Club
Certificate
2024

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 24 kt
Beat Angles41.5°40.0°38.0°37.4°37.0°37.0°37.2°38.2°
Beat VMG3.414.034.404.564.634.674.704.63
52°5.095.806.136.306.396.446.486.48
60°5.305.936.246.426.536.596.666.68
75°5.416.016.336.536.696.816.957.04
90°5.305.976.366.616.806.957.217.39
110°5.075.956.406.716.997.267.748.12
120°4.905.836.326.666.967.297.948.47
135°4.455.436.066.446.747.067.818.63
150°3.794.765.576.106.446.727.348.10
Run VMG3.284.124.845.455.976.336.887.49
Gybe Angles144.9°149.4°154.1°164.0°176.3°179.0°179.0°178.6°
APH ToD:624.2CDL: 7.403APH ToT: 0.9612CertNo: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 Allowance0.230%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.320m
CREW
Maximum weight444 kg(default)Minimum weight314 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.

Club
Certificate
2024

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 24 kt
Beat VMG1056.4893.6818.2790.3777.1770.4766.7778.1
52°707.3621.2587.5571.3563.5559.4555.1556.0
60°679.2606.8577.1561.0551.3546.5540.6539.2
75°664.9598.6569.0551.1538.3528.9517.9511.2
90°679.0602.5566.0544.3529.1517.9499.4487.4
110°710.5605.1562.8536.6515.0495.8464.9443.5
120°734.4617.7569.3540.5517.0494.0453.2425.1
135°808.5663.4593.8559.0533.9510.1461.1417.1
150°950.7756.1646.9590.4558.9535.5490.2444.5
Run VMG1097.8873.1743.2660.0603.0568.4523.5480.6
Selected Courses
Windward / Leeward1077.1883.3780.7725.2690.0669.4645.1629.4
All purpose837.3705.2640.9606.9585.7570.6547.7531.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward753.10.7967
All purpose624.20.9612
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7152
Downwind "popa"0.8286
70% up, 30% down "Ilhabela"0.7458
30% up, 70% down "Ilhabela-inverso"0.7909
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Predominantly Upwind666.70.8999
Predominantly Downwind636.70.9424
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low771.20.7780
Triple Number AP Medium621.20.9659
Triple Number AP High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Single Number Predominant Upwind665.00.9022
Single Number Predominant Reaching602.00.9967
Single Number Predominant Downwind637.70.9408
Predominant Upwind - Low828.40.7243
Predominant Upwind - Low/Med715.30.8388
Predominant Upwind - Medium649.90.9232
Predominant Upwind - Med/High617.60.9715
Predominant Upwind - High603.00.9950
Predominant Downwind Low855.10.7017
Predominant Downwind Low/Med711.00.8439
Predominant Downwind Medium617.50.9717
Predominant Downwind Med/High558.51.0744
Predominant Downwind High522.51.1484
Predominant Reaching Low757.70.7919
Predominant Reaching Low/Med652.60.9193
Predominant Reaching Medium588.01.0203
Predominant Reaching Med/High548.61.0937
Predominant Reaching High523.11.1470
SA/DSPL Upwind23.83SA/DSPL Downwind35.97
Scoring OptionTODTOT
5-Band Windward/Leeward Low1033.10.5808
5-Band Windward/Leeward Low/Med852.30.7039
5-Band Windward/Leeward Medium737.00.8141
5-Band Windward/Leeward Med/High673.40.8909
5-Band Windward/Leeward High646.60.9280
Windward/Leeward 60-40 Low1030.40.5823
Windward/Leeward 60-40 Low/Med857.00.7001
Windward/Leeward 60-40 Medium749.50.8006
Windward/Leeward 60-40 Med/High693.30.8655
Windward/Leeward 60-40 High671.10.8941
5-Band AP Low807.30.7432
5-Band AP Low/Med687.50.8728
5-Band AP Medium614.10.9770
5-Band AP Med/High572.31.0483
5-Band AP High548.91.0932
5-Band SF Bay Tour - Low980.30.6121
5-Band SF Bay Tour - Low/Med815.80.7355
5-Band SF Bay Tour - Medium714.60.8396
5-Band SF Bay Tour - Med/High660.50.9084
5-Band SF Bay Tour - High635.20.9446
Chicago-Mac Upwind0.8863
Chicago-Mac All Purpose0.9046
Chicago-Mac Downwind0.9273
Bayview-Mac Cove Island0.8528
Bayview-Mac Shore0.8614
Harvest Moon Regatta553.61.0838
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance675.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7780
Triple Number Coastal/Long Distance Medium0.9660
Triple Number Coastal/Long Distance High1.0605
Triple Number Windward/Leeward Low0.6121
Triple Number Windward/Leeward Medium0.8021
Triple Number Windward/Leeward High0.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low771.2
Triple Number Coastal/Long Distance Medium621.1
Triple Number Coastal/Long Distance High565.8
Triple Number Windward/Leeward Low980.2
Triple Number Windward/Leeward Medium748.0
Triple Number Windward/Leeward High665.4
Predominantly Upwind666.7
Predominantly Downwind636.7
Predominantly Reaching612.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7780
