Club
Certificate
2023

Boat

MIKAKU

GBR-1157_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles42.0°40.5°39.4°39.6°40.0°40.5°41.8°
Beat VMG3.363.974.194.254.264.244.12
52°5.065.816.056.156.196.216.13
60°5.296.016.266.366.426.456.43
75°5.456.146.476.666.786.866.93
90°5.456.126.546.867.107.287.49
110°5.646.396.747.027.287.538.12
120°5.546.406.917.307.668.018.71
135°5.056.116.797.408.108.8610.33
150°4.315.396.186.787.318.0010.54
Run VMG3.734.675.355.876.336.939.13
Gybe Angles144.8°148.7°150.1°149.2°146.8°144.8°144.9°

APH: 608.1

CDL: 6.615

GPH: 671.4

CertNo: 115701

BOAT
ClassJ 80DesignerJOHNSTONEBuilderJ COMPOSITEAge date01/2007Series date01/1995Offset fileJ80.OD.offData fileGBR1157_C
HULL
Length Overall8.000 mMaximum Beam2.488 mDraft1.497 mDisplacement1,437 kgDLR4.5633IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight145 kgMinimum weight85 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail20.9121.53Headsail Luffed13.9813.98Headsail FlyingSymmetricAsymmetric64.9964.99 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.10Storm Jib4.58Heavy Weather Jib12.35
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
Rated out of OD class with reduced crew weight
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  03510002TDKIssued on 27/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MIKAKU

