Double HandedClub Certificate2026
ANEMOSGRE-692
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 Angles46.4°43.5°41.5°40.8°40.6°40.5°40.4°41.0°42.7°
Beat VMG2.032.873.453.834.074.204.254.214.06
52°3.194.375.135.645.926.076.146.156.09
60°3.434.605.355.836.096.246.326.366.35
75°3.614.765.535.996.256.426.546.686.72
90°3.504.685.486.046.336.496.666.927.11
110°3.394.705.636.186.506.746.977.247.38
120°3.254.565.516.136.496.767.037.527.73
135°2.884.155.135.886.336.636.927.527.99
150°2.433.604.585.396.006.386.667.257.79
Run VMG2.103.123.984.705.345.846.226.767.30
Gybe Angles144.7°148.3°152.1°155.6°161.5°167.3°176.3°178.1°177.2°
APH ToD:666.7CDL: 6.575APH ToT: 0.9000CertNo:02166
BOAT
ClassDUFOUR 31DesignerMICHEL DUFOURBuilderDUFOURAge dateSeries date01/1973Offset fileH143.bofData fileGR692
HULL
Length Overall9.353Maximum Beam3.166Draft1.788Displacement4,691DLR11.9626IMS DivisionCruiser/RacerDynamic Allowance0.710%Age Allowance0.650%RS Assessment0.000%
PROPELLER
InstallationShaft non exposedTypeFeathering 2 bladesDiameter0.381m
CREW
Maximum weight170(default)Minimum weight120 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail17.9118.13Headsail Luffed30.7430.74Headsail FlyingSymmetric60.7660.76Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail5.45Storm Jib6.81Heavy Weather Jib18.39
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting Moment 75.3 Stability Index 129.2
COMMENTS
Weighted by measurer.
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  03420004IWH Issued on 25/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
ANEMOSGRE-692
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 VMG1776.11253.31044.4939.6883.9857.1846.9854.5885.7
52°1128.0823.1702.0638.9608.5593.1586.6585.4591.6
60°1048.1782.5672.6617.6591.0576.8569.4566.0567.3
75°998.2756.4651.5601.0575.6560.6550.3539.2535.3
90°1028.5768.6656.9595.9568.7554.3540.8520.1506.2
110°1063.0766.1639.9582.2553.7533.8516.7497.5488.0
120°1107.8790.1653.4587.3555.1532.9512.3478.9465.7
135°1249.7867.0702.3612.7569.0542.8520.2478.6450.6
150°1484.21000.7785.8667.9600.1564.2540.2496.9462.1
Run VMG1713.81155.5905.6765.5673.9616.0578.4532.4493.1
Selected Courses
Windward / Leeward1745.01204.4975.0852.5778.9736.5712.7693.4689.4
All purpose1322.9936.4773.1688.0642.0616.2599.8581.8575.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward815.10.7361
All purpose666.70.9000
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6288
Downwind "popa"0.8035
70% up, 30% down "Ilhabela"0.6726
30% up, 70% down "Ilhabela-inverso"0.7417
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Predominantly Upwind726.30.8261
Predominantly Downwind668.80.8971
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP694.00.8646 Predom. Rc High549.71.0914 5B SF Bay L/M897.10.6688 TriNum AP Low854.80.7019 Predom. Dn Low1030.70.5821 5B SF Bay Med771.90.7773 TriNum AP Med661.90.9065 Predom. Dn L/M756.60.7930 5B SF Bay M/H705.90.8500 TriNum AP High597.11.0048 Predom. Dn Med644.00.9316 5B SF Bay High685.90.8748 TriNum W/L Low1143.00.5249 Predom. Dn M/H578.71.0367 5B AP Low948.50.6326 TriNum W/L Med809.20.7415 Predom. Dn High545.71.0996 5B AP L/M747.80.8023 TriNum W/L Hig711.40.8434 ChiMac Up Low916.20.6549 5B AP Med652.70.9192 Predom. Upwind757.30.7923 ChiMac Up Med827.30.7253 5B AP M/H603.10.9949 Predom. Reaching665.40.9018 ChiMac Up High726.00.8264 5B AP High583.91.0276 Predom. Downwind700.60.8564 ChiMac Off Low883.20.6793 5B W/L Low1282.20.4679 Predom. Up Low1042.50.5756 ChiMac Off Med779.00.7702 5B W/L L/M936.70.6406 Predom. Up L/M795.90.7538 ChiMac Off High657.40.9127 5B W/L Med794.90.7548 Predom. Up Med702.70.8538 ChiMac AP Low895.70.6698 5B W/L M/H719.00.8345 Predom. Up M/H658.80.9108 ChiMac AP Med800.30.7497 5B W/L High696.10.8620 Predom. Up High648.00.9259 ChiMac AP High689.90.8697 W/L 60-40 Low1292.10.4644 Predom. Rc Low925.70.6481 BayMac Cove Island1029.60.5828 W/L 60-40 L/M952.20.6301 Predom. Rc L/M704.80.8514 BayMac Shore1021.80.5872 W/L 60-40 Med815.70.7355 Predom. Rc Med619.10.9691 Harvest Moon585.61.0246 W/L 60-40 M/H745.80.8045 Predom. Rc M/H573.01.0472 5B SF Bay Low1084.70.5532 W/L 60-40 High728.60.8235      SA/DSPL Up17.27SA/DSPL Dn27.93
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance723.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating723.60.8292
FinRating, kevyt tuuli1264.60.7908
