Club Certificate2025
YA KOU XIAO YINGCHN 45
ORC
Central Rating Office
Issuing certificates for
CHINA
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 Angles45.1°45.1°43.1°41.7°40.2°38.9°38.3°38.3°38.8°
Beat VMG2.383.344.144.755.215.515.655.775.76
52°3.805.216.297.057.537.817.978.098.13
60°4.105.556.617.327.748.008.178.338.39
75°4.305.786.837.507.908.188.408.718.85
90°4.115.686.917.708.158.438.618.929.25
110°4.175.797.077.868.328.719.069.6510.05
120°4.045.636.907.738.238.649.039.8110.68
135°3.514.996.267.257.898.328.729.5410.54
150°2.894.185.356.377.207.788.178.849.53
Run VMG2.513.624.635.516.246.767.207.908.47
Gybe Angles142.4°142.4°146.5°147.9°150.1°153.0°158.3°164.2°163.3°
APH ToD:535.1CDL: 10.547APH ToT: 1.1214CertNo:
BOAT
ClassELAN 45 IMPRESSIONDesignerBuilderAge date01/2019Series date01/2004Offset fileELAN45.OFFData fileCHNE45
HULL
Length Overall13.440 mMaximum Beam4.156 mDraft2.064 mDisplacement10,100 kgDLR6.6011IMS DivisionCruiser/RacerDynamic Allowance0.340%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 3 bladesDiameter0.300m
CREW
Maximum weight935 kg(declared)Minimum weight795 kg ✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail45.2645.94Headsail Luffed49.1849.18Headsail FlyingSymmetricAsymmetric125.21125.21 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail13.91Storm Jib12.02Heavy Weather Jib32.44
SAIL LIMITS
Headsails6
✱ One set on the forestay
Spinnakers5
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
YA KOU XIAO YINGCHN 45
ORC
Central Rating Office
Issuing certificates for
CHINA
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 VMG1510.21077.0870.1758.3690.5653.4637.0623.8624.9
52°948.4691.4572.3510.6477.9460.8451.7444.7442.8
60°877.7648.2544.4492.1465.2450.0440.5432.2428.9
75°837.8623.1527.5480.0455.4440.0428.6413.4406.6
90°876.7633.6520.9467.5441.9426.8417.9403.6389.1
110°864.0621.5509.2458.2432.5413.5397.4373.0358.2
120°890.3639.4522.1465.6437.4416.7398.6366.8336.9
135°1025.5721.9575.0496.9456.5432.5412.7377.5341.7
150°1243.8861.2673.0565.5499.9463.0440.6407.2377.6
Run VMG1436.1994.4777.1653.0577.1532.2499.9455.8424.8
Selected Courses
Windward / Leeward1472.71035.7823.6705.6633.8592.8568.4539.8524.8
All purpose1108.0790.0638.3558.0512.4485.8468.9447.0432.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward667.80.8984
All purpose535.11.1214
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7909
Downwind "popa"0.9355
70% up, 30% down "Ilhabela"0.8294
30% up, 70% down "Ilhabela-inverso"0.8869
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Predominantly Upwind579.71.0349
Predominantly Downwind547.81.0952
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low714.20.8401
Triple Number AP Medium531.51.1288
Triple Number AP High464.91.2905
Triple Number Windward/Leeward Low972.20.6171
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Single Number Predominant Upwind606.10.9899
Single Number Predominant Reaching533.61.1244
Single Number Predominant Downwind574.21.0450
Predominant Upwind - Low877.20.6840
Predominant Upwind - Low/Med651.10.9215
Predominant Upwind - Medium557.11.0770
Predominant Upwind - Med/High508.61.1797
Predominant Upwind - High490.61.2230
Predominant Downwind Low865.40.6933
Predominant Downwind Low/Med626.80.9573
Predominant Downwind Medium525.01.1428
Predominant Downwind Med/High466.31.2868
Predominant Downwind High434.51.3808
Predominant Reaching Low771.60.7776
Predominant Reaching Low/Med572.51.0480
Predominant Reaching Medium492.01.2195
Predominant Reaching Med/High448.61.3376
Predominant Reaching High426.01.4085
SA/DSPL Upwind20.06SA/DSPL Downwind36.20
Scoring OptionTODTOT
5-Band Windward/Leeward Low1092.00.5494
5-Band Windward/Leeward Low/Med785.30.7641
