Club
Certificate
Double Handed
2023

Boat

Alida

NOR 9479

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 Angles44.4°42.4°41.8°41.2°41.7°41.8°43.6°
Beat VMG2.833.453.874.114.174.184.05
52°4.375.195.766.086.206.246.17
60°4.625.445.996.316.466.516.50
75°4.815.656.196.516.726.846.93
90°4.995.926.446.676.817.017.29
110°5.106.076.616.967.237.427.70
120°4.955.966.566.957.297.598.07
135°4.495.536.286.737.097.448.18
150°3.794.815.676.316.737.077.74
Run VMG3.294.174.935.596.156.587.23
Gybe Angles144.8°148.7°152.9°160.4°172.7°177.2°179.0°

APH: 644.2

CDL: 6.879

GPH: 722.7

CertNo: 666839

BOAT
ClassDUFOUR 30 CLASSICDesignerOlivier Poncin andBuilderDufour YachtsAge date01/1999Series date01/1996Offset fileDU30CLAS.offData file666839
HULL
Length Overall9.040 mMaximum Beam3.040 mDraft1.559 mDisplacement3,536 kgDLR7.2064IMS DivisionCruiser/RacerDynamic Allowance0.320%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.360m
CREW
Maximum weight170 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.9722.38Headsail Luffed18.7518.75Headsail FlyingSymmetric57.7757.80Asymmetric58.8058.80 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.64Storm Jib6.59Heavy Weather Jib17.80
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric may be tacked on the pole
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  03440002E7DIssued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Alida

