International Certificate2026
DUFFYITA-16134
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 Angles46.7°43.8°41.6°40.1°38.9°38.3°38.1°38.2°39.0°
Beat VMG2.353.334.054.574.895.025.095.125.06
52°3.715.116.036.626.947.097.167.227.22
60°4.005.396.286.817.117.277.357.447.46
75°4.215.586.466.967.267.477.627.787.88
90°4.085.466.406.977.317.537.758.088.29
110°3.795.336.447.087.467.778.058.418.69
120°3.655.156.266.987.407.748.088.739.14
135°3.184.615.736.617.157.527.888.649.47
150°2.633.915.025.966.707.187.538.228.99
Run VMG2.283.394.355.185.916.516.987.658.29
Gybe Angles142.0°145.9°150.5°153.2°158.8°165.5°172.7°178.1°177.2°
APH ToD:577.1CDL: 8.885APH ToT: 1.0397CertNo:26/2
BOAT
ClassDufour 34DesignerFelci/RoseoBuilderDufour YachtsAge date04/2009Series date07/2003Offset fileDUF34PERF.offData fileI16134
HULL
Length Overall10.300 mMaximum Beam3.482 mDraft1.953 mDisplacement5,739 kgDLR6.8263IMS DivisionCruiser/RacerDynamic Allowance0.310%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.415m
CREW
Maximum weight550 kg(declared)Minimum weight420 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail32.8533.59Headsail Luffed35.0435.04Headsail FlyingSymmetric75.6575.65Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail9.75Storm Jib8.71Heavy Weather Jib23.52
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 120.1 kg·m Stability Index 116.4
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  03190004OLN Issued on 05/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
DUFFYITA-16134
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 VMG1534.31079.7888.9788.2736.9717.0707.4702.5711.7
52°971.3704.4596.9543.4518.7507.8502.9498.3498.3
60°900.1667.8572.8528.3506.4495.0489.7484.1482.6
75°855.0645.3557.3517.2495.8482.1472.7462.8457.1
90°882.6659.1562.1516.9492.7478.1464.7445.3434.2
110°948.8675.5559.4508.6482.5463.1447.1427.8414.4
120°987.5699.7575.2515.9486.3464.8445.4412.5393.9
135°1133.6780.2627.9545.0503.5478.5457.0416.9380.2
150°1369.1920.1716.9604.0536.9501.1477.9438.0400.4
Run VMG1580.91062.4827.6695.2609.0552.7515.8470.6434.4
Selected Courses
Windward / Leeward1557.61071.1858.2741.7672.9634.9611.6586.5573.0
All purpose1170.0823.6674.5597.2554.7531.3515.7495.4482.5
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward707.10.8486
All purpose577.11.0397
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7472
Downwind "popa"0.8873
70% up, 30% down "Ilhabela"0.7844
30% up, 70% down "Ilhabela-inverso"0.8401
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Predominantly Upwind622.00.9646
Predominantly Downwind589.31.0182
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP601.40.9976 Predom. Rc High470.71.2748 5B SF Bay L/M782.40.7669 TriNum AP Low749.10.8010 Predom. Dn Low922.10.6507 5B SF Bay Med665.60.9014 TriNum AP Med573.11.0470 Predom. Dn L/M670.90.8943 5B SF Bay M/H603.30.9945 TriNum AP High512.01.1719 Predom. Dn Med566.81.0585 5B SF Bay High578.21.0377 TriNum W/L Low1012.30.5927 Predom. Dn M/H505.01.1881 5B AP Low835.90.7178 TriNum W/L Med701.80.8550 Predom. Dn High471.31.2730 5B AP L/M651.50.9209 TriNum W/L Hig608.00.9868 ChiMac Up Low791.50.7581 5B AP Med564.61.0627 Predom. Upwind648.90.9247 ChiMac Up Med711.30.8435 5B AP M/H518.21.1579 Predom. Reaching578.11.0379 ChiMac Up High619.60.9683 5B AP High496.71.2080 Predom. Downwind618.10.9708 ChiMac Off Low787.00.7624 5B