Club Certificate2025
Leda 3NOR 12485
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 Angles43.3°43.3°40.9°39.3°38.3°37.8°38.2°38.6°40.3°
Beat VMG2.473.404.124.624.884.995.055.084.97
52°3.855.166.086.636.907.037.097.167.14
60°4.105.436.316.807.077.227.307.387.37
75°4.225.626.546.997.237.457.607.777.85
90°4.455.876.767.217.517.727.868.138.34
110°4.215.706.747.287.708.068.388.849.30
120°4.075.556.627.207.628.048.459.319.99
135°3.584.996.126.877.337.748.179.1811.18
150°2.964.215.316.236.867.277.628.349.37
Run VMG2.563.654.605.405.976.426.807.428.11
Gybe Angles143.5°143.5°147.8°150.2°153.0°158.8°163.1°163.9°140.0°
APH ToD:567.6CDL: 8.633APH ToT: 1.0571CertNo:9835
BOAT
ClassFirst 34.7DesignerB.FarrBuilderBeneteauAge date01/2008Series date01/2004Offset fileFIRST347.offData file9835
HULL
Length Overall9.980 mMaximum Beam3.372 mDraft1.996 mDisplacement4,539 kgDLR6.6510IMS DivisionCruiser/RacerDynamic Allowance0.200%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight500 kg(declared)Minimum weight370 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail34.3635.12Headsail Luffed26.4226.42Headsail FlyingSymmetricAsymmetric61.4672.15 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail10.06Storm Jib8.68Heavy Weather Jib23.42
SAIL LIMITS
Headsails5Spinnakers4
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 Certificate2025
Leda 3NOR 12485
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 VMG1457.21060.0874.7779.6737.3720.9712.5708.9723.8
52°934.7697.1592.6543.3521.6512.4507.5503.1504.5
60°878.6662.7570.9529.4509.1498.6493.5487.7488.3
75°853.2640.4550.5515.1497.9483.5473.5463.3458.7
90°808.8613.5532.9499.2479.3466.4458.1443.0431.6
110°854.2631.1533.8494.2467.8446.5429.8407.2387.0
120°885.0648.8543.9500.3472.2447.8425.9386.6360.4
135°1006.0721.2588.0524.0491.0464.9440.7392.3321.9
150°1215.7854.3677.4577.7524.7495.4472.7431.7384.4
Run VMG1404.1986.4782.1667.0602.6560.9529.7485.4443.8
Selected Courses
Windward / Leeward1430.01023.2828.4723.3670.0640.9621.1597.2583.8
All purpose1078.9786.2651.1583.8549.1528.5513.7492.5476.8
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward699.80.8574
All purpose567.61.0571
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7508
Downwind "popa"0.9102
70% up, 30% down "Ilhabela"0.7925
30% up, 70% down "Ilhabela-inverso"0.8557
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Predominantly Upwind614.80.9759
Predominantly Downwind574.51.0443
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low718.60.8349
Triple Number AP Medium564.11.0637
Triple Number AP High509.51.1777
Triple Number Windward/Leeward Low965.80.6213
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Single Number Predominant Upwind639.00.9390
Single Number Predominant Reaching560.41.0706
Single Number Predominant Downwind597.91.0035
Predominant Upwind - Low867.50.6916
Predominant Upwind - Low/Med669.80.8958
Predominant Upwind - Medium596.21.0064
Predominant Upwind - Med/High561.91.0678
Predominant Upwind - High547.41.0960
Predominant Downwind Low856.50.7005
Predominant Downwind Low/Med642.90.9333
Predominant Downwind Medium556.11.0789
Predominant Downwind Med/High502.71.1936
Predominant Downwind High466.51.2861
Predominant Reaching Low760.30.7892
Predominant Reaching Low/Med591.21.0149
Predominant Reaching Medium526.81.1389
Predominant Reaching Med/High489.31.2263
Predominant Reaching High464.01.2932
SA/DSPL Upwind22.06SA/DSPL Downwind34.77
Scoring OptionTODTOT
5-Band Windward/Leeward Low1076.40.5574
5-Band Windward/Leeward Low/Med796.60.7532
5-Band Windward/Leeward Medium683.10.8784
5-Band Windward/Leeward Med/High624.50.9607
