International
Certificate
2023

Boat

LEADING EDGE

USA 32581

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 Angles42.0°39.6°37.5°36.4°36.0°35.7°35.7°
Beat VMG3.864.605.025.205.305.375.42
52°5.796.626.997.147.237.287.35
60°6.046.787.127.297.397.467.55
75°6.186.877.227.477.637.747.88
90°6.046.827.237.527.777.988.25
110°5.886.907.407.758.018.238.64
120°5.756.837.397.828.208.579.18
135°5.126.397.147.628.098.579.84
150°4.365.496.467.087.427.738.39
Run VMG3.774.755.596.146.436.887.59
Gybe Angles144.4°147.8°148.3°150.3°150.1°173.6°175.7°

APH: 544.9

CDL: 9.230

GPH: 605.2

CertNo: US6405

BOAT
ClassJ 35DesignerJohnstoneBuilderTILLOTSON-PEARSONAge date01/1983Series date01/1983Offset fileJ35.OFFData fileUS6405
HULL
Length Overall10.790 mMaximum Beam3.646 mDraft2.111 mDisplacement4,462 kgDLR6.5379IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft non exposedTypeFolding 2 bladesDiameter0.071m
CREW
Maximum weight580 kgMinimum weight435 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail31.8932.46Headsail Luffed47.9147.91Headsail FlyingSymmetricAsymmetric120.83120.83 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail9.46Storm Jib10.12Heavy Weather Jib27.32
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment107.2 kg·mStability Index105.8
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  03330002TARIssued on 25/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

LEADING EDGE

USA 32581

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 VMG933.6782.0716.8692.0678.9670.4664.7
52°621.9543.8515.4504.3498.1494.2489.8
60°596.2531.2505.7493.6487.0482.5477.0
75°582.7524.2498.3482.1471.8465.0456.6
90°596.4528.1498.0478.4463.2451.3436.5
110°611.8521.6486.3464.3449.2437.3416.7
120°625.8527.1487.2460.3438.8420.2392.3
135°702.5563.8504.3472.4445.2420.0366.0
150°826.5655.7557.7508.2485.2465.7428.8
Run VMG954.4757.2644.0586.6560.1523.1474.5
Selected Courses
Windward / Leeward944.0769.6680.4639.3619.5596.8569.6
All purpose731.8612.9557.3529.9513.6499.2478.0
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward664.10.9035
All purpose544.91.1012
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8174
Downwind "popa"0.9334
70% up, 30% down "Ilhabela"0.8490
30% up, 70% down "Ilhabela-inverso"0.8952
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Predominantly Upwind582.81.0294
Predominantly Downwind553.51.0840
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low672.30.8924
Triple Number All Purpose Medium541.91.1072
Triple Number All Purpose High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Predominantly Upwind582.81.0294
Predominantly Downwind553.51.0840
Predominantly Upwind Low735.00.8163
Predominantly Upwind Medium600.50.9991
Predominantly Upwind High570.31.0520
Predominantly Downwind Low742.20.8084
Predominantly Downwind Medium553.41.0841
Predominantly Downwind High474.41.2647
Chicago-Mac Upwind1.0139
Chicago-Mac All Purpose1.0376
Chicago-Mac Downwind1.0670
Bayview-Mac Cove Island0.9769
Bayview-Mac Shore0.9862
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching519.51.1549
Predominantly Reaching Low615.50.9749
Predominantly Reaching Medium515.21.1646
Predominantly Reaching High460.21.3038
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low930.60.6448
5-Band Low / Medium789.40.7601
5-Band Medium650.10.9229
5-Band Medium / High599.71.0005
5-Band High574.31.0448
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance589.4
Triple Number Coastal/Long Distance Low672.3
Triple Number Coastal/Long Distance Medium541.9
Triple Number Coastal/Long Distance High494.8
Triple Number Windward/Leeward Low856.8
Triple Number Windward/Leeward Medium658.9
Triple Number Windward/Leeward High592.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8924
Triple Number Coastal/Long Distance Medium1.1072
Triple Number Coastal/Long Distance High1.2125
Triple Number Windward/Leeward Low0.7003
Triple Number Windward/Leeward Medium0.9106
Triple Number Windward/Leeward High1.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low672.3
Triple Number Coastal/Long Distance Medium541.9
Triple Number Coastal/Long Distance High494.8
Triple Number Windward/Leeward Low856.8
Triple Number Windward/Leeward Medium658.9
Triple Number Windward/Leeward High592.2
Predominantly Upwind582.8
Predominantly Downwind553.5
Predominantly Reaching531.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8924
Triple Number Coastal/Long Distance Medium1.1072
Triple Number Coastal/Long Distance High1.2125
Triple Number Windward/Leeward Low0.7003
Triple Number Windward/Leeward Medium0.9106
Triple Number Windward/Leeward High1.0131
Coastal/Long Distance1.0179
Predominantly Upwind1.0294
Predominantly Downwind1.0840
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8924
Tretall Distanseseilas Mellomvind1.1072
Tretall Distanseseilas Mye vind1.2125
Tretall Pølsebane Lite vind0.7003
Tretall Pølsebane Mellomvind0.9106
Tretall Pølsebane Mye vind1.0131
Distanseseilas ett tall (OSN 8-16kn)1.0179
Distanseseilas ett tall (APH 6-20kn)1.1012
Enkeltall Motvind1.0294
Enkeltall Medvind1.0840
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Coastal/Long Distance589.41.0179
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind582.81.0294
Predominantly Downwind553.51.0840
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore577.81.0385
Cape Doctor Coastal484.41.2387
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8924
Triple Number Coastal/Long Distance Medium1.1072
Triple Number Coastal/Long Distance High1.2125
Triple Number Windward/Leeward Low0.7003
Triple Number Windward/Leeward Medium0.9106
Triple Number Windward/Leeward High1.0131
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8924
Triple Number Coastal/Long Distance Medium1.1072
Triple Number Coastal/Long Distance High1.2125
Triple Number Windward/Leeward Low0.7003
Triple Number Windward/Leeward Medium0.9106
Triple Number Windward/Leeward High1.0131
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Predominantly Upwind582.81.0294
Predominantly Downwind553.51.0840
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance589.41.0179
Triple Number Coastal/Long Distance Low672.30.8924
Triple Number Coastal/Long Distance Medium541.91.1072
Triple Number Coastal/Long Distance High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance945.0727.8620.4562.7532.4504.5461.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low672.30.8924
Triple Number All Purpose Medium541.91.1072
Triple Number All Purpose High494.81.2125
Triple Number Windward/Leeward Low856.80.7003
Triple Number Windward/Leeward Medium658.90.9106
Triple Number Windward/Leeward High592.21.0131
Predominantly Upwind582.81.0294
Predominantly Downwind553.51.0840
Predominantly Upwind Low735.00.8163
Predominantly Upwind Medium600.50.9991
Predominantly Upwind High570.31.0520
Predominantly Downwind Low742.20.8084
Predominantly Downwind Medium553.41.0841
Predominantly Downwind High474.41.2647
Chicago-Mac Upwind1.0139
Chicago-Mac All Purpose1.0376
Chicago-Mac Downwind1.0670
Bayview-Mac Cove Island0.9769
Bayview-Mac Shore0.9862
Harvest Moon Regatta482.51.2435
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy573.91.0454
San Francisco Bay Medium646.10.9287
Predominantly Reaching519.51.1549
Predominantly Reaching Low615.50.9749
Predominantly Reaching Medium515.21.1646
Predominantly Reaching High460.21.3038
Windward/Leeward 60-40 Low857.00.7001
Windward/Leeward 60-40 Medium674.40.8896
Windward/Leeward 60-40 High618.80.9695
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low930.60.6448
5-Band Low / Medium789.40.7601
5-Band Medium650.10.9229
5-Band Medium / High599.71.0005
5-Band High574.31.0448
ORC Ref  03330002TARIssued on 25/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

