International
Certificate
2023

Boat

NORTHERN SPY

NED 131

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°42.3°40.6°39.6°39.0°38.7°38.8°
Beat VMG3.854.695.275.555.715.805.87
52°5.917.037.717.998.138.218.29
60°6.257.317.938.228.358.448.54
75°6.487.498.088.428.648.788.95
90°6.497.628.258.608.819.049.38
110°6.277.468.188.679.089.4610.05
120°5.937.208.068.609.089.5210.33
135°5.316.607.598.248.739.2210.24
150°4.465.666.707.588.188.659.56
Run VMG3.864.905.806.617.297.888.79
Gybe Angles141.1°146.0°148.7°155.0°161.0°172.7°177.2°

APH: 502.1

CDL: 11.475

GPH: 564.3

CertNo: US7022

BOAT
ClassDUFOUR 45 EDesignerFELICI/ROSEOBuilderDUFOURAge date01/2009Series date01/2008Offset fileDUF45PER.OFFData fileUS7022
HULL
Length Overall13.600 mMaximum Beam4.298 mDraft2.288 mDisplacement10,574 kgDLR5.8729IMS DivisionCruiser/RacerDynamic Allowance0.030%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.480m
CREW
Maximum weight920 kgMinimum weight690 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail62.2563.48Headsail Luffed66.3466.34Headsail FlyingSymmetric146.58146.58Asymmetric143.73143.73 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail18.55Storm Jib15.54Heavy Weather Jib41.95
SAIL LIMITS
Headsails6  Spinnakers5 * Asymmetric may be tacked on the pole
STABILITY
Righting Moment318.7 kg·mStability Index114.7
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  04560002P57Issued on 26/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

NORTHERN SPY

NED 131

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 VMG934.9767.0682.9648.4630.9621.0613.0
52°608.9512.0467.2450.6443.1438.7434.1
60°576.1492.2453.9438.0431.0426.5421.5
75°555.5480.9445.8427.5416.5410.1402.1
90°554.8472.5436.3418.4408.6398.4383.8
110°574.5482.8440.1415.5396.3380.7358.2
120°606.7500.0446.9418.6396.4378.1348.4
135°677.6545.2474.4436.8412.3390.4351.4
150°806.7636.4537.3475.2439.9416.4376.5
Run VMG931.5734.9620.4544.3494.1456.8409.8
Selected Courses
Windward / Leeward933.2750.9651.6596.4562.5538.9511.4
All purpose712.6584.9519.0484.4463.4448.3427.8
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward623.00.9632
All purpose502.11.1949
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8575
Downwind "popa"1.0020
70% up, 30% down "Ilhabela"0.8963
30% up, 70% down "Ilhabela-inverso"0.9538
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Predominantly Upwind540.41.1103
Predominantly Downwind514.11.1671
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low648.80.9248
Triple Number All Purpose Medium499.01.2023
Triple Number All Purpose High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Predominantly Upwind540.41.1103
Predominantly Downwind514.11.1671
Predominantly Upwind Low717.10.8367
Predominantly Upwind Medium555.41.0803
Predominantly Upwind High518.41.1573
Predominantly Downwind Low718.70.8349
Predominantly Downwind Medium513.51.1683
Predominantly Downwind High424.41.4139
Chicago-Mac Upwind1.0909
Chicago-Mac All Purpose1.1154
Chicago-Mac Downwind1.1453
Bayview-Mac Cove Island1.0383
Bayview-Mac Shore1.0509
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching474.81.2638
Predominantly Reaching Low584.71.0262
Predominantly Reaching Medium470.61.2750
Predominantly Reaching High415.51.4441
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low919.10.6528
5-Band Low / Medium769.00.7802
5-Band Medium608.00.9869
5-Band Medium / High543.11.1048
5-Band High516.11.1625
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance548.6
Triple Number Coastal/Long Distance Low648.8
Triple Number Coastal/Long Distance Medium499.0
Triple Number Coastal/Long Distance High444.4
Triple Number Windward/Leeward Low842.1
Triple Number Windward/Leeward Medium619.2
Triple Number Windward/Leeward High534.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9248
Triple Number Coastal/Long Distance Medium1.2023
Triple Number Coastal/Long Distance High1.3501
Triple Number Windward/Leeward Low0.7125
Triple Number Windward/Leeward Medium0.9690
Triple Number Windward/Leeward High1.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low648.8
Triple Number Coastal/Long Distance Medium499.0
Triple Number Coastal/Long Distance High444.4
Triple Number Windward/Leeward Low842.1
Triple Number Windward/Leeward Medium619.2
Triple Number Windward/Leeward High534.5
Predominantly Upwind540.4
Predominantly Downwind514.1
Predominantly Reaching488.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9248
Triple Number Coastal/Long Distance Medium1.2023
Triple Number Coastal/Long Distance High1.3501
Triple Number Windward/Leeward Low0.7125
Triple Number Windward/Leeward Medium0.9690
Triple Number Windward/Leeward High1.1226
Coastal/Long Distance1.0937
Predominantly Upwind1.1103
Predominantly Downwind1.1671
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9248
Tretall Distanseseilas Mellomvind1.2023
Tretall Distanseseilas Mye vind1.3501
Tretall Pølsebane Lite vind0.7125
Tretall Pølsebane Mellomvind0.9690
Tretall Pølsebane Mye vind1.1226
Distanseseilas ett tall (OSN 8-16kn)1.0937
Distanseseilas ett tall (APH 6-20kn)1.1949
Enkeltall Motvind1.1103
Enkeltall Medvind1.1671
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Coastal/Long Distance548.61.0937
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind540.41.1103
Predominantly Downwind514.11.1671
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore519.61.1547
Cape Doctor Coastal434.01.3826
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9248
Triple Number Coastal/Long Distance Medium1.2023
Triple Number Coastal/Long Distance High1.3501
Triple Number Windward/Leeward Low0.7125
Triple Number Windward/Leeward Medium0.9690
Triple Number Windward/Leeward High1.1226
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9248
Triple Number Coastal/Long Distance Medium1.2023
Triple Number Coastal/Long Distance High1.3501
Triple Number Windward/Leeward Low0.7125
Triple Number Windward/Leeward Medium0.9690
Triple Number Windward/Leeward High1.1226
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Predominantly Upwind540.41.1103
Predominantly Downwind514.11.1671
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance548.61.0937
Triple Number Coastal/Long Distance Low648.80.9248
Triple Number Coastal/Long Distance Medium499.01.2023
Triple Number Coastal/Long Distance High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance933.0705.8586.1517.8481.4453.0409.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low648.80.9248
Triple Number All Purpose Medium499.01.2023
Triple Number All Purpose High444.41.3501
Triple Number Windward/Leeward Low842.10.7125
Triple Number Windward/Leeward Medium619.20.9690
Triple Number Windward/Leeward High534.51.1226
Predominantly Upwind540.41.1103
Predominantly Downwind514.11.1671
Predominantly Upwind Low717.10.8367
Predominantly Upwind Medium555.41.0803
Predominantly Upwind High518.41.1573
Predominantly Downwind Low718.70.8349
Predominantly Downwind Medium513.51.1683
Predominantly Downwind High424.41.4139
Chicago-Mac Upwind1.0909
Chicago-Mac All Purpose1.1154
Chicago-Mac Downwind1.1453
Bayview-Mac Cove Island1.0383
Bayview-Mac Shore1.0509
Harvest Moon Regatta434.11.3823
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy523.21.1468
San Francisco Bay Medium610.90.9821
Predominantly Reaching474.81.2638
Predominantly Reaching Low584.71.0262
Predominantly Reaching Medium470.61.2750
Predominantly Reaching High415.51.4441
Windward/Leeward 60-40 Low843.80.7110
Windward/Leeward 60-40 Medium635.00.9449
Windward/Leeward 60-40 High563.71.0643
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low919.10.6528
5-Band Low / Medium769.00.7802
5-Band Medium608.00.9869
5-Band Medium / High543.11.1048
5-Band High516.11.1625
ORC Ref  04560002P57Issued on 26/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

