International
Certificate
2023

Boat

FINAL FINAL

USA 2388

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 Angles42.4°39.4°38.7°38.1°37.6°37.6°37.6°
Beat VMG4.635.415.735.916.016.066.09
52°7.007.888.218.408.538.618.65
60°7.358.168.528.758.919.029.11
75°7.588.378.939.289.539.719.94
90°7.738.518.999.6210.1010.4410.93
110°7.598.579.4110.1210.6911.2512.18
120°7.268.369.2110.1411.1011.8813.24
135°6.357.868.769.7010.8512.0814.11
150°5.306.747.858.689.5210.5813.37
Run VMG4.595.846.807.538.249.1711.58
Gybe Angles141.5°145.1°150.1°151.4°148.7°146.5°145.1°

APH: 446.1

CDL: 11.821

GPH: 495.9

CertNo: US2388

BOAT
ClassMills 41DesignerMillsBuilderMcConaghyAge date01/2015Series date01/2015Offset fileMills41.offData fileUSA2388
HULL
Length Overall12.518 mMaximum Beam4.200 mDraft2.962 mDisplacement4,542 kgDLR3.5534IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.260%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.430m
CREW
Maximum weight755 kgMinimum weight566 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail60.6661.86Headsail Luffed46.4646.46Headsail FlyingSymmetricAsymmetric181.76181.76 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail16.45Storm Jib15.26Heavy Weather Jib41.20
SAIL LIMITS
Headsails7  Spinnakers5
STABILITY
Righting Moment180.3 kg·mStability Index129.4
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  04560002QECIssued on 18/07/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

FINAL FINAL

USA 2388

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 VMG778.1666.0627.9608.9598.6593.7591.3
52°514.3456.8438.6428.5422.1418.0416.0
60°489.8441.4422.7411.5404.2399.1395.0
75°474.8429.9403.1387.8377.9370.8362.1
90°465.7423.0400.3374.4356.5344.7329.5
110°474.4420.0382.4355.6336.8320.1295.6
120°496.2430.8391.0354.9324.2303.0271.8
135°567.3458.2411.0371.0331.7298.0255.2
150°679.6534.1458.7414.6378.3340.1269.2
Run VMG784.7616.7529.5478.0436.9392.7310.9
Selected Courses
Windward / Leeward781.4641.4578.7543.4517.8493.2451.1
All purpose596.9506.3464.3436.9416.2398.5371.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward557.41.0764
All purpose446.11.3451
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.9408
Downwind "popa"1.1833
70% up, 30% down "Ilhabela"1.0024
30% up, 70% down "Ilhabela-inverso"1.0984
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Predominantly Upwind489.21.2266
Predominantly Downwind445.21.3477
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low551.61.0878
Triple Number All Purpose Medium446.61.3434
Triple Number All Purpose High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Predominantly Upwind489.21.2266
Predominantly Downwind445.21.3477
Predominantly Upwind Low610.70.9824
Predominantly Upwind Medium513.51.1685
Predominantly Upwind High487.01.2320
Predominantly Downwind Low607.20.9881
Predominantly Downwind Medium445.51.3469
Predominantly Downwind High350.21.7135
Chicago-Mac Upwind1.2051
Chicago-Mac All Purpose1.2595
Chicago-Mac Downwind1.3201
Bayview-Mac Cove Island1.1911
Bayview-Mac Shore1.1972
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching418.01.4353
Predominantly Reaching Low499.51.2013
Predominantly Reaching Medium417.21.4383
Predominantly Reaching High356.41.6837
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low770.60.7786
5-Band Low / Medium659.40.9099
5-Band Medium548.91.0930
5-Band Medium / High494.51.2133
5-Band High458.41.3090
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance485.9
Triple Number Coastal/Long Distance Low551.6
Triple Number Coastal/Long Distance Medium446.6
Triple Number Coastal/Long Distance High392.9
Triple Number Windward/Leeward Low711.3
Triple Number Windward/Leeward Medium556.9
Triple Number Windward/Leeward High483.6
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0878
Triple Number Coastal/Long Distance Medium1.3434
Triple Number Coastal/Long Distance High1.5273
Triple Number Windward/Leeward Low0.8435
Triple Number Windward/Leeward Medium1.0774
Triple Number Windward/Leeward High1.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low551.6
Triple Number Coastal/Long Distance Medium446.6
Triple Number Coastal/Long Distance High392.9
Triple Number Windward/Leeward Low711.3
Triple Number Windward/Leeward Medium556.9
Triple Number Windward/Leeward High483.6
Predominantly Upwind489.2
Predominantly Downwind445.2
Predominantly Reaching426.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0878
Triple Number Coastal/Long Distance Medium1.3434
Triple Number Coastal/Long Distance High1.5273
Triple Number Windward/Leeward Low0.8435
Triple Number Windward/Leeward Medium1.0774
Triple Number Windward/Leeward High1.2408
Coastal/Long Distance1.2348
Predominantly Upwind1.2266
Predominantly Downwind1.3477
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind1.0878
Tretall Distanseseilas Mellomvind1.3434
Tretall Distanseseilas Mye vind1.5273
Tretall Pølsebane Lite vind0.8435
Tretall Pølsebane Mellomvind1.0774
Tretall Pølsebane Mye vind1.2408
Distanseseilas ett tall (OSN 8-16kn)1.2348
Distanseseilas ett tall (APH 6-20kn)1.3451
Enkeltall Motvind1.2266
Enkeltall Medvind1.3477
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Coastal/Long Distance485.91.2348
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind489.21.2266
Predominantly Downwind445.21.3477
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore463.71.2939
Cape Doctor Coastal379.71.5802
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0878
Triple Number Coastal/Long Distance Medium1.3434
Triple Number Coastal/Long Distance High1.5273
Triple Number Windward/Leeward Low0.8435
Triple Number Windward/Leeward Medium1.0774
Triple Number Windward/Leeward High1.2408
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0878
Triple Number Coastal/Long Distance Medium1.3434
Triple Number Coastal/Long Distance High1.5273
Triple Number Windward/Leeward Low0.8435
Triple Number Windward/Leeward Medium1.0774
Triple Number Windward/Leeward High1.2408
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Predominantly Upwind489.21.2266
Predominantly Downwind445.21.3477
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance485.91.2348
Triple Number Coastal/Long Distance Low551.61.0878
Triple Number Coastal/Long Distance Medium446.61.3434
Triple Number Coastal/Long Distance High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance781.7604.5522.6468.9433.0401.2349.8
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low551.61.0878
Triple Number All Purpose Medium446.61.3434
Triple Number All Purpose High392.91.5273
Triple Number Windward/Leeward Low711.30.8435
Triple Number Windward/Leeward Medium556.91.0774
Triple Number Windward/Leeward High483.61.2408
Predominantly Upwind489.21.2266
Predominantly Downwind445.21.3477
Predominantly Upwind Low610.70.9824
Predominantly Upwind Medium513.51.1685
Predominantly Upwind High487.01.2320
Predominantly Downwind Low607.20.9881
Predominantly Downwind Medium445.51.3469
Predominantly Downwind High350.21.7135
Chicago-Mac Upwind1.2051
Chicago-Mac All Purpose1.2595
Chicago-Mac Downwind1.3201
Bayview-Mac Cove Island1.1911
Bayview-Mac Shore1.1972
Harvest Moon Regatta373.21.6078
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy470.11.2764
San Francisco Bay Medium542.81.1054
Predominantly Reaching418.01.4353
Predominantly Reaching Low499.51.2013
Predominantly Reaching Medium417.21.4383
Predominantly Reaching High356.41.6837
Windward/Leeward 60-40 Low713.50.8409
Windward/Leeward 60-40 Medium577.51.0390
Windward/Leeward 60-40 High521.11.1513
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low770.60.7786
5-Band Low / Medium659.40.9099
5-Band Medium548.91.0930
5-Band Medium / High494.51.2133
5-Band High458.41.3090
ORC Ref  04560002QECIssued on 18/07/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

