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°38.4°38.8°39.4°
Beat VMG3.544.334.905.215.335.405.42
52°5.546.587.107.437.587.667.73
60°5.986.957.397.627.807.897.99
75°6.387.267.707.958.088.268.46
90°6.457.347.828.188.488.688.96
110°6.057.147.768.208.568.909.63
120°5.837.017.698.178.639.069.82
135°5.266.487.327.858.328.809.92
150°4.435.616.627.357.848.289.20
Run VMG3.844.865.746.477.087.608.43
Gybe Angles142.6°148.0°152.0°157.4°167.6°177.2°177.2°

APH: 528.6

CDL: 9.901

GPH: 592.6

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 weight600 kgMinimum weight450 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 Index116.7
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  04560002HOFIssued on 12/04/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © 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 VMG1015.7831.7735.2691.3675.1666.9663.9
52°650.4546.9507.3484.6475.2470.2466.0
60°602.2518.2487.0472.2461.5456.0450.5
75°564.0495.9467.4453.0445.4435.9425.4
90°558.3490.6460.4439.8424.4414.8401.8
110°595.2504.4463.7439.0420.8404.7373.7
120°617.9513.8468.4440.7417.2397.3366.8
135°685.0555.5491.5458.4432.6409.2362.9
150°812.4641.7544.2489.6458.9434.7391.3
Run VMG938.0741.0627.4556.4508.5473.5426.8
Selected Courses
Windward / Leeward976.9786.3681.3623.9591.8570.2545.4
All purpose740.5611.2546.0510.4489.8474.9453.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward653.50.9181
All purpose528.61.1351
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7955
Downwind "popa"0.9832
70% up, 30% down "Ilhabela"0.8438
30% up, 70% down "Ilhabela-inverso"0.9182
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Predominantly Upwind573.51.0461
Predominantly Downwind534.41.1228
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low675.90.8877
Triple Number All Purpose Medium525.51.1417
Triple Number All Purpose High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Predominantly Upwind573.51.0461
Predominantly Downwind534.41.1228
Predominantly Upwind Low761.70.7877
Predominantly Upwind Medium594.21.0098
Predominantly Upwind High554.71.0817
Predominantly Downwind Low735.80.8154
Predominantly Downwind Medium530.01.1321
Predominantly Downwind High442.21.3570
Chicago-Mac Upwind1.0262
Chicago-Mac All Purpose1.0617
Chicago-Mac Downwind1.1030
Bayview-Mac Cove Island0.9900
Bayview-Mac Shore0.9965
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching498.01.2049
Predominantly Reaching Low603.60.9941
Predominantly Reaching Medium493.91.2148
Predominantly Reaching High436.81.3736
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low962.20.6236
5-Band Low / Medium804.90.7454
5-Band Medium637.10.9417
5-Band Medium / High574.21.0449
5-Band High549.71.0916
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance576.6
Triple Number Coastal/Long Distance Low675.9
Triple Number Coastal/Long Distance Medium525.5
Triple Number Coastal/Long Distance High470.6
Triple Number Windward/Leeward Low881.6
Triple Number Windward/Leeward Medium648.5
Triple Number Windward/Leeward High566.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8877
Triple Number Coastal/Long Distance Medium1.1417
Triple Number Coastal/Long Distance High1.2750
Triple Number Windward/Leeward Low0.6806
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low675.9
Triple Number Coastal/Long Distance Medium525.5
Triple Number Coastal/Long Distance High470.6
Triple Number Windward/Leeward Low881.6
Triple Number Windward/Leeward Medium648.5
Triple Number Windward/Leeward High566.3
Predominantly Upwind573.5
Predominantly Downwind534.4
Predominantly Reaching510.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8877
Triple Number Coastal/Long Distance Medium1.1417
Triple Number Coastal/Long Distance High1.2750
Triple Number Windward/Leeward Low0.6806
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.0595
Coastal/Long Distance1.0405
Predominantly Upwind1.0461
Predominantly Downwind1.1228
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8877
Tretall Distanseseilas Mellomvind1.1417
Tretall Distanseseilas Mye vind1.2750
Tretall Pølsebane Lite vind0.6806
Tretall Pølsebane Mellomvind0.9252
Tretall Pølsebane Mye vind1.0595
Distanseseilas ett tall (OSN 8-16kn)1.0405
Distanseseilas ett tall (APH 6-20kn)1.1351
Enkeltall Motvind1.0461
Enkeltall Medvind1.1228
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Coastal/Long Distance576.61.0405
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind573.51.0461
Predominantly Downwind534.41.1228
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore552.81.0854
Cape Doctor Coastal459.91.3045
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8877
Triple Number Coastal/Long Distance Medium1.1417
Triple Number Coastal/Long Distance High1.2750
Triple Number Windward/Leeward Low0.6806
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.0595
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8877
Triple Number Coastal/Long Distance Medium1.1417
Triple Number Coastal/Long Distance High1.2750
Triple Number Windward/Leeward Low0.6806
Triple Number Windward/Leeward Medium0.9252
Triple Number Windward/Leeward High1.0595
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Predominantly Upwind573.51.0461
Predominantly Downwind534.41.1228
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.61.0405
Triple Number Coastal/Long Distance Low675.90.8877
Triple Number Coastal/Long Distance Medium525.51.1417
Triple Number Coastal/Long Distance High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.0737.3614.4545.2508.0478.8432.9
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low675.90.8877
Triple Number All Purpose Medium525.51.1417
Triple Number All Purpose High470.61.2750
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium648.50.9252
Triple Number Windward/Leeward High566.31.0595
Predominantly Upwind573.51.0461
Predominantly Downwind534.41.1228
Predominantly Upwind Low761.70.7877
Predominantly Upwind Medium594.21.0098
Predominantly Upwind High554.71.0817
Predominantly Downwind Low735.80.8154
Predominantly Downwind Medium530.01.1321
Predominantly Downwind High442.21.3570
Chicago-Mac Upwind1.0262
Chicago-Mac All Purpose1.0617
Chicago-Mac Downwind1.1030
Bayview-Mac Cove Island0.9900
Bayview-Mac Shore0.9965
Harvest Moon Regatta455.51.3172
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy555.01.0810
San Francisco Bay Medium642.80.9334
Predominantly Reaching498.01.2049
Predominantly Reaching Low603.60.9941
Predominantly Reaching Medium493.91.2148
Predominantly Reaching High436.81.3736
Windward/Leeward 60-40 Low890.00.6741
Windward/Leeward 60-40 Medium670.70.8946
Windward/Leeward 60-40 High600.80.9986
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low962.20.6236
5-Band Low / Medium804.90.7454
5-Band Medium637.10.9417
5-Band Medium / High574.21.0449
5-Band High549.71.0916
ORC Ref  04560002HOFIssued on 12/04/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © 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 L10.471LSM010.311Acc. length11.295Sink (kg/mm) 23.86
VCGD-0.021VCGM0.046RM Rated (kg·m) 217.3Limit of positive stability(°) 114.7Stability Index116.7
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  04560002HOFIssued on 12/04/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © 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  04560002HOFIssued on 12/04/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org