Non Spin/HSFClub Certificate2025
JiyuuJ8800
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
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 Angles41.8°41.8°39.8°37.8°36.9°36.8°36.7°36.9°38.9°
Beat VMG2.573.574.334.764.915.005.055.074.91
52°3.975.346.266.686.836.926.977.036.97
60°4.225.586.446.847.027.117.187.267.22
75°4.395.736.546.977.247.427.537.697.75
90°4.245.616.486.967.327.617.858.188.39
110°3.584.956.036.727.187.608.008.819.33
120°3.294.635.746.537.027.467.908.8810.31
135°2.784.015.126.016.657.107.528.449.68
150°2.303.384.405.266.026.586.987.748.63
Run VMG2.012.933.814.675.476.176.717.498.33
Gybe Angles144.8°144.8°146.1°174.8°176.6°178.0°179.0°179.5°179.3°
APH ToD:594.1CDL: 8.375APH ToT: 1.0099CertNo:7201
BOAT
ClassJ 88DesignerAlan JohnstoneBuilderJ BoatsAge date01/2015Series date01/2014Offset fileJ-88.offData file7201
HULL
Length Overall8.957 mMaximum Beam2.854 mDraft1.979 mDisplacement2,431 kgDLR4.5253IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.357%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.400m
CREW
Maximum weight340 kg(declared)Minimum weight210 kg ✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail26.3426.97Headsail Luffed20.5820.58Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail7.20Storm Jib6.79Heavy Weather Jib18.33
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ No spinnaker pole aboard
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
Disp -2435kg
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  03020003UVWIssued on 30/06/2025Valid until 30/06/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2025
JiyuuJ8800
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
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 VMG1398.21009.6831.7757.0732.5720.6713.5709.8732.6
52°906.4674.2574.7539.0526.9520.5516.4512.4516.2
60°853.3645.3559.3526.6513.2506.2501.4496.1498.8
75°821.0628.1550.3516.5497.5485.3478.0468.1464.4
90°849.3641.9555.2517.2492.0473.0458.5439.9429.3
110°1006.5726.8597.2535.4501.6473.8449.9408.5385.8
120°1094.3777.8627.2551.4512.6482.8455.8405.2349.3
135°1295.2897.8703.8598.5541.0507.2478.8426.7371.8
150°1567.61063.5817.5684.1598.4546.9515.5465.2417.0
Run VMG1795.01228.1944.0770.5657.9583.3536.9480.4432.1
Selected Courses
Windward / Leeward1595.31118.8887.8763.7695.2651.9625.2595.1582.4
All purpose1191.4852.8693.7615.3573.1546.3527.8501.3485.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward728.70.8234
All purpose594.11.0099
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7672
Downwind "popa"0.8075
70% up, 30% down "Ilhabela"0.7789
30% up, 70% down "Ilhabela-inverso"0.7950
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Predominantly Upwind626.70.9574
Predominantly Downwind622.30.9642
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low773.20.7760
Triple Number AP Medium590.61.0160
Triple Number AP High522.51.1484
Triple Number Windward/Leeward Low1050.20.5713
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Single Number Predominant Upwind651.30.9213
Single Number Predominant Reaching593.21.0115
Single Number Predominant Downwind653.80.9178
Predominant Upwind - Low889.50.6745
Predominant Upwind - Low/Med681.30.8806
Predominant Upwind - Medium607.10.9884
Predominant Upwind - Med/High570.41.0519
Predominant Upwind - High554.91.0813
Predominant Downwind Low1001.80.5989
Predominant Downwind Low/Med720.40.8329
Predominant Downwind Medium597.11.0049
Predominant Downwind Med/High521.01.1517
Predominant Downwind High478.91.2528
Predominant Reaching Low837.20.7167
Predominant Reaching Low/Med633.60.9469
Predominant Reaching Medium552.31.0864
Predominant Reaching Med/High503.51.1918
