International Certificate2026
SOUND OF SILENCEITA-17127
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 Angles46.1°43.5°41.5°40.5°40.1°39.8°39.8°40.1°41.7°
Beat VMG2.523.584.354.784.965.055.115.134.99
52°3.985.496.507.037.247.347.427.487.43
60°4.315.816.797.297.527.637.697.787.76
75°4.566.057.007.517.828.048.178.338.41
90°4.455.966.977.557.948.288.578.959.17
110°4.316.057.227.858.288.598.889.399.94
120°4.185.937.157.828.398.929.3110.0210.71
135°3.685.286.607.478.068.679.3210.9612.44
150°3.044.435.626.657.437.948.469.7111.79
Run VMG2.633.844.875.766.456.927.348.4110.21
Gybe Angles138.8°142.4°146.1°148.5°151.9°154.6°153.0°145.8°144.1°
APH ToD:536.0CDL: 9.387APH ToT: 1.1195CertNo:26/1
BOAT
ClassBonin 358DesignerCossuttiBuilderBoninAge date05/2015Series date01/2012Offset fileBONIN358-ITA17127.offData fileI17127
HULL
Length Overall10.860 mMaximum Beam3.540 mDraft2.105 mDisplacement4,867 kgDLR4.5370IMS DivisionCruiser/RacerDynamic Allowance0.190%Age Allowance0.455%RS Assessment-0.178%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.410m
CREW
Maximum weight400 kg(declared)Minimum weight270 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail37.2837.89Headsail Luffed32.1232.12Headsail Flying26.8038.85SymmetricAsymmetric110.14110.14 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail11.60Storm Jib9.41Heavy Weather Jib25.40
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 96.5 kg·m Stability Index 127.1
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  03190004L8U Issued on 14/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
SOUND OF SILENCEITA-17127
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 VMG1430.71004.5828.5753.4726.5712.9704.4701.3721.5
52°905.2655.5553.9512.1496.9490.4485.3481.0484.4
60°835.8619.8530.4493.9478.6471.8468.0462.5463.7
75°789.3594.9514.0479.2460.4447.9440.9432.2427.9
90°809.7603.8516.4476.9453.5435.0420.2402.2392.8
110°834.3594.6498.5458.9434.8418.9405.4383.4362.0
120°861.4606.8503.6460.1429.2403.6386.9359.5336.2
135°977.3681.3545.9481.8446.7415.3386.3328.6289.5
150°1183.4811.9640.8541.0484.3453.3425.7370.9305.3
Run VMG1366.5937.5740.0624.7557.7520.4490.6428.2352.5
Selected Courses
Windward / Leeward1398.6971.0784.2689.1642.1616.7597.5564.7537.0
All purpose1053.3745.3613.5550.9519.3499.7484.4459.7441.7
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward668.70.8972
All purpose536.01.1195
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7733
Downwind "popa"0.9769
70% up, 30% down "Ilhabela"0.8249
30% up, 70% down "Ilhabela-inverso"0.9054
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Predominantly Upwind586.21.0235
Predominantly Downwind536.21.1190
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP557.61.0761 Predom. Rc High423.61.4163 5B SF Bay L/M721.30.8319 TriNum AP Low679.40.8831 Predom. Dn Low820.30.7314 5B SF Bay Med629.90.9525 TriNum AP Med532.91.1260 Predom. Dn L/M605.20.9915 5B SF Bay M/H579.81.0348 TriNum AP High479.01.2526 Predom. Dn Med518.81.1565 5B SF Bay High550.01.0908 TriNum W/L Low920.20.6520 Predom. Dn M/H461.91.2990 5B AP Low752.20.7977 TriNum W/L Med663.20.9047 Predom. Dn High419.21.4315 5B AP L/M597.01.0051 TriNum W/L Hig590.01.0169 ChiMac Up Low732.50.8191 5B AP Med526.21.1403 Predom. Upwind610.70.9825 ChiMac Up Med664.20.9034 5B AP M/H485.81.2351 Predom. Reaching527.71.1369 ChiMac Up High584.71.0261 5B AP High460.91.3019 Predom. Downwind559.51.0725 ChiMac Off