Club
Certificate
Non Spinnaker
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 VMG2.983.644.124.474.654.724.76
52°4.585.466.036.366.546.626.70
60°4.835.706.226.516.706.816.90
75°4.985.866.376.666.877.047.24
90°4.885.786.356.696.957.187.51
110°4.475.456.176.606.907.187.71
120°4.205.195.966.466.787.077.62
135°3.654.665.486.126.536.837.38
150°3.154.124.955.666.216.597.14
Run VMG2.733.604.425.145.786.286.90
Gybe Angles153.2°158.6°178.4°179.3°179.9°179.9°179.9°

APH: 650.0

CDL: 7.572

GPH: 737.1

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 Allowance0.300%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 FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail8.36Storm Jib5.63Heavy Weather Jib15.20
SAIL LIMITS
Headsails5  Spinnakers0 * Spinnaker pole aboard
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.
ORC Ref  03440002MF1Issued on 23/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 VMG1208.3990.1873.7805.8774.6761.9755.7
52°786.9659.7597.2566.0550.6543.6537.6
60°745.5631.8578.9552.7537.6529.0521.7
75°723.1614.7565.5540.9524.0511.4497.6
90°737.7622.9567.0538.0517.7501.2479.3
110°805.7660.2583.6545.8521.6501.3467.1
120°858.2693.3603.7557.4530.8509.5472.4
135°985.0771.9657.4588.6550.9526.9487.5
150°1144.5874.0727.2636.2579.3546.6504.4
Run VMG1318.91000.3815.3700.6623.1573.6521.6
Selected Courses
Windward / Leeward1263.6995.2844.5753.2698.8667.8638.6
All purpose965.7778.3678.7621.5588.3568.2544.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward796.00.7537
All purpose650.00.9231
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6807
Downwind "popa"0.7563
70% up, 30% down "Ilhabela"0.7017
30% up, 70% down "Ilhabela-inverso"0.7319
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Predominantly Upwind691.40.8678
Predominantly Downwind677.10.8861
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low872.00.6881
Triple Number All Purpose Medium645.40.9297
Triple Number All Purpose High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Predominantly Upwind691.40.8678
Predominantly Downwind677.10.8861
Predominantly Upwind Low945.00.6349
Predominantly Upwind Medium702.70.8539
Predominantly Upwind High642.20.9343
Predominantly Downwind Low989.10.6066
Predominantly Downwind Medium676.10.8874
Predominantly Downwind High546.41.0981
Chicago-Mac Upwind0.8499
Chicago-Mac All Purpose0.8573
Chicago-Mac Downwind0.8676
Bayview-Mac Cove Island0.7912
Bayview-Mac Shore0.8065
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching619.60.9684
Predominantly Reaching Low795.00.7548
Predominantly Reaching Medium618.30.9705
Predominantly Reaching High533.31.1250
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1242.90.4827
5-Band Low / Medium1019.80.5883
5-Band Medium772.30.7769
5-Band Medium / High675.30.8885
5-Band High643.70.9321
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance709.2
Triple Number Coastal/Long Distance Low872.0
Triple Number Coastal/Long Distance Medium645.4
Triple Number Coastal/Long Distance High564.2
Triple Number Windward/Leeward Low1129.3
Triple Number Windward/Leeward Medium790.2
Triple Number Windward/Leeward High664.6
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6881
Triple Number Coastal/Long Distance Medium0.9297
Triple Number Coastal/Long Distance High1.0635
Triple Number Windward/Leeward Low0.5313
Triple Number Windward/Leeward Medium0.7593
Triple Number Windward/Leeward High0.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low872.0
Triple Number Coastal/Long Distance Medium645.4
Triple Number Coastal/Long Distance High564.2
Triple Number Windward/Leeward Low1129.3
Triple Number Windward/Leeward Medium790.2
Triple Number Windward/Leeward High664.6
Predominantly Upwind691.4
Predominantly Downwind677.1
Predominantly Reaching641.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6881
Triple Number Coastal/Long Distance Medium0.9297
Triple Number Coastal/Long Distance High1.0635
Triple Number Windward/Leeward Low0.5313
Triple Number Windward/Leeward Medium0.7593
Triple Number Windward/Leeward High0.9028
Coastal/Long Distance0.8460
Predominantly Upwind0.8678
Predominantly Downwind0.8861
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.6881
Tretall Distanseseilas Mellomvind0.9297
Tretall Distanseseilas Mye vind1.0635
Tretall Pølsebane Lite vind0.5313
Tretall Pølsebane Mellomvind0.7593
Tretall Pølsebane Mye vind0.9028
Distanseseilas ett tall (OSN 8-16kn)0.8460
Distanseseilas ett tall (APH 6-20kn)0.9231
Enkeltall Motvind0.8678
Enkeltall Medvind0.8861
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Coastal/Long Distance709.20.8460
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind691.40.8678
Predominantly Downwind677.10.8861
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore647.40.9268
Cape Doctor Coastal551.31.0883
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6881
Triple Number Coastal/Long Distance Medium0.9297
Triple Number Coastal/Long Distance High1.0635
Triple Number Windward/Leeward Low0.5313
Triple Number Windward/Leeward Medium0.7593
Triple Number Windward/Leeward High0.9028
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6881
Triple Number Coastal/Long Distance Medium0.9297
Triple Number Coastal/Long Distance High1.0635
Triple Number Windward/Leeward Low0.5313
Triple Number Windward/Leeward Medium0.7593
Triple Number Windward/Leeward High0.9028
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Predominantly Upwind691.40.8678
Predominantly Downwind677.10.8861
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance709.20.8460
Triple Number Coastal/Long Distance Low872.00.6881
Triple Number Coastal/Long Distance Medium645.40.9297
Triple Number Coastal/Long Distance High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1269.1937.2763.5662.6610.1574.6522.6
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low872.00.6881
Triple Number All Purpose Medium645.40.9297
Triple Number All Purpose High564.21.0635
Triple Number Windward/Leeward Low1129.30.5313
Triple Number Windward/Leeward Medium790.20.7593
Triple Number Windward/Leeward High664.60.9028
Predominantly Upwind691.40.8678
Predominantly Downwind677.10.8861
Predominantly Upwind Low945.00.6349
Predominantly Upwind Medium702.70.8539
Predominantly Upwind High642.20.9343
Predominantly Downwind Low989.10.6066
Predominantly Downwind Medium676.10.8874
Predominantly Downwind High546.41.0981
Chicago-Mac Upwind0.8499
Chicago-Mac All Purpose0.8573
Chicago-Mac Downwind0.8676
Bayview-Mac Cove Island0.7912
Bayview-Mac Shore0.8065
Harvest Moon Regatta564.11.0636
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy657.70.9123
San Francisco Bay Medium789.80.7597
Predominantly Reaching619.60.9684
Predominantly Reaching Low795.00.7548
Predominantly Reaching Medium618.30.9705
Predominantly Reaching High533.31.1250
Windward/Leeward 60-40 Low1123.30.5341
Windward/Leeward 60-40 Medium805.90.7446
Windward/Leeward 60-40 High698.00.8596
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1242.90.4827
5-Band Low / Medium1019.80.5883
5-Band Medium772.30.7769
5-Band Medium / High675.30.8885
5-Band High643.70.9321
ORC Ref  03440002MF1Issued on 23/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 L8.275LSM08.295Acc. 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
ORC Ref  03440002MF1Issued on 23/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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
ORC Ref  03440002MF1Issued on 23/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org