.038.15
90°4.535.996.907.367.657.837.988.418.69
110°4.546.057.047.567.988.308.599.259.91
120°4.405.926.967.517.988.458.929.8911.54
135°3.795.306.507.207.698.188.7110.4913.30
150°3.164.475.616.547.177.598.008.9211.98
Run VMG2.733.874.865.676.256.667.027.7410.37
Gybe Angles143.1°143.1°147.5°149.9°153.7°158.4°160.6°156.8°142.7°
APH ToD:544.9CDL: 9.122APH ToT: 1.1012CertNo:25313a
BOAT
ClassJ 99DesignerJOHNSTONEBuilderJ COMPOSITESAge date03/2024Series date01/2019Offset fileJ99-FK.offData fileF9899_25313a
HULL
Length Overall9.950 mMaximum Beam3.410 mDraft2.108 mDisplacement3,943 kgDLR5.9855IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.195%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight564 kg(default)Minimum weight434 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail33.6234.34Headsail Luffed25.9825.98Headsail FlyingSymmetricAsymmetric106.30106.30 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail9.63Storm Jib8.77Heavy Weather Jib23.66
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
2025: NC / 2024: 1st ORC / DSPL from IRC / VOLVO 130S / From: J99QP1R.dxt
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
JUST PLYFRA-9899
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
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 VMG1416.11024.9841.1745.5699.3681.4672.0666.7672.6
52°912.1677.4574.2528.3506.6496.1491.0485.9485.2
60°859.4646.3555.8517.1496.6484.5478.0471.2469.0
75°837.2629.4542.2507.9487.9471.6459.9448.1441.6
90°794.4601.3521.5489.2470.7459.8451.0428.3414.4
110°792.6595.1511.5476.2451.4433.8418.9389.2363.3
120°818.3608.2517.5479.5451.2426.1403.6364.2311.9
135°951.0679.2554.1500.2468.0440.0413.2343.2270.7
150°1141.0805.7642.1550.1502.2474.5450.0403.5300.5
Run VMG1318.4930.3741.4635.2575.7540.7512.7465.2347.0
Selected Courses
Windward / Leeward1366.9977.6791.3690.3637.5611.0592.4566.0509.8
All purpose1034.0753.8625.0561.7527.6507.5492.4466.4430.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward667.10.8994
All purpose544.91.1012
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7879
Downwind "popa"0.9542
70% up, 30% down "Ilhabela"0.8313
30% up, 70% down "Ilhabela-inverso"0.8974
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Predominantly Upwind590.41.0162
Predominantly Downwind549.81.0913
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low689.40.8703
Triple Number AP Medium542.11.1068
Triple Number AP High486.41.2335
Triple Number Windward/Leeward Low922.60.6503
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Single Number Predominant Upwind613.50.9780
Single Number Predominant Reaching539.21.1128
Single Number Predominant Downwind570.21.0523
Predominant Upwind - Low837.60.7163
Predominant Upwind - Low/Med645.10.9302
Predominant Upwind - Medium572.81.0476
Predominant Upwind - Med/High537.21.1168
Predominant Upwind - High517.81.1587
Predominant Downwind Low815.80.7355
Predominant Downwind Low/Med614.40.9765
Predominant Downwind Medium533.21.1254
Predominant Downwind Med/High480.01.2501
Predominant Downwind High433.01.3857
Predominant Reaching Low732.10.8196
Predominant Reaching Low/Med569.91.0527
Predominant Reaching Medium508.71.1794
Predominant Reaching Med/High469.81.2771
Predominant Reaching High436.61.3742
SA/DSPL Upwind23.77SA/DSPL Downwind55.80
Scoring OptionTODTOT
5-Band Windward/Leeward Low1028.40.5834
5-Band Windward/Leeward Low/Med760.40.7890
5-Band Windward/Leeward Medium651.00.9217
5-Band Windward/Leeward Med/High594.91.0086
5-Band Windward/Leeward High560.81.0699
Windward/Leeward 60-40 Low1038.10.5780
Windward/Leeward 60-40 Low/Med771.10.7782
Windward/Leeward 60-40 Medium663.50.9043
Windward/Leeward 60-40 Med/High610.90.9822
Windward/Leeward 60-40 High582.41.0303
5-Band AP Low756.00.7937
5-Band AP Low/Med607.30.9881
5-Band AP Medium535.11.1214
5-Band AP Med/High493.51.2158
5-Band AP High464.71.2911
5-Band SF Bay Tour - Low890.00.6742
5-Band SF Bay Tour - Low/Med728.20.8240
5-Band SF Bay Tour - Medium627.80.9557
5-Band SF Bay Tour - Med/High575.51.0426
5-Band SF Bay Tour - High542.81.1053
Chicago-Mac Upwind0.9495
Chicago-Mac All Purpose0.9849
Chicago-Mac Downwind1.0156
Bayview-Mac Cove Island0.7295
Bayview-Mac Shore0.7341
Harvest Moon Regatta475.91.2608
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance590.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating590.91.0155
FinRating, kevyt tuuli1007.30.9927
FinRating, kova tuuli463.41.0789
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0155
Triple Number Coastal/Long Distance Low0.8703
Triple Number Coastal/Long Distance Medium1.1069
Triple Number Coastal/Long Distance High1.2335
Triple Number Windward/Leeward Low0.6784
Triple Number Windward/Leeward Medium0.9073
Triple Number Windward/Leeward High1.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
For information
General Purpose Handicap (GPH)609.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low689.4
Triple Number Coastal/Long Distance Medium542.1
Triple Number Coastal/Long Distance High486.4
Triple Number Windward/Leeward Low884.4
Triple Number Windward/Leeward Medium661.3
Triple Number Windward/Leeward High587.1
Predominantly Upwind590.4
Predominantly Downwind549.8
Predominantly Reaching528.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8703