Low705.60.8503 5B W/L Low1031.20.5819 Predom. Up Low830.90.7221 ChiMac Off Med623.20.9628 5B W/L L/M757.20.7924 Predom. Up L/M635.80.9437 ChiMac Off High524.11.1448 5B W/L Med653.70.9178 Predom. Up Med569.81.0530 ChiMac AP Low715.80.8382 5B W/L M/H599.01.0017 Predom. Up M/H536.81.1177 ChiMac AP Med641.40.9355 5B W/L High565.61.0608 Predom. Up High520.81.1520 ChiMac AP High553.01.0850 W/L 60-40 Low1038.40.5778 Predom. Rc Low732.30.8193 BayMac Cove Island825.20.7271 W/L 60-40 L/M768.30.7809 Predom. Rc L/M559.71.0721 BayMac Shore818.80.7328 W/L 60-40 Med670.00.8955 Predom. Rc Med494.61.2130 Harvest Moon461.81.2994 W/L 60-40 M/H620.60.9668 Predom. Rc M/H452.21.3269 5B SF Bay Low868.30.6910 W/L 60-40 High593.61.0108      SA/DSPL Up24.04SA/DSPL Dn51.06
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance584.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating584.11.0273
FinRating, kevyt tuuli1013.80.9864
FinRating, kova tuuli462.31.0815
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0273
Triple Number Coastal/Long Distance Low0.8831
Triple Number Coastal/Long Distance Medium1.1261
Triple Number Coastal/Long Distance High1.2526
Triple Number Windward/Leeward Low0.6837
Triple Number Windward/Leeward Medium0.9047
Triple Number Windward/Leeward High1.0169
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
For information
General Purpose Handicap (GPH)599.6
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Saronikos S All Purpose611.50.9812
Saronikos S Upwind695.60.8626
Saronikos S Downwind505.01.1880
Saronikos N All Purpose644.00.9317
Saronikos N Upwind726.90.8254
Saronikos N Downwind552.51.0860
Saronikos SW All Purpose609.90.9838
Saronikos SW Upwind709.50.8457
Saronikos SW Downwind508.51.1799
Saronikos NE All Purpose663.20.9047
Saronikos NE Upwind678.80.8839
Saronikos NE Downwind620.30.9673
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose557.61.0761
5-Band All Purpose Low821.90.7300
5-Band All Purpose L/M618.90.9694
5-Band All Purpose Med543.31.1043
5-Band All Purpose M/H498.71.2032
5-Band All Purpose High469.81.2771
Single Number Predominant Upwind584.91.0259
Single Number Predominant Reaching508.11.1808
Single Number Predominant Downwind537.21.1168
5-Band 50-50 Windward/Leeward Low1031.20.5819
5-Band 50-50 Windward/Leeward L/M757.20.7924
5-Band 50-50 Windward/Leeward Med653.70.9178
5-Band 50-50 Windward/Leeward M/H599.01.0017
5-Band 50-50 Windward/Leeward High565.61.0608
5-Band 60-40 Windward/Leeward Low1038.40.5778
5-Band 60-40 Windward/Leeward L/M768.30.7809
5-Band 60-40 Windward/Leeward Med670.00.8955
5-Band 60-40 Windward/Leeward M/H620.60.9668
5-Band 60-40 Windward/Leeward High593.61.0108
Triple Number 50-50 Windward/Leeward Low920.20.6520
Triple Number 50-50 Windward/Leeward Med663.30.9045
Triple Number 50-50 Windward/Leeward High590.01.0169
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward684.90.8760
Triple Number 60-40 Windward/Leeward Low928.20.6464
Triple Number 60-40 Windward/Leeward Med678.80.8839
Triple Number 60-40 Windward/Leeward High613.10.9787
Triple Number All-Purpose Low739.10.8118
Triple Number All-Purpose Med550.51.0899
Triple Number All-Purpose High490.81.2225
Triple Number Predominant Upwind Low756.60.7930
Triple Number Predominant Upwind Med577.61.0387
Triple Number Predominant Upwind High539.31.1126
Triple Number Predominant Reaching Low666.20.9007
Triple Number Predominant Reaching Med510.61.1752