FinRating, kova tuuli587.90.8505
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8292
Triple Number Coastal/Long Distance Low0.7019
Triple Number Coastal/Long Distance Medium0.9066
Triple Number Coastal/Long Distance High1.0048
Triple Number Windward/Leeward Low0.5506
Triple Number Windward/Leeward Medium0.7415
Triple Number Windward/Leeward High0.8434
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
For information
General Purpose Handicap (GPH)747.6
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Saronikos S All Purpose764.30.7850
Saronikos S Upwind866.50.6924
Saronikos S Downwind640.00.9375
Saronikos N All Purpose803.40.7468
Saronikos N Upwind905.30.6628
Saronikos N Downwind698.80.8587
Saronikos SW All Purpose772.30.7769
Saronikos SW Upwind888.80.6751
Saronikos SW Downwind654.60.9166
Saronikos NE All Purpose832.10.7211
Saronikos NE Upwind847.80.7077
Saronikos NE Downwind790.40.7591
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose694.00.8646
5-Band All Purpose Low1032.10.5813
5-Band All Purpose L/M774.20.7750
5-Band All Purpose Med672.30.8925
5-Band All Purpose M/H618.10.9707
5-Band All Purpose High596.21.0064
Single Number Predominant Upwind725.00.8276
Single Number Predominant Reaching639.10.9388
Single Number Predominant Downwind669.40.8963
5-Band 50-50 Windward/Leeward Low1282.20.4679
5-Band 50-50 Windward/Leeward L/M936.70.6406
5-Band 50-50 Windward/Leeward Med794.90.7548
5-Band 50-50 Windward/Leeward M/H719.00.8345
5-Band 50-50 Windward/Leeward High696.10.8620
5-Band 60-40 Windward/Leeward Low1292.10.4644
5-Band 60-40 Windward/Leeward L/M952.20.6301
5-Band 60-40 Windward/Leeward Med815.70.7355
5-Band 60-40 Windward/Leeward M/H745.80.8045
5-Band 60-40 Windward/Leeward High728.60.8235
Triple Number 50-50 Windward/Leeward Low1143.00.5249
Triple Number 50-50 Windward/Leeward Med809.30.7414
Triple Number 50-50 Windward/Leeward High711.40.8434
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward835.90.7178
Triple Number 60-40 Windward/Leeward Low1154.60.5197
Triple Number 60-40 Windward/Leeward Med829.30.7235
Triple Number 60-40 Windward/Leeward High739.60.8113
Triple Number All-Purpose Low927.80.6467
Triple Number All-Purpose Med682.20.8795
Triple Number All-Purpose High611.50.9813
Triple Number Predominant Upwind Low949.80.6317
Triple Number Predominant Upwind Med714.70.8395
Triple Number Predominant Upwind High662.20.9060
Triple Number Predominant Reaching Low841.30.7132
Triple Number Predominant Reaching Med637.70.9410
Triple Number Predominant Reaching High556.31.0785
Triple Number Predominant Downwind Low920.00.6522
Triple Number Predominant Downwind Med654.50.9167
Triple Number Predominant Downwind High556.91.0775
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low854.8
Triple Number Coastal/Long Distance Medium661.8
Triple Number Coastal/Long Distance High597.1
Triple Number Windward/Leeward Low1089.7
Triple Number Windward/Leeward Medium809.2
Triple Number Windward/Leeward High711.4
Predominantly Upwind726.3
Predominantly Downwind668.8
Predominantly Reaching646.9
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7019
Triple Number Coastal/Long Distance Medium0.9066
Triple Number Coastal/Long Distance High1.0048
Triple Number Windward/Leeward Low0.5506
Triple Number Windward/Leeward Medium0.7415
Triple Number Windward/Leeward High0.8434
Coastal/Long Distance0.8292
Predominantly Upwind0.8261
Predominantly Downwind0.8971
For information
General Purpose Handicap (GPH)747.6
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9000
Distanseseilas Trippeltall svak vind0.7019
Distanseseilas Trippeltall mellomvind0.9066
Distanseseilas Trippeltall sterk vind1.0048
Pølsebane Trippeltall svak vind0.5506
Pølsebane Trippeltall mellomvind0.7415
Pølsebane Trippeltall sterk vind0.8434
Motvind Singeltall0.8261
Medvind Singeltall0.8971
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Coastal/Long Distance723.60.8292
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind726.30.8261
Predominantly Downwind668.80.8971
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore690.60.8688
Cape Doctor Coastal577.61.0388
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7019
Triple Number Coastal/Long Distance Medium0.9066
Triple Number Coastal/Long Distance High1.0048
Triple Number Windward/Leeward Low0.5506
Triple Number Windward/Leeward Medium0.7415
