Club
Certificate
Double Handed
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 Angles42.4°41.2°40.8°40.8°41.2°41.4°43.8°
Beat VMG3.483.854.054.174.214.224.06
52°5.285.776.036.186.256.286.20
60°5.596.086.326.456.536.576.55
75°5.876.406.636.776.856.916.96
90°5.856.516.816.987.107.197.29
110°5.586.436.767.027.227.387.63
120°5.496.466.937.167.347.507.77
135°4.996.126.827.227.567.888.29
150°4.135.236.226.897.297.678.51
Run VMG3.584.535.396.126.697.127.86
Gybe Angles137.4°148.7°151.4°159.2°175.4°179.0°178.1°

APH: 610.8

CDL: 7.423

GPH: 671.9

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 Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight170 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail35.7236.53Headsail Luffed32.6432.64Headsail FlyingSymmetric77.5377.53Asymmetric
STORM SAIL AREAS (m²)
Trysail10.24Storm Jib6.76Heavy Weather Jib18.23
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  03440002MB0Issued on 22/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 VMG1033.4934.9888.3864.2854.3853.9886.1
52°681.5623.4596.5582.7575.7573.1580.5
60°643.9591.7569.4557.8551.1547.6549.6
75°613.5562.1542.6532.0525.4520.9517.3
90°614.9553.2528.3515.5506.9500.8494.1
110°644.7559.9532.5513.1498.7487.5471.6
120°655.2557.1519.8503.1490.3479.7463.4
135°721.6588.2528.0498.8476.0457.0434.0
150°871.9688.3578.8522.8493.9469.3423.1
Run VMG1006.7794.8667.8588.0537.8505.9457.9
Selected Courses
Windward / Leeward1020.1864.9778.0726.1696.1679.9672.0
All purpose782.1676.3624.4595.3578.5568.1560.8
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward751.70.7982
All purpose610.80.9824
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6651
Downwind "popa"0.9213
70% up, 30% down "Ilhabela"0.7256
30% up, 70% down "Ilhabela-inverso"0.8258
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Predominantly Upwind673.00.8915
Predominantly Downwind593.31.0113
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low729.20.8228
Triple Number All Purpose Medium607.50.9876
Triple Number All Purpose High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Predominantly Upwind673.00.8915
Predominantly Downwind593.31.0113
Predominantly Upwind Low818.90.7327
Predominantly Upwind Medium713.70.8407
Predominantly Upwind High698.80.8586
Predominantly Downwind Low789.20.7603
Predominantly Downwind Medium577.51.0390
Predominantly Downwind High496.21.2093
Chicago-Mac Upwind0.8761
Chicago-Mac All Purpose0.9305
Chicago-Mac Downwind0.9944
Bayview-Mac Cove Island0.8864
Bayview-Mac Shore0.8827
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching569.51.0535
Predominantly Reaching Low653.50.9181
Predominantly Reaching Medium560.21.0710
Predominantly Reaching High518.01.1582
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1008.10.5952
5-Band Low / Medium879.30.6824
5-Band Medium737.40.8136
5-Band Medium / High685.20.8757
5-Band High673.30.8911
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance664.2
Triple Number Coastal/Long Distance Low729.2
Triple Number Coastal/Long Distance Medium607.5
Triple Number Coastal/Long Distance High568.0
Triple Number Windward/Leeward Low942.5
Triple Number Windward/Leeward Medium747.5
Triple Number Windward/Leeward High681.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8228
Triple Number Coastal/Long Distance Medium0.9876
Triple Number Coastal/Long Distance High1.0564
Triple Number Windward/Leeward Low0.6366
Triple Number Windward/Leeward Medium0.8027
Triple Number Windward/Leeward High0.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low729.2
Triple Number Coastal/Long Distance Medium607.5
Triple Number Coastal/Long Distance High568.0
Triple Number Windward/Leeward Low942.5
Triple Number Windward/Leeward Medium747.5
Triple Number Windward/Leeward High681.0
Predominantly Upwind673.0
Predominantly Downwind593.3
Predominantly Reaching576.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8228
Triple Number Coastal/Long Distance Medium0.9876
