Club
Certificate
2024

Boat

FIREFLY

USA 40935

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles42.1°39.8°37.1°36.0°35.4°35.1°35.0°35.4°
Beat VMG3.904.665.125.315.425.485.555.53
52°5.856.697.067.237.327.387.477.50
60°6.116.847.187.387.497.567.687.72
75°6.256.927.287.547.727.848.038.16
90°6.116.877.287.597.858.078.388.64
110°5.666.757.317.718.048.318.738.99
120°5.526.637.257.698.108.489.239.91
135°4.996.166.937.417.848.289.3311.37
150°4.195.336.296.967.407.808.659.86
Run VMG3.634.615.456.156.717.187.938.73
Gybe Angles143.8°148.5°151.5°158.1°170.0°177.2°178.1°176.2°
APH ToD:543.0CDL: 9.444APH ToT: 1.1049CertNo:US6934
BOAT
ClassJ 35DesignerJOHNSTONEBuilderJ BOATAge date01/1986Series date01/1983Offset fileJ35.OFFData fileUS6934
HULL
Length Overall10.820 mMaximum Beam3.646 mDraft2.104 mDisplacement4,358 kgDLR6.4986IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.440m
CREW
Maximum weight726 kg(declared)Minimum weight596 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail32.5633.22Headsail Luffed50.9450.94Headsail FlyingSymmetric95.3195.31Asymmetric
STORM SAIL AREAS (m²)
Trysail9.45Storm Jib10.14Heavy Weather Jib27.37
SAIL LIMITS
Headsails5  Spinnakers4
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.