Triple Number Windward/Leeward High0.8434
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7019
Triple Number Coastal/Long Distance Medium0.9066
Triple Number Coastal/Long Distance High1.0048
Triple Number Windward/Leeward Low0.5506
Triple Number Windward/Leeward Medium0.7415
Triple Number Windward/Leeward High0.8434
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Predominantly Upwind726.30.8261
Predominantly Downwind668.80.8971
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance723.60.8292
Triple Number Coastal/Long Distance Low854.80.7019
Triple Number Coastal/Long Distance Medium661.80.9066
Triple Number Coastal/Long Distance High597.11.0048
Triple Number Windward/Leeward Low1089.70.5506
Triple Number Windward/Leeward Medium809.20.7415
Triple Number Windward/Leeward High711.40.8434
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1741.91199.5918.4771.3685.1639.4605.7553.6543.6
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP694.00.8646 Predom. Dn High545.71.0996 5B AP M/H603.10.9949 TriNum AP Low854.80.7019 Predom. Rc Low925.70.6481 5B AP High583.91.0276 TriNum AP Med661.90.9065 Predom. Rc L/M704.80.8514 5B SF Bay Low1084.70.5532 TriNum AP High597.11.0048 Predom. Rc Med619.10.9691 5B SF Bay L/M897.10.6688 TriNum W/L Low1143.00.5249 Predom. Rc M/H573.01.0472 5B SF Bay Med771.90.7773 TriNum W/L Med809.20.7415 Predom. Rc High549.71.0914 5B SF Bay M/H705.90.8500 TriNum W/L Hig711.40.8434 5B W/L Low1282.20.4679 5B SF Bay High685.90.8748 Predom. Upwind757.30.7923 5B W/L L/M936.70.6406 ChiMac Up Low916.20.6549 Predom. Reaching665.40.9018 5B W/L Med794.90.7548 ChiMac Up Med827.30.7253 Predom. Downwind700.60.8564 5B W/L M/H719.00.8345 ChiMac Up High726.00.8264 Predom. Up Low1042.50.5756 5B W/L High696.10.8620 ChiMac Off Low883.20.6793 Predom. Up L/M795.90.7538 W/L 60-40 Low1292.10.4644 ChiMac Off Med779.00.7702 Predom. Up Med702.70.8538 W/L 60-40 L/M952.20.6301 ChiMac Off High657.40.9127 Predom. Up M/H658.80.9108 W/L 60-40 Med815.70.7355 ChiMac AP Low895.70.6698 Predom. Up High648.00.9259 W/L 60-40 M/H745.80.8045 ChiMac AP Med800.30.7497 Predom. Dn Low1030.70.5821 W/L 60-40 High728.60.8235 ChiMac AP High689.90.8697 Predom. Dn L/M756.60.7930 5B AP Low948.50.6326 BayMac Cove Island1029.60.5828 Predom. Dn Med644.00.9316 5B AP L/M747.80.8023 BayMac Shore1021.80.5872 Predom. Dn M/H578.71.0367 5B AP Med652.70.9192 Harvest Moon585.61.0246      SA/DSPL Up17.27SA/DSPL Dn27.93
ORC Ref  03420004IWH Issued on 25/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
ANEMOSGRE-692
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 31Measurement06/10/2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.353Maximum beam3.166Draft1.788Displacement4,691Wetted area20.00IMS L7.442LSM07.319Accomod. length9.353Sink (kg/mm) 13.72
VCGD-0.078VCGM-0.057 RM Rated (kg·m) 75.3Limit of positive stability(°) 127.6 Stability Index 129.2 BLR index 0.0000Default crew weight170 Declared crew weight 400
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.381PBW0.115PIPA0.0019
PSD0.025PHD0.082PHL0.160
PSA30.0°ESL0.215
RIG
BackstayFixedForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P10.200IG11.670ISP11.670MDT10.110MDL10.170MDT2MDL2TLNo TaperMWGO
E3.050J3.640BAS1.350FSDFoilSFJ0.000SPL3.750WPLTPSBDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date28/05/2024
SFFP0.641FFM1.270FF1.270LCFcl5.416SG
SAFP8.925FAM0.940FA0.940LCFsh5.643HBI1.137
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03420004IWH Issued on 25/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
ANEMOSGRE-692
Hellenic Sailing Federation
Offshore Committee
Επιτροπή Ανοικτής Θαλάσσης
Ελληνικής Ιστιοπλοϊκής Ομοσπονδίας
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.140.621.101.852.4817.9106/10/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.040.671.322.674.045.3711.46NoNo 30.7406/10/2023
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment111.3011.3011.306.476.3860.7606/10/2023211.4511.4511.455.785.8255.2325/02/2026
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9.4 mTable area0.44 m²Headroom1.66 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity68 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity38 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03420004IWH Issued on 25/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org