W/L Low1139.50.5266 Predom. Up Low905.30.6628 ChiMac Off Med690.80.8685 5B W/L L/M821.20.7307 Predom. Up L/M684.40.8767 ChiMac Off High578.11.0378 5B W/L Med688.40.8716 Predom. Up Med600.70.9989 ChiMac AP Low785.20.7642 5B W/L M/H616.40.9733 Predom. Up M/H560.91.0697 ChiMac AP Med698.30.8593 5B W/L High588.51.0195 Predom. Up High546.01.0990 ChiMac AP High597.21.0047 W/L 60-40 Low1140.70.5260 Predom. Rc Low811.30.7396 BayMac Cove Island906.00.6623 W/L 60-40 L/M828.70.7240 Predom. Rc L/M614.10.9771 BayMac Shore897.90.6682 W/L 60-40 Med701.20.8557 Predom. Rc Med537.51.1162 Harvest Moon510.01.1765 W/L 60-40 M/H635.30.9444 Predom. Rc M/H494.71.2129 5B SF Bay Low955.90.6277 W/L 60-40 High611.80.9807      SA/DSPL Up21.06SA/DSPL Dn33.65
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance627.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating627.90.9555
FinRating, kevyt tuuli1123.40.8901
FinRating, kova tuuli500.01.0001
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9555
Triple Number Coastal/Long Distance Low0.8010
Triple Number Coastal/Long Distance Medium1.0471
Triple Number Coastal/Long Distance High1.1719
Triple Number Windward/Leeward Low0.6220
Triple Number Windward/Leeward Medium0.8550
Triple Number Windward/Leeward High0.9868
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
For information
General Purpose Handicap (GPH)649.2
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Saronikos S All Purpose658.40.9113
Saronikos S Upwind736.50.8146
Saronikos S Downwind568.51.0553
Saronikos N All Purpose692.40.8665
Saronikos N Upwind769.90.7794
Saronikos N Downwind622.70.9636
Saronikos SW All Purpose667.20.8993
Saronikos SW Upwind759.20.7903
Saronikos SW Downwind579.51.0354
Saronikos NE All Purpose721.80.8312
Saronikos NE Upwind722.90.8300
Saronikos NE Downwind704.70.8514
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose601.40.9976
5-Band All Purpose Low908.90.6601
5-Band All Purpose L/M675.50.8882
5-Band All Purpose Med582.71.0297
5-Band All Purpose M/H532.21.1274
5-Band All Purpose High508.11.1809
Single Number Predominant Upwind620.60.9668
Single Number Predominant Reaching554.81.0814
Single Number Predominant Downwind590.01.0169
5-Band 50-50 Windward/Leeward Low1139.50.5266
5-Band 50-50 Windward/Leeward L/M821.20.7307
5-Band 50-50 Windward/Leeward Med688.40.8716
5-Band 50-50 Windward/Leeward M/H616.40.9733
5-Band 50-50 Windward/Leeward High588.51.0195
5-Band 60-40 Windward/Leeward Low1140.70.5260
5-Band 60-40 Windward/Leeward L/M828.70.7240
5-Band 60-40 Windward/Leeward Med701.20.8557
5-Band 60-40 Windward/Leeward M/H635.30.9444
5-Band 60-40 Windward/Leeward High611.80.9807
Triple Number 50-50 Windward/Leeward Low1012.30.5927
Triple Number 50-50 Windward/Leeward Med701.90.8548
Triple Number 50-50 Windward/Leeward High608.00.9868
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward719.80.8335
Triple Number 60-40 Windward/Leeward Low1015.70.5907
Triple Number 60-40 Windward/Leeward Med713.90.8405
Triple Number 60-40 Windward/Leeward High628.00.9554
Triple Number All-Purpose Low814.80.7364
Triple Number All-Purpose Med591.81.0138
Triple Number All-Purpose High525.31.1422
Triple Number Predominant Upwind Low823.60.7285
Triple Number Predominant Upwind Med611.50.9812
Triple Number Predominant Upwind High561.31.0690
Triple Number Predominant Reaching Low735.80.8155
