Club
Certificate
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°5.596.496.937.137.237.307.37
60°5.886.717.107.307.417.487.56
75°6.066.857.237.477.637.737.87
90°5.966.817.257.527.747.918.16
110°5.716.797.347.697.978.218.59
120°5.526.637.267.647.968.268.87
135°4.946.086.907.387.748.068.75
150°4.135.236.176.917.367.708.34
Run VMG3.584.535.356.096.717.207.86
Gybe Angles143.3°147.8°152.3°158.6°171.8°178.1°179.0°

APH: 555.2

CDL: 9.366

GPH: 619.6

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 Allowance0.070%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 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  03440002KLIIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
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 VMG977.6816.9743.6712.8696.5686.9679.6
52°643.5554.7519.3504.9497.7493.3488.7
60°612.6536.9506.9493.0486.0481.4476.3
75°593.7525.9497.7482.1472.0465.7457.6
90°604.2528.7496.5478.4465.3455.1441.0
110°630.9530.2490.3468.4451.9438.4419.3
120°652.6543.1496.0471.0452.3435.9405.8
135°728.4592.3522.0487.6465.4446.6411.5
150°871.3688.4583.3521.1488.8467.3431.5
Run VMG1006.1794.9672.5591.1536.7500.2458.1
Selected Courses
Windward / Leeward991.9805.9708.0651.9616.6593.5568.9
All purpose761.4633.5571.4538.0517.7503.7485.0
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward678.50.8843
All purpose555.21.0806
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7904
Downwind "popa"0.9212
70% up, 30% down "Ilhabela"0.8256
30% up, 70% down "Ilhabela-inverso"0.8776
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Predominantly Upwind595.41.0078
Predominantly Downwind566.51.0592
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low697.40.8603
Triple Number All Purpose Medium552.01.0870
Triple Number All Purpose High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Predominantly Upwind595.41.0078
Predominantly Downwind566.51.0592
Predominantly Upwind Low764.50.7849
Predominantly Upwind Medium613.00.9788
Predominantly Upwind High578.61.0369
Predominantly Downwind Low774.70.7745
Predominantly Downwind Medium564.61.0627
Predominantly Downwind High475.81.2611
Chicago-Mac Upwind0.9910
Chicago-Mac All Purpose1.0126
Chicago-Mac Downwind1.0404
Bayview-Mac Cove Island0.9509
Bayview-Mac Shore0.9605
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching529.11.1340
Predominantly Reaching Low633.80.9467
Predominantly Reaching Medium524.31.1445
Predominantly Reaching High471.61.2724
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low977.50.6138
5-Band Low / Medium825.30.7270
5-Band Medium663.30.9046
5-Band Medium / High598.21.0030
5-Band High573.11.0469
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance603.7
Triple Number Coastal/Long Distance Low697.4
Triple Number Coastal/Long Distance Medium552.0
Triple Number Coastal/Long Distance High500.2
Triple Number Windward/Leeward Low898.9
Triple Number Windward/Leeward Medium674.6
Triple Number Windward/Leeward High590.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8603
Triple Number Coastal/Long Distance Medium1.0870
Triple Number Coastal/Long Distance High1.1996
Triple Number Windward/Leeward Low0.6675
Triple Number Windward/Leeward Medium0.8894
Triple Number Windward/Leeward High1.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low697.4
Triple Number Coastal/Long Distance Medium552.0
Triple Number Coastal/Long Distance High500.2
Triple Number Windward/Leeward Low898.9
Triple Number Windward/Leeward Medium674.6
Triple Number Windward/Leeward High590.0
Predominantly Upwind595.4
Predominantly Downwind566.5
Predominantly Reaching542.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8603
Triple Number Coastal/Long Distance Medium1.0870
Triple Number Coastal/Long Distance High1.1996
Triple Number Windward/Leeward Low0.6675
Triple Number Windward/Leeward Medium0.8894
Triple Number Windward/Leeward High1.0169
Coastal/Long Distance0.9938
Predominantly Upwind1.0078
Predominantly Downwind1.0592
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8603
Tretall Distanseseilas Mellomvind1.0870
Tretall Distanseseilas Mye vind1.1996
Tretall Pølsebane Lite vind0.6675
Tretall Pølsebane Mellomvind0.8894
Tretall Pølsebane Mye vind1.0169
Distanseseilas ett tall (OSN 8-16kn)0.9938
Distanseseilas ett tall (APH 6-20kn)1.0806
Enkeltall Motvind1.0078
Enkeltall Medvind1.0592
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Coastal/Long Distance603.70.9938
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind595.41.0078
Predominantly Downwind566.51.0592
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore576.31.0412
Cape Doctor Coastal490.61.2230
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8603
Triple Number Coastal/Long Distance Medium1.0870
Triple Number Coastal/Long Distance High1.1996
Triple Number Windward/Leeward Low0.6675
Triple Number Windward/Leeward Medium0.8894
Triple Number Windward/Leeward High1.0169
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8603
Triple Number Coastal/Long Distance Medium1.0870
Triple Number Coastal/Long Distance High1.1996
Triple Number Windward/Leeward Low0.6675
Triple Number Windward/Leeward Medium0.8894
Triple Number Windward/Leeward High1.0169
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Predominantly Upwind595.41.0078
Predominantly Downwind566.51.0592
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance603.70.9938
Triple Number Coastal/Long Distance Low697.40.8603
Triple Number Coastal/Long Distance Medium552.01.0870
Triple Number Coastal/Long Distance High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance993.3759.5641.0573.1536.9509.2465.7
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low697.40.8603
Triple Number All Purpose Medium552.01.0870
Triple Number All Purpose High500.21.1996
Triple Number Windward/Leeward Low898.90.6675
Triple Number Windward/Leeward Medium674.60.8894
Triple Number Windward/Leeward High590.01.0169
Predominantly Upwind595.41.0078
Predominantly Downwind566.51.0592
Predominantly Upwind Low764.50.7849
Predominantly Upwind Medium613.00.9788
Predominantly Upwind High578.61.0369
Predominantly Downwind Low774.70.7745
Predominantly Downwind Medium564.61.0627
Predominantly Downwind High475.81.2611
Chicago-Mac Upwind0.9910
Chicago-Mac All Purpose1.0126
Chicago-Mac Downwind1.0404
Bayview-Mac Cove Island0.9509
Bayview-Mac Shore0.9605
Harvest Moon Regatta488.51.2283
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy581.01.0327
San Francisco Bay Medium666.90.8997
Predominantly Reaching529.11.1340
Predominantly Reaching Low633.80.9467
Predominantly Reaching Medium524.31.1445
Predominantly Reaching High471.61.2724
Windward/Leeward 60-40 Low898.50.6677
Windward/Leeward 60-40 Medium692.70.8662
Windward/Leeward 60-40 High622.90.9633
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low977.50.6138
5-Band Low / Medium825.30.7270
5-Band Medium663.30.9046
5-Band Medium / High598.21.0030
5-Band High573.11.0469
ORC Ref  03440002KLIIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
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 L9.954LSM09.732Acc. 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  03440002KLIIssued on 05/05/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

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