Club Certificate2025
Team ChuyongKOR2637
Korean Sailing Federation
Olympic Convention Center
Olympic-ro 424
Songpa-gu, Seoul, S.Korea
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles43.7°43.7°41.5°39.5°38.4°38.3°38.0°37.8°38.7°
Beat VMG2.723.854.795.355.605.735.835.935.88
52°4.305.927.137.727.978.108.208.328.36
60°4.626.267.407.958.228.378.498.668.73
75°4.836.477.578.138.508.788.969.259.43
90°4.566.277.528.128.588.989.339.8710.26
110°4.666.447.778.489.039.439.8110.5611.26
120°4.476.277.698.479.129.7510.3311.3412.43
135°3.795.537.068.048.769.5010.3212.4514.66
150°3.194.615.917.087.978.609.2510.9513.96
Run VMG2.763.995.126.136.927.468.019.4812.09
Gybe Angles141.1°141.1°144.0°146.8°151.6°151.6°149.9°146.2°144.7°
APH ToD:489.4CDL: 11.175APH ToT: 1.2259CertNo:011/25
BOAT
ClassMIKE MUIRDesignerMIKE MUIRBuilderAge date07/1991Series date07/1991Offset fileJ029.OFFData fileKOR2637
HULL
Length Overall13.024 mMaximum Beam4.236 mDraft2.334 mDisplacement5,214 kgDLR3.7586IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeSolid 2 bladesDiameter0.460m
CREW
Maximum weight804 kg(default)Minimum weight674 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail53.5454.68Headsail Luffed45.2145.21Headsail FlyingSymmetricAsymmetric150.72150.72 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail16.01Storm Jib10.63Heavy Weather Jib28.70
SAIL LIMITS
Headsails6Spinnakers5
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.
Club Certificate2025
Team ChuyongKOR2637
Korean Sailing Federation
Olympic Convention Center
Olympic-ro 424
Songpa-gu, Seoul, S.Korea
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1324.4934.0751.2672.6643.1627.7617.8607.2612.3
52°837.6607.9504.9466.1451.9444.3439.2432.5430.6
60°778.9575.1486.4453.0438.2430.0424.1415.9412.3
75°746.1556.5475.3442.9423.6410.0401.8389.2381.8
90°788.9573.9478.8443.1419.5400.8385.7364.6350.8
110°773.0559.1463.1424.5398.8381.8366.9341.0319.8
120°805.7573.9468.1425.0394.7369.2348.3317.5289.7
135°948.9651.0510.2447.6410.8379.0348.7289.1245.6
150°1128.7781.7609.5508.6451.7418.6389.0328.9257.8
Run VMG1303.8902.7703.7587.3520.4482.7449.2379.8297.7
Selected Courses
Windward / Leeward1314.1918.3727.4629.9581.8555.2533.5493.5455.0
All purpose991.1703.1568.0505.6473.2452.6435.7406.4381.8
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward608.20.9864
All purpose489.41.2259
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8653
Downwind "popa"1.0433
70% up, 30% down "Ilhabela"0.9120
30% up, 70% down "Ilhabela-inverso"0.9827
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Predominantly Upwind531.91.1281
Predominantly Downwind494.81.2126
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low635.60.9440
Triple Number AP Medium486.81.2326
Triple Number AP High429.01.3987
Triple Number Windward/Leeward Low862.30.6958
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Single Number Predominant Upwind555.11.0809
Single Number Predominant Reaching486.31.2338
Single Number Predominant Downwind517.41.1596
Predominant Upwind - Low775.70.7735
Predominant Upwind - Low/Med582.81.0295
Predominant Upwind - Medium515.61.1637
Predominant Upwind - Med/High480.41.2490
Predominant Upwind - High459.71.3051
Predominant Downwind Low779.50.7697
Predominant Downwind Low/Med565.11.0617
Predominant Downwind Medium477.81.2557
Predominant Downwind Med/High418.51.4337
Predominant Downwind High371.41.6155
Predominant Reaching Low693.00.8658
Predominant Reaching Low/Med519.21.1556
Predominant Reaching Medium453.71.3224
Predominant Reaching Med/High409.71.4645
Predominant Reaching High377.81.5883
SA/DSPL Upwind32.66SA/DSPL Downwind67.56
Scoring OptionTODTOT
5-Band Windward/Leeward Low969.50.6188
5-Band Windward/Leeward Low/Med699.70.8575
