Double HandedInternational Certificate2026
CHILAVISTAITA-16204
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 Angles45.7°42.9°40.8°39.6°39.1°39.1°39.3°40.4°43.0°
Beat VMG2.533.534.194.524.644.714.734.684.42
52°3.975.366.196.566.696.776.826.836.72
60°4.285.636.426.786.926.997.057.097.03
75°4.515.846.606.987.217.347.437.567.59
90°4.435.886.717.127.367.607.808.028.19
110°4.285.886.817.317.667.988.328.869.15
120°4.165.786.767.307.788.228.539.4310.33
135°3.695.216.357.027.528.048.6510.2411.65
150°3.054.405.516.417.007.437.889.0311.45
Run VMG2.643.814.775.556.116.516.887.829.92
Gybe Angles139.6°143.3°147.8°150.3°153.9°158.2°158.8°145.3°143.5°
APH ToD:570.4CDL: 8.012APH ToT: 1.0518CertNo:26/1
BOAT
ClassBonin 31 mod.DesignerCossuttiBuilderBoninAge date03/2009Series date08/2006Offset fileBONIN31-ITA16204.offData fileI16204
HULL
Length Overall9.390 mMaximum Beam3.336 mDraft1.987 mDisplacement3,396 kgDLR5.5298IMS DivisionCruiser/RacerDynamic Allowance0.190%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.350m
CREW
Maximum weight160 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail28.3428.92Headsail Luffed23.6223.62Headsail Flying30.9232.01SymmetricAsymmetric90.6790.67 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail8.24Storm Jib7.84Heavy Weather Jib21.17
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 82.4 kg·m Stability Index 123.2
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  03190004KSW Issued on 10/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedInternational Certificate2026
CHILAVISTAITA-16204
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 VMG1424.61020.6858.3797.0775.4764.7761.0770.0814.8
52°907.0671.9581.5548.8538.4531.7528.0527.1535.8
60°842.1638.9560.7531.3520.5514.7510.3507.5512.2
75°797.4615.9545.8516.0499.3490.2484.6475.9474.4
90°812.6611.9536.6505.9489.3473.9461.8448.7439.4
110°840.5612.4528.3492.2470.2451.0432.6406.1393.2
120°866.4623.2532.7493.1462.6438.2421.9381.8348.4
135°976.1691.0566.9512.8478.5447.5416.4351.4309.0
150°1179.5818.4653.1561.6514.1484.3457.1398.6314.4
Run VMG1362.0945.0754.2648.3589.4552.9523.2460.3363.0
Selected Courses
Windward / Leeward1393.3982.8806.2722.6682.4658.8642.1615.2588.9
All purpose1053.2758.5637.5583.6556.6538.1523.9500.6484.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward705.70.8502
All purpose570.41.0518
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7308
Downwind "popa"0.9389
70% up, 30% down "Ilhabela"0.7829
30% up, 70% down "Ilhabela-inverso"0.8650
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Predominantly Upwind623.10.9629
Predominantly Downwind566.41.0593
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP592.31.0131 Predom. Rc High463.91.2934 5B SF Bay L/M749.40.8007 TriNum AP Low698.00.8596 Predom. Dn Low830.00.7229 5B SF Bay Med668.40.8976 TriNum AP Med567.81.0567 Predom. Dn L/M629.40.9532 5B SF Bay M/H624.20.9612 TriNum AP High518.71.1567 Predom. Dn Med551.91.0872 5B SF Bay High598.91.0019 TriNum W/L Low936.00.6410 Predom. Dn M/H497.81.2053 5B AP Low765.60.7837 TriNum W/L Med700.20.8569 Predom. Dn High453.91.3220 5B AP L/M624.40.9609 TriNum W/L Hig636.20.9431 ChiMac Up Low755.90.7938 5B AP Med562.01.0677 Predom. Upwind646.80.9276 ChiMac Up Med695.10.8631 5B AP M/H525.11.1426 Predom. Reaching559.01.0733 ChiMac Up High624.20.9612 5B AP High501.91.1954 