Club Certificate2026
ALSGRE-27
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
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 Angles47.8°45.5°43.7°42.1°40.8°39.4°38.7°39.1°40.1°
Beat VMG2.153.163.924.504.975.315.495.575.50
52°3.444.935.996.747.267.597.787.907.89
60°3.755.276.317.037.497.787.988.148.16
75°3.995.506.547.247.677.978.208.518.62
90°3.875.386.557.407.908.248.478.749.07
110°3.805.446.697.538.038.428.789.479.95
120°3.685.286.507.397.938.338.729.5210.40
135°3.204.705.926.897.588.038.419.2010.12
150°2.653.965.116.086.887.487.908.549.22
Run VMG2.303.434.425.265.966.506.957.688.29
Gybe Angles140.3°143.5°147.0°148.5°149.6°152.5°157.7°176.2°176.8°
APH ToD:557.9CDL: 9.922APH ToT: 1.0755CertNo:01201
BOAT
ClassDUFOUR 425 GLDesignerUMBERTO FELCIBuilderDUFOURAge date02/2008Series date01/2006Offset fileDUF425CL.OFFData fileGR27
HULL
Length Overall12.600Maximum Beam4.170Draft2.101Displacement8,820DLR6.3860IMS DivisionCruiser/RacerDynamic Allowance0.380%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFeathering 3 bladesDiameter0.460m
CREW
Maximum weight740(declared)Minimum weight610 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail36.6137.38Headsail Luffed42.8942.89Headsail FlyingSymmetricAsymmetric86.4586.45 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail10.73Storm Jib10.91Heavy Weather Jib29.44
SAIL LIMITS
Headsails6
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers5
STABILITY
Righting Moment 236.0 Stability Index 112.3
COMMENTS
Builder's displacement.
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  03420004I4S Issued on 17/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ALSGRE-27
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
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 VMG1671.01140.1917.9799.1724.5678.4656.3646.0655.0
52°1047.8730.0601.3534.2496.0474.4462.9455.9456.4
60°960.1683.7570.7512.4480.9462.5451.3442.5441.2
75°903.0654.8550.5497.3469.2452.0439.3423.1417.4
90°930.8668.5549.7486.7455.4437.1424.8412.0397.1
110°946.3661.5537.9477.8448.2427.8409.8380.2361.9
120°979.5682.2553.5487.2454.0432.2412.9378.0346.2
135°1126.4765.2608.1522.6475.2448.3428.1391.3355.8
150°1357.3908.2704.8592.5523.2481.0455.7421.4390.5
Run VMG1567.31048.7813.9684.1604.1553.6517.7468.5434.4
Selected Courses
Windward / Leeward1619.21094.4865.9741.6664.3616.0587.0557.2544.7
All purpose1214.2835.3671.7584.6533.8502.7482.9460.2447.1
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward698.70.8587
All purpose557.91.0755
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7551
Downwind "popa"0.8954
70% up, 30% down "Ilhabela"0.7923
30% up, 70% down "Ilhabela-inverso"0.8481
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Predominantly Upwind605.10.9916
Predominantly Downwind572.21.0487
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP582.11.0308 Predom. Rc High438.01.3700 5B SF Bay L/M785.80.7636 TriNum AP Low753.50.7962 Predom. Dn Low924.30.6491 5B SF Bay Med652.80.9191 TriNum AP Med554.51.0820 Predom. Dn L/M658.70.9110 5B SF Bay M/H574.41.0446 TriNum AP High479.41.2517 Predom. Dn Med547.41.0960 5B SF Bay High544.71.1015 TriNum W/L Low1031.60.5816 Predom. Dn M/H481.71.2455 5B AP Low844.60.7104 TriNum W/L Med694.80.8635 Predom. Dn High447.81.3398 5B AP L/M644.70.9306 TriNum W/L Hig583.11.0290 ChiMac Up Low806.00.7444 5B AP Med544.31.1023 Predom. Upwind635.50.9442 ChiMac Up Med710.50.8445 5B AP M/H486.71.2328 Predom. Reaching557.91.0755 ChiMac Up High600.40.9993 5B AP High461.91.2990 Predom. Downwind602.00.9966 ChiMac Off Low781.10.7681 5B W/L Low1168.40.5135 Predom. Up Low938.80.6391 ChiMac Off Med679.30.8832 5B W/L L/M826.00.7264 Predom. Up L/M684.60.8765 ChiMac Off High560.41.0706 5B W/L Med679.50.8831 Predom. Up Med580.71.0333 ChiMac AP Low789.30.7601 5B W/L M/H593.41.0111 Predom. Up M/H524.21.1446 ChiMac AP Med691.80.8674 5B W/L High560.21.0710 Predom. Up High505.71.1864 ChiMac AP High578.41.0374 W/L 60-40 Low1178.20.5092 Predom. Rc Low823.10.7290 BayMac Cove Island918.00.6536 W/L 60-40 L/M836.80.7170 Predom. Rc L/M601.40.9977 BayMac Shore910.60.6589 W/L 60-40 Med691.50.8677 Predom. Rc Med511.41.1732 Harvest Moon484.01.2396 W/L 60-40 M/H607.50.9876 Predom. Rc M/H461.51.3002 5B SF Bay Low975.50.6150 W/L 60-40 High578.01.0380      SA/DSPL Up18.49SA/DSPL Dn28.62
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance611.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating611.00.9820