5-Band Windward/Leeward Medium593.41.0111
5-Band Windward/Leeward Med/High534.51.1226
5-Band Windward/Leeward High493.81.2152
Windward/Leeward 60-40 Low972.80.6168
Windward/Leeward 60-40 Low/Med706.60.8491
Windward/Leeward 60-40 Medium605.20.9914
Windward/Leeward 60-40 Med/High551.51.0879
Windward/Leeward 60-40 High517.01.1605
5-Band AP Low708.00.8475
5-Band AP Low/Med551.91.0872
5-Band AP Medium479.91.2503
5-Band AP Med/High436.81.3736
5-Band AP High407.21.4733
5-Band SF Bay Tour - Low829.30.7235
5-Band SF Bay Tour - Low/Med667.10.8994
5-Band SF Bay Tour - Medium570.41.0519
5-Band SF Bay Tour - Med/High516.41.1619
5-Band SF Bay Tour - High479.91.2502
Chicago-Mac Upwind1.0484
Chicago-Mac All Purpose1.0832
Chicago-Mac Downwind1.1130
Bayview-Mac Cove Island0.7783
Bayview-Mac Shore0.7836
Harvest Moon Regatta417.61.4369
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance533.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating533.61.1244
FinRating, kevyt tuuli953.41.0489
FinRating, kova tuuli407.61.2268
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.1244
Triple Number Coastal/Long Distance Low0.9440
Triple Number Coastal/Long Distance Medium1.2327
Triple Number Coastal/Long Distance High1.3987
Triple Number Windward/Leeward Low0.7291
Triple Number Windward/Leeward Medium0.9945
Triple Number Windward/Leeward High1.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
For information
General Purpose Handicap (GPH)551.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low635.6
Triple Number Coastal/Long Distance Medium486.7
Triple Number Coastal/Long Distance High429.0
Triple Number Windward/Leeward Low822.9
Triple Number Windward/Leeward Medium603.3
Triple Number Windward/Leeward High523.9
Predominantly Upwind531.9
Predominantly Downwind494.8
Predominantly Reaching473.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9440
Triple Number Coastal/Long Distance Medium1.2327
Triple Number Coastal/Long Distance High1.3987
Triple Number Windward/Leeward Low0.7291
Triple Number Windward/Leeward Medium0.9945
Triple Number Windward/Leeward High1.1452
Coastal/Long Distance1.1244
Predominantly Upwind1.1281
Predominantly Downwind1.2126
For information
General Purpose Handicap (GPH)551.1
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.2259
Distanseseilas Trippeltall svak vind0.9440
Distanseseilas Trippeltall mellomvind1.2327
Distanseseilas Trippeltall sterk vind1.3987
Pølsebane Trippeltall svak vind0.7291
Pølsebane Trippeltall mellomvind0.9945
Pølsebane Trippeltall sterk vind1.1452
Motvind Singeltall1.1281
Medvind Singeltall1.2126
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Coastal/Long Distance533.61.1244
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind531.91.1281
Predominantly Downwind494.81.2126
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore466.61.2860
Cape Doctor Coastal389.21.5417
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9440
Triple Number Coastal/Long Distance Medium1.2327
Triple Number Coastal/Long Distance High1.3987
Triple Number Windward/Leeward Low0.7291
Triple Number Windward/Leeward Medium0.9945
Triple Number Windward/Leeward High1.1452
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9440
Triple Number Coastal/Long Distance Medium1.2327
Triple Number Coastal/Long Distance High1.3987
Triple Number Windward/Leeward Low0.7291
Triple Number Windward/Leeward Medium0.9945
Triple Number Windward/Leeward High1.1452
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Predominantly Upwind531.91.1281
Predominantly Downwind494.81.2126
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance533.61.1244
Triple Number Coastal/Long Distance Low635.60.9440
Triple Number Coastal/Long Distance Medium486.71.2327
