Club
Certificate
2023

Boat

MADRONA

USA 79067

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 Angles42.0°39.6°38.1°37.0°36.9°37.0°37.6°
Beat VMG4.074.915.355.555.655.715.72
52°6.127.157.637.817.927.998.05
60°6.417.387.858.068.188.278.36
75°6.617.538.048.398.608.758.93
90°6.457.458.028.488.899.199.54
110°6.567.718.328.749.099.4210.04
120°6.437.668.388.999.489.9210.78
135°5.867.238.078.819.5710.4212.18
150°4.956.257.298.038.689.4011.26
Run VMG4.295.416.317.027.618.199.76
Gybe Angles143.9°143.8°150.2°155.6°159.2°157.4°147.4°

APH: 489.6

CDL: 10.874

GPH: 546.2

CertNo: US6465

BOAT
ClassCustomDesignerBuchanBuilderBuchanAge date01/2007Series date01/2007Offset fileBUCHAN40.offData fileUS6465
HULL
Length Overall12.368 mMaximum Beam3.508 mDraft2.691 mDisplacement4,621 kgDLR3.5800IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.436m
CREW
Maximum weight680 kgMinimum weight510 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail46.7547.75Headsail Luffed36.3736.37Headsail FlyingSymmetricAsymmetric129.71138.89 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail13.62Storm Jib12.19Heavy Weather Jib32.91
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  04560002CQDIssued on 21/02/2023Valid until 12/02/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MADRONA

USA 79067

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 VMG884.7733.7672.8649.0637.0630.2629.0
52°588.0503.4472.1460.7454.3450.3447.3
60°561.5487.5458.7446.8439.9435.3430.7
75°544.9477.9447.6429.1418.4411.2403.2
90°557.7483.0449.0424.3405.0391.6377.3
110°548.5467.1432.7411.9395.9382.0358.5
120°560.0469.8429.6400.3379.6362.8333.9
135°614.8498.0446.0408.7376.1345.5295.6
150°726.9575.9494.1448.5414.7383.2319.6
Run VMG839.3665.0570.5512.8473.3439.4369.0
Selected Courses
Windward / Leeward862.0699.4621.6580.9555.1534.8499.0
All purpose670.0556.6505.2476.6457.1441.5416.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward601.10.9982
All purpose489.61.2255
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8684
Downwind "popa"1.0854
70% up, 30% down "Ilhabela"0.9238
30% up, 70% down "Ilhabela-inverso"1.0097
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Predominantly Upwind532.51.1267
Predominantly Downwind488.41.2284
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low613.30.9783
Triple Number All Purpose Medium487.91.2297
Triple Number All Purpose High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Predominantly Upwind532.51.1267
Predominantly Downwind488.41.2284
Predominantly Upwind Low681.80.8800
Predominantly Upwind Medium554.31.0825
Predominantly Upwind High524.61.1437
Predominantly Downwind Low663.70.9041
Predominantly Downwind Medium485.21.2366
Predominantly Downwind High396.31.5142
Chicago-Mac Upwind1.1075
Chicago-Mac All Purpose1.1524
Chicago-Mac Downwind1.2057
Bayview-Mac Cove Island1.0776
Bayview-Mac Shore1.0848
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching463.11.2956
Predominantly Reaching Low559.31.0728
Predominantly Reaching Medium459.71.3052
Predominantly Reaching High399.31.5028
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low849.50.7063
5-Band Low / Medium719.10.8344
5-Band Medium589.31.0181
5-Band Medium / High536.11.1193
5-Band High505.21.1876
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance530.7
Triple Number Coastal/Long Distance Low613.3
Triple Number Coastal/Long Distance Medium487.9
Triple Number Coastal/Long Distance High436.1
Triple Number Windward/Leeward Low780.6
Triple Number Windward/Leeward Medium597.9
Triple Number Windward/Leeward High526.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9783
Triple Number Coastal/Long Distance Medium1.2297
Triple Number Coastal/Long Distance High1.3759
Triple Number Windward/Leeward Low0.7686
Triple Number Windward/Leeward Medium1.0035
Triple Number Windward/Leeward High1.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low613.3
Triple Number Coastal/Long Distance Medium487.9
Triple Number Coastal/Long Distance High436.1
Triple Number Windward/Leeward Low780.6
Triple Number Windward/Leeward Medium597.9
Triple Number Windward/Leeward High526.5
Predominantly Upwind532.5
Predominantly Downwind488.4
Predominantly Reaching471.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9783
Triple Number Coastal/Long Distance Medium1.2297
Triple Number Coastal/Long Distance High1.3759
Triple Number Windward/Leeward Low0.7686
Triple Number Windward/Leeward Medium1.0035
Triple Number Windward/Leeward High1.1397
Coastal/Long Distance1.1305
Predominantly Upwind1.1267
Predominantly Downwind1.2284
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9783
Tretall Distanseseilas Mellomvind1.2297
Tretall Distanseseilas Mye vind1.3759
Tretall Pølsebane Lite vind0.7686
Tretall Pølsebane Mellomvind1.0035
Tretall Pølsebane Mye vind1.1397
Distanseseilas ett tall (OSN 8-16kn)1.1305
Distanseseilas ett tall (APH 6-20kn)1.2255
Enkeltall Motvind1.1267
Enkeltall Medvind1.2284
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Coastal/Long Distance530.71.1305
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind532.51.1267
Predominantly Downwind488.41.2284
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore509.81.1770
Cape Doctor Coastal424.11.4149
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9783
Triple Number Coastal/Long Distance Medium1.2297
Triple Number Coastal/Long Distance High1.3759
Triple Number Windward/Leeward Low0.7686
Triple Number Windward/Leeward Medium1.0035
Triple Number Windward/Leeward High1.1397
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9783
Triple Number Coastal/Long Distance Medium1.2297
Triple Number Coastal/Long Distance High1.3759
Triple Number Windward/Leeward Low0.7686
Triple Number Windward/Leeward Medium1.0035
Triple Number Windward/Leeward High1.1397
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Predominantly Upwind532.51.1267
Predominantly Downwind488.41.2284
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance530.71.1305
Triple Number Coastal/Long Distance Low613.30.9783
Triple Number Coastal/Long Distance Medium487.91.2297
Triple Number Coastal/Long Distance High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance859.7660.3564.3508.4474.6445.8398.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low613.30.9783
Triple Number All Purpose Medium487.91.2297
Triple Number All Purpose High436.11.3759
Triple Number Windward/Leeward Low780.60.7686
Triple Number Windward/Leeward Medium597.91.0035
Triple Number Windward/Leeward High526.51.1397
Predominantly Upwind532.51.1267
Predominantly Downwind488.41.2284
Predominantly Upwind Low681.80.8800
Predominantly Upwind Medium554.31.0825
Predominantly Upwind High524.61.1437
Predominantly Downwind Low663.70.9041
Predominantly Downwind Medium485.21.2366
Predominantly Downwind High396.31.5142
Chicago-Mac Upwind1.1075
Chicago-Mac All Purpose1.1524
Chicago-Mac Downwind1.2057
Bayview-Mac Cove Island1.0776
Bayview-Mac Shore1.0848
Harvest Moon Regatta420.81.4257
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy512.61.1705
San Francisco Bay Medium586.91.0223
Predominantly Reaching463.11.2956
Predominantly Reaching Low559.31.0728
Predominantly Reaching Medium459.71.3052
Predominantly Reaching High399.31.5028
Windward/Leeward 60-40 Low786.40.7630
Windward/Leeward 60-40 Medium619.40.9687
Windward/Leeward 60-40 High562.21.0673
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low849.50.7063
5-Band Low / Medium719.10.8344
5-Band Medium589.31.0181
5-Band Medium / High536.11.1193
5-Band High505.21.1876
ORC Ref  04560002CQDIssued on 21/02/2023Valid until 12/02/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MADRONA