Triple Number Coastal/Long Distance Medium1.1069
Triple Number Coastal/Long Distance High1.2335
Triple Number Windward/Leeward Low0.6784
Triple Number Windward/Leeward Medium0.9073
Triple Number Windward/Leeward High1.0219
Coastal/Long Distance1.0155
Predominantly Upwind1.0162
Predominantly Downwind1.0913
For information
General Purpose Handicap (GPH)609.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1012
Distanseseilas Trippeltall svak vind0.8703
Distanseseilas Trippeltall mellomvind1.1069
Distanseseilas Trippeltall sterk vind1.2335
Pølsebane Trippeltall svak vind0.6784
Pølsebane Trippeltall mellomvind0.9073
Pølsebane Trippeltall sterk vind1.0219
Motvind Singeltall1.0162
Medvind Singeltall1.0913
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Coastal/Long Distance590.91.0155
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind590.41.0162
Predominantly Downwind549.81.0913
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore526.71.1393
Cape Doctor Coastal441.51.3589
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8703
Triple Number Coastal/Long Distance Medium1.1069
Triple Number Coastal/Long Distance High1.2335
Triple Number Windward/Leeward Low0.6784
Triple Number Windward/Leeward Medium0.9073
Triple Number Windward/Leeward High1.0219
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8703
Triple Number Coastal/Long Distance Medium1.1069
Triple Number Coastal/Long Distance High1.2335
Triple Number Windward/Leeward Low0.6784
Triple Number Windward/Leeward Medium0.9073
Triple Number Windward/Leeward High1.0219
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Predominantly Upwind590.41.0162
Predominantly Downwind549.81.0913
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance590.91.0155
Triple Number Coastal/Long Distance Low689.40.8703
Triple Number Coastal/Long Distance Medium542.11.1069
Triple Number Coastal/Long Distance High486.41.2335
Triple Number Windward/Leeward Low884.40.6784
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1442.1972.9744.9627.0560.7525.9497.2448.0410.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low689.40.8703
Triple Number AP Medium542.11.1068
Triple Number AP High486.41.2335
Triple Number Windward/Leeward Low922.60.6503
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High587.11.0219
Single Number Predominant Upwind613.50.9780
Single Number Predominant Reaching539.21.1128
Single Number Predominant Downwind570.21.0523
Predominant Upwind - Low837.60.7163
Predominant Upwind - Low/Med645.10.9302
Predominant Upwind - Medium572.81.0476
Predominant Upwind - Med/High537.21.1168
Predominant Upwind - High517.81.1587
Predominant Downwind Low815.80.7355
Predominant Downwind Low/Med614.40.9765
Predominant Downwind Medium533.21.1254
Predominant Downwind Med/High480.01.2501
Predominant Downwind High433.01.3857
Predominant Reaching Low732.10.8196
Predominant Reaching Low/Med569.91.0527
Predominant Reaching Medium508.71.1794
Predominant Reaching Med/High469.81.2771
Predominant Reaching High436.61.3742
SA/DSPL Upwind23.77SA/DSPL Downwind55.80
Scoring OptionTODTOT
5-Band Windward/Leeward Low1028.40.5834
5-Band Windward/Leeward Low/Med760.40.7890
5-Band Windward/Leeward Medium651.00.9217
5-Band Windward/Leeward Med/High594.91.0086
5-Band Windward/Leeward High560.81.0699
Windward/Leeward 60-40 Low1038.10.5780
Windward/Leeward 60-40 Low/Med771.10.7782
Windward/Leeward 60-40 Medium663.50.9043
Windward/Leeward 60-40 Med/High610.90.9822
Windward/Leeward 60-40 High582.41.0303
5-Band AP Low756.00.7937
5-Band AP Low/Med607.30.9881
5-Band AP Medium535.11.1214
5-Band AP Med/High493.51.2158
5-Band AP High464.71.2911
5-Band SF Bay Tour - Low890.00.6742
5-Band SF Bay Tour - Low/Med728.20.8240
5-Band SF Bay Tour - Medium627.80.9557
5-Band SF Bay Tour - Med/High575.51.0426
5-Band SF Bay Tour - High542.81.1053
Chicago-Mac Upwind0.9495
Chicago-Mac All Purpose0.9849
Chicago-Mac Downwind1.0156
Bayview-Mac Cove Island0.7295
Bayview-Mac Shore0.7341
Harvest Moon Regatta475.91.2608
Club Certificate2025
JUST PLYFRA-9899
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 99MeasurementHIN2016Plan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.950Max. Beam3.410Draft2.108Displacement3,943Wetted area21.31IMS L9.126LSM08.700Acc. length9.950Sink (kg/mm) 16.44
VCGD-0.240VCGM-0.117RM Rated (kg·m) 103.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight564Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBW0.100PIPA0.0034
EDL1.720ST10.042ST20.180
ST30.180ST40.112ST50.323
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P12.700IG13.220ISP14.440MDT10.110MDL10.195MDT20.105MDL20.180TL1.200MW0.195GO0.200
E4.330J3.880BAS1.515FSDSFJ0.040SPLWPLTPS5.140BD0.160MWT89.45MCG6.025
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.240Flotation Date22/05/2019
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
JUST PLYFRA-9899
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM20.421.121.762.7633.6206/05/2024From IRC
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG20.731.292.203.114.0112.08YesNo 25.9806/05/2024From IRC
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA216.2213.5514.898.638.33104%106.3006/05/2024CourseA115.0412.5313.797.977.65104%90.8213/02/2024A314.6713.5614.126.107.6879%75.4706/05/2024Course