Club
Certificate
2024

Boat

FIREFLY

USA 40935

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG924.2772.7703.6677.7664.6656.9648.4650.7
52°615.1538.4510.0497.9491.6487.6481.9480.1
60°589.2526.5501.2487.8480.9476.2468.9466.2
75°575.6520.0494.4477.6466.2459.3448.2441.1
90°589.6523.8494.4474.4458.5446.1429.5416.7
110°635.5533.0492.2466.9448.0433.2412.5400.7
120°652.4542.9496.8468.2444.7424.5389.9363.3
135°721.0584.4519.6486.0459.2435.0385.8316.6
150°858.3676.0572.7516.9486.2461.3416.3365.1
Run VMG991.1780.6660.4585.4536.3501.5453.8412.5
Selected Courses
Windward / Leeward957.6776.7682.0631.5600.5579.2551.1531.6
All purpose740.0617.7558.9527.5507.4492.7469.8449.8
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward657.00.9133
All purpose543.01.1049
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8320
Downwind "popa"0.9315
70% up, 30% down "Ilhabela"0.8595
30% up, 70% down "Ilhabela-inverso"0.8992
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Predominantly Upwind578.31.0375
Predominantly Downwind557.31.0766
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low678.90.8838
Triple Number AP Medium540.51.1101
Triple Number AP High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Single Number Predominant Upwind576.71.0404
Single Number Predominant Reaching523.81.1454
Single Number Predominant Downwind558.41.0746
Predominant Upwind - Low725.50.8270
Predominant Upwind - Low/Med622.60.9638
Predominant Upwind - Medium563.41.0650
Predominant Upwind - Med/High532.21.1273
Predominant Upwind - High515.11.1648
Predominant Downwind Low759.60.7899
Predominant Downwind Low/Med626.40.9579
Predominant Downwind Medium540.11.1108
Predominant Downwind Med/High483.51.2409
Predominant Downwind High445.21.3478
Predominant Reaching Low665.80.9012
Predominant Reaching Low/Med570.61.0514
Predominant Reaching Medium511.71.1726
Predominant Reaching Med/High473.01.2684
Predominant Reaching High445.81.3460
SA/DSPL Upwind31.14SA/DSPL Downwind47.69
Scoring OptionTODTOT
5-Band Windward/Leeward Low916.50.6546
5-Band Windward/Leeward Low/Med748.50.8016
5-Band Windward/Leeward Medium642.40.9340
5-Band Windward/Leeward Med/High582.41.0302
5-Band Windward/Leeward High552.61.0858
Windward/Leeward 60-40 Low911.20.6585
Windward/Leeward 60-40 Low/Med750.10.7999
Windward/Leeward 60-40 Medium651.10.9215
Windward/Leeward 60-40 Med/High597.61.0039
Windward/Leeward 60-40 High572.11.0487
5-Band AP Low712.30.8424
5-Band AP Low/Med601.70.9972
5-Band AP Medium533.91.1237
5-Band AP Med/High494.21.2140
5-Band AP High470.31.2759
5-Band SF Bay Tour - Low867.70.6915
5-Band SF Bay Tour - Low/Med714.60.8397
5-Band SF Bay Tour - Medium620.70.9667
5-Band SF Bay Tour - Med/High568.71.0551
5-Band SF Bay Tour - High540.41.1104
Chicago-Mac Upwind1.0219
Chicago-Mac All Purpose1.0375
Chicago-Mac Downwind1.0583
Bayview-Mac Cove Island0.9753
Bayview-Mac Shore0.9876
Harvest Moon Regatta480.11.2498
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance587.9
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8838
Triple Number Coastal/Long Distance Medium1.1102
Triple Number Coastal/Long Distance High1.2301
Triple Number Windward/Leeward Low0.6919
Triple Number Windward/Leeward Medium0.9193
Triple Number Windward/Leeward High1.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low678.9
Triple Number Coastal/Long Distance Medium540.4
Triple Number Coastal/Long Distance High487.8
Triple Number Windward/Leeward Low867.2
Triple Number Windward/Leeward Medium652.7
Triple Number Windward/Leeward High574.0
Predominantly Upwind578.3
Predominantly Downwind557.3
Predominantly Reaching533.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8838
Triple Number Coastal/Long Distance Medium1.1102
Triple Number Coastal/Long Distance High1.2301
Triple Number Windward/Leeward Low0.6919
Triple Number Windward/Leeward Medium0.9193
Triple Number Windward/Leeward High1.0453
Coastal/Long Distance1.0206
Predominantly Upwind1.0375
Predominantly Downwind1.0766
For information
General Purpose Handicap (GPH)605.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8838
Tretall Distanseseilas Mellomvind1.1102
Tretall Distanseseilas Mye vind1.2301
Tretall Pølsebane Lite vind0.6919
Tretall Pølsebane Mellomvind0.9193
Tretall Pølsebane Mye vind1.0453
Distanseseilas ett tall1.1049
Enkeltall Motvind1.0375
Enkeltall Medvind1.0766
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Coastal/Long Distance587.91.0206
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind578.31.0375
Predominantly Downwind557.31.0766
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore537.41.1164
Cape Doctor Coastal455.81.3165
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8838
Triple Number Coastal/Long Distance Medium1.1102
Triple Number Coastal/Long Distance High1.2301
Triple Number Windward/Leeward Low0.6919
Triple Number Windward/Leeward Medium0.9193
Triple Number Windward/Leeward High1.0453
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8838
Triple Number Coastal/Long Distance Medium1.1102
Triple Number Coastal/Long Distance High1.2301
Triple Number Windward/Leeward Low0.6919
Triple Number Windward/Leeward Medium0.9193
Triple Number Windward/Leeward High1.0453
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Predominantly Upwind578.31.0375
Predominantly Downwind557.31.0766
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance587.91.0206
Triple Number Coastal/Long Distance Low678.90.8838
Triple Number Coastal/Long Distance Medium540.41.1102
Triple Number Coastal/Long Distance High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance961.0734.8622.0559.5525.4497.8452.5433.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low678.90.8838
Triple Number AP Medium540.51.1101
Triple Number AP High487.81.2301
Triple Number Windward/Leeward Low867.20.6919
Triple Number Windward/Leeward Medium652.70.9193
Triple Number Windward/Leeward High574.01.0453
Single Number Predominant Upwind576.71.0404
Single Number Predominant Reaching523.81.1454
Single Number Predominant Downwind558.41.0746
Predominant Upwind - Low725.50.8270
Predominant Upwind - Low/Med622.60.9638
Predominant Upwind - Medium563.41.0650
Predominant Upwind - Med/High532.21.1273
Predominant Upwind - High515.11.1648
Predominant Downwind Low759.60.7899
Predominant Downwind Low/Med626.40.9579
Predominant Downwind Medium540.11.1108
Predominant Downwind Med/High483.51.2409
Predominant Downwind High445.21.3478
Predominant Reaching Low665.80.9012
Predominant Reaching Low/Med570.61.0514
Predominant Reaching Medium511.71.1726
Predominant Reaching Med/High473.01.2684
Predominant Reaching High445.81.3460
SA/DSPL Upwind31.14SA/DSPL Downwind47.69
Scoring OptionTODTOT
5-Band Windward/Leeward Low916.50.6546
5-Band Windward/Leeward Low/Med748.50.8016
5-Band Windward/Leeward Medium642.40.9340
5-Band Windward/Leeward Med/High582.41.0302
5-Band Windward/Leeward High552.61.0858
Windward/Leeward 60-40 Low911.20.6585
Windward/Leeward 60-40 Low/Med750.10.7999
Windward/Leeward 60-40 Medium651.10.9215
Windward/Leeward 60-40 Med/High597.61.0039
Windward/Leeward 60-40 High572.11.0487
5-Band AP Low712.30.8424
5-Band AP Low/Med601.70.9972
5-Band AP Medium533.91.1237
5-Band AP Med/High494.21.2140
5-Band AP High470.31.2759
5-Band SF Bay Tour - Low867.70.6915
5-Band SF Bay Tour - Low/Med714.60.8397
5-Band SF Bay Tour - Medium620.70.9667
5-Band SF Bay Tour - Med/High568.71.0551
5-Band SF Bay Tour - High540.41.1104
Chicago-Mac Upwind1.0219
Chicago-Mac All Purpose1.0375
Chicago-Mac Downwind1.0583
Bayview-Mac Cove Island0.9753
Bayview-Mac Shore0.9876
Harvest Moon Regatta480.11.2498

Club
Certificate
2024

Boat

FIREFLY

USA 40935

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 35MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.820Max. Beam3.646Draft2.104Displacement4,358Wetted area22.85IMS L9.177LSM08.752Acc. length10.820Sink (kg/mm) 16.99
VCGD-0.201VCGM-0.121RM Rated (kg·m) 118.0Limit of positive stability(°) N/AStability IndexN/ADefault crew weight569Declared crew weight726
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.440PBW0.104PIPA0.0027
PSD0.025PHD0.046PHL0.150
PSA18.0°ESL0.772
ST10.022ST20.083ST30.083
ST40.037ST50.162
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays1Spreaders2Rotating mastNo
P12.650IG14.143ISP14.206MDT10.098MDL10.202MDT20.092MDL20.119TL1.393MW0.132GO0.162
E4.268J4.481BAS1.506FSD0.036SFJ0.000SPL4.571WPLTPS1.000BD0.138MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered118.0Flotation Date15/03/2018
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2024

Boat

FIREFLY

USA 40935

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMn-240.170.931.662.783.6332.5611/02/202418585224178800.130.931.642.783.5432.202019 CLASS MAINSAIL
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG1-240.100.901.733.425.146.9614.74NoNo 50.9418/04/202419011724178890.100.891.703.405.146.9314.66NoNo 50.432019 CLASS 155%
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS2-2414.2414.2414.248.097.8095.3118/04/2024190118