International Certificate2026
KALA NAG 2ITA-17926
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 Angles48.2°45.7°43.8°42.6°41.3°40.2°39.7°40.1°40.9°
Beat VMG2.223.244.014.605.065.395.535.655.59
52°3.555.076.146.917.437.767.968.108.10
60°3.895.426.477.197.667.978.188.358.39
75°4.135.666.707.417.868.178.418.748.87
90°3.995.536.767.618.138.448.638.969.32
110°3.975.696.977.828.338.739.119.7410.14
120°3.855.546.817.708.248.669.089.9210.73
135°3.374.936.217.217.898.368.779.6310.61
150°2.794.165.336.357.197.788.208.889.61
Run VMG2.423.604.625.506.226.767.197.908.48
Gybe Angles140.2°143.3°146.9°148.0°149.7°152.1°156.6°162.6°161.5°
APH ToD:541.5CDL: 10.353APH ToT: 1.1081CertNo:26/1
BOAT
ClassDufour 455 GLDesignerFelciBuilderDufour YachtsAge date04/2006Series date04/2005Offset fileDufour455GL.offData fileI17926
HULL
Length Overall13.422 mMaximum Beam4.294 mDraft1.942 mDisplacement10,795 kgDLR7.0080IMS DivisionCruiser/RacerDynamic Allowance0.360%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationStrutTypeFeathering 3 bladesDiameter0.460m
CREW
Maximum weight845 kg(default)Minimum weight715 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail40.7441.51Headsail Luffed53.9353.93Headsail Flying58.2158.22SymmetricAsymmetric128.03128.03 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail12.06Storm Jib11.98Heavy Weather Jib32.34
SAIL LIMITS
Headsails6Spinnakers5
STABILITY
Righting Moment 313.2 kg·m Stability Index 113.0
COMMENTS
HF
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  03190004MO4 Issued on 23/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
KALA NAG 2ITA-17926
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 VMG1624.31112.2897.9783.0710.9668.4650.6637.3643.5
52°1015.1710.2586.0521.3484.7463.6452.3444.4444.2
60°926.5663.7556.5500.4469.7451.5440.3431.3429.3
75°872.2636.3537.2485.7457.9440.6428.2412.0405.8
90°902.6650.8532.9472.9442.9426.3417.1401.9386.2
110°906.5633.1516.5460.5432.3412.5395.3369.6355.1
120°933.9650.1528.5467.8436.8415.6396.5363.0335.4
135°1068.0729.7579.8499.2456.2430.7410.7374.0339.3
150°1288.1866.4675.4567.3501.0462.5438.9405.2374.7
Run VMG1487.41000.5779.9655.1578.5532.6500.5455.6424.3
Selected Courses
Windward / Leeward1555.81056.3838.9719.0644.7600.5575.5546.4533.9
All purpose1167.5806.4650.2566.7518.1489.1471.2448.5435.4
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward678.90.8838
All purpose541.51.1081
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7692
Downwind "popa"0.9328
70% up, 30% down "Ilhabela"0.8119
30% up, 70% down "Ilhabela-inverso"0.8768
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Predominantly Upwind589.91.0172
Predominantly Downwind551.91.0871
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP565.01.0620 Predom. Rc High425.61.4097 5B SF Bay L/M761.50.7879 TriNum AP Low728.30.8238 Predom. Dn Low886.20.6770 5B SF Bay Med634.60.9454 TriNum AP Med538.11.1150 Predom. Dn L/M633.70.9468 5B SF Bay M/H561.81.0679 TriNum AP High467.21.2843 Predom. Dn Med528.21.1359 5B SF Bay High533.21.1253 TriNum W/L Low996.40.6021 Predom. Dn M/H466.91.2851 5B AP Low813.00.7380 TriNum W/L Med674.60.8894 Predom. Dn High434.41.3813 5B AP L/M624.30.9612 TriNum W/L Hig570.91.0510 ChiMac Up Low782.70.7666 5B AP Med528.41.1355 Predom. Upwind619.00.9693 ChiMac Up Med691.10.8682 5B AP M/H474.31.2649 Predom. Reaching540.31.1105 ChiMac Up