International
Certificate
2023

Boat

KIBOKO TATU

USA 61344

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.5°41.7°40.0°38.8°38.2°38.7°38.8°
Beat VMG3.544.324.905.245.385.455.49
52°5.526.597.117.447.617.697.77
60°5.976.957.417.637.827.938.04
75°6.387.267.717.978.128.288.50
90°6.447.347.828.198.508.719.00
110°6.037.147.768.218.588.909.65
120°5.817.007.688.168.639.079.80
135°5.256.477.327.848.308.789.88
150°4.425.606.607.347.838.269.17
Run VMG3.834.855.736.467.087.608.42
Gybe Angles142.6°148.0°152.0°157.4°167.3°177.2°177.2°

APH: 527.9

CDL: 9.972

GPH: 592.2

CertNo: US7521

BOAT
ClassArcona 380DesignerStefan QuibergBuilderArcona YachtsAge date01/2020Series date01/2013Offset fileARCONA380-USA61344.OFFData fileUS7421
HULL
Length Overall11.295 mMaximum Beam3.790 mDraft2.062 mDisplacement6,994 kgDLR6.3782IMS DivisionCruiser/RacerDynamic Allowance0.180%Age Allowance0.325%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.435m
CREW
Maximum weight730 kgMinimum weight548 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail48.7749.40Headsail Luffed35.1135.11Headsail Flying66.6466.64Symmetric123.37123.37Asymmetric
STORM SAIL AREAS (m²)
Trysail15.13Storm Jib13.10Heavy Weather Jib35.36
SAIL LIMITS
Headsails6  Spinnakers5
STABILITY
Righting Moment217.3 kg·mStability Index115.9
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  04560002SU6Issued on 05/10/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

KIBOKO TATU

USA 61344

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1017.9833.1734.7687.3669.5660.5655.9
52°651.7546.7506.3483.6473.1468.0463.3
60°603.0518.0485.5471.7460.1454.2448.0
75°564.4495.9467.0451.5443.5434.8423.3
90°559.0490.8460.5439.6423.5413.1400.1
110°596.7504.5463.7438.6419.7404.7372.9
120°619.2514.4468.7441.0417.3397.1367.3
135°686.3556.5492.1459.0433.5410.2364.3
150°814.0642.8545.1490.2459.5435.6392.8
Run VMG940.0742.3628.5557.1508.8473.9427.6
Selected Courses
Windward / Leeward978.9787.7681.6622.2589.2567.2541.7
All purpose742.0611.9546.0509.4488.2473.1451.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward652.30.9198
All purpose527.91.1367
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7987
Downwind "popa"0.9817
70% up, 30% down "Ilhabela"0.8460
30% up, 70% down "Ilhabela-inverso"0.9186
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Predominantly Upwind572.41.0483
Predominantly Downwind534.61.1224
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low677.00.8863
Triple Number All Purpose Medium524.91.1431
Triple Number All Purpose High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Predominantly Upwind572.41.0483
Predominantly Downwind534.61.1224
Predominantly Upwind Low763.00.7864
Predominantly Upwind Medium592.51.0127
Predominantly Upwind High550.51.0899
Predominantly Downwind Low737.10.8140
Predominantly Downwind Medium530.41.1312
Predominantly Downwind High442.31.3566
Chicago-Mac Upwind1.0280
Chicago-Mac All Purpose1.0623
Chicago-Mac Downwind1.1025
Bayview-Mac Cove Island0.9897
Bayview-Mac Shore0.9965
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching497.71.2056
Predominantly Reaching Low604.40.9927
Predominantly Reaching Medium493.81.2150
Predominantly Reaching High435.91.3764
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low964.20.6223
5-Band Low / Medium806.00.7444
5-Band Medium635.80.9437
5-Band Medium / High571.21.0504
5-Band High546.11.0986
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance576.0
Triple Number Coastal/Long Distance Low677.0
Triple Number Coastal/Long Distance Medium524.9
Triple Number Coastal/Long Distance High468.8
Triple Number Windward/Leeward Low883.3
Triple Number Windward/Leeward Medium647.5
Triple Number Windward/Leeward High563.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8863
Triple Number Coastal/Long Distance Medium1.1431
Triple Number Coastal/Long Distance High1.2800
Triple Number Windward/Leeward Low0.6793
Triple Number Windward/Leeward Medium0.9266
Triple Number Windward/Leeward High1.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low677.0
Triple Number Coastal/Long Distance Medium524.9
Triple Number Coastal/Long Distance High468.8
Triple Number Windward/Leeward Low883.3
Triple Number Windward/Leeward Medium647.5
Triple Number Windward/Leeward High563.1
Predominantly Upwind572.4
Predominantly Downwind534.6
Predominantly Reaching510.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8863
Triple Number Coastal/Long Distance Medium1.1431
Triple Number Coastal/Long Distance High1.2800
Triple Number Windward/Leeward Low0.6793
Triple Number Windward/Leeward Medium0.9266
Triple Number Windward/Leeward High1.0655
Coastal/Long Distance1.0418
Predominantly Upwind1.0483
Predominantly Downwind1.1224
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8863
Tretall Distanseseilas Mellomvind1.1431
Tretall Distanseseilas Mye vind1.2800
Tretall Pølsebane Lite vind0.6793
Tretall Pølsebane Mellomvind0.9266
Tretall Pølsebane Mye vind1.0655
Distanseseilas ett tall (OSN 8-16kn)1.0418
Distanseseilas ett tall (APH 6-20kn)1.1367
Enkeltall Motvind1.0483
Enkeltall Medvind1.1224
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Coastal/Long Distance576.01.0418
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind572.41.0483
Predominantly Downwind534.61.1224
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore549.41.0922
Cape Doctor Coastal457.91.3103
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8863
Triple Number Coastal/Long Distance Medium1.1431
Triple Number Coastal/Long Distance High1.2800
Triple Number Windward/Leeward Low0.6793
Triple Number Windward/Leeward Medium0.9266
Triple Number Windward/Leeward High1.0655
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8863
Triple Number Coastal/Long Distance Medium1.1431
Triple Number Coastal/Long Distance High1.2800
Triple Number Windward/Leeward Low0.6793
Triple Number Windward/Leeward Medium0.9266
Triple Number Windward/Leeward High1.0655
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Predominantly Upwind572.41.0483
Predominantly Downwind534.61.1224
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.01.0418
Triple Number Coastal/Long Distance Low677.00.8863
Triple Number Coastal/Long Distance Medium524.91.1431
Triple Number Coastal/Long Distance High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance975.0738.5614.4544.2506.4477.0431.5
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low677.00.8863
Triple Number All Purpose Medium524.91.1431
Triple Number All Purpose High468.81.2800
Triple Number Windward/Leeward Low883.30.6793
Triple Number Windward/Leeward Medium647.50.9266
Triple Number Windward/Leeward High563.11.0655
Predominantly Upwind572.41.0483
Predominantly Downwind534.61.1224
Predominantly Upwind Low763.00.7864
Predominantly Upwind Medium592.51.0127
Predominantly Upwind High550.51.0899
Predominantly Downwind Low737.10.8140
Predominantly Downwind Medium530.41.1312
Predominantly Downwind High442.31.3566
Chicago-Mac Upwind1.0280
Chicago-Mac All Purpose1.0623
Chicago-Mac Downwind1.1025
Bayview-Mac Cove Island0.9897
Bayview-Mac Shore0.9965
Harvest Moon Regatta455.31.3177
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy552.11.0868
San Francisco Bay Medium642.00.9345
Predominantly Reaching497.71.2056
Predominantly Reaching Low604.40.9927
Predominantly Reaching Medium493.81.2150
Predominantly Reaching High435.91.3764
Windward/Leeward 60-40 Low891.80.6728
Windward/Leeward 60-40 Medium669.10.8968
Windward/Leeward 60-40 High596.41.0060
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low964.20.6223
5-Band Low / Medium806.00.7444
5-Band Medium635.80.9437
5-Band Medium / High571.21.0504
5-Band High546.11.0986
ORC Ref  04560002SU6Issued on 05/10/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

