Club
Certificate
2023

Boat

BOOMERANG

USA 9680

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°41.5°40.6°39.6°39.4°39.0°
Beat VMG3.334.014.524.814.965.055.13
52°5.116.036.626.957.097.177.25
60°5.416.286.827.127.277.367.45
75°5.606.456.967.277.487.627.79
90°5.506.416.977.327.577.798.10
110°5.216.317.027.447.778.038.40
120°5.066.176.937.397.758.078.64
135°4.595.706.557.127.527.878.55
150°3.904.995.906.647.147.518.17
Run VMG3.384.325.135.836.436.957.66
Gybe Angles146.0°150.2°153.2°157.4°167.6°177.2°179.0°

APH: 580.5

CDL: 8.738

GPH: 652.8

CertNo: US6356

BOAT
ClassCAL 40DesignerLAPWORTH, WMBuilderJENSENAge date04/1971Series date11/1963Offset filecal-40.offData fileUS6356
HULL
Length Overall11.964 mMaximum Beam3.322 mDraft1.752 mDisplacement6,998 kgDLR8.9819IMS DivisionCruiser/RacerDynamic Allowance0.230%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.458m
CREW
Maximum weight650 kgMinimum weight488 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail38.1639.33Headsail Luffed51.6551.65Headsail FlyingSymmetric87.3687.36Asymmetric
STORM SAIL AREAS (m²)
Trysail11.39Storm Jib10.15Heavy Weather Jib27.39
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.