NORTHERN SPY

NED 131

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 45 EMeasurement26/05/2016HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA13.600Max. Beam4.298Draft2.288Displacement10,574Wetted area40.17IMS L12.342LSM012.164Acc. length13.600Sink (kg/mm) 30.80
VCGD0.084VCGM0.208RM Rated (kg·m) 318.7Limit of positive stability(°) 110.0Stability Index114.7
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.480PBW0.110PIPA0.0042
EDL3.160ST10.060ST20.175
ST30.175ST40.108ST50.340
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders3Rotating mastNo
P17.200IG17.556ISP18.060MDT10.140MDL10.250MDT20.140MDL20.180TL2.130MW0.260GO0.280
E6.160J4.980BAS1.810FSD0.035SFJ0.370SPL5.326WPLTPSBD0.220MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date26/05/2016MeasurerComment
SFFP0.474FFM1.600FF1.610LCFcl7.439SG1.0000
SAFP13.084FAM1.303FA1.311LCFsh7.729HBI1.382
W1145.1W2145.1W3145.1W4145.1
PD1224.0PD2224.0PD3224.0PD4224.0
WD13.870PLM2029.30GSA91.6RSA6939.8RM314.9
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG00.000.00Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGaAnchor00.00Total deductible0
ORC Ref  04560002P57Issued on 26/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

NORTHERN SPY

NED 131

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20221-10.171.232.243.935.1362.2503/02/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentL/M 10.110.941.833.665.427.3818.11NoNo 66.3403/02/202120221-20.100.831.663.315.006.7817.95NoNo 60.1403/02/2021
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment15458118.7218.7218.729.499.02146.5811/05/2021Q-S-2
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment15458019.4517.4518.459.299.5897%143.7316/05/2021Q-A-32022118.5016.8817.697.9710.6075%125.2502/02/2021CODE ZERO
ORC Ref  04560002P57Issued on 26/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org