Club
Certificate
2022

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
Beat Angles42.6°41.4°39.0°37.5°36.4°36.1°35.6°
Beat VMG3.684.434.975.205.325.395.46
52°5.586.556.997.187.277.337.38
60°5.896.767.137.357.477.557.64
75°6.136.897.257.547.777.928.09
90°6.036.877.277.597.918.208.56
110°5.636.777.317.758.158.438.86
120°5.486.647.247.708.188.639.34
135°4.986.156.947.407.868.359.49
150°4.215.316.296.987.407.838.75
Run VMG3.644.605.456.176.747.197.98
Gybe Angles145.1°149.3°151.1°158.3°171.2°177.2°177.2°

APH: 547.1

CDL: 9.213

GPH: 611.8

CertNo: US6934

BOAT
ClassJ-35DesignerJOHNSTONEBuilderJ BOATAge date01/1986Series date01/1983Offset fileJ35.OFFData fileUS6934
HULL
Length Overall10.790 mMaximum Beam3.646 mDraft2.098 mDisplacement4,247 kgDLR5.9142IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.440m
CREW
Maximum weight726 kgMinimum weight544 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail32.2032.83Headsail Luffed50.4350.43Headsail FlyingSymmetric95.0295.02Asymmetric
STORM SAIL AREAS (m²)
Trysail9.45Storm Jib10.14Heavy Weather Jib27.37
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment112.4 kg·mStability 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.
ORC Ref  04560002652Issued on 28/06/2022Valid until 31/01/2023
VPP ver: 2022 1.02 | © ORC | www.orc.org

Club
Certificate
2022

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
Beat VMG978.5812.0724.9692.3676.6667.4658.9
52°645.7549.2514.7501.7495.0490.9487.6
60°611.4532.9504.7489.9482.0476.7471.4
75°587.0522.8496.6477.6463.1454.5445.2
90°596.8524.0495.5474.4454.9439.2420.6
110°639.8532.0492.4464.6441.9427.3406.4
120°656.6541.8497.2467.6440.2417.3385.6
135°723.5585.5518.5486.5458.0431.2379.4
150°856.0678.3572.2515.7486.4459.9411.3
Run VMG988.5783.2660.3583.2534.1500.6451.1
Selected Courses
Windward / Leeward983.5797.6692.6637.8605.4584.0555.0
All purpose757.6628.3564.2530.4508.5492.6469.3
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward666.00.9009
All purpose547.11.0967
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.8060
Downwind "popa"0.9331
70% up, 30% down "Ilhabela"0.8404
30% up, 70% down "Ilhabela-inverso"0.8910
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Predominantly Upwind586.91.0223
Predominantly Downwind559.41.0727
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low692.90.8659
Triple Number All Purpose Medium544.31.1023
Triple Number All Purpose High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Predominantly Upwind586.91.0223
Predominantly Downwind559.41.0727
Predominantly Upwind Low760.60.7889
Predominantly Upwind Medium602.30.9962
Predominantly Upwind High565.41.0611
Predominantly Downwind Low765.90.7834
Predominantly Downwind Medium558.11.0751
Predominantly Downwind High465.01.2903
Chicago-Mac Upwind1.0062
Chicago-Mac All Purpose1.0276
Chicago-Mac Downwind1.0547
Bayview-Mac Cove Island0.9612
Bayview-Mac Shore0.9718
Victoria-Maui1.1262
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance594.1
Triple Number Coastal/Long Distance Low692.9
Triple Number Coastal/Long Distance Medium544.3
Triple Number Coastal/Long Distance High487.8
Triple Number Windward/Leeward Low890.6
Triple Number Windward/Leeward Medium661.3
Triple Number Windward/Leeward High578.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8659
Triple Number Coastal/Long Distance Medium1.1023
Triple Number Coastal/Long Distance High1.2299
Triple Number Windward/Leeward Low0.6737
Triple Number Windward/Leeward Medium0.9073
Triple Number Windward/Leeward High1.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low692.9
Triple Number Coastal/Long Distance Medium544.3
Triple Number Coastal/Long Distance High487.8
Triple Number Windward/Leeward Low890.6
Triple Number Windward/Leeward Medium661.3
Triple Number Windward/Leeward High578.5
Predominantly Upwind586.9
Predominantly Downwind559.4
Predominantly Reaching535.4
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8659
Triple Number Coastal/Long Distance Medium1.1023
Triple Number Coastal/Long Distance High1.2299
Triple Number Windward/Leeward Low0.6737
Triple Number Windward/Leeward Medium0.9073
Triple Number Windward/Leeward High1.0372
Coastal/Long Distance1.0100
Predominantly Upwind1.0223
Predominantly Downwind1.0727
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)1.0100
Tretall Distanseseilas Lite vind0.8659
Tretall Distanseseilas Mellomvind1.1023
Tretall Distanseseilas Mye vind1.2299
Tretall Pølsebane Lite vind0.6737
Tretall Pølsebane Mellomvind0.9073
Tretall Pølsebane Mye vind1.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Coastal/Long Distance594.11.0100
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind586.91.0223
Predominantly Downwind559.41.0727
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore563.71.0644
Cape Doctor Coastal476.31.2597
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8659
Triple Number Coastal/Long Distance Medium1.1023
Triple Number Coastal/Long Distance High1.2299
Triple Number Windward/Leeward Low0.6737
Triple Number Windward/Leeward Medium0.9073
Triple Number Windward/Leeward High1.0372
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8659
Triple Number Coastal/Long Distance Medium1.1023
Triple Number Coastal/Long Distance High1.2299
Triple Number Windward/Leeward Low0.6737
Triple Number Windward/Leeward Medium0.9073
Triple Number Windward/Leeward High1.0372
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Predominantly Upwind586.91.0223
Predominantly Downwind559.41.0727
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance594.11.0100
Triple Number Coastal/Long Distance Low692.90.8659
Triple Number Coastal/Long Distance Medium544.31.1023
Triple Number Coastal/Long Distance High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance984.0751.9629.9563.6527.1497.2450.5
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low692.90.8659
Triple Number All Purpose Medium544.31.1023
Triple Number All Purpose High487.81.2299
Triple Number Windward/Leeward Low890.60.6737
Triple Number Windward/Leeward Medium661.30.9073
Triple Number Windward/Leeward High578.51.0372
Predominantly Upwind586.91.0223
Predominantly Downwind559.41.0727
Predominantly Upwind Low760.60.7889
Predominantly Upwind Medium602.30.9962
Predominantly Upwind High565.41.0611
Predominantly Downwind Low765.90.7834
Predominantly Downwind Medium558.11.0751
Predominantly Downwind High465.01.2903
Chicago-Mac Upwind1.0062
Chicago-Mac All Purpose1.0276
Chicago-Mac Downwind1.0547
Bayview-Mac Cove Island0.9612
Bayview-Mac Shore0.9718
Harvest Moon Regatta488.01.2295
Victoria-Maui1.1262
5-Band
Windward/Leeward		Time On DistanceTime On Time
5-Band Low969.20.6191
5-Band Low / Medium815.10.7361
5-Band Medium650.30.9227
5-Band Medium / High587.21.0218
5-Band High560.01.0714
ORC Ref  04560002652Issued on 28/06/2022Valid until 31/01/2023
VPP ver: 2022 1.02 | © ORC | www.orc.org

