Club Certificate2026
HALF DUKEFRA-45916
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles46.0°43.0°41.5°39.8°38.7°38.4°38.6°39.5°40.3°
Beat VMG2.173.053.674.094.334.424.464.424.30
52°3.404.635.435.876.116.226.276.286.23
60°3.644.855.636.026.246.386.446.476.47
75°3.794.985.756.156.386.556.686.806.87
90°3.674.885.726.196.436.626.817.137.30
110°3.544.915.846.336.646.917.157.437.56
120°3.414.755.726.276.626.937.257.727.95
135°3.014.325.326.036.446.777.117.788.32
150°2.533.734.745.576.136.496.797.468.07
Run VMG2.193.234.114.855.495.976.336.907.50
Gybe Angles143.5°147.8°151.6°154.7°162.6°168.7°176.8°177.2°177.2°
APH ToD:642.9CDL: 6.850APH ToT: 0.9333CertNo:26126a
BOAT
ClassGOLDEN SHAMROCKDesignerR. HOLLANDBuilderSOUTH COAST BOATY.Age date06/1975Series date01/1975Offset fileH505.BOFData fileF45916_26126a
HULL
Length Overall9.046 mMaximum Beam3.098 mDraft1.652 mDisplacement3,250 kgDLR9.4122IMS DivisionCruiser/RacerDynamic Allowance0.320%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.320m
CREW
Maximum weight415 kg(default)Minimum weight285 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail17.8618.12Headsail Luffed29.6829.68Headsail FlyingSymmetric62.6762.67Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail5.25Storm Jib6.90Heavy Weather Jib18.61
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 53.5 kg·m Stability Index 113.8
COMMENTS
2026: H.Sail Furl. Off / 2025: 1st ORC / Headsail Furler / Small P,IG,ISP / YANMAR 2GM20 (+50 kg) / From: STD
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  04330004JB2 Issued on 30/03/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
HALF DUKEFRA-45916
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1662.51181.1982.0879.2831.4814.5807.1815.2838.0
52°1060.0778.4663.1612.8589.7578.5574.0573.3577.5
60°989.3741.7639.6597.6576.6564.7559.0556.0556.7
75°948.9722.3625.7585.8564.4549.5538.7529.1524.1
90°980.0737.6629.8581.1559.5543.9528.8505.2493.2
110°1016.9733.1616.2569.1542.4521.1503.7484.7476.3
120°1056.7758.7629.5574.1544.1519.2496.4466.5452.8
135°1197.2833.8676.4596.9558.9531.7506.2462.6432.5
150°1422.4964.2760.1646.8587.2554.9529.9482.7446.0
Run VMG1642.41113.4876.4741.7656.1603.4568.9521.8479.7
Selected Courses
Windward / Leeward1652.51147.3929.2810.4743.7708.9688.0668.5658.8
All purpose1254.8893.0738.3661.1620.6598.0582.1563.4554.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward779.50.7697
All purpose642.90.9333
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6656
Downwind "popa"0.8265
70% up, 30% down "Ilhabela"0.7068
30% up, 70% down "Ilhabela-inverso"0.7706
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Predominantly Upwind695.70.8624
Predominantly Downwind647.70.9264
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP669.20.8966 Predom. Rc High533.51.1247 5B SF Bay L/M853.90.7027 TriNum AP Low815.70.7356 Predom. Dn Low986.70.6081 5B SF Bay Med738.00.8130 TriNum AP Med638.30.9399 Predom. Dn L/M729.00.8230 5B SF Bay M/H679.70.8828 TriNum AP High579.01.0362 Predom. Dn Med625.60.9591 5B SF Bay High659.40.9099 TriNum W/L Low1087.80.5516 Predom. Dn M/H564.11.0637 5B AP Low905.10.6629 TriNum W/L Med772.70.7765 Predom. Dn High530.01.1321 5B AP L/M716.50.8374 TriNum W/L Hig685.90.8747 ChiMac Up Low870.10.6896 5B AP Med630.10.9522 Predom. Upwind725.00.8276 ChiMac Up Med788.40.7610 5B AP M/H584.91.0259 Predom. Reaching643.40.9326 ChiMac Up High695.60.8626 5B AP High565.11.0617 Predom. Downwind677.80.8852 ChiMac Off Low848.50.7071 5B W/L Low1219.00.4922 Predom. Up Low987.30.6077 ChiMac Off Med751.10.7989 5B W/L L/M892.10.6726 Predom. Up L/M757.60.7920 ChiMac Off High636.70.9423 5B W/L Med759.90.7896 Predom. Up Med674.50.8896 ChiMac AP Low855.70.7012 5B W/L M/H693.00.8659 Predom. Up M/H636.90.9421 ChiMac AP Med767.20.7820 5B W/L High670.20.8953 Predom. Up High625.90.9586 ChiMac AP High664.60.9028 W/L 60-40 Low1225.60.4896 Predom. Rc Low883.60.6790 BayMac Cove Island981.20.6115 W/L 60-40 L/M904.20.6636 Predom. Rc L/M678.10.8849 BayMac Shore973.70.6162 W/L 60-40 Med777.30.7719 Predom. Rc Med601.60.9973 Harvest Moon570.01.0526 W/L 60-40 M/H716.70.8371 Predom. Rc M/H558.11.0752 5B SF Bay Low1031.90.5814 W/L 60-40 High699.70.8575      SA/DSPL Up21.58SA/DSPL Dn36.56
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance696.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating696.10.8619