Predom. Downwind588.41.0197 ChiMac Off Low724.30.8284 5B W/L Low1041.30.5762 Predom. Up Low843.70.7111 ChiMac Off Med648.10.9257 5B W/L L/M784.50.7648 Predom. Up L/M665.60.9015 ChiMac Off High554.81.0814 5B W/L Med692.00.8670 Predom. Up Med609.30.9847 ChiMac AP Low736.70.8145 5B W/L M/H643.80.9320 Predom. Up M/H581.81.0313 ChiMac AP Med669.30.8965 5B W/L High615.30.9752 Predom. Up High571.01.0508 ChiMac AP High588.11.0202 W/L 60-40 Low1049.20.5718 Predom. Rc Low743.30.8073 BayMac Cove Island843.10.7117 W/L 60-40 L/M797.20.7526 Predom. Rc L/M585.61.0246 BayMac Shore836.70.7171 W/L 60-40 Med710.20.8449 Predom. Rc Med529.51.1331 Harvest Moon496.21.2092 W/L 60-40 M/H667.90.8983 Predom. Rc M/H491.01.2219 5B SF Bay Low883.70.6790 W/L 60-40 High647.50.9267      SA/DSPL Up22.91SA/DSPL Dn52.46
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance619.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating619.30.9689
FinRating, kevyt tuuli1022.50.9780
FinRating, kova tuuli503.20.9936
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9689
Triple Number Coastal/Long Distance Low0.8596
Triple Number Coastal/Long Distance Medium1.0568
Triple Number Coastal/Long Distance High1.1567
Triple Number Windward/Leeward Low0.6708
Triple Number Windward/Leeward Medium0.8569
Triple Number Windward/Leeward High0.9431
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
For information
General Purpose Handicap (GPH)632.3
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Saronikos S All Purpose642.80.9334
Saronikos S Upwind728.90.8231
Saronikos S Downwind530.11.1319
Saronikos N All Purpose677.50.8857
Saronikos N Upwind759.40.7901
Saronikos N Downwind577.11.0397
Saronikos SW All Purpose637.00.9420
Saronikos SW Upwind736.70.8144
Saronikos SW Downwind533.11.1255
Saronikos NE All Purpose691.20.8681
Saronikos NE Upwind708.30.8470
Saronikos NE Downwind640.00.9375
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose592.31.0131
5-Band All Purpose Low833.00.7203
5-Band All Purpose L/M645.80.9291
5-Band All Purpose Med579.61.0352
5-Band All Purpose M/H539.41.1124
5-Band All Purpose High512.81.1700
Single Number Predominant Upwind621.80.9650
Single Number Predominant Reaching540.51.1100
Single Number Predominant Downwind567.61.0570
5-Band 50-50 Windward/Leeward Low1041.30.5762
5-Band 50-50 Windward/Leeward L/M784.50.7648
5-Band 50-50 Windward/Leeward Med692.00.8670
5-Band 50-50 Windward/Leeward M/H643.80.9320
5-Band 50-50 Windward/Leeward High615.30.9752
5-Band 60-40 Windward/Leeward Low1049.20.5718
5-Band 60-40 Windward/Leeward L/M797.20.7526
5-Band 60-40 Windward/Leeward Med710.20.8449
5-Band 60-40 Windward/Leeward M/H667.90.8983
5-Band 60-40 Windward/Leeward High647.50.9267
Triple Number 50-50 Windward/Leeward Low936.00.6410
Triple Number 50-50 Windward/Leeward Med700.30.8568
Triple Number 50-50 Windward/Leeward High636.20.9431
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward723.90.8289
Triple Number 60-40 Windward/Leeward Low945.20.6348
Triple Number 60-40 Windward/Leeward Med717.60.8361
Triple Number 60-40 Windward/Leeward High662.00.9063
Triple Number All-Purpose Low755.40.7943
Triple Number All-Purpose Med585.81.0243
Triple Number All-Purpose High532.11.1275
Triple Number Predominant Upwind Low774.90.7743
Triple Number Predominant Upwind Med615.90.9742
Triple Number Predominant Upwind High586.61.0229