FinRating, kevyt tuuli1151.40.8685
FinRating, kova tuuli465.21.0748
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9820
Triple Number Coastal/Long Distance Low0.7962
Triple Number Coastal/Long Distance Medium1.0821
Triple Number Coastal/Long Distance High1.2517
Triple Number Windward/Leeward Low0.6122
Triple Number Windward/Leeward Medium0.8635
Triple Number Windward/Leeward High1.0290
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
For information
General Purpose Handicap (GPH)633.6
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Saronikos S All Purpose656.40.9141
Saronikos S Upwind741.60.8091
Saronikos S Downwind555.11.0809
Saronikos N All Purpose682.50.8791
Saronikos N Upwind775.50.7737
Saronikos N Downwind604.10.9932
Saronikos SW All Purpose666.00.9009
Saronikos SW Upwind772.70.7765
Saronikos SW Downwind558.91.0735
Saronikos NE All Purpose713.30.8412
Saronikos NE Upwind726.60.8258
Saronikos NE Downwind685.90.8748
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose582.11.0308
5-Band All Purpose Low927.00.6473
5-Band All Purpose L/M669.10.8967
5-Band All Purpose Med562.41.0668
5-Band All Purpose M/H502.01.1953
5-Band All Purpose High476.11.2601
Single Number Predominant Upwind604.30.9929
Single Number Predominant Reaching531.91.1279
Single Number Predominant Downwind572.21.0486
5-Band 50-50 Windward/Leeward Low1168.40.5135
5-Band 50-50 Windward/Leeward L/M826.00.7264
5-Band 50-50 Windward/Leeward Med679.50.8831
5-Band 50-50 Windward/Leeward M/H593.41.0111
5-Band 50-50 Windward/Leeward High560.21.0710
5-Band 60-40 Windward/Leeward Low1178.20.5092
5-Band 60-40 Windward/Leeward L/M836.80.7170
5-Band 60-40 Windward/Leeward Med691.50.8677
5-Band 60-40 Windward/Leeward M/H607.50.9876
5-Band 60-40 Windward/Leeward High578.01.0380
Triple Number 50-50 Windward/Leeward Low1031.60.5816
Triple Number 50-50 Windward/Leeward Med694.90.8634
Triple Number 50-50 Windward/Leeward High583.11.0290
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward710.90.8440
Triple Number 60-40 Windward/Leeward Low1041.50.5761
Triple Number 60-40 Windward/Leeward Med706.70.8490
Triple Number 60-40 Windward/Leeward High598.11.0032
Triple Number All-Purpose Low823.50.7286
Triple Number All-Purpose Med573.31.0465
Triple Number All-Purpose High494.31.2137
Triple Number Predominant Upwind Low843.90.7110
Triple Number Predominant Upwind Med594.91.0086
Triple Number Predominant Upwind High521.41.1508
Triple Number Predominant Reaching Low739.00.8119
Triple Number Predominant Reaching Med530.01.1322
Triple Number Predominant Reaching High445.81.3459
Triple Number Predominant Downwind Low817.30.7342
Triple Number Predominant Downwind Med559.91.0717
Triple Number Predominant Downwind High465.11.2900
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low753.6
Triple Number Coastal/Long Distance Medium554.5
Triple Number Coastal/Long Distance High479.3
Triple Number Windward/Leeward Low980.1
Triple Number Windward/Leeward Medium694.8
Triple Number Windward/Leeward High583.1
Predominantly Upwind605.1
Predominantly Downwind572.2
Predominantly Reaching543.3
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7962
Triple Number Coastal/Long Distance Medium1.0821
Triple Number Coastal/Long Distance High1.2517
Triple Number Windward/Leeward Low0.6122
Triple Number Windward/Leeward Medium0.8635
Triple Number Windward/Leeward High1.0290
Coastal/Long Distance0.9820
Predominantly Upwind0.9916
Predominantly Downwind1.0487
For information
General Purpose Handicap (GPH)633.6
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0755
Distanseseilas Trippeltall svak vind0.7962
Distanseseilas Trippeltall mellomvind1.0821
Distanseseilas Trippeltall sterk vind1.2517
Pølsebane Trippeltall svak vind0.6122
Pølsebane Trippeltall mellomvind0.8635
Pølsebane Trippeltall sterk vind1.0290
Motvind Singeltall0.9916
Medvind Singeltall1.0487
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Coastal/Long Distance611.00.9820
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind605.10.9916
Predominantly Downwind572.21.0487
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore548.51.0940
Cape Doctor Coastal451.01.3303
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7962
Triple Number Coastal/Long Distance Medium1.0821
Triple Number Coastal/Long Distance High1.2517