FinRating, kevyt tuuli1202.40.8316
FinRating, kova tuuli569.40.8781
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8619
Triple Number Coastal/Long Distance Low0.7356
Triple Number Coastal/Long Distance Medium0.9400
Triple Number Coastal/Long Distance High1.0362
Triple Number Windward/Leeward Low0.5779
Triple Number Windward/Leeward Medium0.7765
Triple Number Windward/Leeward High0.8747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
For information
General Purpose Handicap (GPH)719.1
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Saronikos S All Purpose730.50.8214
Saronikos S Upwind821.70.7302
Saronikos S Downwind621.40.9656
Saronikos N All Purpose768.70.7805
Saronikos N Upwind859.50.6981
Saronikos N Downwind676.80.8865
Saronikos SW All Purpose737.90.8131
Saronikos SW Upwind843.30.7115
Saronikos SW Downwind633.80.9467
Saronikos NE All Purpose796.50.7533
Saronikos NE Upwind808.40.7423
Saronikos NE Downwind761.50.7880
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose669.20.8966
5-Band All Purpose Low982.90.6104
5-Band All Purpose L/M741.60.8091
5-Band All Purpose Med649.20.9243
5-Band All Purpose M/H599.91.0002
5-Band All Purpose High577.31.0393
Single Number Predominant Upwind694.30.8642
Single Number Predominant Reaching618.60.9699
Single Number Predominant Downwind648.50.9252
5-Band 50-50 Windward/Leeward Low1219.00.4922
5-Band 50-50 Windward/Leeward L/M892.10.6726
5-Band 50-50 Windward/Leeward Med759.90.7896
5-Band 50-50 Windward/Leeward M/H693.00.8659
5-Band 50-50 Windward/Leeward High670.20.8953
5-Band 60-40 Windward/Leeward Low1225.60.4896
5-Band 60-40 Windward/Leeward L/M904.20.6636
5-Band 60-40 Windward/Leeward Med777.30.7719
5-Band 60-40 Windward/Leeward M/H716.70.8371
5-Band 60-40 Windward/Leeward High699.70.8575
Triple Number 50-50 Windward/Leeward Low1087.80.5516
Triple Number 50-50 Windward/Leeward Med772.80.7764
Triple Number 50-50 Windward/Leeward High685.90.8747
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward797.00.7528
Triple Number 60-40 Windward/Leeward Low1096.10.5474
Triple Number 60-40 Windward/Leeward Med789.40.7601
Triple Number 60-40 Windward/Leeward High711.10.8437
Triple Number All-Purpose Low885.00.6780
Triple Number All-Purpose Med657.90.9119
Triple Number All-Purpose High593.31.0113
Triple Number Predominant Upwind Low901.30.6657
Triple Number Predominant Upwind Med684.80.8762
Triple Number Predominant Upwind High640.10.9374
Triple Number Predominant Reaching Low804.20.7461
Triple Number Predominant Reaching Med618.00.9709
Triple Number Predominant Reaching High541.91.1071
Triple Number Predominant Downwind Low881.90.6803
Triple Number Predominant Downwind Med635.70.9438
Triple Number Predominant Downwind High543.21.1045
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low815.7
Triple Number Coastal/Long Distance Medium638.3
Triple Number Coastal/Long Distance High579.0
Triple Number Windward/Leeward Low1038.2
Triple Number Windward/Leeward Medium772.7
Triple Number Windward/Leeward High685.9
Predominantly Upwind695.7
Predominantly Downwind647.7
Predominantly Reaching626.5
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7356
Triple Number Coastal/Long Distance Medium0.9400
Triple Number Coastal/Long Distance High1.0362
Triple Number Windward/Leeward Low0.5779
Triple Number Windward/Leeward Medium0.7765
Triple Number Windward/Leeward High0.8747
Coastal/Long Distance0.8619
Predominantly Upwind0.8624
Predominantly Downwind0.9264
For information
General Purpose Handicap (GPH)719.1
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9333
Distanseseilas Trippeltall svak vind0.7356
Distanseseilas Trippeltall mellomvind0.9400
Distanseseilas Trippeltall sterk vind1.0362
Pølsebane Trippeltall svak vind0.5779
Pølsebane Trippeltall mellomvind0.7765
Pølsebane Trippeltall sterk vind0.8747
Motvind Singeltall0.8624
Medvind Singeltall0.9264
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Coastal/Long Distance696.10.8619
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind695.70.8624
Predominantly Downwind647.70.9264
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore661.70.9067
Cape Doctor Coastal557.41.0765
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7356
Triple Number Coastal/Long Distance Medium0.9400
Triple Number Coastal/Long Distance High1.0362
Triple Number Windward/Leeward Low0.5779
Triple Number Windward/Leeward Medium0.7765
