Club
Certificate
Non Spinnaker
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°42.3°41.1°40.0°40.0°40.8°
Beat VMG2.803.433.894.234.444.504.46
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°4.705.606.216.576.827.047.40
110°4.245.235.986.476.797.067.56
120°4.015.015.796.346.696.967.49
135°3.544.535.345.996.446.757.28
150°3.064.014.845.536.106.507.04
Run VMG2.663.504.284.985.616.136.79
Gybe Angles152.3°157.4°164.9°178.4°179.3°179.3°179.9°

APH: 671.7

CDL: 7.125

GPH: 763.3

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 Allowance0.350%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 FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail6.64Storm Jib6.59Heavy Weather Jib17.80
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  03440002E99Issued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.01 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 VMG1285.21050.0926.6850.3810.9800.0806.7
52°827.8689.2619.9582.2561.8552.9550.2
60°779.8656.1596.1564.7546.3536.0530.6
75°752.7636.0578.5549.7531.4517.8502.8
90°766.7643.3580.0547.7527.6511.5486.6
110°849.2688.1601.8556.6530.2509.9476.1
120°897.8718.4621.6568.3538.4516.9480.5
135°1017.5793.8673.6600.7558.9533.2494.8
150°1175.7896.7744.3650.4590.2554.1511.5
Run VMG1355.11027.3841.2722.2641.6587.4530.5
Selected Courses
Windward / Leeward1320.21038.7883.9786.3726.3693.7668.6
All purpose1009.2810.1703.8641.1604.0583.0561.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward830.60.7224
All purpose671.70.8932
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6432
Downwind "popa"0.7361
70% up, 30% down "Ilhabela"0.6685
30% up, 70% down "Ilhabela-inverso"0.7056
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Predominantly Upwind718.50.8351
Predominantly Downwind696.80.8611
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low909.60.6596
Triple Number All Purpose Medium666.80.8998
Triple Number All Purpose High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Predominantly Upwind718.50.8351
Predominantly Downwind696.80.8611
Predominantly Upwind Low992.80.6043
Predominantly Upwind Medium733.50.8180
Predominantly Upwind High668.00.8982
Predominantly Downwind Low1023.00.5865
Predominantly Downwind Medium694.70.8636
Predominantly Downwind High557.81.0756
Chicago-Mac Upwind0.8162
Chicago-Mac All Purpose0.8279
Chicago-Mac Downwind0.8423
Bayview-Mac Cove Island0.7622
Bayview-Mac Shore0.7763
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching637.20.9416
Predominantly Reaching Low824.70.7275
Predominantly Reaching Medium635.50.9442
Predominantly Reaching High543.91.1031
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1298.50.4621
5-Band Low / Medium1065.20.5633
5-Band Medium805.80.7446
5-Band Medium / High702.70.8538
5-Band High673.00.8916
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance734.3
Triple Number Coastal/Long Distance Low909.6
Triple Number Coastal/Long Distance Medium666.8
Triple Number Coastal/Long Distance High580.2
Triple Number Windward/Leeward Low1179.5
Triple Number Windward/Leeward Medium824.9
Triple Number Windward/Leeward High692.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6596
Triple Number Coastal/Long Distance Medium0.8998
Triple Number Coastal/Long Distance High1.0342
Triple Number Windward/Leeward Low0.5087
Triple Number Windward/Leeward Medium0.7274
Triple Number Windward/Leeward High0.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low909.6
Triple Number Coastal/Long Distance Medium666.8
Triple Number Coastal/Long Distance High580.2
Triple Number Windward/Leeward Low1179.5
Triple Number Windward/Leeward Medium824.9
Triple Number Windward/Leeward High692.4
Predominantly Upwind718.5
Predominantly Downwind696.8
Predominantly Reaching660.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6596
Triple Number Coastal/Long Distance Medium0.8998
Triple Number Coastal/Long Distance High1.0342
Triple Number Windward/Leeward Low0.5087
Triple Number Windward/Leeward Medium0.7274
Triple Number Windward/Leeward High0.8665
Coastal/Long Distance0.8171
Predominantly Upwind0.8351
Predominantly Downwind0.8611
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.6596
Tretall Distanseseilas Mellomvind0.8998
Tretall Distanseseilas Mye vind1.0342
Tretall Pølsebane Lite vind0.5087
Tretall Pølsebane Mellomvind0.7274
Tretall Pølsebane Mye vind0.8665
Distanseseilas ett tall (OSN 8-16kn)0.8171
Distanseseilas ett tall (APH 6-20kn)0.8932
Enkeltall Motvind0.8351
Enkeltall Medvind0.8611
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Coastal/Long Distance734.30.8171
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind718.50.8351
Predominantly Downwind696.80.8611
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore676.10.8874
Cape Doctor Coastal567.91.0565
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6596
Triple Number Coastal/Long Distance Medium0.8998
Triple Number Coastal/Long Distance High1.0342
Triple Number Windward/Leeward Low0.5087
Triple Number Windward/Leeward Medium0.7274
Triple Number Windward/Leeward High0.8665
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6596
Triple Number Coastal/Long Distance Medium0.8998
Triple Number Coastal/Long Distance High1.0342
Triple Number Windward/Leeward Low0.5087
Triple Number Windward/Leeward Medium0.7274
Triple Number Windward/Leeward High0.8665
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Predominantly Upwind718.50.8351
Predominantly Downwind696.80.8611
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance734.30.8171
Triple Number Coastal/Long Distance Low909.60.6596
Triple Number Coastal/Long Distance Medium666.80.8998
Triple Number Coastal/Long Distance High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1323.6976.7795.3685.7627.2589.2535.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low909.60.6596
Triple Number All Purpose Medium666.80.8998
Triple Number All Purpose High580.21.0342
Triple Number Windward/Leeward Low1179.50.5087
Triple Number Windward/Leeward Medium824.90.7274
Triple Number Windward/Leeward High692.40.8665
Predominantly Upwind718.50.8351
Predominantly Downwind696.80.8611
Predominantly Upwind Low992.80.6043
Predominantly Upwind Medium733.50.8180
Predominantly Upwind High668.00.8982
Predominantly Downwind Low1023.00.5865
Predominantly Downwind Medium694.70.8636
Predominantly Downwind High557.81.0756
Chicago-Mac Upwind0.8162
Chicago-Mac All Purpose0.8279
Chicago-Mac Downwind0.8423
Bayview-Mac Cove Island0.7622
Bayview-Mac Shore0.7763
Harvest Moon Regatta576.61.0405
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy684.30.8768
San Francisco Bay Medium823.40.7287
Predominantly Reaching637.20.9416
Predominantly Reaching Low824.70.7275
Predominantly Reaching Medium635.50.9442
Predominantly Reaching High543.91.1031
Windward/Leeward 60-40 Low1177.10.5097
Windward/Leeward 60-40 Medium844.50.7104
Windward/Leeward 60-40 High730.80.8210
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1298.50.4621
5-Band Low / Medium1065.20.5633
5-Band Medium805.80.7446
5-Band Medium / High702.70.8538
5-Band High673.00.8916
ORC Ref  03440002E99Issued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.01 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 L8.083LSM07.886Acc. 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  03440002E99Issued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.01 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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
ORC Ref  03440002E99Issued on 20/03/2023Valid until 31/03/2024
VPP ver: 2023 1.01 | © ORC | www.orc.org