Predominant Reaching High475.21.2626
SA/DSPL Upwind25.88SA/DSPL Downwind25.88
Scoring OptionTODTOT
5-Band Windward/Leeward Low1180.50.5082
5-Band Windward/Leeward Low/Med849.70.7062
5-Band Windward/Leeward Medium709.50.8457
5-Band Windward/Leeward Med/High630.50.9516
5-Band Windward/Leeward High598.11.0032
Windward/Leeward 60-40 Low1156.90.5186
Windward/Leeward 60-40 Low/Med843.10.7116
Windward/Leeward 60-40 Medium715.80.8382
Windward/Leeward 60-40 Med/High647.50.9266
Windward/Leeward 60-40 High621.40.9656
5-Band AP Low873.00.6873
5-Band AP Low/Med671.70.8933
5-Band AP Medium581.81.0312
5-Band AP Med/High530.21.1316
5-Band AP High503.11.1925
5-Band SF Bay Tour - Low1004.30.5975
5-Band SF Bay Tour - Low/Med807.80.7428
5-Band SF Bay Tour - Medium685.10.8758
5-Band SF Bay Tour - Med/High618.10.9708
5-Band SF Bay Tour - High588.51.0196
Chicago-Mac Upwind0.8958
Chicago-Mac All Purpose0.8929
Chicago-Mac Downwind0.8796
Bayview-Mac Cove Island0.6426
Bayview-Mac Shore0.6509
Harvest Moon Regatta516.21.1624
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance648.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating648.70.9250
FinRating, kevyt tuuli1164.40.8588
FinRating, kova tuuli505.60.9889
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9250
Triple Number Coastal/Long Distance Low0.7760
Triple Number Coastal/Long Distance Medium1.0161
Triple Number Coastal/Long Distance High1.1484
Triple Number Windward/Leeward Low0.5980
Triple Number Windward/Leeward Medium0.8295
Triple Number Windward/Leeward High0.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
For information
General Purpose Handicap (GPH)669.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low773.2
Triple Number Coastal/Long Distance Medium590.5
Triple Number Coastal/Long Distance High522.5
Triple Number Windward/Leeward Low1003.3
Triple Number Windward/Leeward Medium723.3
Triple Number Windward/Leeward High620.6
Predominantly Upwind626.7
Predominantly Downwind622.3
Predominantly Reaching586.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7760
Triple Number Coastal/Long Distance Medium1.0161
Triple Number Coastal/Long Distance High1.1484
Triple Number Windward/Leeward Low0.5980
Triple Number Windward/Leeward Medium0.8295
Triple Number Windward/Leeward High0.9668
Coastal/Long Distance0.9250
Predominantly Upwind0.9574
Predominantly Downwind0.9642
For information
General Purpose Handicap (GPH)669.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0099
Distanseseilas Trippeltall svak vind0.7760
Distanseseilas Trippeltall mellomvind1.0161
Distanseseilas Trippeltall sterk vind1.1484
Pølsebane Trippeltall svak vind0.5980
Pølsebane Trippeltall mellomvind0.8295
Pølsebane Trippeltall sterk vind0.9668
Motvind Singeltall0.9574
Medvind Singeltall0.9642
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Coastal/Long Distance648.70.9250
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind626.70.9574
Predominantly Downwind622.30.9642
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore586.21.0236
Cape Doctor Coastal490.01.2244
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7760
Triple Number Coastal/Long Distance Medium1.0161
Triple Number Coastal/Long Distance High1.1484
Triple Number Windward/Leeward Low0.5980
Triple Number Windward/Leeward Medium0.8295
Triple Number Windward/Leeward High0.9668
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7760
Triple Number Coastal/Long Distance Medium1.0161
Triple Number Coastal/Long Distance High1.1484
Triple Number Windward/Leeward Low0.5980
Triple Number Windward/Leeward Medium0.8295
Triple Number Windward/Leeward High0.9668