High585.71.0244 5B AP High450.21.3328 Predom. Downwind580.21.0341 ChiMac Off Low750.10.7999 5B W/L Low1126.80.5325 Predom. Up Low910.00.6593 ChiMac Off Med653.60.9181 5B W/L L/M800.00.7500 Predom. Up L/M665.80.9012 ChiMac Off High541.01.1091 5B W/L Med660.10.9089 Predom. Up Med566.31.0595 ChiMac AP Low762.50.7869 5B W/L M/H580.61.0334 Predom. Up M/H513.41.1688 ChiMac AP Med669.50.8962 5B W/L High549.31.0923 Predom. Up High494.61.2130 ChiMac AP High561.51.0686 W/L 60-40 Low1138.80.5269 Predom. Rc Low793.80.7559 BayMac Cove Island886.00.6772 W/L 60-40 L/M812.30.7387 Predom. Rc L/M581.41.0319 BayMac Shore879.20.6825 W/L 60-40 Med673.40.8911 Predom. Rc Med495.91.2100 Harvest Moon468.71.2801 W/L 60-40 M/H595.81.0071 Predom. Rc M/H449.11.3360 5B SF Bay Low943.10.6362 W/L 60-40 High567.61.0571      SA/DSPL Up19.23SA/DSPL Dn34.28
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance593.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating593.11.0116
FinRating, kevyt tuuli1109.10.9016
FinRating, kova tuuli453.21.1033
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0116
Triple Number Coastal/Long Distance Low0.8238
Triple Number Coastal/Long Distance Medium1.1152
Triple Number Coastal/Long Distance High1.2843
Triple Number Windward/Leeward Low0.6332
Triple Number Windward/Leeward Medium0.8894
Triple Number Windward/Leeward High1.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
For information
General Purpose Handicap (GPH)614.4
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Saronikos S All Purpose638.60.9395
Saronikos S Upwind724.50.8281
Saronikos S Downwind533.71.1242
Saronikos N All Purpose662.50.9056
Saronikos N Upwind757.10.7925
Saronikos N Downwind578.61.0370
Saronikos SW All Purpose646.20.9285
Saronikos SW Upwind753.70.7961
Saronikos SW Downwind535.91.1196
Saronikos NE All Purpose690.30.8692
Saronikos NE Upwind708.20.8472
Saronikos NE Downwind655.90.9148
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose565.01.0620
5-Band All Purpose Low894.00.6711
5-Band All Purpose L/M647.50.9266
5-Band All Purpose Med545.81.0992
5-Band All Purpose M/H489.41.2261
5-Band All Purpose High464.11.2928
Single Number Predominant Upwind589.21.0184
Single Number Predominant Reaching515.51.1638
Single Number Predominant Downwind552.01.0870
5-Band 50-50 Windward/Leeward Low1126.80.5325
5-Band 50-50 Windward/Leeward L/M800.00.7500
5-Band 50-50 Windward/Leeward Med660.10.9089
5-Band 50-50 Windward/Leeward M/H580.61.0334
5-Band 50-50 Windward/Leeward High549.31.0923
5-Band 60-40 Windward/Leeward Low1138.80.5269
5-Band 60-40 Windward/Leeward L/M812.30.7387
5-Band 60-40 Windward/Leeward Med673.40.8911
5-Band 60-40 Windward/Leeward M/H595.81.0071
5-Band 60-40 Windward/Leeward High567.61.0571
Triple Number 50-50 Windward/Leeward Low996.40.6021
Triple Number 50-50 Windward/Leeward Med674.70.8893
Triple Number 50-50 Windward/Leeward High570.91.0510
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward692.30.8667
Triple Number 60-40 Windward/Leeward Low1008.20.5951
Triple Number 60-40 Windward/Leeward Med687.80.8724
Triple Number 60-40 Windward/Leeward High586.71.0227
Triple Number All-Purpose Low795.20.7545
Triple Number All-Purpose Med556.11.0790
Triple Number All-Purpose High481.91.2450
Triple Number Predominant Upwind Low818.50.7331
Triple Number Predominant Upwind Med579.71.0350
