Club
Certificate
Double Handed
2023

Boat

Kelso

NOR 6874

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 Angles42.6°40.6°40.5°39.6°39.4°39.3°39.4°
Beat VMG3.694.334.664.834.934.984.99
52°5.586.396.796.967.067.117.16
60°5.846.637.007.177.267.327.38
75°6.036.807.177.387.517.607.71
90°5.946.787.217.487.677.838.04
110°5.706.757.307.637.908.098.38
120°5.536.627.247.627.938.228.73
135°4.966.096.907.397.758.088.77
150°4.155.256.206.937.387.738.40
Run VMG3.594.555.386.116.727.217.90
Gybe Angles140.3°147.8°152.3°158.6°170.9°178.4°179.0°

APH: 563.7

CDL: 8.928

GPH: 627.0

CertNo: 5104

BOAT
ClassCROWN 39DesignerHåkan SödergrenBuilderFinngulf MarineAge date01/1986Series date01/1986Offset fileUS19868.BOFData file5104
HULL
Length Overall11.970 mMaximum Beam3.505 mDraft1.952 mDisplacement7,077 kgDLR7.6760IMS DivisionCruiser/RacerDynamic Allowance0.110%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.400m
CREW
Maximum weight170 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail43.0243.64Headsail Luffed46.4146.41Headsail FlyingSymmetric91.3891.38Asymmetric88.6388.63 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail13.06Storm Jib10.11Heavy Weather Jib27.29
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric may be tacked on the pole
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  03440002KMNIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Kelso

NOR 6874

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 VMG974.7832.1772.6744.6730.6722.4721.4
52°645.7563.0530.2517.2510.2506.1502.7
60°616.1542.8514.5502.3495.7491.7487.7
75°597.0529.7502.2487.7479.2473.6466.9
90°605.8531.4499.2481.5469.3460.0448.0
110°631.8533.1493.3471.7456.0444.9429.6
120°651.1543.9497.4472.3453.7437.8412.2
135°725.9590.7521.5487.4464.6445.5410.4
150°868.0685.2580.8519.7487.6465.6428.5
Run VMG1002.3791.2669.6589.1535.5499.0455.7
Selected Courses
Windward / Leeward988.5811.6721.1666.9633.0610.7588.6
All purpose760.6637.8579.4547.2527.7514.5497.9
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward692.00.8671
All purpose563.71.0643
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7639
Downwind "popa"0.9246
70% up, 30% down "Ilhabela"0.8059
30% up, 70% down "Ilhabela-inverso"0.8697
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Predominantly Upwind608.20.9866
Predominantly Downwind569.21.0541
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low699.20.8581
Triple Number All Purpose Medium560.61.0702
Triple Number All Purpose High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Predominantly Upwind608.20.9866
Predominantly Downwind569.21.0541
Predominantly Upwind Low768.50.7808
Predominantly Upwind Medium631.30.9504
Predominantly Upwind High601.50.9975
Predominantly Downwind Low773.80.7754
Predominantly Downwind Medium565.01.0619
Predominantly Downwind High476.91.2580
Chicago-Mac Upwind0.9698
Chicago-Mac All Purpose0.9997
Chicago-Mac Downwind1.0354
Bayview-Mac Cove Island0.9433
Bayview-Mac Shore0.9504
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching534.21.1231
Predominantly Reaching Low635.00.9448
Predominantly Reaching Medium528.61.1351
Predominantly Reaching High477.41.2569
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low974.90.6155
5-Band Low / Medium830.70.7223
5-Band Medium677.60.8855
5-Band Medium / High615.50.9748
5-Band High592.41.0129
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance612.9
Triple Number Coastal/Long Distance Low699.2
Triple Number Coastal/Long Distance Medium560.6
Triple Number Coastal/Long Distance High511.6
Triple Number Windward/Leeward Low900.1
Triple Number Windward/Leeward Medium688.5
Triple Number Windward/Leeward High608.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8581
Triple Number Coastal/Long Distance Medium1.0702
Triple Number Coastal/Long Distance High1.1729
Triple Number Windward/Leeward Low0.6666
Triple Number Windward/Leeward Medium0.8714
Triple Number Windward/Leeward High0.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low699.2
Triple Number Coastal/Long Distance Medium560.6
Triple Number Coastal/Long Distance High511.6
Triple Number Windward/Leeward Low900.1
Triple Number Windward/Leeward Medium688.5
Triple Number Windward/Leeward High608.0
Predominantly Upwind608.2
Predominantly Downwind569.2
Predominantly Reaching546.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8581
Triple Number Coastal/Long Distance Medium1.0702
Triple Number Coastal/Long Distance High1.1729
Triple Number Windward/Leeward Low0.6666
Triple Number Windward/Leeward Medium0.8714
Triple Number Windward/Leeward High0.9869
Coastal/Long Distance0.9789
Predominantly Upwind0.9866
Predominantly Downwind1.0541
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8581
Tretall Distanseseilas Mellomvind1.0702
Tretall Distanseseilas Mye vind1.1729
Tretall Pølsebane Lite vind0.6666
Tretall Pølsebane Mellomvind0.8714
Tretall Pølsebane Mye vind0.9869
Distanseseilas ett tall (OSN 8-16kn)0.9789
Distanseseilas ett tall (APH 6-20kn)1.0643
Enkeltall Motvind0.9866
Enkeltall Medvind1.0541
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Coastal/Long Distance612.90.9789
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind608.20.9866
Predominantly Downwind569.21.0541
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore595.21.0081
Cape Doctor Coastal502.81.1932
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8581
Triple Number Coastal/Long Distance Medium1.0702
Triple Number Coastal/Long Distance High1.1729
Triple Number Windward/Leeward Low0.6666
Triple Number Windward/Leeward Medium0.8714
Triple Number Windward/Leeward High0.9869
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8581
Triple Number Coastal/Long Distance Medium1.0702
Triple Number Coastal/Long Distance High1.1729
Triple Number Windward/Leeward Low0.6666
Triple Number Windward/Leeward Medium0.8714
Triple Number Windward/Leeward High0.9869
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Predominantly Upwind608.20.9866
Predominantly Downwind569.21.0541
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance612.90.9789
Triple Number Coastal/Long Distance Low699.20.8581
Triple Number Coastal/Long Distance Medium560.61.0702
Triple Number Coastal/Long Distance High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.9764.5651.3584.1547.5519.1475.1
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low699.20.8581
Triple Number All Purpose Medium560.61.0702
Triple Number All Purpose High511.61.1729
Triple Number Windward/Leeward Low900.10.6666
Triple Number Windward/Leeward Medium688.50.8714
Triple Number Windward/Leeward High608.00.9869
Predominantly Upwind608.20.9866
Predominantly Downwind569.21.0541
Predominantly Upwind Low768.50.7808
Predominantly Upwind Medium631.30.9504
Predominantly Upwind High601.50.9975
Predominantly Downwind Low773.80.7754
Predominantly Downwind Medium565.01.0619
Predominantly Downwind High476.91.2580
Chicago-Mac Upwind0.9698
Chicago-Mac All Purpose0.9997
Chicago-Mac Downwind1.0354
Bayview-Mac Cove Island0.9433
Bayview-Mac Shore0.9504
Harvest Moon Regatta491.91.2198
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy598.91.0019
San Francisco Bay Medium680.10.8823
Predominantly Reaching534.21.1231
Predominantly Reaching Low635.00.9448
Predominantly Reaching Medium528.61.1351
Predominantly Reaching High477.41.2569
Windward/Leeward 60-40 Low900.70.6661
Windward/Leeward 60-40 Medium712.10.8426
Windward/Leeward 60-40 High647.50.9267
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low974.90.6155
5-Band Low / Medium830.70.7223
5-Band Medium677.60.8855
5-Band Medium / High615.50.9748
5-Band High592.41.0129
ORC Ref  03440002KMNIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Kelso

