Club Certificate2025
DARK MATTERRSA-3502
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
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 Angles43.3°43.3°41.2°39.4°38.2°37.5°37.3°37.3°38.1°
Beat VMG2.723.744.535.035.255.375.445.525.50
52°4.275.716.687.187.397.487.557.647.67
60°4.586.026.917.367.577.677.747.857.90
75°4.806.237.067.497.757.938.048.228.33
90°4.656.117.017.507.828.088.298.578.79
110°4.205.776.927.547.948.288.558.949.29
120°4.035.576.747.447.888.288.669.379.90
135°3.524.956.167.057.608.028.439.3310.66
150°2.844.125.296.317.127.628.018.819.81
Run VMG2.463.574.585.476.276.897.398.148.89
Gybe Angles144.0°144.0°148.9°151.3°158.1°165.5°172.7°177.7°176.3°
APH ToD:537.9CDL: 9.954APH ToT: 1.1155CertNo:ZAC039
BOAT
ClassFARR 40 AJAXDesignerBRUCE FARRBuilderAJAX RACING YACHTSAge date01/1993Series date01/1993Offset fileFARR_AJAX40.offData fileRSA3502
HULL
Length Overall12.250 mMaximum Beam3.702 mDraft1.978 mDisplacement6,130 kgDLR5.8848IMS DivisionPerformanceDynamic Allowance0.030%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.400m
CREW
Maximum weight702 kg(default)Minimum weight572 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail46.9048.57Headsail Luffed41.2741.27Headsail FlyingSymmetric86.9286.92Asymmetric
STORM SAIL AREAS (m²)
Trysail13.05Storm Jib8.00Heavy Weather Jib21.58
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
DARK MATTERRSA-3502
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
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 VMG1323.4962.4795.4715.6685.2670.2661.5651.7654.9
52°842.4630.0538.7501.2487.4481.0476.8471.1469.4
60°785.8598.0521.1489.3475.6469.3464.9458.4455.6
75°750.3577.9510.1480.7464.3454.2448.0438.0432.4
90°773.6589.0513.2480.1460.6445.8434.4419.9409.6
110°856.5624.2520.2477.3453.3434.9420.8402.5387.5
120°892.7646.6534.1483.9456.8435.0415.9384.3363.8
135°1024.1727.2584.8510.4473.6448.9427.1385.9337.7
150°1266.4874.4681.0570.4505.8472.6449.3408.7367.0
Run VMG1463.51009.6786.4658.1574.4522.2487.4442.0405.1
Selected Courses
Windward / Leeward1391.9986.0790.9686.9629.8596.2574.4546.9530.0
All purpose1039.4753.1620.1554.1519.7499.1484.7463.6447.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward658.70.9108
All purpose537.91.1155
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8168
Downwind "popa"0.9375
70% up, 30% down "Ilhabela"0.8496
30% up, 70% down "Ilhabela-inverso"0.8977
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Predominantly Upwind576.51.0407
Predominantly Downwind551.11.0887
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low686.60.8739
Triple Number AP Medium534.41.1227
Triple Number AP High480.41.2490
Triple Number Windward/Leeward Low928.50.6462
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Single Number Predominant Upwind598.21.0031
Single Number Predominant Reaching535.51.1205
Single Number Predominant Downwind576.01.0416
Predominant Upwind - Low810.00.7407
Predominant Upwind - Low/Med626.00.9585
Predominant Upwind - Medium559.21.0729
Predominant Upwind - Med/High526.51.1396
Predominant Upwind - High510.61.1751
Predominant Downwind Low847.80.7077
Predominant Downwind Low/Med625.40.9594
Predominant Downwind Medium531.61.1287
Predominant Downwind Med/High474.21.2654
Predominant Downwind High440.01.3636
Predominant Reaching Low733.70.8178
Predominant Reaching Low/Med566.71.0589
Predominant Reaching Medium502.11.1949
Predominant Reaching Med/High463.91.2933
Predominant Reaching High440.31.3628
SA/DSPL Upwind26.17SA/DSPL Downwind39.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1039.10.5774