Triple Number Predominant Upwind High511.01.1743
Triple Number Predominant Reaching Low713.50.8409
Triple Number Predominant Reaching Med513.81.1678
Triple Number Predominant Reaching High433.41.3843
Triple Number Predominant Downwind Low784.80.7645
Triple Number Predominant Downwind Med539.51.1122
Triple Number Predominant Downwind High450.11.3330
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low728.3
Triple Number Coastal/Long Distance Medium538.0
Triple Number Coastal/Long Distance High467.2
Triple Number Windward/Leeward Low947.6
Triple Number Windward/Leeward Medium674.6
Triple Number Windward/Leeward High570.9
Predominantly Upwind589.9
Predominantly Downwind551.9
Predominantly Reaching525.5
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8238
Triple Number Coastal/Long Distance Medium1.1152
Triple Number Coastal/Long Distance High1.2843
Triple Number Windward/Leeward Low0.6332
Triple Number Windward/Leeward Medium0.8894
Triple Number Windward/Leeward High1.0510
Coastal/Long Distance1.0116
Predominantly Upwind1.0172
Predominantly Downwind1.0871
For information
General Purpose Handicap (GPH)614.4
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.1081
Distanseseilas Trippeltall svak vind0.8238
Distanseseilas Trippeltall mellomvind1.1152
Distanseseilas Trippeltall sterk vind1.2843
Pølsebane Trippeltall svak vind0.6332
Pølsebane Trippeltall mellomvind0.8894
Pølsebane Trippeltall sterk vind1.0510
Motvind Singeltall1.0172
Medvind Singeltall1.0871
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Coastal/Long Distance593.11.0116
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind589.91.0172
Predominantly Downwind551.91.0871
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore537.71.1159
Cape Doctor Coastal439.31.3657
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8238
Triple Number Coastal/Long Distance Medium1.1152
Triple Number Coastal/Long Distance High1.2843
Triple Number Windward/Leeward Low0.6332
Triple Number Windward/Leeward Medium0.8894
Triple Number Windward/Leeward High1.0510
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8238
Triple Number Coastal/Long Distance Medium1.1152
Triple Number Coastal/Long Distance High1.2843
Triple Number Windward/Leeward Low0.6332
Triple Number Windward/Leeward Medium0.8894
Triple Number Windward/Leeward High1.0510
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Predominantly Upwind589.91.0172
Predominantly Downwind551.91.0871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance593.11.0116
Triple Number Coastal/Long Distance Low728.30.8238
Triple Number Coastal/Long Distance Medium538.01.1152
Triple Number Coastal/Long Distance High467.21.2843
Triple Number Windward/Leeward Low947.60.6332
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High570.91.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1549.01050.7785.8643.2555.5508.1475.9428.8412.7