Triple Number Predominant Reaching Med553.41.0842
Triple Number Predominant Reaching High479.81.2507
Triple Number Predominant Downwind Low819.90.7318
Triple Number Predominant Downwind Med578.41.0374
Triple Number Predominant Downwind High486.71.2328
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low749.1
Triple Number Coastal/Long Distance Medium573.0
Triple Number Coastal/Long Distance High512.0
Triple Number Windward/Leeward Low964.6
Triple Number Windward/Leeward Medium701.8
Triple Number Windward/Leeward High608.0
Predominantly Upwind622.0
Predominantly Downwind589.3
Predominantly Reaching564.8
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8010
Triple Number Coastal/Long Distance Medium1.0471
Triple Number Coastal/Long Distance High1.1719
Triple Number Windward/Leeward Low0.6220
Triple Number Windward/Leeward Medium0.8550
Triple Number Windward/Leeward High0.9868
Coastal/Long Distance0.9555
Predominantly Upwind0.9646
Predominantly Downwind1.0182
For information
General Purpose Handicap (GPH)649.2
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0397
Distanseseilas Trippeltall svak vind0.8010
Distanseseilas Trippeltall mellomvind1.0471
Distanseseilas Trippeltall sterk vind1.1719
Pølsebane Trippeltall svak vind0.6220
Pølsebane Trippeltall mellomvind0.8550
Pølsebane Trippeltall sterk vind0.9868
Motvind Singeltall0.9646
Medvind Singeltall1.0182
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Coastal/Long Distance627.90.9555
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind622.00.9646
Predominantly Downwind589.31.0182
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore577.11.0397
Cape Doctor Coastal486.41.2336
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8010
Triple Number Coastal/Long Distance Medium1.0471
Triple Number Coastal/Long Distance High1.1719
Triple Number Windward/Leeward Low0.6220
Triple Number Windward/Leeward Medium0.8550
Triple Number Windward/Leeward High0.9868
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8010
Triple Number Coastal/Long Distance Medium1.0471
Triple Number Coastal/Long Distance High1.1719
Triple Number Windward/Leeward Low0.6220
Triple Number Windward/Leeward Medium0.8550
Triple Number Windward/Leeward High0.9868
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Predominantly Upwind622.00.9646
Predominantly Downwind589.31.0182
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance627.90.9555
Triple Number Coastal/Long Distance Low749.10.8010
Triple Number Coastal/Long Distance Medium573.01.0471
Triple Number Coastal/Long Distance High512.01.1719
Triple Number Windward/Leeward Low964.60.6220
Triple Number Windward/Leeward Medium701.80.8550
Triple Number Windward/Leeward High608.00.9868
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1559.91070.2808.0670.6591.1551.2521.5474.3460.6
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP601.40.9976 Predom. Dn High471.31.2730 5B AP M/H518.21.1579 TriNum AP Low749.10.8010 Predom. Rc Low811.30.7396 5B AP High496.71.2080 TriNum AP Med573.11.0470 Predom. Rc L/M614.10.9771 5B SF Bay Low955.90.6277 TriNum AP High512.01.1719 Predom. Rc Med537.51.1162 5B SF Bay L/M782.40.7669 TriNum W/L Low1012.30.5927 Predom. Rc M/H494.71.2129 5B SF Bay Med665.60.9014 TriNum W/L Med701.80.8550 Predom. Rc High470.71.2748 5B SF Bay M/H603.30.9945 TriNum W/L Hig608.00.9868 5B W/L