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 VMG4.625.395.725.906.006.056.07
52°6.987.868.198.388.518.598.63
60°7.338.148.508.738.899.009.09
75°7.568.368.919.269.519.699.92
90°7.458.308.979.5910.0810.4210.90
110°7.228.339.019.5210.0010.5912.15
120°7.038.299.179.8910.5111.1312.33
135°6.337.848.749.6810.8312.0513.89
150°5.296.737.838.669.4910.5613.34
Run VMG4.585.826.787.518.229.1511.55
Gybe Angles141.5°145.1°150.1°151.4°148.7°146.5°145.1°

APH: 449.5

CDL: 11.793

GPH: 499.9

CertNo: US2388

BOAT
ClassMills 41DesignerMillsBuilderMcConaghyAge date01/2015Series date11/2008Offset fileMills41.offData fileUSA2388
HULL
Length Overall12.518 mMaximum Beam4.200 mDraft2.962 mDisplacement4,542 kgDLR3.5534IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
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 (All asymmetric spinnakers 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  04560002Q9JIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © 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 VMG779.8667.5629.3610.2600.0595.0592.6
52°515.5457.9439.6429.5423.1418.9416.9
60°490.9442.4423.6412.4405.1400.0395.9
75°475.9430.9404.1388.7378.7371.7362.9
90°483.2433.6401.4375.3357.3345.5330.3
110°498.3432.0399.5378.2360.0340.1296.3
120°511.7434.4392.7364.0342.5323.3292.0
135°568.6459.3412.0371.9332.4298.7259.1
150°681.1535.3459.7415.5379.2340.9269.9
Run VMG786.5618.1530.7479.1437.9393.6311.6
Selected Courses
Windward / Leeward783.1642.8580.0544.7518.9494.3452.1
All purpose602.8509.5466.9440.4420.2402.3373.8
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward558.71.0740
All purpose449.51.3347
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.9386
Downwind "popa"1.1806
70% up, 30% down "Ilhabela"1.0001
30% up, 70% down "Ilhabela-inverso"1.0959
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Predominantly Upwind490.71.2226
Predominantly Downwind446.71.3432
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low556.21.0788
Triple Number All Purpose Medium449.91.3336
Triple Number All Purpose High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Predominantly Upwind490.71.2226
Predominantly Downwind446.71.3432
Predominantly Upwind Low613.40.9781
Predominantly Upwind Medium514.71.1658
Predominantly Upwind High488.11.2291
Predominantly Downwind Low609.90.9837
Predominantly Downwind Medium446.51.3437
Predominantly Downwind High351.41.7076
Chicago-Mac Upwind1.2015
Chicago-Mac All Purpose1.2556
Chicago-Mac Downwind1.3159
Bayview-Mac Cove Island1.1835
Bayview-Mac Shore1.1910
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching420.11.4281
Predominantly Reaching Low505.01.1882
Predominantly Reaching Medium418.81.4325
Predominantly Reaching High357.51.6783
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low772.30.7769
5-Band Low / Medium660.90.9078
5-Band Medium550.21.0905
5-Band Medium / High495.61.2106
5-Band High459.41.3060
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance488.8
Triple Number Coastal/Long Distance Low556.2
Triple Number Coastal/Long Distance Medium449.9
Triple Number Coastal/Long Distance High396.1
Triple Number Windward/Leeward Low713.0
Triple Number Windward/Leeward Medium558.2
Triple Number Windward/Leeward High484.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0788
Triple Number Coastal/Long Distance Medium1.3336
Triple Number Coastal/Long Distance High1.5149
Triple Number Windward/Leeward Low0.8415
Triple Number Windward/Leeward Medium1.0749
Triple Number Windward/Leeward High1.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low556.2
Triple Number Coastal/Long Distance Medium449.9
Triple Number Coastal/Long Distance High396.1
Triple Number Windward/Leeward Low713.0
Triple Number Windward/Leeward Medium558.2
Triple Number Windward/Leeward High484.7
Predominantly Upwind490.7
Predominantly Downwind446.7
Predominantly Reaching428.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0788
Triple Number Coastal/Long Distance Medium1.3336
Triple Number Coastal/Long Distance High1.5149
Triple Number Windward/Leeward Low0.8415
Triple Number Windward/Leeward Medium1.0749
Triple Number Windward/Leeward High1.2380
Coastal/Long Distance1.2276
Predominantly Upwind1.2226
Predominantly Downwind1.3432
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind1.0788
Tretall Distanseseilas Mellomvind1.3336
Tretall Distanseseilas Mye vind1.5149
Tretall Pølsebane Lite vind0.8415
Tretall Pølsebane Mellomvind1.0749
Tretall Pølsebane Mye vind1.2380
Distanseseilas ett tall (OSN 8-16kn)1.2276
Distanseseilas ett tall (APH 6-20kn)1.3347
Enkeltall Motvind1.2226
Enkeltall Medvind1.3432
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Coastal/Long Distance488.81.2276
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind490.71.2226
Predominantly Downwind446.71.3432
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore464.81.2909
Cape Doctor Coastal382.41.5692
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0788
Triple Number Coastal/Long Distance Medium1.3336
Triple Number Coastal/Long Distance High1.5149
Triple Number Windward/Leeward Low0.8415
Triple Number Windward/Leeward Medium1.0749
Triple Number Windward/Leeward High1.2380
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0788
Triple Number Coastal/Long Distance Medium1.3336
Triple Number Coastal/Long Distance High1.5149
Triple Number Windward/Leeward Low0.8415
Triple Number Windward/Leeward Medium1.0749
Triple Number Windward/Leeward High1.2380
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Predominantly Upwind490.71.2226
Predominantly Downwind446.71.3432
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance488.81.2276
Triple Number Coastal/Long Distance Low556.21.0788
Triple Number Coastal/Long Distance Medium449.91.3336
Triple Number Coastal/Long Distance High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance783.5606.5523.9471.3437.1406.0355.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low556.21.0788
Triple Number All Purpose Medium449.91.3336
Triple Number All Purpose High396.11.5149
Triple Number Windward/Leeward Low713.00.8415
Triple Number Windward/Leeward Medium558.21.0749
Triple Number Windward/Leeward High484.71.2380
Predominantly Upwind490.71.2226
Predominantly Downwind446.71.3432
Predominantly Upwind Low613.40.9781
Predominantly Upwind Medium514.71.1658
Predominantly Upwind High488.11.2291
Predominantly Downwind Low609.90.9837
Predominantly Downwind Medium446.51.3437
Predominantly Downwind High351.41.7076
Chicago-Mac Upwind1.2015
Chicago-Mac All Purpose1.2556
Chicago-Mac Downwind1.3159
Bayview-Mac Cove Island1.1835
Bayview-Mac Shore1.1910
Harvest Moon Regatta378.31.5862
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy472.01.2712
San Francisco Bay Medium544.41.1021
Predominantly Reaching420.11.4281
Predominantly Reaching Low505.01.1882
Predominantly Reaching Medium418.81.4325
Predominantly Reaching High357.51.6783
Windward/Leeward 60-40 Low715.10.8390
Windward/Leeward 60-40 Medium578.81.0366
Windward/Leeward 60-40 High522.31.1487
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low772.30.7769
5-Band Low / Medium660.90.9078
5-Band Medium550.21.0905
5-Band Medium / High495.61.2106
5-Band High459.41.3060
ORC Ref  04560002Q9JIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © 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  04560002Q9JIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © 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.DateComment021.2317.9019.5711.2410.78104%181.76From 2023 IRC cert
ORC Ref  04560002Q9JIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org