Triple Number Coastal/Long Distance High429.01.3987
Triple Number Windward/Leeward Low822.90.7291
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1400.2916.8684.1568.8505.6470.0439.2387.9362.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low635.60.9440
Triple Number AP Medium486.81.2326
Triple Number AP High429.01.3987
Triple Number Windward/Leeward Low862.30.6958
Triple Number Windward/Leeward Medium603.30.9945
Triple Number Windward/Leeward High523.91.1452
Single Number Predominant Upwind555.11.0809
Single Number Predominant Reaching486.31.2338
Single Number Predominant Downwind517.41.1596
Predominant Upwind - Low775.70.7735
Predominant Upwind - Low/Med582.81.0295
Predominant Upwind - Medium515.61.1637
Predominant Upwind - Med/High480.41.2490
Predominant Upwind - High459.71.3051
Predominant Downwind Low779.50.7697
Predominant Downwind Low/Med565.11.0617
Predominant Downwind Medium477.81.2557
Predominant Downwind Med/High418.51.4337
Predominant Downwind High371.41.6155
Predominant Reaching Low693.00.8658
Predominant Reaching Low/Med519.21.1556
Predominant Reaching Medium453.71.3224
Predominant Reaching Med/High409.71.4645
Predominant Reaching High377.81.5883
SA/DSPL Upwind32.66SA/DSPL Downwind67.56
Scoring OptionTODTOT
5-Band Windward/Leeward Low969.50.6188
5-Band Windward/Leeward Low/Med699.70.8575
5-Band Windward/Leeward Medium593.41.0111
5-Band Windward/Leeward Med/High534.51.1226
5-Band Windward/Leeward High493.81.2152
Windward/Leeward 60-40 Low972.80.6168
Windward/Leeward 60-40 Low/Med706.60.8491
Windward/Leeward 60-40 Medium605.20.9914
Windward/Leeward 60-40 Med/High551.51.0879
Windward/Leeward 60-40 High517.01.1605
5-Band AP Low708.00.8475
5-Band AP Low/Med551.91.0872
5-Band AP Medium479.91.2503
5-Band AP Med/High436.81.3736
5-Band AP High407.21.4733
5-Band SF Bay Tour - Low829.30.7235
5-Band SF Bay Tour - Low/Med667.10.8994
5-Band SF Bay Tour - Medium570.41.0519
5-Band SF Bay Tour - Med/High516.41.1619
5-Band SF Bay Tour - High479.91.2502
Chicago-Mac Upwind1.0484
Chicago-Mac All Purpose1.0832
Chicago-Mac Downwind1.1130
Bayview-Mac Cove Island0.7783
Bayview-Mac Shore0.7836
Harvest Moon Regatta417.61.4369
Club Certificate2025
Team ChuyongKOR2637
Korean Sailing Federation
Olympic Convention Center
Olympic-ro 424
Songpa-gu, Seoul, S.Korea
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMIKE MUIRMeasurement17/07/1991HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA13.024Max. Beam4.236Draft2.334Displacement5,214Wetted area30.02IMS L11.568LSM011.152Acc. length13.024Sink (kg/mm) 22.43
VCGD-0.174VCGM-0.163RM Rated (kg·m) 168.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight804Declared crew weightN/A
PROPELLER
Propeller TypeSolid 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.460PBW0.115PIPA0.0232
PSD0.025PHD0.046PHL0.116
PSA18.0°ESL0.884
ST10.034ST20.115ST30.125
ST40.045ST50.193
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays2CheckstaysSpreaders3Rotating mastNo
P15.660IG14.478ISP17.390MDT10.125MDL10.182MDT20.115MDL20.132TL2.128MW0.182GO0.214
E5.840J4.662BAS1.801FSDSFJSPLWPLTPS5.340BD0.225MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date27/03/2023
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Team ChuyongKOR2637
Korean Sailing Federation
Olympic Convention Center
Olympic-ro 424
Songpa-gu, Seoul, S.Korea
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.181.272.183.644.8053.5407/11/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment30.080.781.523.074.716.4014.40NoNo 45.2124/04/202500.180.771.452.924.486.1214.28NoNo 42.8529/08/202410.100.591.122.173.294.4814.45NoNo 32.04
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment318.6016.2917.4510.479.96105%150.7207/11/2024018.6916.3117.5010.0210.3397%147.0312/08/2022