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP565.01.0620 Predom. Dn High434.41.3813 5B AP M/H474.31.2649 TriNum AP Low728.30.8238 Predom. Rc Low793.80.7559 5B AP High450.21.3328 TriNum AP Med538.11.1150 Predom. Rc L/M581.41.0319 5B SF Bay Low943.10.6362 TriNum AP High467.21.2843 Predom. Rc Med495.91.2100 5B SF Bay L/M761.50.7879 TriNum W/L Low996.40.6021 Predom. Rc M/H449.11.3360 5B SF Bay Med634.60.9454 TriNum W/L Med674.60.8894 Predom. Rc High425.61.4097 5B SF Bay M/H561.81.0679 TriNum W/L Hig570.91.0510 5B W/L Low1126.80.5325 5B SF Bay High533.21.1253 Predom. Upwind619.00.9693 5B W/L L/M800.00.7500 ChiMac Up Low782.70.7666 Predom. Reaching540.31.1105 5B W/L Med660.10.9089 ChiMac Up Med691.10.8682 Predom. Downwind580.21.0341 5B W/L M/H580.61.0334 ChiMac Up High585.71.0244 Predom. Up Low910.00.6593 5B W/L High549.31.0923 ChiMac Off Low750.10.7999 Predom. Up L/M665.80.9012 W/L 60-40 Low1138.80.5269 ChiMac Off Med653.60.9181 Predom. Up Med566.31.0595 W/L 60-40 L/M812.30.7387 ChiMac Off High541.01.1091 Predom. Up M/H513.41.1688 W/L 60-40 Med673.40.8911 ChiMac AP Low762.50.7869 Predom. Up High494.61.2130 W/L 60-40 M/H595.81.0071 ChiMac AP Med669.50.8962 Predom. Dn Low886.20.6770 W/L 60-40 High567.61.0571 ChiMac AP High561.51.0686 Predom. Dn L/M633.70.9468 5B AP Low813.00.7380 BayMac Cove Island886.00.6772 Predom. Dn Med528.21.1359 5B AP L/M624.30.9612 BayMac Shore879.20.6825 Predom. Dn M/H466.91.2851 5B AP Med528.41.1355 Harvest Moon468.71.2801      SA/DSPL Up19.23SA/DSPL Dn34.28
ORC Ref  03190004MO4 Issued on 23/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
KALA NAG 2ITA-17926
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 455 GLMeasurement15/10/2024HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall13.422Maximum beam4.294Draft1.942Displacement10,795Wetted area38.64IMS L11.882LSM011.548Accomod. length13.422Sink (kg/mm) 30.30
VCGD0.059VCGM0.201 RM Rated (kg·m) 313.2Limit of positive stability(°) 108.5 Stability Index 113.0 BLR index 0.0000Default crew weight845 Declared crew weight
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFeathering 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.460PBW0.160PIPA0.0041
EDL3.000ST10.065ST20.180
ST30.180ST40.110ST50.270
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P14.150IG15.350ISP16.450MDT10.125MDL10.250MDT20.125MDL20.250TLMW0.250GO0.300
E4.870J6.080BAS1.750FSD0.040SFJ-0.630SPLWPLTPS6.450BD0.190MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date31/01/2024MeasurerFIV-124
SFFP0.890FFM1.516FF1.513LCFcl7.252SG1.0260
SAFP12.670FAM1.239FA1.244LCFsh7.558HBI1.326
W1142.5W2142.5W3142.5W4142.5LCFD7.450
PD1170.8PD2170.6PD3171.9PD4171.8
WD4.755PLM9000.00GSA1.0RSA1.0RM311.5
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGCFuel2305010.75BpvcWater25003.25ApvcWater250010.75Total deductible4210.75
OTHER ITEMSIdKindDescriptionWeightLCGVCGDMiscellaneouswindlassCMiscellaneousbow thrusterFMiscellaneousboilerBBattery4 x 150 Ah10.75ABattery60 Ah10.75EEngine (IC)Volvo 55 hpTotal deductible
ORC Ref  03190004MO4 Issued on 23/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
KALA NAG 2ITA-17926
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.161.021.833.094.0740.7411/04/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentB0.120.911.823.775.727.7915.25NoYes058.2115/01/2024J1A0.060.891.763.585.527.5114.70NoNo 53.9311/04/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA18.1516.0017.088.769.9588%128.0311/04/2023C15.9514.8515.407.707.8099%99.0715/01/2024
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length13.4 mTable area0.66 m²Headroom1.87 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity222 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity118 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03190004MO4 Issued on 23/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org