Club
Certificate
2023

Boat

Duppen

NOR 10750

Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.0°40.8°39.4°38.2°37.6°37.5°37.6°
Beat VMG3.233.914.394.674.794.854.89
52°4.915.786.306.566.696.766.82
60°5.156.016.466.716.866.947.02
75°5.296.156.596.857.047.197.36
90°5.176.116.646.937.107.297.62
110°5.116.166.717.067.367.627.98
120°4.935.996.626.997.307.618.20
135°4.415.466.276.737.077.398.07
150°3.734.785.666.346.767.077.69
Run VMG3.234.144.925.616.206.647.25
Gybe Angles145.7°150.5°154.1°160.4°173.6°179.0°179.0°

APH: 607.1

CDL: 7.997

GPH: 681.8

CertNo: 8279

BOAT
ClassELAN 31DesignerRob HuphreyBuilderElan marineAge date01/2004Series date01/2003Offset fileELAN31.OFFData file8279
HULL
Length Overall9.150 mMaximum Beam3.302 mDraft1.911 mDisplacement4,332 kgDLR7.1424IMS DivisionCruiser/RacerDynamic Allowance0.330%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.340m
CREW
Maximum weight543 kgMinimum weight407 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail28.2328.76Headsail Luffed25.2125.21Headsail FlyingSymmetric55.9455.94Asymmetric
STORM SAIL AREAS (m²)
Trysail8.59Storm Jib6.83Heavy Weather Jib18.44
SAIL LIMITS
Headsails5  Spinnakers4
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  03440002J9TIssued on 25/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Duppen

