International
Certificate
2023

Boat

TOWHEE

USA 1781

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 Angles44.4°42.6°41.4°40.6°39.9°39.4°39.4°
Beat VMG3.283.974.474.774.925.005.08
52°5.055.986.586.917.057.147.22
60°5.356.246.787.097.257.337.42
75°5.546.406.937.257.467.607.76
90°5.436.366.947.317.557.768.07
110°5.256.367.067.477.798.068.47
120°5.106.236.987.437.798.118.69
135°4.615.746.617.177.577.938.62
150°3.915.005.946.697.197.568.23
Run VMG3.384.335.155.876.476.997.70
Gybe Angles146.0°149.8°152.3°157.4°166.4°176.3°179.0°

APH: 581.5

CDL: 8.665

GPH: 654.4

CertNo: US6801

BOAT
ClassCAL 40DesignerLAPWORTHBuilderCALAge date01/1967Series date01/1963Offset filecal-40.offData fileUS6801
HULL
Length Overall11.912 mMaximum Beam3.322 mDraft1.762 mDisplacement6,962 kgDLR8.8871IMS DivisionCruiser/RacerDynamic Allowance0.240%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 3 bladesDiameter0.426m
CREW
Maximum weight647 kgMinimum weight485 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail37.9339.32Headsail Luffed48.9948.99Headsail FlyingSymmetric96.5696.56Asymmetric82.3682.36 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail11.40Storm Jib10.16Heavy Weather Jib27.42
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric may be tacked on the pole
STABILITY
Righting Moment174.8 kg·mStability Index124.5
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  04560002LVFIssued on 16/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

TOWHEE

USA 1781

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 VMG1097.0907.1804.7755.2732.2719.7709.0
52°712.9602.3547.1521.2510.5504.5498.9
60°673.3577.2530.8507.8496.8490.9484.9
75°650.0562.1519.6496.7482.5473.5463.6
90°662.9566.4519.0492.7476.7463.7445.9
110°685.9566.2510.2481.8462.1446.9424.8
120°706.1578.3516.1484.4462.2444.1414.2
135°781.6627.1544.5501.8475.5454.1417.7
150°921.2719.4606.1538.0500.5476.2437.6
Run VMG1063.8830.6698.6612.8556.1515.0467.4
Selected Courses
Windward / Leeward1080.4868.8751.7684.0644.2617.3588.2
All purpose830.8681.3602.4559.3534.6518.0496.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward716.40.8375
All purpose581.51.0318
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7336
Downwind "popa"0.8853
70% up, 30% down "Ilhabela"0.7734
30% up, 70% down "Ilhabela-inverso"0.8336
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Predominantly Upwind628.70.9543
Predominantly Downwind591.41.0145
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low756.00.7936
Triple Number All Purpose Medium577.61.0387
Triple Number All Purpose High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Predominantly Upwind628.70.9543
Predominantly Downwind591.41.0145
Predominantly Upwind Low840.00.7143
Predominantly Upwind Medium648.30.9255
Predominantly Upwind High599.51.0009
Predominantly Downwind Low827.80.7248
Predominantly Downwind Medium586.21.0236
Predominantly Downwind High487.31.2313
Chicago-Mac Upwind0.9364
Chicago-Mac All Purpose0.9628
Chicago-Mac Downwind0.9956
Bayview-Mac Cove Island0.8930
Bayview-Mac Shore0.9023
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching552.61.0857
Predominantly Reaching Low684.30.8767
Predominantly Reaching Medium547.41.0962
Predominantly Reaching High481.81.2452
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1064.10.5638
5-Band Low / Medium889.00.6749
5-Band Medium698.40.8591
5-Band Medium / High622.60.9637
5-Band High593.21.0114
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance633.8
Triple Number Coastal/Long Distance Low756.0
Triple Number Coastal/Long Distance Medium577.6
Triple Number Coastal/Long Distance High514.1
Triple Number Windward/Leeward Low974.7
Triple Number Windward/Leeward Medium712.0
Triple Number Windward/Leeward High613.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7936
Triple Number Coastal/Long Distance Medium1.0387
Triple Number Coastal/Long Distance High1.1670
Triple Number Windward/Leeward Low0.6156
Triple Number Windward/Leeward Medium0.8427
Triple Number Windward/Leeward High0.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low756.0
Triple Number Coastal/Long Distance Medium577.6
Triple Number Coastal/Long Distance High514.1
Triple Number Windward/Leeward Low974.7
Triple Number Windward/Leeward Medium712.0
Triple Number Windward/Leeward High613.1
Predominantly Upwind628.7
Predominantly Downwind591.4
Predominantly Reaching566.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7936
Triple Number Coastal/Long Distance Medium1.0387
Triple Number Coastal/Long Distance High1.1670
Triple Number Windward/Leeward Low0.6156
Triple Number Windward/Leeward Medium0.8427
Triple Number Windward/Leeward High0.9786
Coastal/Long Distance0.9467
Predominantly Upwind0.9543
Predominantly Downwind1.0145
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7936
Tretall Distanseseilas Mellomvind1.0387
Tretall Distanseseilas Mye vind1.1670
Tretall Pølsebane Lite vind0.6156
Tretall Pølsebane Mellomvind0.8427
Tretall Pølsebane Mye vind0.9786
Distanseseilas ett tall (OSN 8-16kn)0.9467
Distanseseilas ett tall (APH 6-20kn)1.0318
Enkeltall Motvind0.9543
Enkeltall Medvind1.0145
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Coastal/Long Distance633.80.9467
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind628.70.9543
Predominantly Downwind591.41.0145
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore596.91.0051
Cape Doctor Coastal503.01.1927
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7936
Triple Number Coastal/Long Distance Medium1.0387
Triple Number Coastal/Long Distance High1.1670
Triple Number Windward/Leeward Low0.6156
Triple Number Windward/Leeward Medium0.8427
Triple Number Windward/Leeward High0.9786
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7936
Triple Number Coastal/Long Distance Medium1.0387
Triple Number Coastal/Long Distance High1.1670
Triple Number Windward/Leeward Low0.6156
Triple Number Windward/Leeward Medium0.8427
Triple Number Windward/Leeward High0.9786
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Predominantly Upwind628.70.9543
Predominantly Downwind591.41.0145
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.80.9467
Triple Number Coastal/Long Distance Low756.00.7936
Triple Number Coastal/Long Distance Medium577.61.0387
Triple Number Coastal/Long Distance High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1078.7817.1678.0597.3555.1523.4475.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low756.00.7936
Triple Number All Purpose Medium577.61.0387
Triple Number All Purpose High514.11.1670
Triple Number Windward/Leeward Low974.70.6156
Triple Number Windward/Leeward Medium712.00.8427
Triple Number Windward/Leeward High613.10.9786
Predominantly Upwind628.70.9543
Predominantly Downwind591.41.0145
Predominantly Upwind Low840.00.7143
Predominantly Upwind Medium648.30.9255
Predominantly Upwind High599.51.0009
Predominantly Downwind Low827.80.7248
Predominantly Downwind Medium586.21.0236
Predominantly Downwind High487.31.2313
Chicago-Mac Upwind0.9364
Chicago-Mac All Purpose0.9628
Chicago-Mac Downwind0.9956
Bayview-Mac Cove Island0.8930
Bayview-Mac Shore0.9023
Harvest Moon Regatta503.91.1907
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy602.90.9951
San Francisco Bay Medium705.70.8502
Predominantly Reaching552.61.0857
Predominantly Reaching Low684.30.8767
Predominantly Reaching Medium547.41.0962
Predominantly Reaching High481.81.2452
Windward/Leeward 60-40 Low980.10.6122
Windward/Leeward 60-40 Medium734.70.8167
Windward/Leeward 60-40 High649.10.9244
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1064.10.5638
5-Band Low / Medium889.00.6749
5-Band Medium698.40.8591
5-Band Medium / High622.60.9637
5-Band High593.21.0114
ORC Ref  04560002LVFIssued on 16/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