Triple Number Coastal/Long Distance Medium0.9660
Triple Number Coastal/Long Distance High1.0605
Triple Number Windward/Leeward Low0.6121
Triple Number Windward/Leeward Medium0.8021
Triple Number Windward/Leeward High0.9017
Coastal/Long Distance0.8884
Predominantly Upwind0.8999
Predominantly Downwind0.9424
For information
General Purpose Handicap (GPH)693.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7780
Tretall Distanseseilas Mellomvind0.9660
Tretall Distanseseilas Mye vind1.0605
Tretall Pølsebane Lite vind0.6121
Tretall Pølsebane Mellomvind0.8021
Tretall Pølsebane Mye vind0.9017
Distanseseilas ett tall (OSN 8-16kn)0.8884
Distanseseilas ett tall (APH 6-20kn)0.9612
Enkeltall Motvind0.8999
Enkeltall Medvind0.9424
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Coastal/Long Distance675.40.8884
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind666.70.8999
Predominantly Downwind636.70.9424
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore634.10.9463
Cape Doctor Coastal536.51.1184
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7780
Triple Number Coastal/Long Distance Medium0.9660
Triple Number Coastal/Long Distance High1.0605
Triple Number Windward/Leeward Low0.6121
Triple Number Windward/Leeward Medium0.8021
Triple Number Windward/Leeward High0.9017
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7780
Triple Number Coastal/Long Distance Medium0.9660
Triple Number Coastal/Long Distance High1.0605
Triple Number Windward/Leeward Low0.6121
Triple Number Windward/Leeward Medium0.8021
Triple Number Windward/Leeward High0.9017
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Predominantly Upwind666.70.8999
Predominantly Downwind636.70.9424
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance675.40.8884
Triple Number Coastal/Long Distance Low771.20.7780
Triple Number Coastal/Long Distance Medium621.10.9660
Triple Number Coastal/Long Distance High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1079.2835.8712.5644.3606.6577.0526.4508.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low771.20.7780
Triple Number AP Medium621.20.9659
Triple Number AP High565.81.0605
Triple Number Windward/Leeward Low980.20.6121
Triple Number Windward/Leeward Medium748.00.8021
Triple Number Windward/Leeward High665.40.9017
Single Number Predominant Upwind665.00.9022
Single Number Predominant Reaching602.00.9967
Single Number Predominant Downwind637.70.9408
Predominant Upwind - Low828.40.7243
Predominant Upwind - Low/Med715.30.8388
Predominant Upwind - Medium649.90.9232
Predominant Upwind - Med/High617.60.9715
Predominant Upwind - High603.00.9950
Predominant Downwind Low855.10.7017
Predominant Downwind Low/Med711.00.8439
Predominant Downwind Medium617.50.9717
Predominant Downwind Med/High558.51.0744
Predominant Downwind High522.51.1484
Predominant Reaching Low757.70.7919
Predominant Reaching Low/Med652.60.9193
Predominant Reaching Medium588.01.0203
Predominant Reaching Med/High548.61.0937
Predominant Reaching High523.11.1470
SA/DSPL Upwind23.83SA/DSPL Downwind35.97
Scoring OptionTODTOT
5-Band Windward/Leeward Low1033.10.5808
5-Band Windward/Leeward Low/Med852.30.7039
5-Band Windward/Leeward Medium737.00.8141
5-Band Windward/Leeward Med/High673.40.8909
5-Band Windward/Leeward High646.60.9280
Windward/Leeward 60-40 Low1030.40.5823
Windward/Leeward 60-40 Low/Med857.00.7001
Windward/Leeward 60-40 Medium749.50.8006
Windward/Leeward 60-40 Med/High693.30.8655
Windward/Leeward 60-40 High671.10.8941
5-Band AP Low807.30.7432
5-Band AP Low/Med687.50.8728
5-Band AP Medium614.10.9770
5-Band AP Med/High572.31.0483
5-Band AP High548.91.0932
5-Band SF Bay Tour - Low980.30.6121
5-Band SF Bay Tour - Low/Med815.80.7355
5-Band SF Bay Tour - Medium714.60.8396
5-Band SF Bay Tour - Med/High660.50.9084
5-Band SF Bay Tour - High635.20.9446
Chicago-Mac Upwind0.8863
Chicago-Mac All Purpose0.9046
Chicago-Mac Downwind0.9273
Bayview-Mac Cove Island0.8528
Bayview-Mac Shore0.8614
Harvest Moon Regatta553.61.0838

Club
Certificate
2024

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 L7.665LSM07.359Acc. length9.763Sink (kg/mm) 12.30
VCGD-0.065VCGM-0.087RM Rated (kg·m) 66.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight444Declared crew weightN/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 stayAdjustableMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/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 Date04/08/2017
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2024

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