Double HandedClub Certificate2025
NenaNOR 6490
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 Angles41.7°41.7°40.1°40.1°39.9°39.7°39.5°39.7°41.8°
Beat VMG2.353.183.764.064.214.314.374.404.24
52°3.574.765.555.956.126.226.296.346.29
60°3.754.995.786.166.336.436.506.566.54
75°3.885.155.966.366.566.696.776.896.92
90°3.875.135.956.416.676.857.007.207.33
110°3.915.276.196.626.847.017.157.347.60
120°3.745.126.126.636.967.237.417.727.61
135°3.254.585.686.446.867.227.588.318.85
150°2.623.804.905.876.536.927.298.099.27
Run VMG2.273.294.245.095.826.346.747.438.22
Gybe Angles145.6°145.6°149.8°151.4°160.1°168.9°176.3°176.3°164.5°
APH ToD:627.7CDL: 7.081APH ToT: 0.9559CertNo:5027
BOAT
ClassAPHRODITE 101DesignerElvström/KjärulffBuilderBianca YachtsAge dateSeries date01/1976Offset fileE111.BOFData file5027
HULL
Length Overall9.950 mMaximum Beam2.444 mDraft1.745 mDisplacement3,183 kgDLR6.2280IMS DivisionCruiser/RacerDynamic Allowance0.210%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail24.8225.16Headsail Luffed19.2019.20Headsail FlyingSymmetric63.6163.61Asymmetric
STORM SAIL AREAS (m²)
Trysail7.35Storm Jib6.05Heavy Weather Jib16.34
SAIL LIMITS
Headsails5Spinnakers4
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.
Double HandedClub Certificate2025
NenaNOR 6490
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 VMG1529.11131.1956.7885.8854.2836.2824.2817.9848.9
52°1007.1755.8648.8605.0588.2578.8572.6567.6572.8
60°958.9722.0622.7584.2568.3560.1554.3549.0550.3
75°928.6699.6603.8566.3548.6538.5531.5522.8520.4
90°931.4701.9604.7562.0539.7525.3514.6499.7491.0
110°920.2683.2581.4543.9526.4513.8503.2490.6473.7
120°962.2703.3588.4543.0517.0498.2485.9466.4473.3
135°1106.6786.4634.2559.3524.9498.4474.9433.0406.7
150°1371.5946.4735.2613.7551.7520.1493.7445.0388.4
Run VMG1587.21092.8848.9707.9618.5567.7534.4484.7437.9
Selected Courses
Windward / Leeward1555.31111.9902.8796.8736.4702.0679.3651.3643.4
All purpose1177.9857.8711.6643.5608.3587.7572.8552.3544.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward767.00.7822
All purpose627.70.9559
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6660
Downwind "popa"0.8651
70% up, 30% down "Ilhabela"0.7154
30% up, 70% down "Ilhabela-inverso"0.7939
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Predominantly Upwind686.30.8743
Predominantly Downwind621.40.9656
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low784.70.7646
Triple Number AP Medium623.50.9623
Triple Number AP High568.81.0548
Triple Number Windward/Leeward Low1051.80.5704
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Single Number Predominant Upwind711.80.8429
Single Number Predominant Reaching620.50.9669
Single Number Predominant Downwind649.60.9237
Predominant Upwind - Low942.90.6364
Predominant Upwind - Low/Med740.00.8109
Predominant Upwind - Medium668.60.8973
Predominant Upwind - Med/High632.90.9480
Predominant Upwind - High619.20.9689
Predominant Downwind Low943.70.6358
Predominant Downwind Low/Med700.10.8570
Predominant Downwind Medium600.30.9995
Predominant Downwind Med/High541.01.1090
Predominant Downwind High507.11.1832
Predominant Reaching Low841.20.7133
Predominant Reaching Low/Med652.50.9196
Predominant Reaching Medium582.21.0305
Predominant Reaching Med/High542.01.1069
Predominant Reaching High519.51.1549
SA/DSPL Upwind20.27SA/DSPL Downwind40.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1171.20.5123
5-Band Windward/Leeward Low/Med871.70.6883
5-Band Windward/Leeward Medium749.80.8002
5-Band Windward/Leeward Med/High683.20.8782
5-Band Windward/Leeward High654.80.9163
Windward/Leeward 60-40 Low1174.30.5109
Windward/Leeward 60-40 Low/Med885.80.6774
Windward/Leeward 60-40 Medium772.30.7769
Windward/Leeward 60-40 Med/High712.10.8425
Windward/Leeward 60-40 High688.70.8712
5-Band AP Low864.40.6941
5-Band AP Low/Med693.90.8647
5-Band AP Medium616.30.9735
5-Band AP Med/High574.81.0438
5-Band AP High554.51.0821
5-Band SF Bay Tour - Low1010.20.5940
5-Band SF Bay Tour - Low/Med835.50.7181
5-Band SF Bay Tour - Medium728.70.8234
5-Band SF Bay Tour - Med/High671.40.8937
5-Band SF Bay Tour - High646.10.9286
Chicago-Mac Upwind0.8206
Chicago-Mac All Purpose0.8575
Chicago-Mac Downwind0.8920
Bayview-Mac Cove Island0.6370
Bayview-Mac Shore0.6417
Harvest Moon Regatta543.71.1035
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance681.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating681.10.8809
FinRating, kevyt tuuli1150.40.8693
FinRating, kova tuuli559.50.8936
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8809
Triple Number Coastal/Long Distance Low0.7646
Triple Number Coastal/Long Distance Medium0.9623
Triple Number Coastal/Long Distance High1.0548