TOWHEE

USA 1781

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassCAL 40Measurement14/09/2018HINPlan reviewHull constructionSolidCarbon RudderYesLight stanchionsNoTrim tabNo
LOA11.912Max. Beam3.322Draft1.762Displacement6,962Wetted area29.90IMS L9.510LSM09.218Acc. length10.797Sink (kg/mm) 20.44
VCGD-0.165VCGM-0.097RM Rated (kg·m) 174.8Limit of positive stability(°) 118.3Stability Index124.5
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.426PBW0.155PIPA0.0054
PSD0.031PHD0.055PHL0.130
PSA18.0°ESL0.959
ST10.017ST20.080ST30.089
ST40.061ST52.380
RIG
Forestay tensionAftInner stayAdjustableCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders1Rotating mastNo
P12.207IG14.044ISP14.099MDT10.130MDL10.262MDT20.130MDL20.182TL1.987MW0.195GO0.262
E5.335J4.600BAS1.344FSD0.000SFJ0.000SPL4.763WPLTPS0.000BD0.195MWT191.00MCG4.698
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date14/09/2018MeasurerComment
SFFP0.465FFM1.342FF1.345LCFcl6.351SG1.0170
SAFP11.755FAM0.902FA0.905LCFsh6.567HBI1.016
W1116.5W2116.5W3116.5W4116.5
PD1628.6PD2628.6PD3628.6PD4628.6
WD11.910PLM9000.00GSA1.0RSA1.0RM173.8
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002LVFIssued on 16/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

TOWHEE

USA 1781

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment28782960.151.041.903.344.4437.932020 MEASURED MAINSAIL
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment28783060.080.901.733.455.287.1713.89NoNo 48.992019 medium-heavy genoa
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment287831814.0914.0914.098.268.0896.56S4 SPINNAKER
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentOUS139166-00113.8912.5313.217.417.7795%82.3626/06/2020
ORC Ref  04560002LVFIssued on 16/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org