5-Band Windward/Leeward Low/Med759.20.7903
5-Band Windward/Leeward Medium642.40.9339
5-Band Windward/Leeward Med/High578.11.0379
5-Band Windward/Leeward High548.71.0934
Windward/Leeward 60-40 Low1033.40.5806
Windward/Leeward 60-40 Low/Med762.50.7869
Windward/Leeward 60-40 Medium652.90.9190
Windward/Leeward 60-40 Med/High595.11.0081
Windward/Leeward 60-40 High569.81.0530
5-Band AP Low761.10.7884
5-Band AP Low/Med601.60.9974
5-Band AP Medium527.41.1377
5-Band AP Med/High486.51.2333
5-Band AP High464.51.2918
5-Band SF Bay Tour - Low890.70.6736
5-Band SF Bay Tour - Low/Med724.00.8288
5-Band SF Bay Tour - Medium620.40.9671
5-Band SF Bay Tour - Med/High565.11.0618
5-Band SF Bay Tour - High538.11.1150
Chicago-Mac Upwind0.9750
Chicago-Mac All Purpose0.9930
Chicago-Mac Downwind1.0032
Bayview-Mac Cove Island0.7281
Bayview-Mac Shore0.7351
Harvest Moon Regatta470.51.2753
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance585.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0248
Triple Number Coastal/Long Distance Low0.8739
Triple Number Coastal/Long Distance Medium1.1228
Triple Number Coastal/Long Distance High1.2490
Triple Number Windward/Leeward Low0.6753
Triple Number Windward/Leeward Medium0.9176
Triple Number Windward/Leeward High1.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
For information
General Purpose Handicap (GPH)602.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low686.6
Triple Number Coastal/Long Distance Medium534.4
Triple Number Coastal/Long Distance High480.4
Triple Number Windward/Leeward Low888.5
Triple Number Windward/Leeward Medium653.9
Triple Number Windward/Leeward High569.5
Predominantly Upwind576.5
Predominantly Downwind551.1
Predominantly Reaching526.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8739
Triple Number Coastal/Long Distance Medium1.1228
Triple Number Coastal/Long Distance High1.2490
Triple Number Windward/Leeward Low0.6753
Triple Number Windward/Leeward Medium0.9176
Triple Number Windward/Leeward High1.0535
Coastal/Long Distance1.0248
Predominantly Upwind1.0407
Predominantly Downwind1.0887
For information
General Purpose Handicap (GPH)602.7
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8739
Tretall Distanseseilas Mellomvind1.1228
Tretall Distanseseilas Mye vind1.2490
Tretall Pølsebane Lite vind0.6753
Tretall Pølsebane Mellomvind0.9176
Tretall Pølsebane Mye vind1.0535
Distanseseilas ett tall1.1155
Enkeltall Motvind1.0407
Enkeltall Medvind1.0887
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Coastal/Long Distance585.51.0248
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind576.51.0407
Predominantly Downwind551.11.0887
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore535.11.1213
Cape Doctor Coastal452.41.3264
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8739
Triple Number Coastal/Long Distance Medium1.1228
Triple Number Coastal/Long Distance High1.2490
Triple Number Windward/Leeward Low0.6753
Triple Number Windward/Leeward Medium0.9176
Triple Number Windward/Leeward High1.0535
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8739
Triple Number Coastal/Long Distance Medium1.1228
Triple Number Coastal/Long Distance High1.2490
Triple Number Windward/Leeward Low0.6753
Triple Number Windward/Leeward Medium0.9176
Triple Number Windward/Leeward High1.0535
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Predominantly Upwind576.51.0407
Predominantly Downwind551.11.0887
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance585.51.0248
