Club
Certificate
2023

Boat

SPARROW

USA 60321

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 Angles43.6°41.8°40.2°39.6°39.3°38.8°38.8°
Beat VMG3.484.204.704.955.085.165.22
52°5.316.266.827.107.237.317.38
60°5.606.507.017.287.437.517.59
75°5.766.657.157.447.647.777.92
90°5.636.617.197.477.717.918.20
110°5.676.797.407.768.038.248.55
120°5.526.677.347.768.108.408.94
135°4.966.167.027.537.928.289.00
150°4.225.326.276.927.317.608.12
Run VMG3.654.615.435.996.336.767.52
Gybe Angles144.2°147.4°147.4°148.3°149.6°171.8°176.3°

APH: 560.7

CDL: 9.176

GPH: 627.3

CertNo: US6032

BOAT
ClassC&C 41WKDesignerC & CBuilderC & CAge date09/1988Series date06/1983Offset fileC&C41WK_JT.offData fileUSA60321
HULL
Length Overall12.472 mMaximum Beam3.950 mDraft1.858 mDisplacement7,818 kgDLR8.5592IMS DivisionCruiser/RacerDynamic Allowance0.240%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 3 bladesDiameter0.630m
CREW
Maximum weight817 kgMinimum weight613 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail35.9136.21Headsail Luffed56.7256.72Headsail FlyingSymmetricAsymmetric136.85136.85 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail11.26Storm Jib14.88Heavy Weather Jib40.16
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
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  04560002Q9WIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SPARROW

