Club
Certificate
2023

Boat

BOOMERANG

USA 25500

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 Angles41.4°40.0°38.1°37.2°37.0°36.9°37.0°
Beat VMG3.414.034.394.544.624.674.70
52°5.095.806.126.296.386.446.48
60°5.305.936.246.416.526.596.65
75°5.426.026.336.536.686.816.94
90°5.306.016.396.646.836.977.21
110°5.115.966.406.716.997.267.76
120°4.905.836.336.676.977.297.94
135°4.465.436.076.456.757.077.83
150°3.794.775.586.116.456.747.37
Run VMG3.294.134.865.475.996.356.90
Gybe Angles145.1°149.8°154.3°164.6°177.2°179.0°179.0°

APH: 623.9

CDL: 7.377

GPH: 693.0

CertNo: US2550

BOAT
ClassHALF TONDesignerG. MULLBuilderGOUGEONAge date01/1976Series date01/1976Offset fileHOT_FLASH_JT2.offData fileUSA 25500
HULL
Length Overall9.601 mMaximum Beam3.112 mDraft1.779 mDisplacement3,725 kgDLR9.3462IMS DivisionPerformanceDynamic Allowance0.220%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.320m
CREW
Maximum weight444 kgMinimum weight333 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail21.6521.99Headsail Luffed35.8635.86Headsail FlyingSymmetric65.1753.99Asymmetric55.2855.28 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail6.29Storm Jib7.50Heavy Weather Jib20.23
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric may be tacked on the pole
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  04560002OQOIssued on 20/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

