Club
Certificate
2023

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 Angles44.1°41.8°40.6°39.9°39.4°39.4°39.9°
Beat VMG3.644.424.905.135.245.305.31
52°5.606.617.187.437.557.627.67
60°5.926.897.427.677.797.877.93
75°6.167.097.607.908.108.238.38
90°6.057.127.617.968.258.498.84
110°6.177.327.918.308.578.809.22
120°6.047.237.888.358.799.169.73
135°5.456.737.578.108.609.1110.31
150°4.615.816.827.527.938.289.03
Run VMG3.995.035.916.516.877.328.14
Gybe Angles143.3°146.9°149.2°150.1°150.5°173.0°175.7°

APH: 527.6

CDL: 10.055

GPH: 589.2

CertNo: US7186

BOAT
ClassMAESTRO 40 SDDesignerEIVIND STILLBuilderMAESTRO BOATSAge date06/2006Series date02/2005Offset filekona.offData fileUSA7
HULL
Length Overall12.080 mMaximum Beam3.634 mDraft1.904 mDisplacement7,291 kgDLR5.3995IMS DivisionCruiser/RacerDynamic Allowance0.160%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.460m
CREW
Maximum weight540 kgMinimum weight405 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail48.3148.92Headsail Luffed40.7040.70Headsail FlyingSymmetricAsymmetric142.18142.18 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail14.96Storm Jib14.33Heavy Weather Jib38.69
SAIL LIMITS
Headsails6  Spinnakers5
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  04560002Q9KIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

