Club
Certificate
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 Angles45.0°43.5°42.0°41.1°40.0°40.0°40.8°
Beat VMG2.803.433.884.234.444.504.46
52°4.355.225.816.186.416.516.54
60°4.625.496.046.376.596.726.79
75°4.785.666.226.556.776.957.16
90°5.015.986.526.826.997.107.40
110°5.086.086.636.997.307.567.94
120°4.915.946.556.947.287.608.24
135°4.455.486.256.707.057.398.10
150°3.764.775.636.286.697.027.65
Run VMG3.264.134.895.556.126.567.17
Gybe Angles144.8°148.7°152.9°160.4°172.7°178.1°179.0°

APH: 636.2

CDL: 7.125

GPH: 717.1

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 Allowance0.330%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.360m
CREW
Maximum weight491 kgMinimum weight368 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  03440002E5MIssued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
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 VMG1285.51050.3926.8850.6810.9799.8806.4
52°828.0689.4620.0582.3561.8552.8550.1
60°780.1656.2596.3564.8546.3536.0530.5
75°752.9636.1578.7549.8531.5517.9502.8
90°719.1602.3551.8527.5514.8506.8486.7
110°709.3592.3542.9515.1493.4476.2453.3
120°732.6606.5549.3518.6494.5473.4437.0
135°809.1656.8576.3537.2510.8487.5444.7
150°957.7754.3639.0573.0537.8513.0470.6
Run VMG1105.8871.0736.2648.2587.9549.0501.8
Selected Courses
Windward / Leeward1195.7960.6831.5749.4699.4674.4654.1
All purpose915.6747.9661.5611.2581.4564.5545.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward787.00.7624
All purpose636.20.9431
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6432
Downwind "popa"0.8400
70% up, 30% down "Ilhabela"0.6918
30% up, 70% down "Ilhabela-inverso"0.7694
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Predominantly Upwind697.30.8604
Predominantly Downwind636.40.9428
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low831.70.7214
Triple Number All Purpose Medium631.90.9495
Triple Number All Purpose High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Predominantly Upwind697.30.8604
Predominantly Downwind636.40.9428
Predominantly Upwind Low951.00.6309
Predominantly Upwind Medium726.60.8258
Predominantly Upwind High664.60.9028
Predominantly Downwind Low884.70.6782
Predominantly Downwind Medium623.80.9619
Predominantly Downwind High523.31.1465
Chicago-Mac Upwind0.8412
Chicago-Mac All Purpose0.8794
Chicago-Mac Downwind0.9256
Bayview-Mac Cove Island0.8113
Bayview-Mac Shore0.8141
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching599.21.0013
Predominantly Reaching Low740.60.8101
Predominantly Reaching Medium591.91.0137
Predominantly Reaching High523.31.1467
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1177.60.5095
5-Band Low / Medium982.80.6105
5-Band Medium766.10.7832
5-Band Medium / High681.50.8804
5-Band High657.60.9124
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance694.1
Triple Number Coastal/Long Distance Low831.7
Triple Number Coastal/Long Distance Medium631.9
Triple Number Coastal/Long Distance High561.5
Triple Number Windward/Leeward Low1078.2
Triple Number Windward/Leeward Medium781.9
Triple Number Windward/Leeward High673.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7214
Triple Number Coastal/Long Distance Medium0.9495
Triple Number Coastal/Long Distance High1.0686
Triple Number Windward/Leeward Low0.5565
Triple Number Windward/Leeward Medium0.7674
Triple Number Windward/Leeward High0.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low831.7
Triple Number Coastal/Long Distance Medium631.9
Triple Number Coastal/Long Distance High561.5
Triple Number Windward/Leeward Low1078.2
Triple Number Windward/Leeward Medium781.9
Triple Number Windward/Leeward High673.0
Predominantly Upwind697.3
Predominantly Downwind636.4
Predominantly Reaching612.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7214
Triple Number Coastal/Long Distance Medium0.9495
Triple Number Coastal/Long Distance High1.0686
Triple Number Windward/Leeward Low0.5565
Triple Number Windward/Leeward Medium0.7674
Triple Number Windward/Leeward High0.8915
Coastal/Long Distance0.8644
Predominantly Upwind0.8604
Predominantly Downwind0.9428
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7214
Tretall Distanseseilas Mellomvind0.9495
Tretall Distanseseilas Mye vind1.0686
Tretall Pølsebane Lite vind0.5565
Tretall Pølsebane Mellomvind0.7674
Tretall Pølsebane Mye vind0.8915
Distanseseilas ett tall (OSN 8-16kn)0.8644
Distanseseilas ett tall (APH 6-20kn)0.9431
Enkeltall Motvind0.8604
Enkeltall Medvind0.9428
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Coastal/Long Distance694.10.8644
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind697.30.8604
Predominantly Downwind636.40.9428
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore660.20.9088
Cape Doctor Coastal550.91.0891
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7214
Triple Number Coastal/Long Distance Medium0.9495
Triple Number Coastal/Long Distance High1.0686
Triple Number Windward/Leeward Low0.5565
Triple Number Windward/Leeward Medium0.7674
Triple Number Windward/Leeward High0.8915
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7214
Triple Number Coastal/Long Distance Medium0.9495
Triple Number Coastal/Long Distance High1.0686
Triple Number Windward/Leeward Low0.5565
Triple Number Windward/Leeward Medium0.7674
Triple Number Windward/Leeward High0.8915
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Predominantly Upwind697.30.8604
Predominantly Downwind636.40.9428
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance694.10.8644
Triple Number Coastal/Long Distance Low831.70.7214
Triple Number Coastal/Long Distance Medium631.90.9495
Triple Number Coastal/Long Distance High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1186.7899.5746.7653.6603.4569.7517.1
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low831.70.7214
Triple Number All Purpose Medium631.90.9495
Triple Number All Purpose High561.51.0686
Triple Number Windward/Leeward Low1078.20.5565
Triple Number Windward/Leeward Medium781.90.7674
Triple Number Windward/Leeward High673.00.8915
Predominantly Upwind697.30.8604
Predominantly Downwind636.40.9428
Predominantly Upwind Low951.00.6309
Predominantly Upwind Medium726.60.8258
Predominantly Upwind High664.60.9028
Predominantly Downwind Low884.70.6782
Predominantly Downwind Medium623.80.9619
Predominantly Downwind High523.31.1465
Chicago-Mac Upwind0.8412
Chicago-Mac All Purpose0.8794
Chicago-Mac Downwind0.9256
Bayview-Mac Cove Island0.8113
Bayview-Mac Shore0.8141
Harvest Moon Regatta545.81.0993
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy663.20.9047
San Francisco Bay Medium778.70.7705
Predominantly Reaching599.21.0013
Predominantly Reaching Low740.60.8101
Predominantly Reaching Medium591.91.0137
Predominantly Reaching High523.31.1467
Windward/Leeward 60-40 Low1096.10.5474
Windward/Leeward 60-40 Medium816.20.7351
Windward/Leeward 60-40 High718.00.8357
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1177.60.5095
5-Band Low / Medium982.80.6105
5-Band Medium766.10.7832
5-Band Medium / High681.50.8804
5-Band High657.60.9124
ORC Ref  03440002E5MIssued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
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 L8.087LSM07.886Acc. 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  03440002E5MIssued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
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  03440002E5MIssued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org