Club
Certificate
2023

Boat

Alfa

NOR 4596

Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles44.1°42.1°40.6°39.4°38.4°38.1°38.2°
Beat VMG2.983.644.124.474.654.734.76
52°4.575.466.036.366.546.626.70
60°4.835.706.226.516.706.816.90
75°4.985.856.366.666.877.047.24
90°5.156.116.606.887.037.147.49
110°5.176.176.697.047.347.607.96
120°4.996.016.606.987.327.648.29
135°4.455.476.286.737.087.448.18
150°3.714.745.666.356.757.087.75
Run VMG3.214.114.915.636.216.627.26
Gybe Angles146.0°151.1°152.0°161.0°174.5°179.0°179.0°

APH: 620.5

CDL: 7.572

GPH: 699.0

CertNo: 5567

BOAT
ClassOMEGA 30DesignerRon HollandBuilderAge date01/1983Series date01/1983Offset fileS9209.BOFData file5567
HULL
Length Overall9.400 mMaximum Beam3.004 mDraft1.569 mDisplacement3,683 kgDLR6.4520IMS DivisionCruiser/RacerDynamic Allowance0.260%Age Allowance0.487%
PROPELLER
InstallationShaft non exposedTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight527 kgMinimum weight395 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail28.2828.87Headsail Luffed16.7316.73Headsail FlyingSymmetric59.1159.11Asymmetric
STORM SAIL AREAS (m²)
Trysail8.36Storm Jib5.63Heavy Weather Jib15.20
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
2023