FINAL FINAL

USA 2388

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMills 41Measurement31/05/2023HINPlan reviewHull constructionCoredCarbon RudderYesLight stanchionsNoTrim tabNo
LOA12.518Max. Beam4.200Draft2.962Displacement4,542Wetted area28.81IMS L11.611LSM010.851Acc. length12.518Sink (kg/mm) 22.14
VCGD-0.467VCGM-0.438RM Rated (kg·m) 180.3Limit of positive stability(°) 133.3Stability Index129.4
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.430PBW0.070PIPA0.0036
EDL2.055ST10.050ST20.180
ST30.180ST40.112ST50.245
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2Rotating mastNo
P17.495IG17.450ISP19.315MDT10.132MDL10.257MDT20.082MDL20.166TL3.000MW0.245GO0.250
E5.370J4.975BAS1.690FSD0.037SFJ0.000SPLWPLTPS6.975BD0.260MWT192.85MCG6.083
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date31/05/2023MeasurerComment
SFFP0.650FFM1.526FF1.526LCFcl6.641SG1.0240
SAFP12.500FAM1.127FA1.128LCFsh6.915HBI1.361
W192.3W292.3W392.3W492.3
PD1494.3PD2494.3PD3494.3PD4494.3
WD12.305PLM9000.00GSA1.0RSA1.0RM180.9
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1CL poly fuel tankFuel4287.70-0.15Total deductible77.70-0.15
OTHER ITEMSIdKindDescriptionWeightLCGVCG2BatteryHouse battery7.90-0.151BatteryStarter battery7.80-0.153EngineYanmar 3YM30E7.300.00Total deductible
ORC Ref  04560002QECIssued on 18/07/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

International
Certificate
2023

Boat

FINAL FINAL

USA 2388

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMN-11.051.672.413.644.6460.6610/02/2023Q175532
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ1-20.120.831.532.783.955.0717.23YesNo 46.4610/06/2022J1-10.110.841.532.773.945.0517.26YesNo 46.4221/07/2022
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA221.2317.9019.5711.2410.78104%181.76From 2023 IRC certMH020.0718.9419.517.209.5176%124.5402/10/2020141553
ORC Ref  04560002QECIssued on 18/07/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org