Club
Certificate
2022

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
LOA10.790Max. Beam3.646Draft2.098Displacement4,247Wetted area22.59IMS L9.121LSM08.954Acc. length10.820Sink (kg/mm) 16.79
VCGD-0.166VCGM-0.079RM Measured (kg·m) 112.4RM Default (kg·m) 107.2Limit of positive stability(°) N/AStability IndexN/A
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 FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2
P12.650IG14.143ISP14.206MDT10.098MDL10.202MDT20.092MDL20.119TL1.393MW0.132GO0.162
E4.268J4.481BAS1.506FSD0.030SFJ0.000SPL4.571WPLTPS1.000BD0.138MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyFlotation Date17/02/2022MeasurerComment
SFFP0.582FFMFF1.180LCFcl6.083SG1.0250
SAFP10.519FAMFA0.891LCFsh6.353HBI0.990
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG00.000.00Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGaAnchor00.00Total deductible0
ORC Ref  04560002652Issued on 28/06/2022Valid until 31/01/2023
VPP ver: 2022 1.02 | © ORC | www.orc.org

Club
Certificate
2022

Boat

FIREFLY

USA 40935

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateMakerMaterialComment24178800.130.931.642.783.5432.20TAC BOSTON2019 CLASS MAINSAIL
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialComment24178890.100.891.703.405.146.9314.66NoNo 50.43TAC BOSTON2019 CLASS 155%
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateMakerMaterialComment145650514.1314.1314.138.078.0795.02NORTH
ORC Ref  04560002652Issued on 28/06/2022Valid until 31/01/2023
VPP ver: 2022 1.02 | © ORC | www.orc.org