Club
Certificate
Non Spinnaker
2023

Boat

Zephyr

NOR 9825

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 Angles41.8°40.0°39.4°39.0°38.8°38.8°39.6°
Beat VMG3.704.174.424.564.654.704.67
52°5.566.146.406.546.636.686.71
60°5.836.396.626.746.826.886.92
75°6.046.616.856.987.077.137.21
90°5.986.656.977.157.287.387.51
110°5.346.326.877.187.437.637.89
120°4.946.066.737.117.417.708.18
135°4.295.416.296.827.167.478.13
150°3.594.665.596.356.847.177.78
Run VMG3.114.044.875.626.306.787.41
Gybe Angles143.3°150.2°155.6°164.0°175.7°179.0°179.3°

APH: 601.7

CDL: 8.122

GPH: 668.9

CertNo: 7846

BOAT
ClassELVSTRØM 10,5DesignerElvstrøm/KjærulfBuilderAge date01/1984Series date01/1981Offset fileelv10_5cl.offData file7846
HULL
Length Overall10.500 mMaximum Beam2.402 mDraft1.672 mDisplacement4,242 kgDLR6.0233IMS DivisionCruiser/RacerDynamic Allowance0.090%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight583 kgMinimum weight437 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail35.7236.53Headsail Luffed32.6432.64Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail10.24Storm Jib6.76Heavy Weather Jib18.23
SAIL LIMITS
Headsails5  Spinnakers0 * Spinnaker pole aboard
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  03440002MC1Issued on 22/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

Zephyr

NOR 9825

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 VMG973.2862.8815.4789.0773.8765.8771.6
52°648.0586.1562.3550.2543.0538.7536.8
60°617.6563.1543.8533.9527.6523.5520.4
75°596.1544.4525.8515.9509.5504.7499.1
90°602.3541.3516.8503.2494.4487.7479.4
110°674.5569.5524.4501.4484.7471.6456.1
120°728.5594.5534.9506.4485.6467.8440.3
135°839.5665.4572.1527.8502.7481.8442.8
150°1004.0772.1643.8566.8526.6502.4462.8
Run VMG1159.3891.5739.9640.1571.8531.1486.1
Selected Courses
Windward / Leeward1066.3877.1777.6714.5672.8648.5628.9
All purpose808.7681.9619.7584.0562.2548.2532.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward741.80.8089
All purpose601.70.9972
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7302
Downwind "popa"0.8367
70% up, 30% down "Ilhabela"0.7592
30% up, 70% down "Ilhabela-inverso"0.8016
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Predominantly Upwind645.10.9301
Predominantly Downwind615.20.9754
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low745.30.8050
Triple Number All Purpose Medium598.61.0023
Triple Number All Purpose High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Predominantly Upwind645.10.9301
Predominantly Downwind615.20.9754
Predominantly Upwind Low801.10.7489
Predominantly Upwind Medium667.60.8988
Predominantly Upwind High640.30.9371
Predominantly Downwind Low857.90.6994
Predominantly Downwind Medium613.50.9779
Predominantly Downwind High510.21.1760
Chicago-Mac Upwind0.9147
Chicago-Mac All Purpose0.9340
Chicago-Mac Downwind0.9566
Bayview-Mac Cove Island0.8884
Bayview-Mac Shore0.8979
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching568.61.0553
Predominantly Reaching Low678.20.8847
Predominantly Reaching Medium564.21.0634
Predominantly Reaching High510.21.1761
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1051.70.5705
5-Band Low / Medium896.40.6693
5-Band Medium726.10.8264
5-Band Medium / High654.80.9162
5-Band High632.30.9490
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance656.6
Triple Number Coastal/Long Distance Low745.3
Triple Number Coastal/Long Distance Medium598.6
Triple Number Coastal/Long Distance High545.9
Triple Number Windward/Leeward Low971.7
Triple Number Windward/Leeward Medium738.6
Triple Number Windward/Leeward High647.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8050
Triple Number Coastal/Long Distance Medium1.0023
Triple Number Coastal/Long Distance High1.0992
Triple Number Windward/Leeward Low0.6175
Triple Number Windward/Leeward Medium0.8123
Triple Number Windward/Leeward High0.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low745.3
Triple Number Coastal/Long Distance Medium598.6
Triple Number Coastal/Long Distance High545.9
Triple Number Windward/Leeward Low971.7
Triple Number Windward/Leeward Medium738.6
Triple Number Windward/Leeward High647.2
Predominantly Upwind645.1
Predominantly Downwind615.2
Predominantly Reaching585.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8050
Triple Number Coastal/Long Distance Medium1.0023
Triple Number Coastal/Long Distance High1.0992
Triple Number Windward/Leeward Low0.6175
Triple Number Windward/Leeward Medium0.8123
Triple Number Windward/Leeward High0.9271
Coastal/Long Distance0.9138
Predominantly Upwind0.9301
Predominantly Downwind0.9754
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8050
Tretall Distanseseilas Mellomvind1.0023
Tretall Distanseseilas Mye vind1.0992
Tretall Pølsebane Lite vind0.6175
Tretall Pølsebane Mellomvind0.8123
Tretall Pølsebane Mye vind0.9271
Distanseseilas ett tall (OSN 8-16kn)0.9138
Distanseseilas ett tall (APH 6-20kn)0.9972
Enkeltall Motvind0.9301
Enkeltall Medvind0.9754
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Coastal/Long Distance656.60.9138
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind645.10.9301
Predominantly Downwind615.20.9754
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore634.80.9452
Cape Doctor Coastal537.31.1166
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8050
Triple Number Coastal/Long Distance Medium1.0023
Triple Number Coastal/Long Distance High1.0992
Triple Number Windward/Leeward Low0.6175
Triple Number Windward/Leeward Medium0.8123
Triple Number Windward/Leeward High0.9271
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8050
Triple Number Coastal/Long Distance Medium1.0023
Triple Number Coastal/Long Distance High1.0992
Triple Number Windward/Leeward Low0.6175
Triple Number Windward/Leeward Medium0.8123
Triple Number Windward/Leeward High0.9271
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Predominantly Upwind645.10.9301
Predominantly Downwind615.20.9754
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance656.60.9138
Triple Number Coastal/Long Distance Low745.30.8050
Triple Number Coastal/Long Distance Medium598.61.0023
Triple Number Coastal/Long Distance High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1075.6825.3699.9624.1583.0553.1508.1
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low745.30.8050
Triple Number All Purpose Medium598.61.0023
Triple Number All Purpose High545.91.0992
Triple Number Windward/Leeward Low971.70.6175
Triple Number Windward/Leeward Medium738.60.8123
Triple Number Windward/Leeward High647.20.9271
Predominantly Upwind645.10.9301
Predominantly Downwind615.20.9754
Predominantly Upwind Low801.10.7489
Predominantly Upwind Medium667.60.8988
Predominantly Upwind High640.30.9371
Predominantly Downwind Low857.90.6994
Predominantly Downwind Medium613.50.9779
Predominantly Downwind High510.21.1760
Chicago-Mac Upwind0.9147
Chicago-Mac All Purpose0.9340
Chicago-Mac Downwind0.9566
Bayview-Mac Cove Island0.8884
Bayview-Mac Shore0.8979
Harvest Moon Regatta523.71.1457
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy639.00.9390
San Francisco Bay Medium730.00.8219
Predominantly Reaching568.61.0553
Predominantly Reaching Low678.20.8847
Predominantly Reaching Medium564.21.0634
Predominantly Reaching High510.21.1761
Windward/Leeward 60-40 Low961.00.6244
Windward/Leeward 60-40 Medium759.60.7899
Windward/Leeward 60-40 High689.00.8709
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1051.70.5705
5-Band Low / Medium896.40.6693
5-Band Medium726.10.8264
5-Band Medium / High654.80.9162
5-Band High632.30.9490
ORC Ref  03440002MC1Issued on 22/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

