Club
Certificate
2023

Boat

DIFFERENT DRUMMER

USA 52804

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 Angles42.9°40.6°39.4°38.8°38.4°38.2°38.2°
Beat VMG3.894.655.045.245.355.425.44
52°5.896.857.307.497.607.667.71
60°6.187.107.537.717.817.887.94
75°6.397.267.707.948.088.188.30
90°6.277.217.728.048.278.468.69
110°5.967.157.808.188.508.719.06
120°5.777.007.728.178.558.919.47
135°5.166.417.347.908.328.739.59
150°4.335.506.517.327.858.259.05
Run VMG3.754.765.646.417.057.618.39
Gybe Angles141.2°146.6°149.6°155.9°164.6°176.6°179.0°

APH: 526.7

CDL: 10.413

GPH: 588.1

CertNo: US5280

BOAT
ClassCenturion 40SDesignerBerret/RacoupeauBuilderWauquiezAge date01/2007Series date01/2006Offset fileCEN40S.OFFData fileUSA52804
HULL
Length Overall12.330 mMaximum Beam3.848 mDraft2.304 mDisplacement8,471 kgDLR5.8470IMS DivisionCruiser/RacerDynamic Allowance0.040%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.430m
CREW
Maximum weight700 kgMinimum weight525 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail52.9554.34Headsail Luffed52.6052.60Headsail FlyingSymmetric110.42110.42Asymmetric109.07109.07 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail15.52Storm Jib12.83Heavy Weather Jib34.64
SAIL LIMITS
Headsails6  Spinnakers5 * Asymmetric may be tacked on the pole
STABILITY
Righting Moment167.7 kg·mStability Index118.7
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  03330002JUHIssued on 29/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

DIFFERENT DRUMMER

USA 52804

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 VMG926.0774.8714.3686.7672.3663.9661.4
52°611.3525.5492.9480.5473.9469.9466.7
60°582.3507.0478.1466.9460.8457.1453.2
75°563.7495.9467.4453.2445.4440.0433.7
90°574.4499.1466.1448.0435.3425.7414.2
110°604.4503.5461.7440.0423.6413.2397.2
120°623.8514.6466.2440.8421.0404.2380.1
135°697.7561.4490.7455.9432.9412.4375.4
150°831.0654.6552.8491.6458.8436.4397.6
Run VMG959.6755.8638.3561.7510.7473.3428.9
Selected Courses
Windward / Leeward942.8765.3676.3624.2591.5568.6545.1
All purpose724.6600.6542.0510.4490.9477.3460.0
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward648.60.9251
All purpose526.71.1391
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8236
Downwind "popa"0.9704
70% up, 30% down "Ilhabela"0.8628
30% up, 70% down "Ilhabela-inverso"0.9211
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Predominantly Upwind566.31.0595
Predominantly Downwind535.51.1205
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low662.60.9055
Triple Number All Purpose Medium523.61.1460
Triple Number All Purpose High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Predominantly Upwind566.31.0595
Predominantly Downwind535.51.1205
Predominantly Upwind Low725.50.8270
Predominantly Upwind Medium585.31.0251
Predominantly Upwind High555.11.0809
Predominantly Downwind Low737.20.8139
Predominantly Downwind Medium533.71.1243
Predominantly Downwind High446.21.3448
Chicago-Mac Upwind1.0411
Chicago-Mac All Purpose1.0677
Chicago-Mac Downwind1.0999
Bayview-Mac Cove Island1.0035
Bayview-Mac Shore1.0139
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching499.31.2018
Predominantly Reaching Low602.00.9967
Predominantly Reaching Medium494.51.2133
Predominantly Reaching High442.41.3564
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low929.10.6458
5-Band Low / Medium785.10.7642
5-Band Medium634.50.9456
5-Band Medium / High573.21.0467
5-Band High549.21.0925
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance573.1
Triple Number Coastal/Long Distance Low662.6
Triple Number Coastal/Long Distance Medium523.6
Triple Number Coastal/Long Distance High474.2
Triple Number Windward/Leeward Low854.1
Triple Number Windward/Leeward Medium645.2
Triple Number Windward/Leeward High565.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9055
Triple Number Coastal/Long Distance Medium1.1460
Triple Number Coastal/Long Distance High1.2652
Triple Number Windward/Leeward Low0.7025
Triple Number Windward/Leeward Medium0.9300
Triple Number Windward/Leeward High1.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low662.6
Triple Number Coastal/Long Distance Medium523.6
Triple Number Coastal/Long Distance High474.2
Triple Number Windward/Leeward Low854.1
Triple Number Windward/Leeward Medium645.2
Triple Number Windward/Leeward High565.5
Predominantly Upwind566.3
Predominantly Downwind535.5
Predominantly Reaching511.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9055
Triple Number Coastal/Long Distance Medium1.1460
Triple Number Coastal/Long Distance High1.2652
Triple Number Windward/Leeward Low0.7025
Triple Number Windward/Leeward Medium0.9300
Triple Number Windward/Leeward High1.0610
Coastal/Long Distance1.0469
Predominantly Upwind1.0595
Predominantly Downwind1.1205
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9055
Tretall Distanseseilas Mellomvind1.1460
Tretall Distanseseilas Mye vind1.2652
Tretall Pølsebane Lite vind0.7025
Tretall Pølsebane Mellomvind0.9300
Tretall Pølsebane Mye vind1.0610
Distanseseilas ett tall (OSN 8-16kn)1.0469
Distanseseilas ett tall (APH 6-20kn)1.1391
Enkeltall Motvind1.0595
Enkeltall Medvind1.1205
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Coastal/Long Distance573.11.0469
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind566.31.0595
Predominantly Downwind535.51.1205
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore552.21.0866
Cape Doctor Coastal465.21.2897
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9055
Triple Number Coastal/Long Distance Medium1.1460
Triple Number Coastal/Long Distance High1.2652
Triple Number Windward/Leeward Low0.7025
Triple Number Windward/Leeward Medium0.9300
Triple Number Windward/Leeward High1.0610
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9055
Triple Number Coastal/Long Distance Medium1.1460
Triple Number Coastal/Long Distance High1.2652
Triple Number Windward/Leeward Low0.7025
Triple Number Windward/Leeward Medium0.9300
Triple Number Windward/Leeward High1.0610
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Predominantly Upwind566.31.0595
Predominantly Downwind535.51.1205
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance573.11.0469
Triple Number Coastal/Long Distance Low662.60.9055
Triple Number Coastal/Long Distance Medium523.61.1460
Triple Number Coastal/Long Distance High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance944.5721.0610.2545.0509.4481.7440.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low662.60.9055
Triple Number All Purpose Medium523.61.1460
Triple Number All Purpose High474.21.2652
Triple Number Windward/Leeward Low854.10.7025
Triple Number Windward/Leeward Medium645.20.9300
Triple Number Windward/Leeward High565.51.0610
Predominantly Upwind566.31.0595
Predominantly Downwind535.51.1205
Predominantly Upwind Low725.50.8270
Predominantly Upwind Medium585.31.0251
Predominantly Upwind High555.11.0809
Predominantly Downwind Low737.20.8139
Predominantly Downwind Medium533.71.1243
Predominantly Downwind High446.21.3448
Chicago-Mac Upwind1.0411
Chicago-Mac All Purpose1.0677
Chicago-Mac Downwind1.0999
Bayview-Mac Cove Island1.0035
Bayview-Mac Shore1.0139
Harvest Moon Regatta458.61.3083
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy555.11.0808
San Francisco Bay Medium635.70.9438
Predominantly Reaching499.31.2018
Predominantly Reaching Low602.00.9967
Predominantly Reaching Medium494.51.2133
Predominantly Reaching High442.41.3564
Windward/Leeward 60-40 Low853.30.7032
Windward/Leeward 60-40 Medium663.70.9040
Windward/Leeward 60-40 High599.41.0010
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low929.10.6458
5-Band Low / Medium785.10.7642
5-Band Medium634.50.9456
5-Band Medium / High573.21.0467
5-Band High549.21.0925
ORC Ref  03330002JUHIssued on 29/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