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Predominantly Upwind626.70.9574
Predominantly Downwind622.30.9642
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance648.70.9250
Triple Number Coastal/Long Distance Low773.20.7760
Triple Number Coastal/Long Distance Medium590.51.0161
Triple Number Coastal/Long Distance High522.51.1484
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1734.71129.8838.2691.8611.3567.3533.9478.8456.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low773.20.7760
Triple Number AP Medium590.61.0160
Triple Number AP High522.51.1484
Triple Number Windward/Leeward Low1050.20.5713
Triple Number Windward/Leeward Medium723.30.8295
Triple Number Windward/Leeward High620.60.9668
Single Number Predominant Upwind651.30.9213
Single Number Predominant Reaching593.21.0115
Single Number Predominant Downwind653.80.9178
Predominant Upwind - Low889.50.6745
Predominant Upwind - Low/Med681.30.8806
Predominant Upwind - Medium607.10.9884
Predominant Upwind - Med/High570.41.0519
Predominant Upwind - High554.91.0813
Predominant Downwind Low1001.80.5989
Predominant Downwind Low/Med720.40.8329
Predominant Downwind Medium597.11.0049
Predominant Downwind Med/High521.01.1517
Predominant Downwind High478.91.2528
Predominant Reaching Low837.20.7167
Predominant Reaching Low/Med633.60.9469
Predominant Reaching Medium552.31.0864
Predominant Reaching Med/High503.51.1918
Predominant Reaching High475.21.2626
SA/DSPL Upwind25.88SA/DSPL Downwind25.88
Scoring OptionTODTOT
5-Band Windward/Leeward Low1180.50.5082
5-Band Windward/Leeward Low/Med849.70.7062
5-Band Windward/Leeward Medium709.50.8457
5-Band Windward/Leeward Med/High630.50.9516
5-Band Windward/Leeward High598.11.0032
Windward/Leeward 60-40 Low1156.90.5186
Windward/Leeward 60-40 Low/Med843.10.7116
Windward/Leeward 60-40 Medium715.80.8382
Windward/Leeward 60-40 Med/High647.50.9266
Windward/Leeward 60-40 High621.40.9656
5-Band AP Low873.00.6873
5-Band AP Low/Med671.70.8933
5-Band AP Medium581.81.0312
5-Band AP Med/High530.21.1316
5-Band AP High503.11.1925
5-Band SF Bay Tour - Low1004.30.5975
5-Band SF Bay Tour - Low/Med807.80.7428
5-Band SF Bay Tour - Medium685.10.8758
5-Band SF Bay Tour - Med/High618.10.9708
5-Band SF Bay Tour - High588.51.0196
Chicago-Mac Upwind0.8958
Chicago-Mac All Purpose0.8929
Chicago-Mac Downwind0.8796
Bayview-Mac Cove Island0.6426
Bayview-Mac Shore0.6509
Harvest Moon Regatta516.21.1624
ORC Ref  03020003UVWIssued on 30/06/2025Valid until 30/06/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2025
JiyuuJ8800
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 88Measurement26/08/2022HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.957Max. Beam2.854Draft1.979Displacement2,431Wetted area16.11IMS L8.438LSM08.128Acc. length8.957Sink (kg/mm) 12.15
VCGD-0.246VCGM-0.169RM Rated (kg·m) 50.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight512Declared crew weight340
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0006
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P11.230IG11.650ISP12.690MDT10.090MDL10.145MDT2MDL2TLMWGO
E3.660J3.440BAS1.300FSDSFJSPLWPLTPS5.600BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date29/08/2022
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03020003UVWIssued on 30/06/2025Valid until 30/06/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2025
JiyuuJ8800
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMS10.501.041.652.5626.34AMS Certificate 29714/21
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ10.500.931.803.5411.44NoNo 20.58AMS Certificate 29714/21
ORC Ref  03020003UVWIssued on 30/06/2025Valid until 30/06/2026
VPP ver: 2025 1.01 | © ORC | www.orc.org