5-Band Windward/Leeward High599.01.0017
Windward/Leeward 60-40 Low1083.70.5537
Windward/Leeward 60-40 Low/Med806.90.7435
Windward/Leeward 60-40 Medium696.60.8613
Windward/Leeward 60-40 Med/High642.70.9335
Windward/Leeward 60-40 High621.60.9652
5-Band AP Low789.40.7601
5-Band AP Low/Med632.20.9491
5-Band AP Medium556.91.0773
5-Band AP Med/High515.61.1637
5-Band AP High493.51.2159
5-Band SF Bay Tour - Low931.00.6445
5-Band SF Bay Tour - Low/Med762.50.7869
5-Band SF Bay Tour - Medium659.00.9105
5-Band SF Bay Tour - Med/High606.30.9896
5-Band SF Bay Tour - High581.71.0314
Chicago-Mac Upwind0.9123
Chicago-Mac All Purpose0.9442
Chicago-Mac Downwind0.9696
Bayview-Mac Cove Island0.6987
Bayview-Mac Shore0.7040
Harvest Moon Regatta493.61.2155
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance617.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating617.20.9721
FinRating, kevyt tuuli1054.00.9487
FinRating, kova tuuli496.41.0073
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9721
Triple Number Coastal/Long Distance Low0.8349
Triple Number Coastal/Long Distance Medium1.0638
Triple Number Coastal/Long Distance High1.1777
Triple Number Windward/Leeward Low0.6481
Triple Number Windward/Leeward Medium0.8650
Triple Number Windward/Leeward High0.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
For information
General Purpose Handicap (GPH)634.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low718.6
Triple Number Coastal/Long Distance Medium564.0
Triple Number Coastal/Long Distance High509.5
Triple Number Windward/Leeward Low925.8
Triple Number Windward/Leeward Medium693.6
Triple Number Windward/Leeward High617.1
Predominantly Upwind614.8
Predominantly Downwind574.5
Predominantly Reaching549.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8349
Triple Number Coastal/Long Distance Medium1.0638
Triple Number Coastal/Long Distance High1.1777
Triple Number Windward/Leeward Low0.6481
Triple Number Windward/Leeward Medium0.8650
Triple Number Windward/Leeward High0.9723
Coastal/Long Distance0.9721
Predominantly Upwind0.9759
Predominantly Downwind1.0443
For information
General Purpose Handicap (GPH)634.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0571
Distanseseilas Trippeltall svak vind0.8349
Distanseseilas Trippeltall mellomvind1.0638
Distanseseilas Trippeltall sterk vind1.1777
Pølsebane Trippeltall svak vind0.6481
Pølsebane Trippeltall mellomvind0.8650
Pølsebane Trippeltall sterk vind0.9723
Motvind Singeltall0.9759
Medvind Singeltall1.0443
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Coastal/Long Distance617.20.9721
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind614.80.9759
Predominantly Downwind574.51.0443
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore587.81.0207
Cape Doctor Coastal481.51.2461
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8349
Triple Number Coastal/Long Distance Medium1.0638
Triple Number Coastal/Long Distance High1.1777
Triple Number Windward/Leeward Low0.6481
Triple Number Windward/Leeward Medium0.8650
Triple Number Windward/Leeward High0.9723
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8349
Triple Number Coastal/Long Distance Medium1.0638
Triple Number Coastal/Long Distance High1.1777
Triple Number Windward/Leeward Low0.6481
Triple Number Windward/Leeward Medium0.8650
Triple Number Windward/Leeward High0.9723
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Predominantly Upwind614.80.9759
Predominantly Downwind574.51.0443
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance617.20.9721
Triple Number Coastal/Long Distance Low718.60.8349
Triple Number Coastal/Long Distance Medium564.01.0638