5-Band Windward/Leeward Medium649.30.9240
5-Band Windward/Leeward Med/High573.21.0468
5-Band Windward/Leeward High542.11.1067
Windward/Leeward 60-40 Low1100.30.5453
Windward/Leeward 60-40 Low/Med795.10.7546
Windward/Leeward 60-40 Medium660.70.9081
Windward/Leeward 60-40 Med/High586.91.0222
Windward/Leeward 60-40 High559.01.0734
5-Band AP Low790.60.7589
5-Band AP Low/Med613.80.9776
5-Band AP Medium522.41.1485
5-Band AP Med/High471.71.2719
5-Band AP High448.31.3384
5-Band SF Bay Tour - Low938.00.6397
5-Band SF Bay Tour - Low/Med749.40.8006
5-Band SF Bay Tour - Medium624.10.9615
5-Band SF Bay Tour - Med/High554.91.0812
5-Band SF Bay Tour - High526.71.1393
Chicago-Mac Upwind0.9529
Chicago-Mac All Purpose0.9820
Chicago-Mac Downwind1.0040
Bayview-Mac Cove Island0.6990
Bayview-Mac Shore0.7038
Harvest Moon Regatta461.01.3015
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance585.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating585.61.0245
FinRating, kevyt tuuli1070.70.9340
FinRating, kova tuuli451.31.1080
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0245
Triple Number Coastal/Long Distance Low0.8401
Triple Number Coastal/Long Distance Medium1.1290
Triple Number Coastal/Long Distance High1.2905
Triple Number Windward/Leeward Low0.6454
Triple Number Windward/Leeward Medium0.9045
Triple Number Windward/Leeward High1.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
For information
General Purpose Handicap (GPH)606.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low714.2
Triple Number Coastal/Long Distance Medium531.4
Triple Number Coastal/Long Distance High464.9
Triple Number Windward/Leeward Low929.7
Triple Number Windward/Leeward Medium663.3
Triple Number Windward/Leeward High563.8
Predominantly Upwind579.7
Predominantly Downwind547.8
Predominantly Reaching521.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8401
Triple Number Coastal/Long Distance Medium1.1290
Triple Number Coastal/Long Distance High1.2905
Triple Number Windward/Leeward Low0.6454
Triple Number Windward/Leeward Medium0.9045
Triple Number Windward/Leeward High1.0643
Coastal/Long Distance1.0245
Predominantly Upwind1.0349
Predominantly Downwind1.0952
For information
General Purpose Handicap (GPH)606.1
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1214
Distanseseilas Trippeltall svak vind0.8401
Distanseseilas Trippeltall mellomvind1.1290
Distanseseilas Trippeltall sterk vind1.2905
Pølsebane Trippeltall svak vind0.6454
Pølsebane Trippeltall mellomvind0.9045
Pølsebane Trippeltall sterk vind1.0643
Motvind Singeltall1.0349
Medvind Singeltall1.0952
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Coastal/Long Distance585.61.0245
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind579.71.0349
Predominantly Downwind547.81.0952
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore529.31.1336
Cape Doctor Coastal436.81.3735
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8401
Triple Number Coastal/Long Distance Medium1.1290
Triple Number Coastal/Long Distance High1.2905
Triple Number Windward/Leeward Low0.6454
Triple Number Windward/Leeward Medium0.9045
Triple Number Windward/Leeward High1.0643
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8401
Triple Number Coastal/Long Distance Medium1.1290
Triple Number Coastal/Long Distance High1.2905
Triple Number Windward/Leeward Low0.6454
Triple Number Windward/Leeward Medium0.9045
Triple Number Windward/Leeward High1.0643
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Predominantly Upwind579.71.0349
Predominantly Downwind547.81.0952
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.61.0245
Triple Number Coastal/Long Distance Low714.20.8401
