Club
Certificate
2023

Boat

MI-2

USA 57

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 Angles42.7°40.6°38.2°37.2°37.0°37.0°37.8°
Beat VMG3.494.264.734.914.995.035.03
52°5.276.226.686.866.957.017.06
60°5.536.426.857.067.177.257.33
75°5.916.696.997.307.517.657.83
90°6.106.897.297.557.777.998.37
110°5.916.887.387.878.298.689.34
120°5.786.837.447.948.378.8510.05
135°5.166.417.167.828.529.2711.29
150°4.375.536.477.117.628.2110.12
Run VMG3.794.795.606.166.607.118.77
Gybe Angles144.2°147.8°148.9°149.6°147.4°145.0°141.8°

APH: 554.3

CDL: 8.448

GPH: 618.7

CertNo: US6536

BOAT
ClassJ 88DesignerJohnstoneBuilderJ BoatsAge date01/2014Series date01/2014Offset fileJ88.offData fileUS6536
HULL
Length Overall8.960 mMaximum Beam2.854 mDraft1.961 mDisplacement2,390 kgDLR4.2526IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.292%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight503 kgMinimum weight377 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail26.8527.56Headsail Luffed20.9220.92Headsail FlyingSymmetricAsymmetric94.0094.00 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail7.20Storm Jib7.00Heavy Weather Jib18.89
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment51.8 kg·mStability Index116.8
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  03330002JHPIssued on 26/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MI-2

USA 57

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 VMG1031.7845.6760.5733.1721.4715.6716.0
52°682.5578.7538.9524.5517.6513.4510.0
60°651.4560.9525.9510.2502.0496.6491.1
75°609.5538.1514.9493.3479.3470.4460.0
90°590.6522.6493.8476.8463.6450.4430.1
110°608.8523.3488.1457.3434.3414.9385.5
120°623.2526.8483.8453.4430.1406.8358.3
135°697.9562.0502.7460.3422.6388.5318.8
150°822.9651.1556.5506.2472.6438.5355.6
Run VMG950.3751.8642.6584.6545.8506.4410.6
Selected Courses
Windward / Leeward991.0798.7701.5658.8633.6611.0563.3
All purpose761.0630.8570.2539.5519.0501.2467.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward683.40.8780
All purpose554.31.0824
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7603
Downwind "popa"0.9563
70% up, 30% down "Ilhabela"0.8101
30% up, 70% down "Ilhabela-inverso"0.8877
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Predominantly Upwind604.70.9923
Predominantly Downwind553.01.0850
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low695.90.8622
Triple Number All Purpose Medium552.21.0866
Triple Number All Purpose High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Predominantly Upwind604.70.9923
Predominantly Downwind553.01.0850
Predominantly Upwind Low781.80.7675
Predominantly Upwind Medium628.60.9545
Predominantly Upwind High596.71.0055
Predominantly Downwind Low751.50.7984
Predominantly Downwind Medium549.11.0928
Predominantly Downwind High448.51.3378
Chicago-Mac Upwind0.9766
Chicago-Mac All Purpose1.0182
Chicago-Mac Downwind1.0672
Bayview-Mac Cove Island0.9492
Bayview-Mac Shore0.9529
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching522.21.1491
Predominantly Reaching Low625.80.9588
Predominantly Reaching Medium517.51.1594
Predominantly Reaching High452.71.3255
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low976.20.6146
5-Band Low / Medium821.00.7308
5-Band Medium669.30.8965
5-Band Medium / High610.80.9824
5-Band High571.61.0498
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance602.8
Triple Number Coastal/Long Distance Low695.9
Triple Number Coastal/Long Distance Medium552.2
Triple Number Coastal/Long Distance High493.1
Triple Number Windward/Leeward Low894.9
Triple Number Windward/Leeward Medium678.4
Triple Number Windward/Leeward High598.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8622
Triple Number Coastal/Long Distance Medium1.0866
Triple Number Coastal/Long Distance High1.2168
Triple Number Windward/Leeward Low0.6705
Triple Number Windward/Leeward Medium0.8844
Triple Number Windward/Leeward High1.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low695.9
Triple Number Coastal/Long Distance Medium552.2
Triple Number Coastal/Long Distance High493.1
Triple Number Windward/Leeward Low894.9
Triple Number Windward/Leeward Medium678.4
Triple Number Windward/Leeward High598.7
Predominantly Upwind604.7
Predominantly Downwind553.0
Predominantly Reaching531.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8622
Triple Number Coastal/Long Distance Medium1.0866
Triple Number Coastal/Long Distance High1.2168
Triple Number Windward/Leeward Low0.6705
Triple Number Windward/Leeward Medium0.8844
Triple Number Windward/Leeward High1.0021
Coastal/Long Distance0.9953
Predominantly Upwind0.9923
Predominantly Downwind1.0850
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8622
Tretall Distanseseilas Mellomvind1.0866
Tretall Distanseseilas Mye vind1.2168
Tretall Pølsebane Lite vind0.6705
Tretall Pølsebane Mellomvind0.8844
Tretall Pølsebane Mye vind1.0021
Distanseseilas ett tall (OSN 8-16kn)0.9953
Distanseseilas ett tall (APH 6-20kn)1.0824
Enkeltall Motvind0.9923
Enkeltall Medvind1.0850
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Coastal/Long Distance602.80.9953
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind604.70.9923
Predominantly Downwind553.01.0850
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore577.61.0388
Cape Doctor Coastal477.81.2559
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8622
Triple Number Coastal/Long Distance Medium1.0866
Triple Number Coastal/Long Distance High1.2168
Triple Number Windward/Leeward Low0.6705
Triple Number Windward/Leeward Medium0.8844
Triple Number Windward/Leeward High1.0021
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8622
Triple Number Coastal/Long Distance Medium1.0866
Triple Number Coastal/Long Distance High1.2168
Triple Number Windward/Leeward Low0.6705
Triple Number Windward/Leeward Medium0.8844
Triple Number Windward/Leeward High1.0021
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Predominantly Upwind604.70.9923
Predominantly Downwind553.01.0850
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.80.9953
Triple Number Coastal/Long Distance Low695.90.8622
Triple Number Coastal/Long Distance Medium552.21.0866
Triple Number Coastal/Long Distance High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance986.9752.0636.5575.8540.5507.8446.6
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low695.90.8622
Triple Number All Purpose Medium552.21.0866
Triple Number All Purpose High493.11.2168
Triple Number Windward/Leeward Low894.90.6705
Triple Number Windward/Leeward Medium678.40.8844
Triple Number Windward/Leeward High598.71.0021
Predominantly Upwind604.70.9923
Predominantly Downwind553.01.0850
Predominantly Upwind Low781.80.7675
Predominantly Upwind Medium628.60.9545
Predominantly Upwind High596.71.0055
Predominantly Downwind Low751.50.7984
Predominantly Downwind Medium549.11.0928
Predominantly Downwind High448.51.3378
Chicago-Mac Upwind0.9766
Chicago-Mac All Purpose1.0182
Chicago-Mac Downwind1.0672
Bayview-Mac Cove Island0.9492
Bayview-Mac Shore0.9529
Harvest Moon Regatta476.91.2580
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy581.41.0320
San Francisco Bay Medium665.90.9010
Predominantly Reaching522.21.1491
Predominantly Reaching Low625.80.9588
Predominantly Reaching Medium517.51.1594
Predominantly Reaching High452.71.3255
Windward/Leeward 60-40 Low903.60.6640
Windward/Leeward 60-40 Medium702.30.8543
Windward/Leeward 60-40 High639.10.9389
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low976.20.6146
5-Band Low / Medium821.00.7308
5-Band Medium669.30.8965
5-Band Medium / High610.80.9824
5-Band High571.61.0498
ORC Ref  03330002JHPIssued on 26/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MI-2

