Club
Certificate
2023

Boat

ARGO

USA 12

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles45.6°43.6°42.3°41.2°40.6°40.2°40.0°
Beat VMG3.524.354.975.385.585.705.79
52°5.526.667.457.918.168.288.39
60°5.927.027.748.178.418.548.67
75°6.207.277.968.378.658.859.09
90°6.087.197.958.468.809.079.42
110°5.877.218.128.659.049.389.90
120°5.727.058.018.599.019.4110.18
135°5.126.467.528.258.739.159.98
150°4.325.556.617.478.068.469.06
Run VMG3.744.815.736.476.987.338.29
Gybe Angles143.3°146.9°147.8°148.4°148.9°150.5°175.4°

APH: 514.8

CDL: 11.665

GPH: 582.4

CertNo: USA12

BOAT
ClassDUFOUR 50 CLASSICDesignerPoncin/BerretBuilderDUFOURAge date01/1998Series date01/1998Offset fileDUFO50CL.OFFData fileUSA12-50
HULL
Length Overall14.940 mMaximum Beam4.552 mDraft2.134 mDisplacement14,000 kgDLR6.0552IMS DivisionCruiser/RacerDynamic Allowance0.360%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 3 bladesDiameter0.533m
CREW
Maximum weight816 kgMinimum weight612 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail51.8052.54Headsail Luffed69.7469.74Headsail FlyingSymmetricAsymmetric151.73151.73 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail15.91Storm Jib16.17Heavy Weather Jib43.65
SAIL LIMITS
Headsails6 * Woven polyester sails  Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
Builder's displacement.
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  04560002MK8Issued on 24/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