Triple Number Predominant Reaching Low682.20.8795
Triple Number Predominant Reaching Med544.81.1012
Triple Number Predominant Reaching High473.41.2675
Triple Number Predominant Downwind Low747.50.8027
Triple Number Predominant Downwind Med559.21.0729
Triple Number Predominant Downwind High473.71.2667
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low698.0
Triple Number Coastal/Long Distance Medium567.8
Triple Number Coastal/Long Distance High518.7
Triple Number Windward/Leeward Low894.5
Triple Number Windward/Leeward Medium700.2
Triple Number Windward/Leeward High636.2
Predominantly Upwind623.1
Predominantly Downwind566.4
Predominantly Reaching546.0
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8596
Triple Number Coastal/Long Distance Medium1.0568
Triple Number Coastal/Long Distance High1.1567
Triple Number Windward/Leeward Low0.6708
Triple Number Windward/Leeward Medium0.8569
Triple Number Windward/Leeward High0.9431
Coastal/Long Distance0.9689
Predominantly Upwind0.9629
Predominantly Downwind1.0593
For information
General Purpose Handicap (GPH)632.3
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0518
Distanseseilas Trippeltall svak vind0.8596
Distanseseilas Trippeltall mellomvind1.0568
Distanseseilas Trippeltall sterk vind1.1567
Pølsebane Trippeltall svak vind0.6708
Pølsebane Trippeltall mellomvind0.8569
Pølsebane Trippeltall sterk vind0.9431
Motvind Singeltall0.9629
Medvind Singeltall1.0593
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Coastal/Long Distance619.30.9689
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind623.10.9629
Predominantly Downwind566.41.0593
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore596.81.0054
Cape Doctor Coastal489.51.2257
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8596
Triple Number Coastal/Long Distance Medium1.0568
Triple Number Coastal/Long Distance High1.1567
Triple Number Windward/Leeward Low0.6708
Triple Number Windward/Leeward Medium0.8569
Triple Number Windward/Leeward High0.9431
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8596
Triple Number Coastal/Long Distance Medium1.0568
Triple Number Coastal/Long Distance High1.1567
Triple Number Windward/Leeward Low0.6708
Triple Number Windward/Leeward Medium0.8569
Triple Number Windward/Leeward High0.9431
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Predominantly Upwind623.10.9629
Predominantly Downwind566.41.0593
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.30.9689
Triple Number Coastal/Long Distance Low698.00.8596
Triple Number Coastal/Long Distance Medium567.81.0568
Triple Number Coastal/Long Distance High518.71.1567
Triple Number Windward/Leeward Low894.50.6708
Triple Number Windward/Leeward Medium700.20.8569
Triple Number Windward/Leeward High636.20.9431
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1390.2979.0759.2653.8594.5558.9528.8475.0452.2