USA 57

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ 88Measurement14/05/2020HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.960Max. Beam2.854Draft1.961Displacement2,390Wetted area16.34IMS L8.597LSM08.251Acc. length8.960Sink (kg/mm) 12.52
VCGD-0.248VCGM-0.159RM Rated (kg·m) 51.8Limit of positive stability(°) 121.0Stability Index116.8
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBW0.110PIPA0.0039
EDL2.200ST10.065ST20.180
ST30.180ST40.110ST50.375
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P11.227IG11.787ISP12.695MDT10.095MDL10.145MDT20.085MDL20.103TL1.940MW0.158GO0.170
E3.660J3.440BAS1.304FSDSFJ0.210SPLWPLTPS5.520BD0.104MWT73.50MCG4.486
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date14/05/2020MeasurerComment
SFFP0.759FFM1.007FF1.014LCFcl4.926SG1.0060
SAFP8.905FAM0.749FA0.750LCFsh5.131HBI0.867
W153.4W253.4W353.4W453.4LCFD4.575
PD1285.9PD2286.3PD3286.3PD4285.0
WD3.485PLM9000.00GSA1.0RSA1.0RM51.3
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG0.900040.000.00Total deductible40.000.00
OTHER ITEMSIdKindDescriptionWeightLCGVCGaAnchor00.00Total deductible0
ORC Ref  03330002JHPIssued on 26/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MI-2

USA 57

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment19M0.441.071.712.613.2026.8507/06/2019MAINSAIL
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment149560.000.000.941.852.743.6111.37NoNo 20.9229/01/2021HEADSAIL
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment294601914.8712.1613.528.308.5397%94.00A2 SPIN14965513.5512.0012.784.646.1775%52.65code zero
ORC Ref  03330002JHPIssued on 26/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org