Triple Number Coastal/Long Distance Medium531.41.1290
Triple Number Coastal/Long Distance High464.91.2905
Triple Number Windward/Leeward Low929.70.6454
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1563.71031.6771.9632.4548.3504.3474.0429.2412.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low714.20.8401
Triple Number AP Medium531.51.1288
Triple Number AP High464.91.2905
Triple Number Windward/Leeward Low972.20.6171
Triple Number Windward/Leeward Medium663.30.9045
Triple Number Windward/Leeward High563.81.0643
Single Number Predominant Upwind606.10.9899
Single Number Predominant Reaching533.61.1244
Single Number Predominant Downwind574.21.0450
Predominant Upwind - Low877.20.6840
Predominant Upwind - Low/Med651.10.9215
Predominant Upwind - Medium557.11.0770
Predominant Upwind - Med/High508.61.1797
Predominant Upwind - High490.61.2230
Predominant Downwind Low865.40.6933
Predominant Downwind Low/Med626.80.9573
Predominant Downwind Medium525.01.1428
Predominant Downwind Med/High466.31.2868
Predominant Downwind High434.51.3808
Predominant Reaching Low771.60.7776
Predominant Reaching Low/Med572.51.0480
Predominant Reaching Medium492.01.2195
Predominant Reaching Med/High448.61.3376
Predominant Reaching High426.01.4085
SA/DSPL Upwind20.06SA/DSPL Downwind36.20
Scoring OptionTODTOT
5-Band Windward/Leeward Low1092.00.5494
5-Band Windward/Leeward Low/Med785.30.7641
5-Band Windward/Leeward Medium649.30.9240
5-Band Windward/Leeward Med/High573.21.0468
5-Band Windward/Leeward High542.11.1067
Windward/Leeward 60-40 Low1100.30.5453
Windward/Leeward 60-40 Low/Med795.10.7546
Windward/Leeward 60-40 Medium660.70.9081
Windward/Leeward 60-40 Med/High586.91.0222
Windward/Leeward 60-40 High559.01.0734
5-Band AP Low790.60.7589
5-Band AP Low/Med613.80.9776
5-Band AP Medium522.41.1485
5-Band AP Med/High471.71.2719
5-Band AP High448.31.3384
5-Band SF Bay Tour - Low938.00.6397
5-Band SF Bay Tour - Low/Med749.40.8006
5-Band SF Bay Tour - Medium624.10.9615
5-Band SF Bay Tour - Med/High554.91.0812
5-Band SF Bay Tour - High526.71.1393
Chicago-Mac Upwind0.9529
Chicago-Mac All Purpose0.9820
Chicago-Mac Downwind1.0040
Bayview-Mac Cove Island0.6990
Bayview-Mac Shore0.7038
Harvest Moon Regatta461.01.3015
Club Certificate2025
YA KOU XIAO YINGCHN 45
ORC
Central Rating Office
Issuing certificates for
CHINA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassELAN 45 IMPRESSIONMeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA13.440Max. Beam4.156Draft2.064Displacement10,100Wetted area37.51IMS L11.742LSM011.522Acc. length13.440Sink (kg/mm) 27.87
VCGD-0.136VCGM-0.047RM Rated (kg·m) 272.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight843Declared crew weight935
PROPELLER
Propeller TypeFolding 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.300PBWPIPA0.0009
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P14.800IG15.500ISP15.500MDT10.130MDL10.180MDT2MDL2TLNo TaperMWGO
E5.370J4.780BAS1.990FSDNo FoilSFJ0.000SPLWPLTPS5.120BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered272.4Flotation Date21/11/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
YA KOU XIAO YINGCHN 45
ORC
Central Rating Office
Issuing certificates for
CHINA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.931.723.1645.26IRC 2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC0.751.493.096.6815.09NoNo 49.18IRC 2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment017.7015.8316.778.789.6991%125.21IRC 2024
CRUISER/RACER REQUIREMENTS*
Accommodation length13.4 mTable area0.66 m²Headroom1.87 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity222 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity118 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.