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP592.31.0131 Predom. Dn High453.91.3220 5B AP M/H525.11.1426 TriNum AP Low698.00.8596 Predom. Rc Low743.30.8073 5B AP High501.91.1954 TriNum AP Med567.81.0567 Predom. Rc L/M585.61.0246 5B SF Bay Low883.70.6790 TriNum AP High518.71.1567 Predom. Rc Med529.51.1331 5B SF Bay L/M749.40.8007 TriNum W/L Low936.00.6410 Predom. Rc M/H491.01.2219 5B SF Bay Med668.40.8976 TriNum W/L Med700.20.8569 Predom. Rc High463.91.2934 5B SF Bay M/H624.20.9612 TriNum W/L Hig636.20.9431 5B W/L Low1041.30.5762 5B SF Bay High598.91.0019 Predom. Upwind646.80.9276 5B W/L L/M784.50.7648 ChiMac Up Low755.90.7938 Predom. Reaching559.01.0733 5B W/L Med692.00.8670 ChiMac Up Med695.10.8631 Predom. Downwind588.41.0197 5B W/L M/H643.80.9320 ChiMac Up High624.20.9612 Predom. Up Low843.70.7111 5B W/L High615.30.9752 ChiMac Off Low724.30.8284 Predom. Up L/M665.60.9015 W/L 60-40 Low1049.20.5718 ChiMac Off Med648.10.9257 Predom. Up Med609.30.9847 W/L 60-40 L/M797.20.7526 ChiMac Off High554.81.0814 Predom. Up M/H581.81.0313 W/L 60-40 Med710.20.8449 ChiMac AP Low736.70.8145 Predom. Up High571.01.0508 W/L 60-40 M/H667.90.8983 ChiMac AP Med669.30.8965 Predom. Dn Low830.00.7229 W/L 60-40 High647.50.9267 ChiMac AP High588.11.0202 Predom. Dn L/M629.40.9532 5B AP Low765.60.7837 BayMac Cove Island843.10.7117 Predom. Dn Med551.91.0872 5B AP L/M624.40.9609 BayMac Shore836.70.7171 Predom. Dn M/H497.81.2053 5B AP Med562.01.0677 Harvest Moon496.21.2092      SA/DSPL Up22.91SA/DSPL Dn52.46
ORC Ref  03190004KSW Issued on 10/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedInternational Certificate2026
CHILAVISTAITA-16204
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 31 mod.Measurement12/10/2024HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.390Maximum beam3.336Draft1.987Displacement3,396Wetted area18.85IMS L8.607LSM08.499Accomod. length9.390Sink (kg/mm) 15.12
VCGD-0.088VCGM-0.048 RM Rated (kg·m) 82.4Limit of positive stability(°) 127.9 Stability Index 123.2 BLR index 0.0000Default crew weight170 Declared crew weight 160
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.350PBW0.103PIPA0.0026
EDL1.127ST10.042ST20.135
ST30.135ST40.088ST50.300
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P11.760IG12.380ISP13.470MDT10.100MDL10.145MDT20.072MDL20.105TL0.700MW0.145GO0.185
E4.000J3.530BAS1.610FSD0.040SFJ0.200SPLWPLTPS4.690BD0.120MWT71.60MCG4.230
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date26/03/2025Measurer124CommentERRATA CORRIGE
SFFP0.367FFM1.286FF1.293LCFcl5.312SG1.0000
SAFP9.250FAM1.036FA1.043LCFsh5.554HBI1.174
W171.1W271.1W371.1W471.1LCFD4.930
PD1258.0PD2260.3PD3259.4PD4263.4
WD3.760PLM9000.00GSA1.0RSA1.0RM80.9
INVENTORY
BALLASTIdKindDescriptionWeightLCGVCGTCGAFixed6 lead blocks804.95Fixed Ballast Total80
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGBWater15005.50AFuel38206.20Total deductible176.20
OTHER ITEMSIdKindDescriptionWeightLCGVCGAMiscellaneousautopilotBBattery150 Ah4.25ABattery74 Ah4.25DEngine (IC)Lombardini 18 hpTotal deductible
ORC Ref  03190004KSW Issued on 10/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedInternational Certificate2026
CHILAVISTAITA-16204
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentB0.200.911.582.583.3728.3407/05/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentC4.5013.50NoYes030.9204/02/2022SSE0.070.571.071.972.833.6212.32YesNo 23.6204/02/2022J2B0.100.571.031.882.793.7212.30YesNo 23.3608/04/2025J-2D0.052.848.90YesNo 12.8417/07/2025J4
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentC14.8512.8013.837.897.79101%90.6709/04/2024A14.5012.3513.436.507.3888%74.6903/05/2021B13.6012.4213.015.116.8075%59.0703/05/2021C0
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  03190004KSW Issued on 10/04/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org