NOR 10750

Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1114.3920.1820.4771.5752.1741.8736.3
52°733.9622.6571.9548.8537.8532.3527.6
60°699.2599.4557.4536.6524.9518.7512.6
75°680.3585.4546.6525.8511.2500.6489.3
90°696.7589.1542.0519.3506.7493.7472.6
110°703.8584.4536.1510.0489.2472.3451.0
120°730.0600.8543.8515.2492.9472.9439.0
135°817.0658.9574.5534.5509.3487.2446.0
150°966.2753.1635.6567.6532.6509.0468.4
Run VMG1115.6869.5731.0641.5580.2541.8496.6
Selected Courses
Windward / Leeward1115.0894.8775.7706.5666.2641.8616.4
All purpose859.7704.4626.7584.8561.1545.0523.8
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward740.50.8102
All purpose607.10.9883
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7172
Downwind "popa"0.8440
70% up, 30% down "Ilhabela"0.7510
30% up, 70% down "Ilhabela-inverso"0.8015
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Predominantly Upwind652.70.9192
Predominantly Downwind620.50.9670
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low782.10.7672
Triple Number All Purpose Medium602.80.9953
Triple Number All Purpose High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Predominantly Upwind652.70.9192
Predominantly Downwind620.50.9670
Predominantly Upwind Low862.60.6956
Predominantly Upwind Medium670.10.8954
Predominantly Upwind High625.50.9593
Predominantly Downwind Low862.80.6954
Predominantly Downwind Medium615.80.9744
Predominantly Downwind High515.91.1630
Chicago-Mac Upwind0.9027
Chicago-Mac All Purpose0.9234
Chicago-Mac Downwind0.9498
Bayview-Mac Cove Island0.8591
Bayview-Mac Shore0.8689
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching580.01.0344
Predominantly Reaching Low712.80.8417
Predominantly Reaching Medium574.91.0437
Predominantly Reaching High511.31.1736
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1098.00.5464
5-Band Low / Medium916.60.6546
5-Band Medium721.50.8315
5-Band Medium / High647.10.9273
5-Band High620.80.9665
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance659.8
Triple Number Coastal/Long Distance Low782.1
Triple Number Coastal/Long Distance Medium602.8
Triple Number Coastal/Long Distance High541.1
Triple Number Windward/Leeward Low1004.9
Triple Number Windward/Leeward Medium735.2
Triple Number Windward/Leeward High638.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7672
Triple Number Coastal/Long Distance Medium0.9953
Triple Number Coastal/Long Distance High1.1089
Triple Number Windward/Leeward Low0.5971
Triple Number Windward/Leeward Medium0.8161
Triple Number Windward/Leeward High0.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low782.1
Triple Number Coastal/Long Distance Medium602.8
Triple Number Coastal/Long Distance High541.1
Triple Number Windward/Leeward Low1004.9
Triple Number Windward/Leeward Medium735.2
Triple Number Windward/Leeward High638.4
Predominantly Upwind652.7
Predominantly Downwind620.5
Predominantly Reaching594.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7672
Triple Number Coastal/Long Distance Medium0.9953
Triple Number Coastal/Long Distance High1.1089
Triple Number Windward/Leeward Low0.5971
Triple Number Windward/Leeward Medium0.8161
Triple Number Windward/Leeward High0.9399
Coastal/Long Distance0.9094
Predominantly Upwind0.9192
Predominantly Downwind0.9670
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7672
Tretall Distanseseilas Mellomvind0.9953
Tretall Distanseseilas Mye vind1.1089
Tretall Pølsebane Lite vind0.5971
Tretall Pølsebane Mellomvind0.8161
Tretall Pølsebane Mye vind0.9399
Distanseseilas ett tall (OSN 8-16kn)0.9094
Distanseseilas ett tall (APH 6-20kn)0.9883
Enkeltall Motvind0.9192
Enkeltall Medvind0.9670
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Coastal/Long Distance659.80.9094
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind652.70.9192
Predominantly Downwind620.50.9670
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore624.00.9615
Cape Doctor Coastal530.11.1318
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7672
Triple Number Coastal/Long Distance Medium0.9953
Triple Number Coastal/Long Distance High1.1089
Triple Number Windward/Leeward Low0.5971
Triple Number Windward/Leeward Medium0.8161
Triple Number Windward/Leeward High0.9399
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7672
Triple Number Coastal/Long Distance Medium0.9953
Triple Number Coastal/Long Distance High1.1089
Triple Number Windward/Leeward Low0.5971
Triple Number Windward/Leeward Medium0.8161
Triple Number Windward/Leeward High0.9399
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Predominantly Upwind652.70.9192
Predominantly Downwind620.50.9670
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance659.80.9094
Triple Number Coastal/Long Distance Low782.10.7672
Triple Number Coastal/Long Distance Medium602.80.9953
Triple Number Coastal/Long Distance High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1115.0842.9702.5622.5581.9551.3502.5
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low782.10.7672
Triple Number All Purpose Medium602.80.9953
Triple Number All Purpose High541.11.1089
Triple Number Windward/Leeward Low1004.90.5971
Triple Number Windward/Leeward Medium735.20.8161
Triple Number Windward/Leeward High638.40.9399
Predominantly Upwind652.70.9192
Predominantly Downwind620.50.9670
Predominantly Upwind Low862.60.6956
Predominantly Upwind Medium670.10.8954
Predominantly Upwind High625.50.9593
Predominantly Downwind Low862.80.6954
Predominantly Downwind Medium615.80.9744
Predominantly Downwind High515.91.1630
Chicago-Mac Upwind0.9027
Chicago-Mac All Purpose0.9234
Chicago-Mac Downwind0.9498
Bayview-Mac Cove Island0.8591
Bayview-Mac Shore0.8689
Harvest Moon Regatta532.31.1272
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy629.20.9537
San Francisco Bay Medium730.20.8217
Predominantly Reaching580.01.0344
Predominantly Reaching Low712.80.8417
Predominantly Reaching Medium574.91.0437
Predominantly Reaching High511.31.1736
Windward/Leeward 60-40 Low1007.30.5956
Windward/Leeward 60-40 Medium755.70.7940
Windward/Leeward 60-40 High673.70.8906
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1098.00.5464
5-Band Low / Medium916.60.6546
5-Band Medium721.50.8315
5-Band Medium / High647.10.9273
5-Band High620.80.9665
ORC Ref  03440002J9TIssued on 25/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Duppen

NOR 10750

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassELAN 31MeasurementHINPlan reviewHull constructionLightCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.150Max. Beam3.302Draft1.911Displacement4,332Wetted area19.99IMS L8.500LSM08.464Acc. length9.470Sink (kg/mm) 15.07
VCGD0.137VCGM0.076RM Rated (kg·m) 71.4Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.340PBWPIPA0.0032
EDL1.980ST10.045ST20.170
ST30.170ST40.170ST50.280
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P11.460IG11.685ISP11.750MDT10.090MDL10.160MDT20.087MDL20.110TL0.000MW0.160GO0.160
E4.280J3.280BAS1.507FSDFoilSFJ0.000SPL3.350WPLTPS0.000BDMWT111.20MCG3.870
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.137Flotation Date01/01/2015MeasurerComment
SFFP0.650FFMFF1.148LCFcl5.431SG1.0050
SAFP8.910FAMFA0.826LCFsh5.654HBI1.007
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002J9TIssued on 25/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Duppen

NOR 10750

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment267-2016060214050.140.861.532.633.4728.2302/06/2016
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment626-2019102109340.040.551.082.273.544.8310.78NoNo 25.2121/10/2019999-2005042913510.000.000.000.000.004.4610.87NoNo 24.6829/04/2005417-2019091211180.040.541.022.083.214.4010.82NoNo 23.1612/09/2019
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment235-20050423120211.4211.4211.425.840.0055.9423/04/2005
ORC Ref  03440002J9TIssued on 25/04/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org