Club Certificate2026
BLACK INDIANITA-18085
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 Angles46.3°43.4°41.1°38.9°38.0°37.7°37.6°38.2°40.2°
Beat VMG2.453.474.204.714.965.055.105.094.95
52°3.855.296.206.706.957.067.127.167.12
60°4.145.576.416.857.127.277.357.437.40
75°4.365.756.556.987.297.547.727.907.98
90°4.255.646.577.057.317.637.938.398.66
110°4.085.666.677.217.658.038.318.829.21
120°3.945.496.537.127.608.098.609.4810.23
135°3.444.936.076.807.297.788.339.7912.10
150°2.864.185.326.256.887.337.798.9010.68
Run VMG2.483.624.615.456.136.687.127.959.25
Gybe Angles140.4°145.1°149.8°154.1°161.5°168.7°174.5°168.7°144.9°
APH ToD:563.3CDL: 8.540APH ToT: 1.0651CertNo:26/1
BOAT
ClassBonin 31DesignerCossuttiBuilderBoninAge date07/2016Series date08/2006Offset fileBONIN31.offData fileI18085
HULL
Length Overall9.390Maximum Beam3.336Draft1.925Displacement3,000DLR5.3426IMS DivisionCruiser/RacerDynamic Allowance0.010%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFeathering 2 bladesDiameter0.406m
CREW
Maximum weight560(declared)Minimum weight430 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail30.0330.80Headsail Luffed24.1324.13Headsail FlyingSymmetric69.8969.89Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail8.40Storm Jib7.84Heavy Weather Jib21.17
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting Moment 75.0 Stability Index 122.0
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  03190004B5K Issued on 11/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
BLACK INDIANITA-18085
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 VMG1467.41038.9856.3764.2725.9712.3706.2707.2727.4
52°934.2680.8581.0537.6518.3510.2505.9502.5505.9
60°869.1646.7561.4525.2505.8495.4490.0484.4486.3
75°825.9626.5549.2515.9493.6477.2466.5455.6451.0
90°848.0638.5548.1510.5492.2471.6453.8429.2415.7
110°881.6635.9539.4499.4470.8448.4433.1408.4390.7
120°913.7655.8551.1505.7473.8445.2418.7379.9352.1
135°1047.0730.7593.3529.3493.6462.7432.4367.8297.5
150°1258.0860.6676.6576.0523.5491.1462.3404.4337.1
Run VMG1452.6993.8781.3661.0587.1539.0505.9452.9389.3
Selected Courses
Windward / Leeward1460.01016.3818.8712.6656.5625.6606.1580.1558.3
All purpose1101.8784.2648.2581.3545.6523.2506.7481.4461.5
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward686.90.8735
All purpose563.31.0651
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7621
Downwind "popa"0.9290
70% up, 30% down "Ilhabela"0.8055
30% up, 70% down "Ilhabela-inverso"0.8717
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Predominantly Upwind609.90.9838
Predominantly Downwind570.41.0518
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP585.51.0248 Predom. Rc High450.11.3330 5B SF Bay L/M751.00.7989 TriNum AP Low716.20.8378 Predom. Dn Low868.70.6907 5B SF Bay Med649.00.9245 TriNum AP Med560.51.0705 Predom. Dn L/M643.60.9323 5B SF Bay M/H594.41.0094 TriNum AP High501.31.1968 Predom. Dn Med552.21.0866 5B SF Bay High566.71.0587 TriNum W/L Low961.20.6242 Predom. Dn M/H490.71.2228 5B AP Low793.80.7559 TriNum W/L Med681.00.8810 Predom. Dn High446.01.3454 5B AP L/M629.50.9531 TriNum W/L Hig601.20.9980 ChiMac Up Low763.30.7861 5B AP Med553.01.0849 Predom. Upwind634.60.9455 ChiMac Up Med691.00.8684 5B AP M/H508.51.1800 Predom. Reaching561.51.0685 ChiMac Up High607.40.9878 5B AP High482.31.2440 Predom. Downwind594.51.0093 ChiMac Off Low748.20.8019 5B W/L Low1077.90.5567 Predom. Up Low866.60.6924 ChiMac Off Med661.50.9071 5B W/L L/M786.50.7629 Predom. Up L/M664.00.9037 ChiMac Off High556.81.0776 5B W/L Med670.00.8956 Predom. Up Med591.61.0142 ChiMac AP Low752.30.7975 5B W/L M/H609.20.9849 Predom. Up M/H555.91.0792 ChiMac AP Med673.80.8904 5B W/L High580.81.0331 Predom. Up High539.71.1117 ChiMac AP High580.71.0332 W/L 60-40 Low1082.40.5543 Predom. Rc Low773.00.7762 BayMac Cove Island863.40.6949 W/L 60-40 L/M795.50.7542 Predom. Rc L/M595.21.0081 BayMac Shore856.50.7005 W/L 60-40 Med683.80.8774 Predom. Rc Med528.31.1358 Harvest Moon494.91.2123 W/L 60-40 M/H629.20.9536 Predom. Rc M/H482.91.2425 5B SF Bay Low909.60.6597 W/L 60-40 High606.70.9889      SA/DSPL Up25.94SA/DSPL Dn47.86
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance611.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating611.00.9820
