Club
Certificate
2022

Boat

KONA

USA 7

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 Angles44.2°42.4°41.8°40.8°40.2°39.9°40.0°
Beat VMG3.514.294.845.115.235.285.38
52°5.436.497.187.457.557.607.73
60°5.776.837.427.687.787.847.94
75°6.067.087.607.898.098.218.31
90°6.077.237.657.948.238.508.90
110°6.197.397.948.288.548.809.26
120°6.067.297.898.368.849.199.81
135°5.486.777.608.088.599.1810.60
150°4.655.836.877.557.928.259.06
Run VMG4.035.055.956.556.877.358.11
Gybe Angles143.9°146.9°148.9°150.7°152.0°173.6°176.6°

APH: 528.8

CDL: 10.019

GPH: 591.6

CertNo: US7186

BOAT
ClassMAESTRO 40 SDDesignerEIVIND STILLBuilderMAESTRO BOATSAge date06/2006Series date02/2005Offset filekona.offData fileUSA7
HULL
Length Overall12.066 mMaximum Beam3.634 mDraft1.903 mDisplacement7,279 kgDLR5.2715IMS DivisionCruiser/RacerDynamic Allowance0.165%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.460m
CREW
Maximum weight522 kgMinimum weight392 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail48.3148.92Headsail Luffed38.9338.93Headsail FlyingSymmetricAsymmetric142.18142.18 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail14.96Storm Jib14.33Heavy Weather Jib38.69
SAIL LIMITS
Headsails6  Spinnakers4
STABILITY
Righting Moment183.8 kg·mStability 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
2022

Boat

KONA

USA 7

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 VMG1025.4840.1743.8704.8689.0681.3668.9
52°663.5554.8501.5483.5476.9473.8466.0
60°623.8527.3485.0468.9462.7459.4453.3
75°594.1508.8473.7456.3445.1438.8433.1
90°593.5497.8470.7453.3437.5423.3404.6
110°581.6487.2453.6434.7421.4409.2388.7
120°594.3494.1456.3430.6407.1391.8367.1
135°656.4531.6473.5445.4419.0392.3339.6
150°774.0617.6524.4476.7454.4436.5397.5
Run VMG893.7713.2605.5550.0523.7489.6443.9
Selected Courses
Windward / Leeward959.6776.6674.6627.4606.4585.4556.4
All purpose737.1605.8541.3511.1494.2480.2457.7
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward656.40.9140
All purpose528.81.1347
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.7846
Downwind "popa"0.9953
70% up, 30% down "Ilhabela"0.8378
30% up, 70% down "Ilhabela-inverso"0.9211
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Predominantly Upwind577.11.0397
Predominantly Downwind528.71.1348
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low671.40.8936
Triple Number All Purpose Medium524.81.1432
Triple Number All Purpose High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Predominantly Upwind577.11.0397
Predominantly Downwind528.71.1348
Predominantly Upwind Low764.40.7849
Predominantly Upwind Medium600.01.0000
Predominantly Upwind High561.41.0688
Predominantly Downwind Low717.40.8363
Predominantly Downwind Medium522.41.1485
Predominantly Downwind High445.41.3470
Chicago-Mac Upwind1.0219
Chicago-Mac All Purpose1.0655
Chicago-Mac Downwind1.1174
Bayview-Mac Cove Island0.9914
Bayview-Mac Shore0.9954
Victoria-Maui1.1867
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance576.0
Triple Number Coastal/Long Distance Low671.4
Triple Number Coastal/Long Distance Medium524.8
Triple Number Coastal/Long Distance High475.3
Triple Number Windward/Leeward Low868.1
Triple Number Windward/Leeward Medium650.3
Triple Number Windward/Leeward High579.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8936
Triple Number Coastal/Long Distance Medium1.1432
Triple Number Coastal/Long Distance High1.2624
Triple Number Windward/Leeward Low0.6912
Triple Number Windward/Leeward Medium0.9226
Triple Number Windward/Leeward High1.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low671.4
Triple Number Coastal/Long Distance Medium524.8
Triple Number Coastal/Long Distance High475.3
Triple Number Windward/Leeward Low868.1
Triple Number Windward/Leeward Medium650.3
Triple Number Windward/Leeward High579.8
Predominantly Upwind577.1
Predominantly Downwind528.7
Predominantly Reaching508.2
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8936
Triple Number Coastal/Long Distance Medium1.1432
Triple Number Coastal/Long Distance High1.2624
Triple Number Windward/Leeward Low0.6912
Triple Number Windward/Leeward Medium0.9226
Triple Number Windward/Leeward High1.0349
Coastal/Long Distance1.0417
Predominantly Upwind1.0397
Predominantly Downwind1.1348
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)1.0417
Tretall Distanseseilas Lite vind0.8936
Tretall Distanseseilas Mellomvind1.1432
Tretall Distanseseilas Mye vind1.2624
Tretall Pølsebane Lite vind0.6912
Tretall Pølsebane Mellomvind0.9226
Tretall Pølsebane Mye vind1.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Coastal/Long Distance576.01.0417
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind577.11.0397
Predominantly Downwind528.71.1348
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore565.11.0618
Cape Doctor Coastal464.51.2918
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8936
Triple Number Coastal/Long Distance Medium1.1432
Triple Number Coastal/Long Distance High1.2624
Triple Number Windward/Leeward Low0.6912
Triple Number Windward/Leeward Medium0.9226
Triple Number Windward/Leeward High1.0349
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8936
Triple Number Coastal/Long Distance Medium1.1432
Triple Number Coastal/Long Distance High1.2624
Triple Number Windward/Leeward Low0.6912
Triple Number Windward/Leeward Medium0.9226
Triple Number Windward/Leeward High1.0349
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Predominantly Upwind577.11.0397
Predominantly Downwind528.71.1348
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance576.01.0417
Triple Number Coastal/Long Distance Low671.40.8936
Triple Number Coastal/Long Distance Medium524.81.1432
Triple Number Coastal/Long Distance High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance953.0728.1608.7545.7512.8484.4437.1
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low671.40.8936
Triple Number All Purpose Medium524.81.1432
Triple Number All Purpose High475.31.2624
Triple Number Windward/Leeward Low868.10.6912
Triple Number Windward/Leeward Medium650.30.9226
Triple Number Windward/Leeward High579.81.0349
Predominantly Upwind577.11.0397
Predominantly Downwind528.71.1348
Predominantly Upwind Low764.40.7849
Predominantly Upwind Medium600.01.0000
Predominantly Upwind High561.41.0688
Predominantly Downwind Low717.40.8363
Predominantly Downwind Medium522.41.1485
Predominantly Downwind High445.41.3470
Chicago-Mac Upwind1.0219
Chicago-Mac All Purpose1.0655
Chicago-Mac Downwind1.1174
Bayview-Mac Cove Island0.9914
Bayview-Mac Shore0.9954
Harvest Moon Regatta464.31.2922
Victoria-Maui1.1867
5-Band
Windward/Leeward
Time On DistanceTime On Time
5-Band Low945.50.6346
5-Band Low / Medium794.80.7549
5-Band Medium640.70.9365
5-Band Medium / High587.61.0210
5-Band High561.41.0688