Club
Certificate
2023

Boat

BOOMERANG

USA 9680

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 VMG1081.6897.4797.1748.1725.3713.0702.4
52°704.1596.9543.4518.3507.9502.1496.7
60°665.8572.8528.1505.7494.9489.1483.1
75°642.8558.4517.6495.2481.1472.2462.3
90°654.4561.9516.7492.1475.3462.4444.6
110°691.1570.6513.0483.6463.5448.4428.4
120°710.8583.3519.6487.1464.4445.9416.7
135°784.1631.6549.6505.5478.8457.3420.9
150°922.5721.3610.0542.5503.9479.2440.7
Run VMG1065.2832.7702.2617.8559.7517.9469.8
Selected Courses
Windward / Leeward1073.4865.1749.7683.0642.5615.5586.1
All purpose826.1679.3601.6558.8533.8517.2496.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward714.40.8399
All purpose580.51.0336
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7414
Downwind "popa"0.8814
70% up, 30% down "Ilhabela"0.7785
30% up, 70% down "Ilhabela-inverso"0.8341
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Predominantly Upwind625.50.9593
Predominantly Downwind592.61.0126
Custom scoring options for Canada
Scoring OptionTime On
Distance
Time On
Time
Triple Number All Purpose Low752.70.7971
Triple Number All Purpose Medium576.91.0401
Triple Number All Purpose High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Predominantly Upwind625.50.9593
Predominantly Downwind592.61.0126
Predominantly Upwind Low832.50.7207
Predominantly Upwind Medium643.70.9322
Predominantly Upwind High595.51.0076
Predominantly Downwind Low826.80.7257
Predominantly Downwind Medium589.01.0187
Predominantly Downwind High489.21.2264
Chicago-Mac Upwind0.9415
Chicago-Mac All Purpose0.9648
Chicago-Mac Downwind0.9939
Bayview-Mac Cove Island0.8963
Bayview-Mac Shore0.9065
Scoring OptionTime On
Distance
Time On
Time
Predominantly Reaching552.01.0870
Predominantly Reaching Low681.50.8804
Predominantly Reaching Medium547.31.0963
Predominantly Reaching High481.81.2452
5-Band
Windward/Leeward
Time On
Distance
Time On
Time
5-Band Low1057.40.5674
5-Band Low / Medium884.90.6780
5-Band Medium696.80.8610
5-Band Medium / High620.80.9665
5-Band High591.21.0149
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance632.5
Triple Number Coastal/Long Distance Low752.7
Triple Number Coastal/Long Distance Medium576.9
Triple Number Coastal/Long Distance High513.4
Triple Number Windward/Leeward Low969.3
Triple Number Windward/Leeward Medium710.2
Triple Number Windward/Leeward High611.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7971
Triple Number Coastal/Long Distance Medium1.0401
Triple Number Coastal/Long Distance High1.1687
Triple Number Windward/Leeward Low0.6190
Triple Number Windward/Leeward Medium0.8448
Triple Number Windward/Leeward High0.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low752.7
Triple Number Coastal/Long Distance Medium576.9
Triple Number Coastal/Long Distance High513.4
Triple Number Windward/Leeward Low969.3
Triple Number Windward/Leeward Medium710.2
Triple Number Windward/Leeward High611.2
Predominantly Upwind625.5
Predominantly Downwind592.6
Predominantly Reaching566.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7971
Triple Number Coastal/Long Distance Medium1.0401
Triple Number Coastal/Long Distance High1.1687
Triple Number Windward/Leeward Low0.6190
Triple Number Windward/Leeward Medium0.8448
Triple Number Windward/Leeward High0.9817
Coastal/Long Distance0.9487
Predominantly Upwind0.9593
Predominantly Downwind1.0126
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7971
Tretall Distanseseilas Mellomvind1.0401
Tretall Distanseseilas Mye vind1.1687
Tretall Pølsebane Lite vind0.6190
Tretall Pølsebane Mellomvind0.8448
Tretall Pølsebane Mye vind0.9817
Distanseseilas ett tall (OSN 8-16kn)0.9487
Distanseseilas ett tall (APH 6-20kn)1.0336
Enkeltall Motvind0.9593
Enkeltall Medvind1.0126
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Coastal/Long Distance632.50.9487
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind625.50.9593
Predominantly Downwind592.61.0126
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore594.91.0086
Cape Doctor Coastal502.41.1944
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7971
Triple Number Coastal/Long Distance Medium1.0401
Triple Number Coastal/Long Distance High1.1687
Triple Number Windward/Leeward Low0.6190
Triple Number Windward/Leeward Medium0.8448
Triple Number Windward/Leeward High0.9817
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7971
Triple Number Coastal/Long Distance Medium1.0401
Triple Number Coastal/Long Distance High1.1687
Triple Number Windward/Leeward Low0.6190
Triple Number Windward/Leeward Medium0.8448
Triple Number Windward/Leeward High0.9817
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Predominantly Upwind625.50.9593
Predominantly Downwind592.61.0126
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.50.9487
Triple Number Coastal/Long Distance Low752.70.7971
Triple Number Coastal/Long Distance Medium576.91.0401
Triple Number Coastal/Long Distance High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1072.6814.0676.6596.6554.2522.6475.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance
Time On
Time
Triple Number All Purpose Low752.70.7971
Triple Number All Purpose Medium576.91.0401
Triple Number All Purpose High513.41.1687
Triple Number Windward/Leeward Low969.30.6190
Triple Number Windward/Leeward Medium710.20.8448
Triple Number Windward/Leeward High611.20.9817
Predominantly Upwind625.50.9593
Predominantly Downwind592.61.0126
Predominantly Upwind Low832.50.7207
Predominantly Upwind Medium643.70.9322
Predominantly Upwind High595.51.0076
Predominantly Downwind Low826.80.7257
Predominantly Downwind Medium589.01.0187
Predominantly Downwind High489.21.2264
Chicago-Mac Upwind0.9415
Chicago-Mac All Purpose0.9648
Chicago-Mac Downwind0.9939
Bayview-Mac Cove Island0.8963
Bayview-Mac Shore0.9065
Harvest Moon Regatta504.21.1899
Scoring OptionTime On
Distance
Time On
Time
San Francisco Bay Heavy601.10.9981
San Francisco Bay Medium703.60.8528
Predominantly Reaching552.01.0870
Predominantly Reaching Low681.50.8804
Predominantly Reaching Medium547.31.0963
Predominantly Reaching High481.81.2452
Windward/Leeward 60-40 Low973.30.6165
Windward/Leeward 60-40 Medium731.00.8208
Windward/Leeward 60-40 High645.50.9295
5-Band
Windward/Leeward
Time On
Distance
Time On
Time
5-Band Low1057.40.5674
5-Band Low / Medium884.90.6780
5-Band Medium696.80.8610
5-Band Medium / High620.80.9665
5-Band High591.21.0149

Club
Certificate
2023

Boat

BOOMERANG

USA 9680

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassCAL 40Measurement18/03/1992HIN114Plan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA11.964Max. Beam3.322Draft1.752Displacement6,998Wetted area29.92IMS L9.508LSM09.201Acc. length10.797Sink (kg/mm) 20.43
VCGD-0.201VCGM-0.132RM Rated (kg·m) 178.9Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.458PBW0.101PIPA0.0009
PSD0.025PHD0.043PHL0.147
PSA15.0°ESL0.214
ST10.017ST20.080ST30.089
ST40.061ST50.238
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P12.193IG14.119ISP14.058MDT10.132MDL10.244MDT20.129MDL20.183TL2.317MW0.159GO0.199
E5.335J4.618BAS1.430FSD0.037SFJ0.000SPL4.788WPLTPS0.000BD0.189MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered180.7Flotation Date14/04/1986MeasurerComment
SFFP0.465FFMFF1.304LCFcl6.282SG1.0190
SAFP11.755FAMFA0.939LCFsh6.499HBI1.002
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG00.000.00Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGaAnchor00.00Total deductible0

Club
Certificate
2023

Boat

BOOMERANG

USA 9680

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20719840.151.041.943.374.4738.162018 MAINSAIL
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20719640.080.891.743.605.577.5414.01NoNo 51.652018 #1 GENOA
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment207197713.9013.9013.907.447.9587.36S2 SPINNAKER