NOR 6874

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassCROWN 39MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA11.970Max. Beam3.505Draft1.952Displacement7,077Wetted area27.76IMS L9.812LSM09.732Acc. length11.392Sink (kg/mm) 20.03
VCGD0.000VCGM-0.024RM Rated (kg·m) 141.4Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0033
EDL1.520ST10.048ST20.170
ST30.170ST40.098ST50.330
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P15.100IG14.150ISP14.150MDT10.130MDL10.180MDT20.100MDL20.130TL2.830MW0.180GO0.200
E4.940J4.300BAS1.470FSDFoilSFJ0.000SPL4.386WPLTPS0.000BDMWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.000Flotation Date01/01/2015MeasurerComment
SFFP0.857FFMFF1.259LCFcl6.651SG1.0050
SAFP10.665FAMFA1.006LCFsh6.878HBI1.121
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002KMNIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Kelso

NOR 6874

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment372-2013041312000.150.991.753.054.0343.0213/04/2013
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment372-2011081819100.000.000.000.000.006.4314.18NoNo 46.4118/08/2011Målt av 315 24/8-04306-2018121815030.080.781.513.034.626.2414.10NoNo 43.4618/12/2018315-2005060610120.000.000.000.000.005.9314.22NoNo 42.9210/09/2016Målt av måler 315- Orginalt serienummer 315-200506061012372-2013041312150.050.001.172.283.364.5513.59NoNo 30.9513/04/2013372-2011081819200.000.000.000.000.004.2013.80NoNo 29.5018/08/2011
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment315-20040824140013.8913.8913.890.000.0091.3824/08/2004455-20190619103714.0414.0414.047.607.4688.5919/06/2019Mål er hentet fra tidligere måling foretatt av måler 437 med kode 437-2009-04-29-12-00
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment306-20170407150114.7513.1013.937.617.7598%88.6307/04/2017
ORC Ref  03440002KMNIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org