Triple Number Coastal/Long Distance High509.51.1777
Triple Number Windward/Leeward Low925.80.6481
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1513.91019.5779.0654.4585.4548.6519.0469.8453.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low718.60.8349
Triple Number AP Medium564.11.0637
Triple Number AP High509.51.1777
Triple Number Windward/Leeward Low965.80.6213
Triple Number Windward/Leeward Medium693.60.8650
Triple Number Windward/Leeward High617.10.9723
Single Number Predominant Upwind639.00.9390
Single Number Predominant Reaching560.41.0706
Single Number Predominant Downwind597.91.0035
Predominant Upwind - Low867.50.6916
Predominant Upwind - Low/Med669.80.8958
Predominant Upwind - Medium596.21.0064
Predominant Upwind - Med/High561.91.0678
Predominant Upwind - High547.41.0960
Predominant Downwind Low856.50.7005
Predominant Downwind Low/Med642.90.9333
Predominant Downwind Medium556.11.0789
Predominant Downwind Med/High502.71.1936
Predominant Downwind High466.51.2861
Predominant Reaching Low760.30.7892
Predominant Reaching Low/Med591.21.0149
Predominant Reaching Medium526.81.1389
Predominant Reaching Med/High489.31.2263
Predominant Reaching High464.01.2932
SA/DSPL Upwind22.06SA/DSPL Downwind34.77
Scoring OptionTODTOT
5-Band Windward/Leeward Low1076.40.5574
5-Band Windward/Leeward Low/Med796.60.7532
5-Band Windward/Leeward Medium683.10.8784
5-Band Windward/Leeward Med/High624.50.9607
5-Band Windward/Leeward High599.01.0017
Windward/Leeward 60-40 Low1083.70.5537
Windward/Leeward 60-40 Low/Med806.90.7435
Windward/Leeward 60-40 Medium696.60.8613
Windward/Leeward 60-40 Med/High642.70.9335
Windward/Leeward 60-40 High621.60.9652
5-Band AP Low789.40.7601
5-Band AP Low/Med632.20.9491
5-Band AP Medium556.91.0773
5-Band AP Med/High515.61.1637
5-Band AP High493.51.2159
5-Band SF Bay Tour - Low931.00.6445
5-Band SF Bay Tour - Low/Med762.50.7869
5-Band SF Bay Tour - Medium659.00.9105
5-Band SF Bay Tour - Med/High606.30.9896
5-Band SF Bay Tour - High581.71.0314
Chicago-Mac Upwind0.9123
Chicago-Mac All Purpose0.9442
Chicago-Mac Downwind0.9696
Bayview-Mac Cove Island0.6987
Bayview-Mac Shore0.7040
Harvest Moon Regatta493.61.2155
Club Certificate2025
Leda 3NOR 12485
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFirst 34.7MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.980Max. Beam3.372Draft1.996Displacement4,539Wetted area21.98IMS L9.062LSM08.804Acc. length9.982Sink (kg/mm) 16.34
VCGD-0.110VCGM-0.091RM Rated (kg·m) 101.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight574Declared crew weight500
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0032
EDL1.780ST10.040ST20.180
ST30.180ST40.110ST50.270
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P12.800IG13.170ISP13.760MDT10.100MDL10.180MDT20.100MDL20.150TL1.230MW0.150GO0.150
E4.490J3.670BAS1.540FSDFoilSFJ0.000SPL0.000WPLTPS5.000BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.110Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Leda 3NOR 12485
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment1-2019042908280.100.001.692.893.7534.3629/04/20191-2019060410450.080.001.692.893.7534.3504/06/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment468-2024042210540.060.561.052.502.973.8312.60YesNo 26.4222/04/2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment394-20240318124414.2012.6013.405.166.8875%61.4618/03/2024
CRUISER/RACER REQUIREMENTS*
Accommodation length10.0 mTable area0.44 m²Headroom1.70 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity80 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity50 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.