Boat

Alfa

NOR 4596

Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1208.7990.3874.0805.9774.5761.8755.5
52°787.1659.9597.2566.0550.6543.5537.5
60°745.7632.0579.0552.7537.6529.0521.7
75°723.4614.9565.6540.9524.1511.5497.6
90°698.6589.4545.0523.4512.1503.9480.5
110°696.5583.8538.3511.5490.2473.7452.1
120°721.2598.7545.5515.9491.8470.9434.1
135°808.4658.0572.8535.0508.2484.1439.9
150°971.4758.8636.4567.2533.5508.4464.7
Run VMG1121.7875.8733.9639.0579.8543.5495.8
Selected Courses
Windward / Leeward1165.2933.1803.9722.4677.2652.7625.7
All purpose890.2727.9644.0596.1569.3552.6529.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward761.10.7884
All purpose620.50.9669
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6806
Downwind "popa"0.8418
70% up, 30% down "Ilhabela"0.7221
30% up, 70% down "Ilhabela-inverso"0.7859
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Predominantly Upwind674.30.8898
Predominantly Downwind627.50.9562
Custom scoring options for Canada
Scoring OptionTime On
Distance
Time On
Time
Triple Number All Purpose Low809.10.7416
Triple Number All Purpose Medium616.30.9735
Triple Number All Purpose High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Predominantly Upwind674.30.8898
Predominantly Downwind627.50.9562
Predominantly Upwind Low911.00.6586
Predominantly Upwind Medium697.20.8606
Predominantly Upwind High639.90.9377
Predominantly Downwind Low877.00.6841
Predominantly Downwind Medium618.00.9709
Predominantly Downwind High516.91.1607
Chicago-Mac Upwind0.8719
Chicago-Mac All Purpose0.9017
Chicago-Mac Downwind0.9391
Bayview-Mac Cove Island0.8331
Bayview-Mac Shore0.8386
Scoring OptionTime On
Distance
Time On
Time
Predominantly Reaching588.71.0192
Predominantly Reaching Low725.10.8274
Predominantly Reaching Medium582.31.0303
Predominantly Reaching High516.31.1622
5-Band
Windward/Leeward
Time On
Distance
Time On
Time
5-Band Low1147.30.5230
5-Band Low / Medium954.50.6286
5-Band Medium740.20.8105
5-Band Medium / High658.10.9117
5-Band High630.30.9519
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance676.2
Triple Number Coastal/Long Distance Low809.1
Triple Number Coastal/Long Distance Medium616.3
Triple Number Coastal/Long Distance High548.1
Triple Number Windward/Leeward Low1049.1
Triple Number Windward/Leeward Medium755.9
Triple Number Windward/Leeward High648.6
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7416
Triple Number Coastal/Long Distance Medium0.9735
Triple Number Coastal/Long Distance High1.0946
Triple Number Windward/Leeward Low0.5719
Triple Number Windward/Leeward Medium0.7938
Triple Number Windward/Leeward High0.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low809.1
Triple Number Coastal/Long Distance Medium616.3
Triple Number Coastal/Long Distance High548.1
Triple Number Windward/Leeward Low1049.1
Triple Number Windward/Leeward Medium755.9
Triple Number Windward/Leeward High648.6
Predominantly Upwind674.3
Predominantly Downwind627.5
Predominantly Reaching602.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7416
Triple Number Coastal/Long Distance Medium0.9735
Triple Number Coastal/Long Distance High1.0946
Triple Number Windward/Leeward Low0.5719
Triple Number Windward/Leeward Medium0.7938
Triple Number Windward/Leeward High0.9250
Coastal/Long Distance0.8874
Predominantly Upwind0.8898
Predominantly Downwind0.9562
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7416
Tretall Distanseseilas Mellomvind0.9735
Tretall Distanseseilas Mye vind1.0946
Tretall Pølsebane Lite vind0.5719
Tretall Pølsebane Mellomvind0.7938
Tretall Pølsebane Mye vind0.9250
Distanseseilas ett tall (OSN 8-16kn)0.8874
Distanseseilas ett tall (APH 6-20kn)0.9669
Enkeltall Motvind0.8898
Enkeltall Medvind0.9562
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Coastal/Long Distance676.20.8874
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind674.30.8898
Predominantly Downwind627.50.9562
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore633.80.9467
Cape Doctor Coastal536.51.1184
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7416
Triple Number Coastal/Long Distance Medium0.9735
Triple Number Coastal/Long Distance High1.0946
Triple Number Windward/Leeward Low0.5719
Triple Number Windward/Leeward Medium0.7938
Triple Number Windward/Leeward High0.9250
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7416
Triple Number Coastal/Long Distance Medium0.9735
Triple Number Coastal/Long Distance High1.0946
Triple Number Windward/Leeward Low0.5719
Triple Number Windward/Leeward Medium0.7938
Triple Number Windward/Leeward High0.9250
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Predominantly Upwind674.30.8898
Predominantly Downwind627.50.9562
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance676.20.8874
Triple Number Coastal/Long Distance Low809.10.7416
Triple Number Coastal/Long Distance Medium616.30.9735
Triple Number Coastal/Long Distance High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1160.8875.4724.7635.3590.3558.5506.7
Custom scoring options for United States of America
Scoring OptionTime On
Distance
Time On
Time
Triple Number All Purpose Low809.10.7416
Triple Number All Purpose Medium616.30.9735
Triple Number All Purpose High548.11.0946
Triple Number Windward/Leeward Low1049.10.5719
Triple Number Windward/Leeward Medium755.90.7938
Triple Number Windward/Leeward High648.60.9250
Predominantly Upwind674.30.8898
Predominantly Downwind627.50.9562
Predominantly Upwind Low911.00.6586
Predominantly Upwind Medium697.20.8606
Predominantly Upwind High639.90.9377
Predominantly Downwind Low877.00.6841
Predominantly Downwind Medium618.00.9709
Predominantly Downwind High516.91.1607
Chicago-Mac Upwind0.8719
Chicago-Mac All Purpose0.9017
Chicago-Mac Downwind0.9391
Bayview-Mac Cove Island0.8331
Bayview-Mac Shore0.8386
Harvest Moon Regatta538.61.1140
Scoring OptionTime On
Distance
Time On
Time
San Francisco Bay Heavy639.30.9385
San Francisco Bay Medium753.10.7967
Predominantly Reaching588.71.0192
Predominantly Reaching Low725.10.8274
Predominantly Reaching Medium582.31.0303
Predominantly Reaching High516.31.1622
Windward/Leeward 60-40 Low1059.20.5665
Windward/Leeward 60-40 Medium783.20.7661
Windward/Leeward 60-40 High687.40.8728
5-Band
Windward/Leeward
Time On
Distance
Time On
Time
5-Band Low1147.30.5230
5-Band Low / Medium954.50.6286
5-Band Medium740.20.8105
5-Band Medium / High658.10.9117
5-Band High630.30.9519

Club
Certificate
2023

Boat

Alfa

NOR 4596

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassOMEGA 30MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.400Max. Beam3.004Draft1.569Displacement3,683Wetted area19.59IMS L8.277LSM08.295Acc. length9.400Sink (kg/mm) 14.40
VCGD0.020VCGM0.065RM Rated (kg·m) 70.1Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0005
PSDPHDPHL
PSAESL
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders0Rotating mastNo
P11.500IG10.550ISP10.550MDT10.110MDL10.160MDT20.100MDL20.120TL0.000MW0.160GO0.180
E4.150J3.500BAS1.430FSD0.000SFJ0.000SPL3.510WPLTPS0.000BDMWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.020Flotation Date01/01/2015MeasurerComment
SFFP0.826FFMFF1.020LCFcl5.527SG0.0000
SAFP8.820FAMFA0.870LCFsh5.728HBI0.917
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2023

Boat

Alfa

NOR 4596

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment625-2021082011030.140.811.552.663.5028.2820/08/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment625-2021082011110.050.440.841.622.353.0410.58NoNo 16.7320/08/2021
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment625-20210416175310.9310.9310.936.536.3359.1116/04/2021