FinRating, kevyt tuuli1061.30.9422
FinRating, kova tuuli483.91.0334
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9820
Triple Number Coastal/Long Distance Low0.8378
Triple Number Coastal/Long Distance Medium1.0706
Triple Number Coastal/Long Distance High1.1968
Triple Number Windward/Leeward Low0.6539
Triple Number Windward/Leeward Medium0.8810
Triple Number Windward/Leeward High0.9980
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
For information
General Purpose Handicap (GPH)630.6
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Saronikos S All_Purpose637.10.9417
Saronikos S Upwind718.20.8355
Saronikos S Downwind540.41.1103
Saronikos N All_Purpose637.10.9417
Saronikos N Upwind751.60.7983
Saronikos N Downwind594.31.0096
Saronikos SW All_Purpose640.70.9365
Saronikos SW Upwind737.30.8138
Saronikos SW Downwind547.61.0957
Saronikos NE All_Purpose696.10.8620
Saronikos NE Upwind705.90.8500
Saronikos NE Downwind665.30.9018
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose585.51.0248
5-Band All-Purpose Low863.70.6947
5-Band All-Purpose L/M652.10.9202
5-Band All-Purpose Med571.01.0508
5-Band All-Purpose M/H522.61.1480
5-Band All-Purpose High492.61.2180
Single Number Predominant Upwind608.50.9861
Single Number Predominant Reaching542.01.1070
Single Number Predominant Downwind571.41.0501
5-Band 50-50 Windward/Leeward Low1077.90.5567
5-Band 50-50 Windward/Leeward L/M786.50.7629
5-Band 50-50 Windward/Leeward Med670.00.8956
5-Band 50-50 Windward/Leeward M/H609.20.9849
5-Band 50-50 Windward/Leeward High580.81.0331
5-Band 60-40 Windward/Leeward Low1082.40.5543
5-Band 60-40 Windward/Leeward L/M795.50.7542
5-Band 60-40 Windward/Leeward Med683.80.8774
5-Band 60-40 Windward/Leeward M/H629.20.9536
5-Band 60-40 Windward/Leeward High606.70.9889
Triple Number 50-50 Windward/Leeward Low961.20.6242
Triple Number 50-50 Windward/Leeward Med681.10.8809
Triple Number 50-50 Windward/Leeward High601.20.9980
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward700.90.8561
Triple Number 60-40 Windward/Leeward Low967.00.6205
Triple Number 60-40 Windward/Leeward Med694.10.8644
Triple Number 60-40 Windward/Leeward High622.60.9637
Triple Number All-Purpose Low777.70.7715
Triple Number All-Purpose Med578.81.0365
Triple Number All-Purpose High514.61.1660
Triple Number Predominant Upwind Low790.60.7589
Triple Number Predominant Upwind Med600.60.9991
Triple Number Predominant Upwind High557.51.0762
Triple Number Predominant Reaching Low704.30.8519
Triple Number Predominant Reaching Med543.21.1046
Triple Number Predominant Reaching High465.71.2884
Triple Number Predominant Downwind Low776.80.7724
Triple Number Predominant Downwind Med562.01.0677
Triple Number Predominant Downwind High469.01.2793
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low716.2
Triple Number Coastal/Long Distance Medium560.4
Triple Number Coastal/Long Distance High501.3
Triple Number Windward/Leeward Low917.6
Triple Number Windward/Leeward Medium681.0
Triple Number Windward/Leeward High601.2
Predominantly Upwind609.9
Predominantly Downwind570.4
Predominantly Reaching549.5
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8378
Triple Number Coastal/Long Distance Medium1.0706
Triple Number Coastal/Long Distance High1.1968
Triple Number Windward/Leeward Low0.6539
Triple Number Windward/Leeward Medium0.8810
Triple Number Windward/Leeward High0.9980
Coastal/Long Distance0.9820
Predominantly Upwind0.9838
Predominantly Downwind1.0518
For information
General Purpose Handicap (GPH)630.6
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0651
Distanseseilas Trippeltall svak vind0.8378
Distanseseilas Trippeltall mellomvind1.0706
Distanseseilas Trippeltall sterk vind1.1968
Pølsebane Trippeltall svak vind0.6539
Pølsebane Trippeltall mellomvind0.8810
Pølsebane Trippeltall sterk vind0.9980
Motvind Singeltall0.9838
Medvind Singeltall1.0518
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Coastal/Long Distance611.00.9820
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind609.90.9838
Predominantly Downwind570.41.0518
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore564.81.0622
Cape Doctor Coastal467.41.2836
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8378