DIFFERENT DRUMMER

USA 52804

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassCenturion 40SMeasurement21/04/2023HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA12.330Max. Beam3.848Draft2.304Displacement8,471Wetted area33.15IMS L11.368LSM011.315Acc. length12.330Sink (kg/mm) 24.27
VCGD0.080VCGM0.157RM Rated (kg·m) 167.7Limit of positive stability(°) 113.9Stability Index118.7
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.430PBW0.153PIPA0.0037
EDL2.830ST10.042ST20.180
ST30.180ST40.112ST50.270
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P15.027IG15.918ISP16.050MDT10.122MDL10.225MDT20.122MDL20.185TL0.690MW0.225GO0.252
E5.900J4.320BAS1.738FSD0.033SFJSPL4.406WPLTPS4.320BD0.190MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date21/04/2023MeasurerComment
SFFP0.400FFM1.456FF1.454LCFcl6.883SG1.0200
SAFP11.720FAM1.130FA1.141LCFsh7.138HBI1.289
W1116.6W2116.6W3116.6W4116.6LCFD6.087
PD1294.5PD2286.2PD3282.9PD4293.7
WD5.251PLM9000.00GSA1.0RSA1.0RM166.7
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1Fuel- behind engineFuel2201109.100.10Total deductible929.100.10
Total deductible
ORC Ref  03330002JUHIssued on 29/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

DIFFERENT DRUMMER

USA 52804

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.181.262.243.834.9652.9519/07/2019OUS134368-001
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentM/L10.080.831.613.254.966.6915.92NoNo 52.6031/03/2022OUS147415-001
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS216.4616.4616.468.058.05110.4222/08/2015OUS113510-001
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA1.516.9814.0515.528.468.34101%109.0715/09/2022
ORC Ref  03330002JUHIssued on 29/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org