KIBOKO TATU

USA 61344

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassArcona 380MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA11.295Max. Beam3.790Draft2.062Displacement6,994Wetted area30.56IMS L10.503LSM010.311Acc. length11.295Sink (kg/mm) 23.86
VCGD-0.021VCGM0.046RM Rated (kg·m) 217.3Limit of positive stability(°) 113.9Stability Index115.9
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.435PBW0.135PIPA0.0034
EDL2.840ST10.042ST20.180
ST30.180ST40.112ST50.265
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P16.000IG16.069ISP17.310MDT10.125MDL10.225MDT20.125MDL20.165TL2.730MW0.205GO0.235
E5.402J4.230BAS1.655FSD0.030SFJ0.210SPL4.730WPLTPS4.730BD0.190MWT193.60MCG5.990
Flying Headsail Foretriangles IdISPTPS117.0004.730
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date01/07/2020MeasurerComment
SFFP0.231FFM1.340FF1.349LCFcl6.361SG1.0040
SAFP11.055FAM1.097FA1.102LCFsh6.630HBI1.173
W194.6W294.6W394.6W494.6
PD1397.2PD2402.2PD3393.8PD4395.9
WD11.480PLM9000.00GSA1.0RSA1.0RM215.3
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1Water SS Water tank20004.432Fuel SS Fuel tank0.9000150154.234Water SS Calorifier2504.000.003Waste SS Black Water Tank8002.800.50Total deductible144.23
OTHER ITEMSIdKindDescriptionWeightLCGVCG3MiscellaneousHeater810.000.502MiscellaneousAP Ram89.500.001MiscellaneousCharger69.000.002Battery70 Ah engine start battery204.000.001Battery3x 90 Ah batteries844.000.00Total deductible0
ORC Ref  04560002SU6Issued on 05/10/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

KIBOKO TATU

USA 61344

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM10.211.031.823.184.3848.7717/03/2023OSE4032-001 remeasure
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentCode 680.081.252.434.485.876.7516.74NoYes166.6401/04/2023OSE6971-001Furling0.100.631.202.243.294.3615.73YesNo 35.1117/03/2023OSE4032-002 remeasureHWJ0.100.631.172.213.284.3315.35YesNo 33.9717/03/2023OSE4032-003 remeasureSS (Reach)0.080.470.881.712.573.4413.20NoInner 22.8119/03/2015StaysailSS0.060.430.831.612.403.1813.75NoInner 22.1519/11/2018Staysail
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS216.9016.9016.908.858.40123.3702/09/2020OSE4032-004S317.2917.2917.297.338.50108.9831/08/2020OSE4032-005
ORC Ref  04560002SU6Issued on 05/10/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org