Triple Number Windward/Leeward High0.8747
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7356
Triple Number Coastal/Long Distance Medium0.9400
Triple Number Coastal/Long Distance High1.0362
Triple Number Windward/Leeward Low0.5779
Triple Number Windward/Leeward Medium0.7765
Triple Number Windward/Leeward High0.8747
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Predominantly Upwind695.70.8624
Predominantly Downwind647.70.9264
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance696.10.8619
Triple Number Coastal/Long Distance Low815.70.7356
Triple Number Coastal/Long Distance Medium638.30.9400
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1038.20.5779
Triple Number Windward/Leeward Medium772.70.7765
Triple Number Windward/Leeward High685.90.8747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1651.51143.9876.3737.1660.0620.0588.2538.6527.4
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP669.20.8966 Predom. Dn High530.01.1321 5B AP M/H584.91.0259 TriNum AP Low815.70.7356 Predom. Rc Low883.60.6790 5B AP High565.11.0617 TriNum AP Med638.30.9399 Predom. Rc L/M678.10.8849 5B SF Bay Low1031.90.5814 TriNum AP High579.01.0362 Predom. Rc Med601.60.9973 5B SF Bay L/M853.90.7027 TriNum W/L Low1087.80.5516 Predom. Rc M/H558.11.0752 5B SF Bay Med738.00.8130 TriNum W/L Med772.70.7765 Predom. Rc High533.51.1247 5B SF Bay M/H679.70.8828 TriNum W/L Hig685.90.8747 5B W/L Low1219.00.4922 5B SF Bay High659.40.9099 Predom. Upwind725.00.8276 5B W/L L/M892.10.6726 ChiMac Up Low870.10.6896 Predom. Reaching643.40.9326 5B W/L Med759.90.7896 ChiMac Up Med788.40.7610 Predom. Downwind677.80.8852 5B W/L M/H693.00.8659 ChiMac Up High695.60.8626 Predom. Up Low987.30.6077 5B W/L High670.20.8953 ChiMac Off Low848.50.7071 Predom. Up L/M757.60.7920 W/L 60-40 Low1225.60.4896 ChiMac Off Med751.10.7989 Predom. Up Med674.50.8896 W/L 60-40 L/M904.20.6636 ChiMac Off High636.70.9423 Predom. Up M/H636.90.9421 W/L 60-40 Med777.30.7719 ChiMac AP Low855.70.7012 Predom. Up High625.90.9586 W/L 60-40 M/H716.70.8371 ChiMac AP Med767.20.7820 Predom. Dn Low986.70.6081 W/L 60-40 High699.70.8575 ChiMac AP High664.60.9028 Predom. Dn L/M729.00.8230 5B AP Low905.10.6629 BayMac Cove Island981.20.6115 Predom. Dn Med625.60.9591 5B AP L/M716.50.8374 BayMac Shore973.70.6162 Predom. Dn M/H564.11.0637 5B AP Med630.10.9522 Harvest Moon570.01.0526      SA/DSPL Up21.58SA/DSPL Dn36.56
ORC Ref  04330004JB2 Issued on 30/03/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
HALF DUKEFRA-45916
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassGOLDEN SHAMROCKMeasurementHIN1012Plan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.046Maximum beam3.098Draft1.652Displacement3,250Wetted area16.86IMS L7.249LSM07.015Accomod. length9.046Sink (kg/mm) 11.66
VCGD0.010VCGM0.023 RM Rated (kg·m) 53.5Limit of positive stability(°) 116.6 Stability Index 113.8 BLR index 0.0000Default crew weight415 Declared crew weight
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.320PBW0.102PIPA0.0042
PSD0.035PHD0.065PHL0.112
PSA19.0°ESL0.562
ST10.032ST20.095ST30.095
ST40.061ST50.100
RIG
BackstayAdjustableForestayFixedInner forestayAdjustableMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P10.000IG11.740ISP11.800MDT10.120MDL10.165MDT20.110MDL20.125TL2.460MW0.125GO0.125
E3.000J3.600BAS1.300FSD0.030SFJ0.000SPL3.650WPLTPSBD0.085MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.010Flotation Date01/01/2013
SFFP0.574FFM1.065FF1.065LCFcl4.940SG1.0258
SAFP8.488FAM0.919FA0.919LCFsh5.166HBI0.983
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04330004JB2 Issued on 30/03/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
HALF DUKEFRA-45916
Centre de Calcul FFVoile
17 rue Henri Bocquillon
75015 Paris
France
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM10.040.591.091.942.5817.8631/07/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG12.575.3711.01NoNo 29.6831/07/2025
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS111.6611.6611.666.456.4562.6731/07/2025
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9.0 mTable area0.44 m²Headroom1.62 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity60 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity30 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04330004JB2 Issued on 30/03/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org