USA 60321

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 VMG1034.7857.7765.7727.3708.5697.8689.3
52°678.1575.2527.8506.9497.8492.6487.9
60°643.3553.6513.4494.4484.8479.6474.5
75°625.4541.3503.3483.8471.4463.2454.4
90°639.9544.8500.7481.9466.9455.4439.1
110°635.3530.0486.6464.2448.2437.0420.9
120°652.7540.0490.2464.0444.5428.4402.9
135°726.2584.6512.8478.2454.7434.7399.8
150°853.9676.7574.1520.1492.8473.9443.1
Run VMG986.0781.4662.9600.6569.0532.4478.6
Selected Courses
Windward / Leeward1010.4819.5714.3664.0638.8615.1584.0
All purpose780.8644.4574.6541.4522.9508.3488.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward693.00.8658
All purpose560.71.0702
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7663
Downwind "popa"0.9109
70% up, 30% down "Ilhabela"0.8046
30% up, 70% down "Ilhabela-inverso"0.8621
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Predominantly Upwind605.00.9917
Predominantly Downwind569.51.0536
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low712.60.8420
Triple Number All Purpose Medium556.41.0783
Triple Number All Purpose High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Predominantly Upwind605.00.9917
Predominantly Downwind569.51.0536
Predominantly Upwind Low793.80.7559
Predominantly Upwind Medium624.30.9610
Predominantly Upwind High584.11.0273
Predominantly Downwind Low776.50.7727
Predominantly Downwind Medium565.51.0610
Predominantly Downwind High485.71.2353
Chicago-Mac Upwind0.9749
Chicago-Mac All Purpose1.0029
Chicago-Mac Downwind1.0371
Bayview-Mac Cove Island0.9359
Bayview-Mac Shore0.9443
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching532.71.1262
Predominantly Reaching Low647.60.9265
Predominantly Reaching Medium526.01.1407
Predominantly Reaching High469.51.2780
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low995.70.6026
5-Band Low / Medium838.70.7154
5-Band Medium677.00.8862
5-Band Medium / High618.00.9708
5-Band High589.31.0181
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance610.4
Triple Number Coastal/Long Distance Low712.6
Triple Number Coastal/Long Distance Medium556.4
Triple Number Coastal/Long Distance High504.6
Triple Number Windward/Leeward Low914.9
Triple Number Windward/Leeward Medium687.4
Triple Number Windward/Leeward High609.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8420
Triple Number Coastal/Long Distance Medium1.0783
Triple Number Coastal/Long Distance High1.1891
Triple Number Windward/Leeward Low0.6558
Triple Number Windward/Leeward Medium0.8728
Triple Number Windward/Leeward High0.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low712.6
Triple Number Coastal/Long Distance Medium556.4
Triple Number Coastal/Long Distance High504.6
Triple Number Windward/Leeward Low914.9
Triple Number Windward/Leeward Medium687.4
Triple Number Windward/Leeward High609.3
Predominantly Upwind605.0
Predominantly Downwind569.5
Predominantly Reaching545.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8420
Triple Number Coastal/Long Distance Medium1.0783
Triple Number Coastal/Long Distance High1.1891
Triple Number Windward/Leeward Low0.6558
Triple Number Windward/Leeward Medium0.8728
Triple Number Windward/Leeward High0.9847
Coastal/Long Distance0.9829
Predominantly Upwind0.9917
Predominantly Downwind1.0536
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8420
Tretall Distanseseilas Mellomvind1.0783
Tretall Distanseseilas Mye vind1.1891
Tretall Pølsebane Lite vind0.6558
Tretall Pølsebane Mellomvind0.8728
Tretall Pølsebane Mye vind0.9847
Distanseseilas ett tall (OSN 8-16kn)0.9829
Distanseseilas ett tall (APH 6-20kn)1.0702
Enkeltall Motvind0.9917
Enkeltall Medvind1.0536
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Coastal/Long Distance610.40.9829
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind605.00.9917
Predominantly Downwind569.51.0536
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore593.31.0113
Cape Doctor Coastal494.61.2132
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8420
Triple Number Coastal/Long Distance Medium1.0783
Triple Number Coastal/Long Distance High1.1891
Triple Number Windward/Leeward Low0.6558
Triple Number Windward/Leeward Medium0.8728
Triple Number Windward/Leeward High0.9847
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8420
Triple Number Coastal/Long Distance Medium1.0783
Triple Number Coastal/Long Distance High1.1891
Triple Number Windward/Leeward Low0.6558
Triple Number Windward/Leeward Medium0.8728
Triple Number Windward/Leeward High0.9847
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Predominantly Upwind605.00.9917
Predominantly Downwind569.51.0536
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance610.40.9829
Triple Number Coastal/Long Distance Low712.60.8420
Triple Number Coastal/Long Distance Medium556.41.0783
Triple Number Coastal/Long Distance High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1007.9771.4645.6578.3543.1513.8468.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low712.60.8420
Triple Number All Purpose Medium556.41.0783
Triple Number All Purpose High504.61.1891
Triple Number Windward/Leeward Low914.90.6558
Triple Number Windward/Leeward Medium687.40.8728
Triple Number Windward/Leeward High609.30.9847
Predominantly Upwind605.00.9917
Predominantly Downwind569.51.0536
Predominantly Upwind Low793.80.7559
Predominantly Upwind Medium624.30.9610
Predominantly Upwind High584.11.0273
Predominantly Downwind Low776.50.7727
Predominantly Downwind Medium565.51.0610
Predominantly Downwind High485.71.2353
Chicago-Mac Upwind0.9749
Chicago-Mac All Purpose1.0029
Chicago-Mac Downwind1.0371
Bayview-Mac Cove Island0.9359
Bayview-Mac Shore0.9443
Harvest Moon Regatta491.11.2216
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy592.81.0122
San Francisco Bay Medium676.20.8874
Predominantly Reaching532.71.1262
Predominantly Reaching Low647.60.9265
Predominantly Reaching Medium526.01.1407
Predominantly Reaching High469.51.2780
Windward/Leeward 60-40 Low921.20.6513
Windward/Leeward 60-40 Medium707.50.8481
Windward/Leeward 60-40 High639.30.9386
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low995.70.6026
5-Band Low / Medium838.70.7154
5-Band Medium677.00.8862
5-Band Medium / High618.00.9708
5-Band High589.31.0181
ORC Ref  04560002Q9WIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SPARROW

USA 60321

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassC&C 41WKMeasurement21/07/2021HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA12.472Max. Beam3.950Draft1.858Displacement7,818Wetted area31.67IMS L9.923LSM09.702Acc. length12.472Sink (kg/mm) 21.17
VCGD0.020VCGM0.044RM Rated (kg·m) 161.6Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.630PBW0.044PIPA0.0038
PSD0.031PHD0.049PHL0.125
PSA20.0°ESL0.845
ST10.040ST20.113ST30.144
ST40.049ST50.000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P14.994IG17.164ISP17.225MDT10.122MDL10.205MDT20.119MDL20.168TL2.372MW0.159GO0.183
E4.289J4.993BAS1.851FSD0.021SFJ0.092SPLWPLTPS4.992BD0.180MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date21/07/2021MeasurerComment
SFFP0.893FFMFF1.283LCFcl6.694SG1.0000
SAFP11.323FAMFA1.083LCFsh6.975HBI1.111
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002Q9WIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SPARROW

USA 60321

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.170.761.392.523.4535.9119/04/2022
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentGenoa0.080.821.603.285.107.0416.70NoNo 56.7225/05/2022
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA218.9615.3617.169.798.69113%136.8525/05/2022Cruise A16.9115.5816.257.898.1197%107.4118/04/2022
ORC Ref  04560002Q9WIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org