USA 79067

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassCustomMeasurementHINPlan reviewHull constructionCarbonCarbon RudderYesLight stanchionsNoTrim tabNo
LOA12.368Max. Beam3.508Draft2.691Displacement4,621Wetted area26.99IMS L11.160LSM010.887Acc. length11.401Sink (kg/mm) 21.64
VCGD-0.142VCGM-0.049RM Rated (kg·m) 145.6Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.436PBW0.118PIPA0.0028
EDL3.387ST10.048ST20.180
ST30.180ST40.092ST50.253
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritYesNon-circular riggingNoFiber riggingYesRunners/Checkstays1Spreaders2Rotating mastNo
P14.937IG15.395ISP16.811MDT10.120MDL10.236MDT20.102MDL20.183TL2.364MW0.183GO0.247
E5.210J4.602BAS1.665FSDNo FoilSFJ0.390SPL0.000WPLTPS6.990BD0.230MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date09/10/2019MeasurerComment
SFFP0.593FFMFF1.334LCFcl6.907SG1.0000
SAFP12.050FAMFA1.005LCFsh7.126HBI1.166
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002CQDIssued on 21/02/2023Valid until 12/02/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
2023

Boat

MADRONA

USA 79067

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain 230.201.192.043.334.4146.7530/01/2023Main10.021.202.073.334.2646.13
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ2-220.050.681.312.503.624.6514.95YesNo 36.3706/02/2023Jib-190.080.641.192.283.334.3015.04YesNo 33.66
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentAsymm18.4015.4016.909.109.6594%129.71
ORC Ref  04560002CQDIssued on 21/02/2023Valid until 12/02/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org