Triple Number Windward/Leeward Low0.6122
Triple Number Windward/Leeward Medium0.8635
Triple Number Windward/Leeward High1.0290
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7962
Triple Number Coastal/Long Distance Medium1.0821
Triple Number Coastal/Long Distance High1.2517
Triple Number Windward/Leeward Low0.6122
Triple Number Windward/Leeward Medium0.8635
Triple Number Windward/Leeward High1.0290
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Predominantly Upwind605.10.9916
Predominantly Downwind572.21.0487
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low753.60.7962
Triple Number Coastal/Long Distance Medium554.51.0821
Triple Number Coastal/Long Distance High479.31.2517
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium694.80.8635
Triple Number Windward/Leeward High583.11.0290
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1614.01089.8811.6663.5572.2522.2488.0441.1424.3
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP582.11.0308 Predom. Dn High447.81.3398 5B AP M/H486.71.2328 TriNum AP Low753.50.7962 Predom. Rc Low823.10.7290 5B AP High461.91.2990 TriNum AP Med554.51.0820 Predom. Rc L/M601.40.9977 5B SF Bay Low975.50.6150 TriNum AP High479.41.2517 Predom. Rc Med511.41.1732 5B SF Bay L/M785.80.7636 TriNum W/L Low1031.60.5816 Predom. Rc M/H461.51.3002 5B SF Bay Med652.80.9191 TriNum W/L Med694.80.8635 Predom. Rc High438.01.3700 5B SF Bay M/H574.41.0446 TriNum W/L Hig583.11.0290 5B W/L Low1168.40.5135 5B SF Bay High544.71.1015 Predom. Upwind635.50.9442 5B W/L L/M826.00.7264 ChiMac Up Low806.00.7444 Predom. Reaching557.91.0755 5B W/L Med679.50.8831 ChiMac Up Med710.50.8445 Predom. Downwind602.00.9966 5B W/L M/H593.41.0111 ChiMac Up High600.40.9993 Predom. Up Low938.80.6391 5B W/L High560.21.0710 ChiMac Off Low781.10.7681 Predom. Up L/M684.60.8765 W/L 60-40 Low1178.20.5092 ChiMac Off Med679.30.8832 Predom. Up Med580.71.0333 W/L 60-40 L/M836.80.7170 ChiMac Off High560.41.0706 Predom. Up M/H524.21.1446 W/L 60-40 Med691.50.8677 ChiMac AP Low789.30.7601 Predom. Up High505.71.1864 W/L 60-40 M/H607.50.9876 ChiMac AP Med691.80.8674 Predom. Dn Low924.30.6491 W/L 60-40 High578.01.0380 ChiMac AP High578.41.0374 Predom. Dn L/M658.70.9110 5B AP Low844.60.7104 BayMac Cove Island918.00.6536 Predom. Dn Med547.41.0960 5B AP L/M644.70.9306 BayMac Shore910.60.6589 Predom. Dn M/H481.71.2455 5B AP Med544.31.1023 Harvest Moon484.01.2396      SA/DSPL Up18.49SA/DSPL Dn28.62
ORC Ref  03420004I4S Issued on 17/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ALSGRE-27
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 425 GLMeasurement07/03/2017HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall12.600Maximum beam4.170Draft2.101Displacement8,820Wetted area33.58IMS L11.348LSM011.135Accomod. length12.600Sink (kg/mm) 26.57
VCGD0.229VCGM0.184 RM Rated (kg·m) 236.0Limit of positive stability(°) 109.9 Stability Index 112.3 BLR index 0.0000Default crew weight802 Declared crew weight 740
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFeathering 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.460PBWPIPA0.0012
EDLST1ST2
ST3ST4ST5
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P13.150IG14.705ISP14.835MDT10.130MDL10.234MDT20.130MDL20.234TL0.000MW0.234GO0.254
E4.660J4.740BAS1.635FSD0.057SFJ0.120SPL0.000WPLTPS5.330BD0.190MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2013
SFFP0.189FFM1.500FF1.500LCFcl6.974SG1.0260
SAFP11.957FAM1.175FA1.175LCFsh7.266HBI1.302
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03420004I4S Issued on 17/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ALSGRE-27
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment30.171.001.753.023.9336.6112/05/202120.160.931.712.963.9036.0908/03/201810.130.781.482.713.7533.9407/03/2017
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.080.751.452.974.646.4013.90NoNo 42.8912/05/202120.080.731.422.894.526.2713.89NoNo 41.8408/03/2018
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment114.8313.5014.177.287.5097%86.4521/04/2006
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length12.6 mTable area0.55 m²Headroom1.84 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity165 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity102 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03420004I4S Issued on 17/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org