Club
Certificate
Non Spinnaker
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 Angles42.9°40.8°39.4°38.7°38.1°37.6°37.5°
Beat VMG3.684.414.845.055.175.245.30
52°5.606.496.937.137.237.307.37
60°5.886.717.107.307.417.487.56
75°6.076.857.237.477.637.737.87
90°5.966.817.257.537.747.918.16
110°5.336.337.037.437.727.998.46
120°4.966.066.857.327.647.928.47
135°4.345.466.356.987.387.688.25
150°3.644.735.656.437.007.377.95
Run VMG3.164.094.925.676.366.917.60
Gybe Angles144.2°150.2°155.9°164.6°173.0°179.0°179.3°

APH: 571.4

CDL: 9.364

GPH: 641.1

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 Allowance0.140%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.400m
CREW
Maximum weight662 kgMinimum weight497 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail43.0243.64Headsail Luffed46.4146.41Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail13.06Storm Jib10.11Heavy Weather Jib27.29
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  03440002KNLIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 VMG977.4816.7743.5712.8696.5687.0679.7
52°643.3554.6519.3504.9497.8493.4488.8
60°612.4536.8506.9493.0486.1481.5476.4
75°593.5525.9497.6482.1472.0465.7457.7
90°603.9528.5496.5478.4465.3455.1441.0
110°675.6568.6512.1484.7466.2450.8425.3
120°726.0594.0525.2491.9471.2454.4424.9
135°829.7659.7567.1515.7487.9468.5436.1
150°987.8761.6637.4560.3514.6488.2452.9
Run VMG1140.6879.2731.4634.4565.8520.7473.8
Selected Courses
Windward / Leeward1059.0847.9737.5673.6631.2603.8576.8
All purpose804.5662.1590.5551.7527.8512.1492.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward702.80.8538
All purpose571.41.0500
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7904
Downwind "popa"0.8492
70% up, 30% down "Ilhabela"0.8072
30% up, 70% down "Ilhabela-inverso"0.8307
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Predominantly Upwind604.30.9928
Predominantly Downwind595.81.0071
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low733.30.8182
Triple Number All Purpose Medium567.91.0566
Triple Number All Purpose High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Predominantly Upwind604.30.9928
Predominantly Downwind595.81.0071
Predominantly Upwind Low783.70.7656
Predominantly Upwind Medium615.20.9752
Predominantly Upwind High580.01.0344
Predominantly Downwind Low844.60.7104
Predominantly Downwind Medium600.20.9996
Predominantly Downwind High493.21.2166
Chicago-Mac Upwind0.9760
Chicago-Mac All Purpose0.9797
Chicago-Mac Downwind0.9867
Bayview-Mac Cove Island0.9192
Bayview-Mac Shore0.9361
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching543.41.1041
Predominantly Reaching Low667.80.8984
Predominantly Reaching Medium541.11.1089
Predominantly Reaching High480.61.2484
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1042.70.5754
5-Band Low / Medium870.10.6896
5-Band Medium685.80.8749
5-Band Medium / High609.80.9840
5-Band High581.41.0319
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance623.7
Triple Number Coastal/Long Distance Low733.3
Triple Number Coastal/Long Distance Medium567.9
Triple Number Coastal/Long Distance High508.7
Triple Number Windward/Leeward Low953.4
Triple Number Windward/Leeward Medium698.8
Triple Number Windward/Leeward High600.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8182
Triple Number Coastal/Long Distance Medium1.0566
Triple Number Coastal/Long Distance High1.1794
Triple Number Windward/Leeward Low0.6293
Triple Number Windward/Leeward Medium0.8586
Triple Number Windward/Leeward High0.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low733.3
Triple Number Coastal/Long Distance Medium567.9
Triple Number Coastal/Long Distance High508.7
Triple Number Windward/Leeward Low953.4
Triple Number Windward/Leeward Medium698.8
Triple Number Windward/Leeward High600.5
Predominantly Upwind604.3
Predominantly Downwind595.8
Predominantly Reaching562.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8182
Triple Number Coastal/Long Distance Medium1.0566
Triple Number Coastal/Long Distance High1.1794
Triple Number Windward/Leeward Low0.6293
Triple Number Windward/Leeward Medium0.8586
Triple Number Windward/Leeward High0.9991
Coastal/Long Distance0.9620
Predominantly Upwind0.9928
Predominantly Downwind1.0071
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8182
Tretall Distanseseilas Mellomvind1.0566
Tretall Distanseseilas Mye vind1.1794
Tretall Pølsebane Lite vind0.6293
Tretall Pølsebane Mellomvind0.8586
Tretall Pølsebane Mye vind0.9991
Distanseseilas ett tall (OSN 8-16kn)0.9620
Distanseseilas ett tall (APH 6-20kn)1.0500
Enkeltall Motvind0.9928
Enkeltall Medvind1.0071
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Coastal/Long Distance623.70.9620
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind604.30.9928
Predominantly Downwind595.81.0071
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore584.91.0259
Cape Doctor Coastal498.51.2036
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8182
Triple Number Coastal/Long Distance Medium1.0566
Triple Number Coastal/Long Distance High1.1794
Triple Number Windward/Leeward Low0.6293
Triple Number Windward/Leeward Medium0.8586
Triple Number Windward/Leeward High0.9991
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8182
Triple Number Coastal/Long Distance Medium1.0566
Triple Number Coastal/Long Distance High1.1794
Triple Number Windward/Leeward Low0.6293
Triple Number Windward/Leeward Medium0.8586
Triple Number Windward/Leeward High0.9991
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Predominantly Upwind604.30.9928
Predominantly Downwind595.81.0071
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance623.70.9620
Triple Number Coastal/Long Distance Low733.30.8182
Triple Number Coastal/Long Distance Medium567.91.0566
Triple Number Coastal/Long Distance High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1067.1799.4665.6588.6547.7518.1474.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low733.30.8182
Triple Number All Purpose Medium567.91.0566
Triple Number All Purpose High508.71.1794
Triple Number Windward/Leeward Low953.40.6293
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High600.50.9991
Predominantly Upwind604.30.9928
Predominantly Downwind595.81.0071
Predominantly Upwind Low783.70.7656
Predominantly Upwind Medium615.20.9752
Predominantly Upwind High580.01.0344
Predominantly Downwind Low844.60.7104
Predominantly Downwind Medium600.20.9996
Predominantly Downwind High493.21.2166
Chicago-Mac Upwind0.9760
Chicago-Mac All Purpose0.9797
Chicago-Mac Downwind0.9867
Bayview-Mac Cove Island0.9192
Bayview-Mac Shore0.9361
Harvest Moon Regatta501.31.1969
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy592.11.0134
San Francisco Bay Medium690.50.8689
Predominantly Reaching543.41.1041
Predominantly Reaching Low667.80.8984
Predominantly Reaching Medium541.11.1089
Predominantly Reaching High480.61.2484
Windward/Leeward 60-40 Low942.20.6368
Windward/Leeward 60-40 Medium708.70.8467
Windward/Leeward 60-40 High629.80.9527
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1042.70.5754
5-Band Low / Medium870.10.6896
5-Band Medium685.80.8749
5-Band Medium / High609.80.9840
5-Band High581.41.0319
ORC Ref  03440002KNLIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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 L9.951LSM09.732Acc. 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  03440002KNLIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Non Spinnaker
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
ORC Ref  03440002KNLIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org