Club
Certificate
2022

Boat

KONA

USA 7

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMAESTRO 40 SDMeasurement13/06/2021HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA12.066Max. Beam3.634Draft1.903Displacement7,279Wetted area31.07IMS L11.061LSM011.134Acc. length11.810Sink (kg/mm) 23.18
VCGD-0.067VCGM-0.061RM Measured (kg·m) 183.8RM Default (kg·m) 170.6Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.460PBW0.110PIPA0.0041
EDL1.224ST10.065ST20.178
ST30.178ST40.111ST50.300
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2
P16.175IG16.859ISP17.011MDT10.145MDL10.235MDT20.135MDL20.185TL3.500MW0.216GO0.235
E5.285J4.610BAS1.663FSD0.040SFJ0.100SPLWPLTPS5.675BD0.184MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date13/06/2021MeasurerComment
SFFP0.378FFMFF1.382LCFcl6.813SG1.0000
SAFP11.368FAMFA1.054LCFsh7.048HBI1.186
W1120.8W2120.8W3120.8W4120.8LCFD6.339
PD1265.8PD2266.6PD3264.2PD4265.0
WD5.128PLM9000.00GSA1.0RSA1.0
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG4Waste Alloy Stbd outboard lazarette5009.100.503Water Alloy Stbd outboard10006.500.102Water Alloy Port settee20005.200.101Fuel Alloy Stbd settee0.90002002005.200.10Total deductible1805.200.10
OTHER ITEMSIdKindDescriptionWeightLCGVCG6MiscellaneousStove/oven galley port side307.400.505MiscellaneousWhisper 3.5 kW genset, centerline608.500.004MiscellaneousAC unit, stbd centerline259.100.103MiscellaneousBow thruster, centerline251.900.002MiscellaneousWindlass, centerline200.500.801MiscellaneousAc unit port centerline253.600.102Battery12V AGM engine, port centerline308.500.001Battery3x 12V AGM house + bow thruster903.530.101EngineVolvo D2-40Total deductible0

Club
Certificate
2022

Boat

KONA

USA 7

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateMakerMaterialCommentM10.050.951.773.174.3248.3104/05/2021UK Chicago
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialCommentJ10.100.671.232.383.554.8016.20YesNo 38.9314/06/2021NorthOld North jib
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateMakerMaterialCommentA218.2915.2116.7510.309.73106%142.1814/06/2021UK ChicagoUnknown