Low1139.50.5266 5B SF Bay High578.21.0377 Predom. Upwind648.90.9247 5B W/L L/M821.20.7307 ChiMac Up Low791.50.7581 Predom. Reaching578.11.0379 5B W/L Med688.40.8716 ChiMac Up Med711.30.8435 Predom. Downwind618.10.9708 5B W/L M/H616.40.9733 ChiMac Up High619.60.9683 Predom. Up Low905.30.6628 5B W/L High588.51.0195 ChiMac Off Low787.00.7624 Predom. Up L/M684.40.8767 W/L 60-40 Low1140.70.5260 ChiMac Off Med690.80.8685 Predom. Up Med600.70.9989 W/L 60-40 L/M828.70.7240 ChiMac Off High578.11.0378 Predom. Up M/H560.91.0697 W/L 60-40 Med701.20.8557 ChiMac AP Low785.20.7642 Predom. Up High546.01.0990 W/L 60-40 M/H635.30.9444 ChiMac AP Med698.30.8593 Predom. Dn Low922.10.6507 W/L 60-40 High611.80.9807 ChiMac AP High597.21.0047 Predom. Dn L/M670.90.8943 5B AP Low835.90.7178 BayMac Cove Island906.00.6623 Predom. Dn Med566.81.0585 5B AP L/M651.50.9209 BayMac Shore897.90.6682 Predom. Dn M/H505.01.1881 5B AP Med564.61.0627 Harvest Moon510.01.1765      SA/DSPL Up21.06SA/DSPL Dn33.65
ORC Ref  03190004OLN Issued on 05/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
DUFFYITA-16134
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDufour 34Measurement22/02/2017HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.300Maximum beam3.482Draft1.953Displacement5,739Wetted area24.36IMS L9.556LSM09.437Accomod. length10.300Sink (kg/mm) 18.70
VCGD0.068VCGM0.070 RM Rated (kg·m) 120.1Limit of positive stability(°) 114.6 Stability Index 116.4 BLR index 0.0000Default crew weight634 Declared crew weight 550
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.415PBW0.125PIPA0.0036
EDL2.100ST10.065ST20.180
ST30.180ST40.110ST50.275
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P12.130IG13.145ISP13.190MDT10.121MDL10.179MDT20.119MDL20.140TL0.770MW0.177GO0.192
E4.590J3.705BAS1.665FSD0.036SFJ0.140SPL3.886WPLTPSBD0.134MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date04/05/2026MeasurerFIV-164
SFFP0.390FFM1.243FF1.242LCFcl5.700SG1.0260
SAFP9.636FAM1.044FA1.045LCFsh5.949HBI1.090
W183.7W283.7W383.7W483.7
PD1594.0PD2591.5PD3590.1PD4591.9
WD10.720PLM9000.00GSA1.0RSA1.0RM119.4
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGApvcWater15001.700.00BpvcWater15008.200.00CpvcFuel9058.200.00Total deductible48.200.00
OTHER ITEMSIdKindDescriptionWeightLCGVCGAMiscellaneousboiler305.200.00BMiscellaneouswindlass200.670.00ABattery3x80 Ah08.000.00AEngine (IC)Volvo Penta 30 hpTotal deductible0
ORC Ref  03190004OLN Issued on 05/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
DUFFYITA-16134
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentC0.150.921.722.923.8332.8504/04/2011D0.150.931.692.913.7932.6421/03/2014
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentD0.090.721.372.724.055.4312.87NoNo 35.0427/01/2014C0.090.701.342.684.065.4712.62NoNo 34.2704/04/2011
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentD12.9812.9812.987.056.7775.6522/02/2017B12.7912.7912.797.166.4074.6919/05/2009A12.8012.8012.806.866.4072.1919/05/2009C12.8012.8012.806.596.6270.3619/05/2009
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length10.3 mTable area0.44 m²Headroom1.72 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity86 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity56 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03190004OLN Issued on 05/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org