ARGO

USA 12

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1022.6827.2724.0668.7644.7631.5622.1
52°652.1540.4483.5455.1441.4434.9429.3
60°608.4513.2465.0440.8427.9421.3415.3
75°580.5495.2452.2429.9416.2406.6395.9
90°592.0500.4452.9425.6409.0397.0382.4
110°613.0499.1443.3416.2398.3383.7363.5
120°629.9510.6449.6419.2399.4382.4353.5
135°703.1557.6478.8436.3412.2393.6360.7
150°833.3648.1544.6481.8446.6425.8397.5
Run VMG962.2748.4628.8556.3515.7491.5434.5
Selected Courses
Windward / Leeward992.4787.8676.4612.5580.2561.5528.3
All purpose756.0611.4534.6492.3469.8455.5434.8
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward646.00.9287
All purpose514.81.1655
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8170
Downwind "popa"0.9683
70% up, 30% down "Ilhabela"0.8572
30% up, 70% down "Ilhabela-inverso"0.9174
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Predominantly Upwind557.01.0772
Predominantly Downwind527.01.1385
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low683.70.8776
Triple Number All Purpose Medium510.71.1749
Triple Number All Purpose High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Predominantly Upwind557.01.0772
Predominantly Downwind527.01.1385
Predominantly Upwind Low766.40.7829
Predominantly Upwind Medium574.11.0451
Predominantly Upwind High523.21.1467
Predominantly Downwind Low747.50.8027
Predominantly Downwind Medium522.81.1476
Predominantly Downwind High439.21.3661
Chicago-Mac Upwind1.0544
Chicago-Mac All Purpose1.0827
Chicago-Mac Downwind1.1167
Bayview-Mac Cove Island0.9983
Bayview-Mac Shore1.0107
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching486.11.2344
Predominantly Reaching Low614.10.9770
Predominantly Reaching Medium481.01.2474
Predominantly Reaching High417.91.4358
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low976.60.6144
5-Band Low / Medium808.00.7426
5-Band Medium628.10.9552
5-Band Medium / High563.31.0652
5-Band High534.01.1235
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance563.6
Triple Number Coastal/Long Distance Low683.7
Triple Number Coastal/Long Distance Medium510.7
Triple Number Coastal/Long Distance High451.3
Triple Number Windward/Leeward Low890.1
Triple Number Windward/Leeward Medium640.3
Triple Number Windward/Leeward High553.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8776
Triple Number Coastal/Long Distance Medium1.1749
Triple Number Coastal/Long Distance High1.3295
Triple Number Windward/Leeward Low0.6741
Triple Number Windward/Leeward Medium0.9370
Triple Number Windward/Leeward High1.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low683.7
Triple Number Coastal/Long Distance Medium510.7
Triple Number Coastal/Long Distance High451.3
Triple Number Windward/Leeward Low890.1
Triple Number Windward/Leeward Medium640.3
Triple Number Windward/Leeward High553.7
Predominantly Upwind557.0
Predominantly Downwind527.0
Predominantly Reaching500.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8776
Triple Number Coastal/Long Distance Medium1.1749
Triple Number Coastal/Long Distance High1.3295
Triple Number Windward/Leeward Low0.6741
Triple Number Windward/Leeward Medium0.9370
Triple Number Windward/Leeward High1.0836
Coastal/Long Distance1.0646
Predominantly Upwind1.0772
Predominantly Downwind1.1385
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8776
Tretall Distanseseilas Mellomvind1.1749
Tretall Distanseseilas Mye vind1.3295
Tretall Pølsebane Lite vind0.6741
Tretall Pølsebane Mellomvind0.9370
Tretall Pølsebane Mye vind1.0836
Distanseseilas ett tall (OSN 8-16kn)1.0646
Distanseseilas ett tall (APH 6-20kn)1.1655
Enkeltall Motvind1.0772
Enkeltall Medvind1.1385
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Coastal/Long Distance563.61.0646
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind557.01.0772
Predominantly Downwind527.01.1385
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore538.31.1147
Cape Doctor Coastal441.01.3606
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8776
Triple Number Coastal/Long Distance Medium1.1749
Triple Number Coastal/Long Distance High1.3295
Triple Number Windward/Leeward Low0.6741
Triple Number Windward/Leeward Medium0.9370
Triple Number Windward/Leeward High1.0836
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8776
Triple Number Coastal/Long Distance Medium1.1749
Triple Number Coastal/Long Distance High1.3295
Triple Number Windward/Leeward Low0.6741
Triple Number Windward/Leeward Medium0.9370
Triple Number Windward/Leeward High1.0836
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Predominantly Upwind557.01.0772
Predominantly Downwind527.01.1385
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.61.0646
Triple Number Coastal/Long Distance Low683.70.8776
Triple Number Coastal/Long Distance Medium510.71.1749
Triple Number Coastal/Long Distance High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance989.4738.9606.2527.9488.5459.6414.1
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low683.70.8776
Triple Number All Purpose Medium510.71.1749
Triple Number All Purpose High451.31.3295
Triple Number Windward/Leeward Low890.10.6741
Triple Number Windward/Leeward Medium640.30.9370
Triple Number Windward/Leeward High553.71.0836
Predominantly Upwind557.01.0772
Predominantly Downwind527.01.1385
Predominantly Upwind Low766.40.7829
Predominantly Upwind Medium574.11.0451
Predominantly Upwind High523.21.1467
Predominantly Downwind Low747.50.8027
Predominantly Downwind Medium522.81.1476
Predominantly Downwind High439.21.3661
Chicago-Mac Upwind1.0544
Chicago-Mac All Purpose1.0827
Chicago-Mac Downwind1.1167
Bayview-Mac Cove Island0.9983
Bayview-Mac Shore1.0107
Harvest Moon Regatta442.21.3569
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy538.11.1150
San Francisco Bay Medium632.20.9490
Predominantly Reaching486.11.2344
Predominantly Reaching Low614.10.9770
Predominantly Reaching Medium481.01.2474
Predominantly Reaching High417.91.4358
Windward/Leeward 60-40 Low897.10.6688
Windward/Leeward 60-40 Medium658.70.9108
Windward/Leeward 60-40 High580.11.0343
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low976.60.6144
5-Band Low / Medium808.00.7426
5-Band Medium628.10.9552
5-Band Medium / High563.31.0652
5-Band High534.01.1235
ORC Ref  04560002MK8Issued on 24/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

ARGO

USA 12

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 50 CLASSICMeasurement21/05/2018HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA14.940Max. Beam4.552Draft2.134Displacement14,000Wetted area44.67IMS L13.357LSM013.222Acc. length14.794Sink (kg/mm) 34.58
VCGD0.152VCGM0.137RM Rated (kg·m) 382.5Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.533PBW0.115PIPA0.0038
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayFixedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P16.440IG17.980ISP17.980MDT10.140MDL10.275MDT2MDL2TLNo TaperMWGO
E5.530J5.576BAS1.885FSD0.050SFJ0.490SPLWPLTPS6.266BD0.220MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2013MeasurerComment
SFFP0.536FFMFF1.494LCFcl8.067SG1.0252
SAFP14.158FAMFA1.297LCFsh8.373HBI1.350
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002MK8Issued on 24/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

ARGO

USA 12

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.141.101.953.374.4251.8020/03/2022
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentAP-10.080.851.843.825.977.7218.03NoNo 69.7424/03/2022
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA219.6617.0218.3410.019.60104%151.7314/03/2023116.6214.9415.786.708.2381%92.1307/08/2018
ORC Ref  04560002MK8Issued on 24/05/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org