LEADING EDGE

USA 32581

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 35Measurement25/03/2023HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.790Max. Beam3.646Draft2.111Displacement4,462Wetted area23.10IMS L9.146LSM08.804Acc. length10.820Sink (kg/mm) 17.16
VCGD-0.026VCGM0.048RM Rated (kg·m) 107.2Limit of positive stability(°) 110.0Stability Index105.8
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.071PBW0.000PIPA0.0013
PSD0.025PHD0.071PHL0.180
PSA16.5°ESL0.000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2Rotating mastNo
P12.650IG14.143ISP14.143MDT10.115MDL10.180MDT20.100MDL20.130TL1.800MW0.130GO0.156
E4.271J4.480BAS1.485FSD0.036SFJ0.000SPLWPLTPS5.311BD0.153MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date25/03/2023MeasurerComment
SFFP0.582FFM1.166FF1.171LCFcl6.118SG1.0100
SAFP10.519FAM0.870FA0.875LCFsh6.387HBI0.979
W190.6W290.6W390.6W490.6LCFD5.005
PD1272.5PD2268.1PD3266.7PD4265.1
WD4.005PLM9000.00GSA1.0RSA1.0RM106.6
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1Alloy tank under Stbd setteeFuel75206.500.00Total deductible176.500.00
Total deductible
ORC Ref  03330002TARIssued on 25/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

LEADING EDGE

USA 32581

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment23-Main0.160.891.592.713.5631.8907/09/2023Main 2023 Titanium
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentL/M #10.050.821.633.325.096.9014.16NoNo 47.9128/02/2023#1 Genoa0.090.821.573.164.866.7414.21NoNo 46.3517/06/2016
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA216.4013.6015.009.659.7399%120.8307/02/2020
ORC Ref  03330002TARIssued on 25/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org