Triple Number Coastal/Long Distance High1.0564
Triple Number Windward/Leeward Low0.6366
Triple Number Windward/Leeward Medium0.8027
Triple Number Windward/Leeward High0.8811
Coastal/Long Distance0.9033
Predominantly Upwind0.8915
Predominantly Downwind1.0113
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8228
Tretall Distanseseilas Mellomvind0.9876
Tretall Distanseseilas Mye vind1.0564
Tretall Pølsebane Lite vind0.6366
Tretall Pølsebane Mellomvind0.8027
Tretall Pølsebane Mye vind0.8811
Distanseseilas ett tall (OSN 8-16kn)0.9033
Distanseseilas ett tall (APH 6-20kn)0.9824
Enkeltall Motvind0.8915
Enkeltall Medvind1.0113
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Coastal/Long Distance664.20.9033
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind673.00.8915
Predominantly Downwind593.31.0113
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore674.30.8898
Cape Doctor Coastal563.01.0657
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8228
Triple Number Coastal/Long Distance Medium0.9876
Triple Number Coastal/Long Distance High1.0564
Triple Number Windward/Leeward Low0.6366
Triple Number Windward/Leeward Medium0.8027
Triple Number Windward/Leeward High0.8811
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8228
Triple Number Coastal/Long Distance Medium0.9876
Triple Number Coastal/Long Distance High1.0564
Triple Number Windward/Leeward Low0.6366
Triple Number Windward/Leeward Medium0.8027
Triple Number Windward/Leeward High0.8811
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Predominantly Upwind673.00.8915
Predominantly Downwind593.31.0113
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance664.20.9033
Triple Number Coastal/Long Distance Low729.20.8228
Triple Number Coastal/Long Distance Medium607.50.9876
Triple Number Coastal/Long Distance High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1018.7811.4701.0636.6600.5572.3528.8
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low729.20.8228
Triple Number All Purpose Medium607.50.9876
Triple Number All Purpose High568.01.0564
Triple Number Windward/Leeward Low942.50.6366
Triple Number Windward/Leeward Medium747.50.8027
Triple Number Windward/Leeward High681.00.8811
Predominantly Upwind673.00.8915
Predominantly Downwind593.31.0113
Predominantly Upwind Low818.90.7327
Predominantly Upwind Medium713.70.8407
Predominantly Upwind High698.80.8586
Predominantly Downwind Low789.20.7603
Predominantly Downwind Medium577.51.0390
Predominantly Downwind High496.21.2093
Chicago-Mac Upwind0.8761
Chicago-Mac All Purpose0.9305
Chicago-Mac Downwind0.9944
Bayview-Mac Cove Island0.8864
Bayview-Mac Shore0.8827
Harvest Moon Regatta525.41.1420
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy673.40.8911
San Francisco Bay Medium741.40.8093
Predominantly Reaching569.51.0535
Predominantly Reaching Low653.50.9181
Predominantly Reaching Medium560.21.0710
Predominantly Reaching High518.01.1582
Windward/Leeward 60-40 Low950.80.6310
Windward/Leeward 60-40 Medium791.00.7585
Windward/Leeward 60-40 High743.90.8065
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1008.10.5952
5-Band Low / Medium879.30.6824
5-Band Medium737.40.8136
5-Band Medium / High685.20.8757
5-Band High673.30.8911
ORC Ref  03440002MB0Issued on 22/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 L8.875LSM08.896Acc. 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  03440002MB0Issued on 22/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
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
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment64-20060102170011.6011.6011.608.280.0077.5302/01/2006Målt og signert av Jan Hilmar Moe, målernr 64.64-20060614120011.2011.2011.200.000.0065.1814/06/2006Seilet er målt og signert i Trondheim 24/4-98.401-20060819160011.1611.1611.160.000.0064.9519/08/2006306
ORC Ref  03440002MB0Issued on 22/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org