BOOMERANG

USA 25500

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 VMG1055.9893.6819.6792.2778.4770.5766.7
52°706.9621.0587.9572.0564.1559.4555.7
60°678.9606.6577.3561.4551.8546.5541.6
75°664.8598.5569.1551.3538.5528.9518.4
90°679.2599.2563.1542.3527.2516.3499.2
110°703.9604.4562.6536.5515.1496.0463.6
120°734.6617.5569.1540.1516.5493.6453.2
135°808.0662.9593.3558.5533.4509.2460.0
150°948.9754.6645.7589.4558.0534.5488.7
Run VMG1095.7871.3741.4657.9601.1566.9521.8
Selected Courses
Windward / Leeward1075.8882.5780.5725.0689.7668.7644.2
All purpose836.1704.4640.6606.8585.5570.2547.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward752.70.7972
All purpose623.90.9617
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7147
Downwind "popa"0.8307
70% up, 30% down "Ilhabela"0.7459
30% up, 70% down "Ilhabela-inverso"0.7921
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Predominantly Upwind666.50.9002
Predominantly Downwind635.60.9439
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low770.20.7790
Triple Number All Purpose Medium620.90.9664
Triple Number All Purpose High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Predominantly Upwind666.50.9002
Predominantly Downwind635.60.9439
Predominantly Upwind Low838.50.7155
Predominantly Upwind Medium685.40.8754
Predominantly Upwind High652.60.9193
Predominantly Downwind Low852.30.7040
Predominantly Downwind Medium633.30.9475
Predominantly Downwind High538.71.1138
Chicago-Mac Upwind0.8864
Chicago-Mac All Purpose0.9055
Chicago-Mac Downwind0.9288
Bayview-Mac Cove Island0.8538
Bayview-Mac Shore0.8622
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching597.11.0049
Predominantly Reaching Low706.20.8496
Predominantly Reaching Medium592.61.0125
Predominantly Reaching High534.51.1224
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1060.90.5655
5-Band Low / Medium902.80.6646
5-Band Medium736.70.8144
5-Band Medium / High672.80.8918
5-Band High648.50.9253
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance674.9
Triple Number Coastal/Long Distance Low770.2
Triple Number Coastal/Long Distance Medium620.9
Triple Number Coastal/Long Distance High565.5
Triple Number Windward/Leeward Low979.1
Triple Number Windward/Leeward Medium747.8
Triple Number Windward/Leeward High664.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7790
Triple Number Coastal/Long Distance Medium0.9664
Triple Number Coastal/Long Distance High1.0611
Triple Number Windward/Leeward Low0.6128
Triple Number Windward/Leeward Medium0.8023
Triple Number Windward/Leeward High0.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low770.2
Triple Number Coastal/Long Distance Medium620.9
Triple Number Coastal/Long Distance High565.5
Triple Number Windward/Leeward Low979.1
Triple Number Windward/Leeward Medium747.8
Triple Number Windward/Leeward High664.7
Predominantly Upwind666.5
Predominantly Downwind635.6
Predominantly Reaching610.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7790
Triple Number Coastal/Long Distance Medium0.9664
Triple Number Coastal/Long Distance High1.0611
Triple Number Windward/Leeward Low0.6128
Triple Number Windward/Leeward Medium0.8023
Triple Number Windward/Leeward High0.9026
Coastal/Long Distance0.8890
Predominantly Upwind0.9002
Predominantly Downwind0.9439
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7790
Tretall Distanseseilas Mellomvind0.9664
Tretall Distanseseilas Mye vind1.0611
Tretall Pølsebane Lite vind0.6128
Tretall Pølsebane Mellomvind0.8023
Tretall Pølsebane Mye vind0.9026
Distanseseilas ett tall (OSN 8-16kn)0.8890
Distanseseilas ett tall (APH 6-20kn)0.9617
Enkeltall Motvind0.9002
Enkeltall Medvind0.9439
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Coastal/Long Distance674.90.8890
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind666.50.9002
Predominantly Downwind635.60.9439
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore651.60.9209
Cape Doctor Coastal554.11.0828
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7790
Triple Number Coastal/Long Distance Medium0.9664
Triple Number Coastal/Long Distance High1.0611
Triple Number Windward/Leeward Low0.6128
Triple Number Windward/Leeward Medium0.8023
Triple Number Windward/Leeward High0.9026
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7790
Triple Number Coastal/Long Distance Medium0.9664
Triple Number Coastal/Long Distance High1.0611
Triple Number Windward/Leeward Low0.6128
Triple Number Windward/Leeward Medium0.8023
Triple Number Windward/Leeward High0.9026
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Predominantly Upwind666.50.9002
Predominantly Downwind635.60.9439
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance674.90.8890
Triple Number Coastal/Long Distance Low770.20.7790
Triple Number Coastal/Long Distance Medium620.90.9664
Triple Number Coastal/Long Distance High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.8834.9712.2644.2606.3576.4526.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low770.20.7790
Triple Number All Purpose Medium620.90.9664
Triple Number All Purpose High565.51.0611
Triple Number Windward/Leeward Low979.10.6128
Triple Number Windward/Leeward Medium747.80.8023
Triple Number Windward/Leeward High664.70.9026
Predominantly Upwind666.50.9002
Predominantly Downwind635.60.9439
Predominantly Upwind Low838.50.7155
Predominantly Upwind Medium685.40.8754
Predominantly Upwind High652.60.9193
Predominantly Downwind Low852.30.7040
Predominantly Downwind Medium633.30.9475
Predominantly Downwind High538.71.1138
Chicago-Mac Upwind0.8864
Chicago-Mac All Purpose0.9055
Chicago-Mac Downwind0.9288
Bayview-Mac Cove Island0.8538
Bayview-Mac Shore0.8622
Harvest Moon Regatta552.71.0855
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy654.60.9165
San Francisco Bay Medium740.90.8098
Predominantly Reaching597.11.0049
Predominantly Reaching Low706.20.8496
Predominantly Reaching Medium592.61.0125
Predominantly Reaching High534.51.1224
Windward/Leeward 60-40 Low978.30.6133
Windward/Leeward 60-40 Medium767.80.7815
Windward/Leeward 60-40 High700.90.8560
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1060.90.5655
5-Band Low / Medium902.80.6646
5-Band Medium736.70.8144
5-Band Medium / High672.80.8918
5-Band High648.50.9253
ORC Ref  04560002OQOIssued on 20/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

BOOMERANG

USA 25500

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassHALF TONMeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.601Max. Beam3.112Draft1.779Displacement3,725Wetted area17.61IMS L7.647LSM07.359Acc. length9.763Sink (kg/mm) 12.30
VCGD-0.055VCGM-0.077RM Rated (kg·m) 66.2Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.320PBW0.000PIPA0.0021
PSD0.025PHD0.040PHL0.062
PSA17.0°ESL0.560
ST10.023ST20.110ST30.110
ST40.048ST50.150
RIG
Forestay tensionAftInner stayAdjustableCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P10.973IG12.241ISP12.241MDT10.113MDL10.150MDT20.000MDL20.000TL0.000MW0.000GO0.000
E3.271J3.703BAS1.250FSD0.035SFJ0.000SPL3.703WPL0.000TPS0.000BD0.170MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date04/08/2017MeasurerComment
SFFP0.750FFMFF1.027LCFcl5.090SG1.0250
SAFP8.481FAMFA0.832LCFsh5.324HBI0.930
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002OQOIssued on 20/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

BOOMERANG

USA 25500

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.120.721.252.132.8021.6530/12/1899
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.000.721.432.854.275.6912.56NoNo 35.8630/12/1899
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment011.870.005.946.666.3065.1730/12/1899
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment012.8611.1312.005.286.5381%55.2830/12/1899
ORC Ref  04560002OQOIssued on 20/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org