Triple Number Coastal/Long Distance Medium1.0706
Triple Number Coastal/Long Distance High1.1968
Triple Number Windward/Leeward Low0.6539
Triple Number Windward/Leeward Medium0.8810
Triple Number Windward/Leeward High0.9980
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8378
Triple Number Coastal/Long Distance Medium1.0706
Triple Number Coastal/Long Distance High1.1968
Triple Number Windward/Leeward Low0.6539
Triple Number Windward/Leeward Medium0.8810
Triple Number Windward/Leeward High0.9980
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Predominantly Upwind609.90.9838
Predominantly Downwind570.41.0518
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance611.00.9820
Triple Number Coastal/Long Distance Low716.20.8378
Triple Number Coastal/Long Distance Medium560.41.0706
Triple Number Coastal/Long Distance High501.31.1968
Triple Number Windward/Leeward Low917.60.6539
Triple Number Windward/Leeward Medium681.00.8810
Triple Number Windward/Leeward High601.20.9980
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1459.31014.1771.9648.2580.5542.6511.0458.4438.1
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP585.51.0248 Predom. Dn High446.01.3454 5B AP M/H508.51.1800 TriNum AP Low716.20.8378 Predom. Rc Low773.00.7762 5B AP High482.31.2440 TriNum AP Med560.51.0705 Predom. Rc L/M595.21.0081 5B SF Bay Low909.60.6597 TriNum AP High501.31.1968 Predom. Rc Med528.31.1358 5B SF Bay L/M751.00.7989 TriNum W/L Low961.20.6242 Predom. Rc M/H482.91.2425 5B SF Bay Med649.00.9245 TriNum W/L Med681.00.8810 Predom. Rc High450.11.3330 5B SF Bay M/H594.41.0094 TriNum W/L Hig601.20.9980 5B W/L Low1077.90.5567 5B SF Bay High566.71.0587 Predom. Upwind634.60.9455 5B W/L L/M786.50.7629 ChiMac Up Low763.30.7861 Predom. Reaching561.51.0685 5B W/L Med670.00.8956 ChiMac Up Med691.00.8684 Predom. Downwind594.51.0093 5B W/L M/H609.20.9849 ChiMac Up High607.40.9878 Predom. Up Low866.60.6924 5B W/L High580.81.0331 ChiMac Off Low748.20.8019 Predom. Up L/M664.00.9037 W/L 60-40 Low1082.40.5543 ChiMac Off Med661.50.9071 Predom. Up Med591.61.0142 W/L 60-40 L/M795.50.7542 ChiMac Off High556.81.0776 Predom. Up M/H555.91.0792 W/L 60-40 Med683.80.8774 ChiMac AP Low752.30.7975 Predom. Up High539.71.1117 W/L 60-40 M/H629.20.9536 ChiMac AP Med673.80.8904 Predom. Dn Low868.70.6907 W/L 60-40 High606.70.9889 ChiMac AP High580.71.0332 Predom. Dn L/M643.60.9323 5B AP Low793.80.7559 BayMac Cove Island863.40.6949 Predom. Dn Med552.21.0866 5B AP L/M629.50.9531 BayMac Shore856.50.7005 Predom. Dn M/H490.71.2228 5B AP Med553.01.0849 Harvest Moon494.91.2123      SA/DSPL Up25.94SA/DSPL Dn47.86
ORC Ref  03190004B5K Issued on 11/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
BLACK INDIANITA-18085
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 31Measurement07/05/2024HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.390Maximum beam3.336Draft1.925Displacement3,000Wetted area17.70IMS L8.617LSM08.249Accomod. length9.390Sink (kg/mm) 14.04
VCGD-0.168VCGM-0.106 RM Rated (kg·m) 75.0Limit of positive stability(°) 127.8 Stability Index 122.0 BLR index 0.0000Default crew weight523 Declared crew weight 560
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFeathering 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.406PBW0.103PIPA0.0026
EDL1.127ST10.042ST20.135
ST30.135ST40.088ST50.300
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P11.850IG12.380ISP13.470MDT10.100MDL10.145MDT20.072MDL20.105TL0.700MW0.145GO0.185
E4.050J3.530BAS1.610FSDFoilSFJ0.200SPL3.720WPLTPSBD0.120MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.168Flotation Date07/10/2024
SFFP0.367FFM1.241FF1.241LCFcl5.050SG1.0250
SAFP9.250FAM1.137FA1.137LCFsh5.293HBI1.177
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03190004B5K Issued on 11/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
BLACK INDIANITA-18085
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.150.981.742.773.5130.0307/10/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.070.651.122.052.963.8311.97YesNo 24.1307/10/2024
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentA12.6012.6012.606.726.4069.8907/10/2024
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  03190004B5K Issued on 11/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org