Zephyr

NOR 9825

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassELVSTRØM 10,5MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.500Max. Beam2.402Draft1.672Displacement4,242Wetted area20.00IMS L9.081LSM08.896Acc. length7.806Sink (kg/mm) 13.11
VCGD0.000VCGM0.013RM Rated (kg·m) 38.2Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0033
EDL1.700ST10.040ST20.180
ST30.180ST40.110ST50.300
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2Rotating mastNo
P13.000IG11.620ISP11.620MDT10.090MDL10.120MDT20.000MDL20.000TLTaperMW0.000GO0.000
E4.500J3.800BAS1.150FSD0.000SFJ0.230SPL3.880WPLTPS0.000BDMWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.000Flotation Date01/01/2015MeasurerComment
SFFP0.699FFMFF1.000LCFcl6.063SG0.0000
SAFP9.680FAMFA0.800LCFsh6.179HBI0.925
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002MC1Issued on 22/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
2023

Boat

Zephyr

NOR 9825

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment421-2011053018000.160.971.783.023.8635.7230/05/2011421-2023042909160.140.771.492.653.5932.5928/04/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment421-2015050814170.000.001.362.724.135.6711.70NoNo 32.6430/04/2012Genua 1 Medium306-2005061318000.000.000.000.000.005.1711.49NoNo 30.2413/06/2005Målt og signert av Christen With 13/6-00.391-2019040823380.100.611.082.022.943.8411.63NoNo 23.2208/04/2019Seilet er målt av Bjørn Stien og målemerkei seilet er underskrevet av han. Kun registrert av meg.623-2020060823140.090.472.631.780.893.5411.68NoNo 19.6008/06/2020EM2
ORC Ref  03440002MC1Issued on 22/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org