Triple Number Predominant Reaching High434.51.3810
Triple Number Predominant Downwind Low732.80.8188
Triple Number Predominant Downwind Med527.51.1373
Triple Number Predominant Downwind High439.21.3660
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low679.4
Triple Number Coastal/Long Distance Medium532.8
Triple Number Coastal/Long Distance High479.0
Triple Number Windward/Leeward Low877.6
Triple Number Windward/Leeward Medium663.2
Triple Number Windward/Leeward High590.0
Predominantly Upwind586.2
Predominantly Downwind536.2
Predominantly Reaching514.5
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8831
Triple Number Coastal/Long Distance Medium1.1261
Triple Number Coastal/Long Distance High1.2526
Triple Number Windward/Leeward Low0.6837
Triple Number Windward/Leeward Medium0.9047
Triple Number Windward/Leeward High1.0169
Coastal/Long Distance1.0273
Predominantly Upwind1.0235
Predominantly Downwind1.1190
For information
General Purpose Handicap (GPH)599.6
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.1195
Distanseseilas Trippeltall svak vind0.8831
Distanseseilas Trippeltall mellomvind1.1261
Distanseseilas Trippeltall sterk vind1.2526
Pølsebane Trippeltall svak vind0.6837
Pølsebane Trippeltall mellomvind0.9047
Pølsebane Trippeltall sterk vind1.0169
Motvind Singeltall1.0235
Medvind Singeltall1.1190
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Coastal/Long Distance584.11.0273
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind586.21.0235
Predominantly Downwind536.21.1190
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore545.31.1002
Cape Doctor Coastal447.11.3420
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8831
Triple Number Coastal/Long Distance Medium1.1261
Triple Number Coastal/Long Distance High1.2526
Triple Number Windward/Leeward Low0.6837
Triple Number Windward/Leeward Medium0.9047
Triple Number Windward/Leeward High1.0169
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8831
Triple Number Coastal/Long Distance Medium1.1261
Triple Number Coastal/Long Distance High1.2526
Triple Number Windward/Leeward Low0.6837
Triple Number Windward/Leeward Medium0.9047
Triple Number Windward/Leeward High1.0169
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Predominantly Upwind586.21.0235
Predominantly Downwind536.21.1190
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance584.11.0273
Triple Number Coastal/Long Distance Low679.40.8831
Triple Number Coastal/Long Distance Medium532.81.1261
Triple Number Coastal/Long Distance High479.01.2526
Triple Number Windward/Leeward Low877.60.6837
Triple Number Windward/Leeward Medium663.20.9047
Triple Number Windward/Leeward High590.01.0169
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1395.4967.6736.9620.8555.8518.9487.8436.0416.5
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP557.61.0761 Predom. Dn High419.21.4315 5B AP M/H485.81.2351 TriNum AP Low679.40.8831 Predom. Rc Low732.30.8193 5B AP High460.91.3019 TriNum AP Med532.91.1260 Predom. Rc L/M559.71.0721 5B SF Bay Low868.30.6910 TriNum AP High479.01.2526 Predom. Rc Med494.61.2130 5B SF Bay L/M721.30.8319 TriNum W/L Low920.20.6520 Predom. Rc M/H452.21.3269 5B SF Bay Med629.90.9525 TriNum W/L Med663.20.9047 Predom. Rc High423.61.4163 5B SF Bay M/H579.81.0348 TriNum W/L Hig590.01.0169 5B W/L Low1031.20.5819 5B SF Bay High550.01.0908 Predom. Upwind610.70.9825 5B W/L L/M757.20.7924 ChiMac Up Low732.50.8191 