NOR 9479

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 VMG1271.31044.7929.9876.2862.6862.1889.5
52°824.6693.3624.9592.4580.7577.2583.1
60°778.6661.3600.8570.8557.5553.1553.5
75°748.4637.4581.6552.6536.1526.2519.7
90°721.5608.3559.2540.1529.0513.7494.0
110°705.9593.0544.4517.5497.8485.0467.6
120°726.7604.2548.8518.1494.1474.2445.9
135°802.1651.3573.6534.9507.5483.7440.2
150°948.8748.1634.4570.1535.1509.4465.0
Run VMG1095.6863.9730.9644.5585.6547.0497.8
Selected Courses
Windward / Leeward1183.4954.3830.4760.3724.1704.5693.6
All purpose908.6746.1662.8618.8596.3582.4569.9
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward798.70.7512
All purpose644.20.9313
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6235
Downwind "popa"0.8459
70% up, 30% down "Ilhabela"0.6769
30% up, 70% down "Ilhabela-inverso"0.7641
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Predominantly Upwind709.70.8455
Predominantly Downwind637.80.9408
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low827.40.7252
Triple Number All Purpose Medium638.40.9398
Triple Number All Purpose High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Predominantly Upwind709.70.8455
Predominantly Downwind637.80.9408
Predominantly Upwind Low945.60.6345
Predominantly Upwind Medium741.30.8093
Predominantly Upwind High706.40.8494
Predominantly Downwind Low878.70.6828
Predominantly Downwind Medium623.20.9628
Predominantly Downwind High524.61.1436
Chicago-Mac Upwind0.8286
Chicago-Mac All Purpose0.8726
Chicago-Mac Downwind0.9243
Bayview-Mac Cove Island0.8101
Bayview-Mac Shore0.8114
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching605.60.9908
Predominantly Reaching Low739.10.8117
Predominantly Reaching Medium596.41.0061
Predominantly Reaching High533.21.1252
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1165.80.5147
5-Band Low / Medium977.20.6140
5-Band Medium777.50.7717
5-Band Medium / High710.70.8442
5-Band High695.50.8627
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance701.3
Triple Number Coastal/Long Distance Low827.4
Triple Number Coastal/Long Distance Medium638.4
Triple Number Coastal/Long Distance High581.2
Triple Number Windward/Leeward Low1068.9
Triple Number Windward/Leeward Medium790.8
Triple Number Windward/Leeward High705.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7252
Triple Number Coastal/Long Distance Medium0.9398
Triple Number Coastal/Long Distance High1.0324
Triple Number Windward/Leeward Low0.5613
Triple Number Windward/Leeward Medium0.7587
Triple Number Windward/Leeward High0.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low827.4
Triple Number Coastal/Long Distance Medium638.4
Triple Number Coastal/Long Distance High581.2
Triple Number Windward/Leeward Low1068.9
Triple Number Windward/Leeward Medium790.8
Triple Number Windward/Leeward High705.3
Predominantly Upwind709.7
Predominantly Downwind637.8
Predominantly Reaching615.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7252
Triple Number Coastal/Long Distance Medium0.9398
Triple Number Coastal/Long Distance High1.0324
Triple Number Windward/Leeward Low0.5613
Triple Number Windward/Leeward Medium0.7587
Triple Number Windward/Leeward High0.8507
Coastal/Long Distance0.8555
Predominantly Upwind0.8455
Predominantly Downwind0.9408
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7252
Tretall Distanseseilas Mellomvind0.9398
Tretall Distanseseilas Mye vind1.0324
Tretall Pølsebane Lite vind0.5613
Tretall Pølsebane Mellomvind0.7587
Tretall Pølsebane Mye vind0.8507
Distanseseilas ett tall (OSN 8-16kn)0.8555
Distanseseilas ett tall (APH 6-20kn)0.9313
Enkeltall Motvind0.8455
Enkeltall Medvind0.9408
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Coastal/Long Distance701.30.8555
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind709.70.8455
Predominantly Downwind637.80.9408
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore696.90.8610
Cape Doctor Coastal573.61.0460
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7252
Triple Number Coastal/Long Distance Medium0.9398
Triple Number Coastal/Long Distance High1.0324
Triple Number Windward/Leeward Low0.5613
Triple Number Windward/Leeward Medium0.7587
Triple Number Windward/Leeward High0.8507
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7252
Triple Number Coastal/Long Distance Medium0.9398
Triple Number Coastal/Long Distance High1.0324
Triple Number Windward/Leeward Low0.5613
Triple Number Windward/Leeward Medium0.7587
Triple Number Windward/Leeward High0.8507
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Predominantly Upwind709.70.8455
Predominantly Downwind637.80.9408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance701.30.8555
Triple Number Coastal/Long Distance Low827.40.7252
Triple Number Coastal/Long Distance Medium638.40.9398
Triple Number Coastal/Long Distance High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1174.7894.5746.8662.4619.3586.0533.9
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low827.40.7252
Triple Number All Purpose Medium638.40.9398
Triple Number All Purpose High581.21.0324
Triple Number Windward/Leeward Low1068.90.5613
Triple Number Windward/Leeward Medium790.80.7587
Triple Number Windward/Leeward High705.30.8507
Predominantly Upwind709.70.8455
Predominantly Downwind637.80.9408
Predominantly Upwind Low945.60.6345
Predominantly Upwind Medium741.30.8093
Predominantly Upwind High706.40.8494
Predominantly Downwind Low878.70.6828
Predominantly Downwind Medium623.20.9628
Predominantly Downwind High524.61.1436
Chicago-Mac Upwind0.8286
Chicago-Mac All Purpose0.8726
Chicago-Mac Downwind0.9243
Bayview-Mac Cove Island0.8101
Bayview-Mac Shore0.8114
Harvest Moon Regatta549.61.0917
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy694.20.8643
San Francisco Bay Medium786.80.7626
Predominantly Reaching605.60.9908
Predominantly Reaching Low739.10.8117
Predominantly Reaching Medium596.41.0061
Predominantly Reaching High533.21.1252
Windward/Leeward 60-40 Low1086.70.5521
Windward/Leeward 60-40 Medium829.50.7233
Windward/Leeward 60-40 High762.20.7872
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1165.80.5147
5-Band Low / Medium977.20.6140
5-Band Medium777.50.7717
5-Band Medium / High710.70.8442
5-Band High695.50.8627
ORC Ref  03440002E7DIssued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Alida

NOR 9479

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 30 CLASSICMeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.040Max. Beam3.040Draft1.559Displacement3,536Wetted area18.59IMS L7.949LSM07.886Acc. length9.040Sink (kg/mm) 14.37
VCGD0.180VCGM0.218RM Rated (kg·m) 68.6Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.360PBWPIPA0.0031
EDL1.610ST10.035ST20.180
ST30.180ST40.100ST50.290
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P10.190IG11.480ISP11.480MDT10.120MDL10.180MDT20.120MDL20.180TL0.000MW0.000GO0.000
E3.720J3.340BAS1.630FSDFoilSFJ0.000SPL3.420WPLTPS0.000BDMWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.180Flotation Date01/01/2015MeasurerComment
SFFP0.787FFMFF1.149LCFcl4.866SG1.0280
SAFP8.220FAMFA0.960LCFsh5.100HBI1.022
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002E7DIssued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Alida

NOR 9479

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment372-2015040212000.130.751.342.303.0521.9702/04/2015
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment372-2015040212010.040.410.781.612.533.5211.14NoNo 18.7502/04/2015
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment372-20170405210010.6810.6710.686.606.0757.7705/04/2017
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment372-20150402120311.8610.6411.256.355.96107%58.8002/04/2015
ORC Ref  03440002E7DIssued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org