GBR-1157_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1070.6906.9860.2846.8844.8848.6872.9
52°711.8619.6594.6585.4581.5580.0587.3
60°680.3599.5575.3565.9560.9558.1559.8
75°660.6586.0556.4540.4531.0524.8519.5
90°660.0588.2550.2525.1506.8494.5480.5
110°638.8563.4534.2512.6494.3478.0443.5
120°649.8562.4520.7492.9470.3449.5413.6
135°712.7589.6530.4486.2444.6406.3348.5
150°835.8667.3582.7531.3492.7450.1341.4
Run VMG965.1770.5672.6613.5568.9519.7394.2
Selected Courses
Windward / Leeward1017.9838.7766.4730.2706.8684.2633.5
All purpose793.1671.8622.9596.0576.9560.1529.5
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward748.50.8016
All purpose608.10.9867
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6719
Downwind "popa"0.9324
70% up, 30% down "Ilhabela"0.7334
30% up, 70% down "Ilhabela-inverso"0.8353
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Predominantly Upwind669.00.8969
Predominantly Downwind590.11.0167
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low732.40.8192
Triple Number All Purpose Medium606.50.9893
Triple Number All Purpose High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Predominantly Upwind669.00.8969
Predominantly Downwind590.11.0167
Predominantly Upwind Low823.90.7283
Predominantly Upwind Medium706.40.8493
Predominantly Upwind High693.50.8652
Predominantly Downwind Low779.40.7699
Predominantly Downwind Medium581.91.0311
Predominantly Downwind High470.91.2742
Chicago-Mac Upwind0.8817
Chicago-Mac All Purpose0.9359
Chicago-Mac Downwind0.9997
Bayview-Mac Cove Island0.8840
Bayview-Mac Shore0.8831
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching569.21.0541
Predominantly Reaching Low667.40.8990
Predominantly Reaching Medium562.81.0661
Predominantly Reaching High497.51.2061
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1004.10.5976
5-Band Low / Medium864.70.6939
5-Band Medium737.40.8136
5-Band Medium / High683.30.8781
5-Band High642.30.9341
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance657.7
Triple Number Coastal/Long Distance Low732.4
Triple Number Coastal/Long Distance Medium606.5
Triple Number Coastal/Long Distance High552.8
Triple Number Windward/Leeward Low928.2
Triple Number Windward/Leeward Medium745.4
Triple Number Windward/Leeward High670.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8192
Triple Number Coastal/Long Distance Medium0.9893
Triple Number Coastal/Long Distance High1.0854
Triple Number Windward/Leeward Low0.6464
Triple Number Windward/Leeward Medium0.8049
Triple Number Windward/Leeward High0.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low732.4
Triple Number Coastal/Long Distance Medium606.5
Triple Number Coastal/Long Distance High552.8
Triple Number Windward/Leeward Low928.2
Triple Number Windward/Leeward Medium745.4
Triple Number Windward/Leeward High670.8
Predominantly Upwind669.0
Predominantly Downwind590.1
Predominantly Reaching574.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8192
Triple Number Coastal/Long Distance Medium0.9893
Triple Number Coastal/Long Distance High1.0854
Triple Number Windward/Leeward Low0.6464
Triple Number Windward/Leeward Medium0.8049
Triple Number Windward/Leeward High0.8944
Coastal/Long Distance0.9122
Predominantly Upwind0.8969
Predominantly Downwind1.0167
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8192
Tretall Distanseseilas Mellomvind0.9893
Tretall Distanseseilas Mye vind1.0854
Tretall Pølsebane Lite vind0.6464
Tretall Pølsebane Mellomvind0.8049
Tretall Pølsebane Mye vind0.8944
Distanseseilas ett tall (OSN 8-16kn)0.9122
Distanseseilas ett tall (APH 6-20kn)0.9867
Enkeltall Motvind0.8969
Enkeltall Medvind1.0167
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Coastal/Long Distance657.70.9122
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind669.00.8969
Predominantly Downwind590.11.0167
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore648.70.9249
Cape Doctor Coastal538.71.1138
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8192
Triple Number Coastal/Long Distance Medium0.9893
Triple Number Coastal/Long Distance High1.0854
Triple Number Windward/Leeward Low0.6464
Triple Number Windward/Leeward Medium0.8049
Triple Number Windward/Leeward High0.8944
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8192
Triple Number Coastal/Long Distance Medium0.9893
Triple Number Coastal/Long Distance High1.0854
Triple Number Windward/Leeward Low0.6464
Triple Number Windward/Leeward Medium0.8049
Triple Number Windward/Leeward High0.8944
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Predominantly Upwind669.00.8969
Predominantly Downwind590.11.0167
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance657.70.9122
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium606.50.9893
Triple Number Coastal/Long Distance High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1012.6791.8695.2637.1600.0564.9500.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low732.40.8192
Triple Number All Purpose Medium606.50.9893
Triple Number All Purpose High552.81.0854
Triple Number Windward/Leeward Low928.20.6464
Triple Number Windward/Leeward Medium745.40.8049
Triple Number Windward/Leeward High670.80.8944
Predominantly Upwind669.00.8969
Predominantly Downwind590.11.0167
Predominantly Upwind Low823.90.7283
Predominantly Upwind Medium706.40.8493
Predominantly Upwind High693.50.8652
Predominantly Downwind Low779.40.7699
Predominantly Downwind Medium581.91.0311
Predominantly Downwind High470.91.2742
Chicago-Mac Upwind0.8817
Chicago-Mac All Purpose0.9359
Chicago-Mac Downwind0.9997
Bayview-Mac Cove Island0.8840
Bayview-Mac Shore0.8831
Harvest Moon Regatta516.41.1618
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy656.60.9138
San Francisco Bay Medium729.20.8228
Predominantly Reaching569.21.0541
Predominantly Reaching Low667.40.8990
Predominantly Reaching Medium562.81.0661
Predominantly Reaching High497.51.2061
Windward/Leeward 60-40 Low940.40.6380
Windward/Leeward 60-40 Medium782.90.7664
Windward/Leeward 60-40 High734.10.8173
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1004.10.5976
5-Band Low / Medium864.70.6939
5-Band Medium737.40.8136
5-Band Medium / High683.30.8781
5-Band High642.30.9341
ORC Ref  03510002TDKIssued on 27/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MIKAKU

GBR-1157_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 80Measurement04/11/2019HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.000Max. Beam2.488Draft1.497Displacement1,437Wetted area11.80IMS L7.010LSM06.802Acc. length8.032Sink (kg/mm) 9.00
VCGD-0.154VCGM-0.081RM Rated (kg·m) 27.1Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P9.144IG9.563ISP10.073MDT10.082MDL10.133MDT20.063MDL20.104TL0.380MW0.133GO0.133
E3.810J2.895BAS1.300FSD0.027SFJ0.000SPLWPLTPS4.800BD0.094MWT33.10MCG3.210
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date06/03/2020MeasurerComment
SFFP0.177FFMFF0.877LCFcl4.258SG1.0250
SAFP8.015FAMFA0.627LCFsh4.434HBI0.739
W123.0W223.0W323.0W423.0
PD1524.7PD2524.3PD3525.0PD4524.9
WD7.850PLM9000.00GSA1.0RSA1.0RM27.1
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03510002TDKIssued on 27/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MIKAKU

GBR-1157_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.160.791.452.483.2420.91* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.081.482.959.30YesNo 13.98* Copied from legacy *
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentORC12.209.9011.056.987.3795%64.99
ORC Ref  03510002TDKIssued on 27/10/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org