Predom. Reaching527.71.1369 5B W/L Med653.70.9178 ChiMac Up Med664.20.9034 Predom. Downwind559.51.0725 5B W/L M/H599.01.0017 ChiMac Up High584.71.0261 Predom. Up Low830.90.7221 5B W/L High565.61.0608 ChiMac Off Low705.60.8503 Predom. Up L/M635.80.9437 W/L 60-40 Low1038.40.5778 ChiMac Off Med623.20.9628 Predom. Up Med569.81.0530 W/L 60-40 L/M768.30.7809 ChiMac Off High524.11.1448 Predom. Up M/H536.81.1177 W/L 60-40 Med670.00.8955 ChiMac AP Low715.80.8382 Predom. Up High520.81.1520 W/L 60-40 M/H620.60.9668 ChiMac AP Med641.40.9355 Predom. Dn Low820.30.7314 W/L 60-40 High593.61.0108 ChiMac AP High553.01.0850 Predom. Dn L/M605.20.9915 5B AP Low752.20.7977 BayMac Cove Island825.20.7271 Predom. Dn Med518.81.1565 5B AP L/M597.01.0051 BayMac Shore818.80.7328 Predom. Dn M/H461.91.2990 5B AP Med526.21.1403 Harvest Moon461.81.2994      SA/DSPL Up24.04SA/DSPL Dn51.06
ORC Ref  03190004L8U Issued on 14/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
SOUND OF SILENCEITA-17127
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)
ClassBonin 358Measurement14/05/2024HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.860Maximum beam3.540Draft2.105Displacement4,867Wetted area24.94IMS L10.324LSM010.236Accomod. length10.860Sink (kg/mm) 18.11
VCGD-0.149VCGM-0.106 RM Rated (kg·m) 96.5Limit of positive stability(°) 127.8 Stability Index 127.1 BLR index 0.0000Default crew weight712 Declared crew weight 400
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.410PBW0.115PIPA0.0026
EDL1.436ST10.040ST20.132
ST30.132ST40.090ST50.265
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P13.120IG13.546ISP15.036MDT10.115MDL10.175MDT20.105MDL20.155TL0.700MW0.175GO0.225
E5.050J4.050BAS1.656FSD0.034SFJ0.320SPLWPLTPS5.100BD0.155MWT114.20MCG4.970
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date30/08/2020MeasurerFIV-162CommentCondizioni ottime
SFFP0.420FFM1.298FF1.298LCFcl5.985SG1.0250
SAFP10.750FAM1.039FA1.041LCFsh6.195HBI1.182
W158.8W258.8W358.8W458.8
PD1564.8PD2569.8PD3561.1PD4569.3
WD11.820PLM9000.00GSA1.0RSA1.0RM96.7
INVENTORY
BALLASTIdKindDescriptionWeightLCGVCGTCGAFixed8 lead blocks port-cl-stbd1085.90BFixed4 lead blocks port-stbd535.30Fixed Ballast Total161
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGApvc portWater8004.30Bpvc stbdWater8004.30CpvcFuel83207.10Total deductible177.10
OTHER ITEMSIdKindDescriptionWeightLCGVCGABattery50 Ah engine port276.95BBattery80 Ah services port326.80AEngine (IC)Lombardini 30 hpTotal deductible0
ORC Ref  03190004L8U Issued on 14/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
SOUND OF SILENCEITA-17127
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentD0.170.951.672.974.1037.2822/08/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentF0.120.741.372.453.464.4313.55YesNo 32.1217/06/2022G0.090.701.322.393.414.3913.69YesNo 31.8314/05/2024J2D0.000.000.000.000.004.1412.72NoYes026.8004/02/2018staysailC0.110.581.082.063.034.0413.02YesNo 26.7604/02/2018JHE3.6812.90NoNo 24.1619/05/2019Windseeker
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentD16.0714.5815.338.519.0894%110.1419/05/2019A1
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length10.9 mTable area0.55 m²Headroom1.76 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity123 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity68 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03190004L8U Issued on 14/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org