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 VMG989.7813.6734.0702.2686.9679.2678.6
52°643.1544.3501.3484.6476.9472.6469.6
60°608.1522.3485.1469.2462.0457.7453.9
75°584.9507.7473.5455.6444.2437.5429.7
90°595.0505.9473.4452.4436.6423.9407.1
110°583.3491.8455.1433.5420.3408.9390.4
120°595.9497.9456.9430.9409.4392.9370.0
135°660.2534.9475.3444.2418.7395.3349.1
150°781.0619.4527.6478.8453.9434.7398.7
Run VMG901.9715.2609.2552.7523.8491.6442.4
Selected Courses
Windward / Leeward945.8764.4671.6627.5605.3585.4560.5
All purpose728.4600.8540.4510.7493.5479.9461.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward653.90.9176
All purpose527.61.1373
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7948
Downwind "popa"0.9913
70% up, 30% down "Ilhabela"0.8451
30% up, 70% down "Ilhabela-inverso"0.9229
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Predominantly Upwind573.61.0461
Predominantly Downwind529.01.1343
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low664.60.9028
Triple Number All Purpose Medium523.81.1454
Triple Number All Purpose High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Predominantly Upwind573.61.0461
Predominantly Downwind529.01.1343
Predominantly Upwind Low747.90.8022
Predominantly Upwind Medium596.51.0059
Predominantly Upwind High563.11.0656
Predominantly Downwind Low716.30.8377
Predominantly Downwind Medium523.61.1460
Predominantly Downwind High447.21.3415
Chicago-Mac Upwind1.0275
Chicago-Mac All Purpose1.0681
Chicago-Mac Downwind1.1159
Bayview-Mac Cove Island0.9983
Bayview-Mac Shore1.0040
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching498.31.2041
Predominantly Reaching Low600.70.9988
Predominantly Reaching Medium492.31.2187
Predominantly Reaching High437.11.3728
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low931.80.6439
5-Band Low / Medium784.80.7645
5-Band Medium639.00.9390
5-Band Medium / High588.21.0201
5-Band High564.81.0623
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance573.5
Triple Number Coastal/Long Distance Low664.6
Triple Number Coastal/Long Distance Medium523.8
Triple Number Coastal/Long Distance High476.3
Triple Number Windward/Leeward Low855.1
Triple Number Windward/Leeward Medium648.0
Triple Number Windward/Leeward High581.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9028
Triple Number Coastal/Long Distance Medium1.1454
Triple Number Coastal/Long Distance High1.2597
Triple Number Windward/Leeward Low0.7017
Triple Number Windward/Leeward Medium0.9259
Triple Number Windward/Leeward High1.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low664.6
Triple Number Coastal/Long Distance Medium523.8
Triple Number Coastal/Long Distance High476.3
Triple Number Windward/Leeward Low855.1
Triple Number Windward/Leeward Medium648.0
Triple Number Windward/Leeward High581.1
Predominantly Upwind573.6
Predominantly Downwind529.0
Predominantly Reaching508.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9028
Triple Number Coastal/Long Distance Medium1.1454
Triple Number Coastal/Long Distance High1.2597
Triple Number Windward/Leeward Low0.7017
Triple Number Windward/Leeward Medium0.9259
Triple Number Windward/Leeward High1.0326
Coastal/Long Distance1.0462
Predominantly Upwind1.0461
Predominantly Downwind1.1343
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9028
Tretall Distanseseilas Mellomvind1.1454
Tretall Distanseseilas Mye vind1.2597
Tretall Pølsebane Lite vind0.7017
Tretall Pølsebane Mellomvind0.9259
Tretall Pølsebane Mye vind1.0326
Distanseseilas ett tall (OSN 8-16kn)1.0462
Distanseseilas ett tall (APH 6-20kn)1.1373
Enkeltall Motvind1.0461
Enkeltall Medvind1.1343
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Coastal/Long Distance573.51.0462
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind573.61.0461
Predominantly Downwind529.01.1343
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore568.01.0564
Cape Doctor Coastal466.81.2854
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9028
Triple Number Coastal/Long Distance Medium1.1454
Triple Number Coastal/Long Distance High1.2597
Triple Number Windward/Leeward Low0.7017
Triple Number Windward/Leeward Medium0.9259
Triple Number Windward/Leeward High1.0326
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9028
Triple Number Coastal/Long Distance Medium1.1454
Triple Number Coastal/Long Distance High1.2597
Triple Number Windward/Leeward Low0.7017
Triple Number Windward/Leeward Medium0.9259
Triple Number Windward/Leeward High1.0326
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Predominantly Upwind573.61.0461
Predominantly Downwind529.01.1343
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.51.0462
Triple Number Coastal/Long Distance Low664.60.9028
Triple Number Coastal/Long Distance Medium523.81.1454
Triple Number Coastal/Long Distance High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance941.4718.8606.9545.6512.3483.9439.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low664.60.9028
Triple Number All Purpose Medium523.81.1454
Triple Number All Purpose High476.31.2597
Triple Number Windward/Leeward Low855.10.7017
Triple Number Windward/Leeward Medium648.00.9259
Triple Number Windward/Leeward High581.11.0326
Predominantly Upwind573.61.0461
Predominantly Downwind529.01.1343
Predominantly Upwind Low747.90.8022
Predominantly Upwind Medium596.51.0059
Predominantly Upwind High563.11.0656
Predominantly Downwind Low716.30.8377
Predominantly Downwind Medium523.61.1460
Predominantly Downwind High447.21.3415
Chicago-Mac Upwind1.0275
Chicago-Mac All Purpose1.0681
Chicago-Mac Downwind1.1159
Bayview-Mac Cove Island0.9983
Bayview-Mac Shore1.0040
Harvest Moon Regatta457.01.3128
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy564.21.0635
San Francisco Bay Medium637.50.9412
Predominantly Reaching498.31.2041
Predominantly Reaching Low600.70.9988
Predominantly Reaching Medium492.31.2187
Predominantly Reaching High437.11.3728
Windward/Leeward 60-40 Low864.40.6941
Windward/Leeward 60-40 Medium671.90.8930
Windward/Leeward 60-40 High615.00.9756
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low931.80.6439
5-Band Low / Medium784.80.7645
5-Band Medium639.00.9390
5-Band Medium / High588.21.0201
5-Band High564.81.0623
ORC Ref  04560002Q9KIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

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
LOA12.080Max. Beam3.634Draft1.904Displacement7,291Wetted area31.09IMS L11.067LSM011.052Acc. length11.810Sink (kg/mm) 23.19
VCGD-0.048VCGM-0.042RM Rated (kg·m) 182.6Limit 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/Checkstays0Spreaders2Rotating mastNo
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 methodRM entered directlyRM entered183.8Flotation Date13/06/2021MeasurerComment
SFFP0.378FFMFF1.381LCFcl6.812SG1.0000
SAFP11.368FAMFA1.054LCFsh7.048HBI1.185
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 setteeFuel2002005.200.10Total deductible1685.200.10
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
ORC Ref  04560002Q9KIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

KONA

USA 7

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM10.050.951.773.174.3248.3104/05/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentAP0.090.761.382.533.684.8716.20YesNo 40.7026/05/202311620J10.100.671.232.383.554.8016.20YesNo 38.9314/06/2021Old North jib
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA218.2915.2116.7510.309.73106%142.1814/06/2021
ORC Ref  04560002Q9KIssued on 14/07/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org