Triple Number Coastal/Long Distance Low686.60.8739
Triple Number Coastal/Long Distance Medium534.41.1228
Triple Number Coastal/Long Distance High480.41.2490
Triple Number Windward/Leeward Low888.50.6753
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1490.6988.4745.2621.8553.5517.7489.8444.9429.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low686.60.8739
Triple Number AP Medium534.41.1227
Triple Number AP High480.41.2490
Triple Number Windward/Leeward Low928.50.6462
Triple Number Windward/Leeward Medium653.90.9176
Triple Number Windward/Leeward High569.51.0535
Single Number Predominant Upwind598.21.0031
Single Number Predominant Reaching535.51.1205
Single Number Predominant Downwind576.01.0416
Predominant Upwind - Low810.00.7407
Predominant Upwind - Low/Med626.00.9585
Predominant Upwind - Medium559.21.0729
Predominant Upwind - Med/High526.51.1396
Predominant Upwind - High510.61.1751
Predominant Downwind Low847.80.7077
Predominant Downwind Low/Med625.40.9594
Predominant Downwind Medium531.61.1287
Predominant Downwind Med/High474.21.2654
Predominant Downwind High440.01.3636
Predominant Reaching Low733.70.8178
Predominant Reaching Low/Med566.71.0589
Predominant Reaching Medium502.11.1949
Predominant Reaching Med/High463.91.2933
Predominant Reaching High440.31.3628
SA/DSPL Upwind26.17SA/DSPL Downwind39.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1039.10.5774
5-Band Windward/Leeward Low/Med759.20.7903
5-Band Windward/Leeward Medium642.40.9339
5-Band Windward/Leeward Med/High578.11.0379
5-Band Windward/Leeward High548.71.0934
Windward/Leeward 60-40 Low1033.40.5806
Windward/Leeward 60-40 Low/Med762.50.7869
Windward/Leeward 60-40 Medium652.90.9190
Windward/Leeward 60-40 Med/High595.11.0081
Windward/Leeward 60-40 High569.81.0530
5-Band AP Low761.10.7884
5-Band AP Low/Med601.60.9974
5-Band AP Medium527.41.1377
5-Band AP Med/High486.51.2333
5-Band AP High464.51.2918
5-Band SF Bay Tour - Low890.70.6736
5-Band SF Bay Tour - Low/Med724.00.8288
5-Band SF Bay Tour - Medium620.40.9671
5-Band SF Bay Tour - Med/High565.11.0618
5-Band SF Bay Tour - High538.11.1150
Chicago-Mac Upwind0.9750
Chicago-Mac All Purpose0.9930
Chicago-Mac Downwind1.0032
Bayview-Mac Cove Island0.7281
Bayview-Mac Shore0.7351
Harvest Moon Regatta470.51.2753
Club Certificate2025
DARK MATTERRSA-3502
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFARR 40 AJAXMeasurement19/06/2018HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.250Max. Beam3.702Draft1.978Displacement6,130Wetted area27.67IMS L10.408LSM010.136Acc. length12.031Sink (kg/mm) 21.21
VCGD0.100VCGM0.110RM Rated (kg·m) 150.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight702Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.400PBW0.100PIPA0.0028
PSD0.025PHD0.050PHL0.200
PSA0.3°ESL1.180
ST10.010ST20.100ST30.100
ST40.050ST50.180
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P13.625IG13.215ISP13.445MDT10.100MDL10.185MDT20.100MDL20.130TL1.825MW0.185GO
E5.470J4.080BAS1.645FSDFoilSFJ0.170SPL4.060WPLTPSBD0.220MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date15/07/2018
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
DARK MATTERRSA-3502
ORC
Central Rating Office
Issuing certificates for
SOUTH AFRICA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.491.522.403.704.6546.9019/06/2018
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.090.791.543.104.656.2913.23NoNo 41.2719/06/2018NEW20.080.791.282.313.364.1713.26YesNo 30.0019/06/2018NEW
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS413.4813.4813.487.767.6586.9219/06/2018