Triple Number Windward/Leeward Low0.5956
Triple Number Windward/Leeward Medium0.7876
Triple Number Windward/Leeward High0.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
For information
General Purpose Handicap (GPH)699.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low784.7
Triple Number Coastal/Long Distance Medium623.5
Triple Number Coastal/Long Distance High568.8
Triple Number Windward/Leeward Low1007.4
Triple Number Windward/Leeward Medium761.8
Triple Number Windward/Leeward High674.5
Predominantly Upwind686.3
Predominantly Downwind621.4
Predominantly Reaching602.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7646
Triple Number Coastal/Long Distance Medium0.9623
Triple Number Coastal/Long Distance High1.0548
Triple Number Windward/Leeward Low0.5956
Triple Number Windward/Leeward Medium0.7876
Triple Number Windward/Leeward High0.8896
Coastal/Long Distance0.8809
Predominantly Upwind0.8743
Predominantly Downwind0.9656
For information
General Purpose Handicap (GPH)699.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9559
Distanseseilas Trippeltall svak vind0.7646
Distanseseilas Trippeltall mellomvind0.9623
Distanseseilas Trippeltall sterk vind1.0548
Pølsebane Trippeltall svak vind0.5956
Pølsebane Trippeltall mellomvind0.7876
Pølsebane Trippeltall sterk vind0.8896
Motvind Singeltall0.8743
Medvind Singeltall0.9656
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Coastal/Long Distance681.10.8809
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind686.30.8743
Predominantly Downwind621.40.9656
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore645.70.9292
Cape Doctor Coastal546.81.0974
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7646
Triple Number Coastal/Long Distance Medium0.9623
Triple Number Coastal/Long Distance High1.0548
Triple Number Windward/Leeward Low0.5956
Triple Number Windward/Leeward Medium0.7876
Triple Number Windward/Leeward High0.8896
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7646
Triple Number Coastal/Long Distance Medium0.9623
Triple Number Coastal/Long Distance High1.0548
Triple Number Windward/Leeward Low0.5956
Triple Number Windward/Leeward Medium0.7876
Triple Number Windward/Leeward High0.8896
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Predominantly Upwind686.30.8743
Predominantly Downwind621.40.9656
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance681.10.8809
Triple Number Coastal/Long Distance Low784.70.7646
Triple Number Coastal/Long Distance Medium623.50.9623
Triple Number Coastal/Long Distance High568.81.0548
Triple Number Windward/Leeward Low1007.40.5956
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1649.91110.0849.8720.9648.6608.9577.6528.5521.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low784.70.7646
Triple Number AP Medium623.50.9623
Triple Number AP High568.81.0548
Triple Number Windward/Leeward Low1051.80.5704
Triple Number Windward/Leeward Medium761.80.7876
Triple Number Windward/Leeward High674.50.8896
Single Number Predominant Upwind711.80.8429
Single Number Predominant Reaching620.50.9669
Single Number Predominant Downwind649.60.9237
Predominant Upwind - Low942.90.6364
Predominant Upwind - Low/Med740.00.8109
Predominant Upwind - Medium668.60.8973
Predominant Upwind - Med/High632.90.9480
Predominant Upwind - High619.20.9689
Predominant Downwind Low943.70.6358
Predominant Downwind Low/Med700.10.8570
Predominant Downwind Medium600.30.9995
Predominant Downwind Med/High541.01.1090
Predominant Downwind High507.11.1832
Predominant Reaching Low841.20.7133
Predominant Reaching Low/Med652.50.9196
Predominant Reaching Medium582.21.0305
Predominant Reaching Med/High542.01.1069
Predominant Reaching High519.51.1549
SA/DSPL Upwind20.27SA/DSPL Downwind40.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1171.20.5123
5-Band Windward/Leeward Low/Med871.70.6883
5-Band Windward/Leeward Medium749.80.8002
5-Band Windward/Leeward Med/High683.20.8782
5-Band Windward/Leeward High654.80.9163
Windward/Leeward 60-40 Low1174.30.5109
Windward/Leeward 60-40 Low/Med885.80.6774
Windward/Leeward 60-40 Medium772.30.7769
Windward/Leeward 60-40 Med/High712.10.8425
Windward/Leeward 60-40 High688.70.8712
5-Band AP Low864.40.6941
5-Band AP Low/Med693.90.8647
5-Band AP Medium616.30.9735
5-Band AP Med/High574.81.0438
5-Band AP High554.51.0821
5-Band SF Bay Tour - Low1010.20.5940
5-Band SF Bay Tour - Low/Med835.50.7181
5-Band SF Bay Tour - Medium728.70.8234
5-Band SF Bay Tour - Med/High671.40.8937
5-Band SF Bay Tour - High646.10.9286
Chicago-Mac Upwind0.8206
Chicago-Mac All Purpose0.8575
Chicago-Mac Downwind0.8920
Bayview-Mac Cove Island0.6370
Bayview-Mac Shore0.6417
Harvest Moon Regatta543.71.1035
Double HandedClub Certificate2025
NenaNOR 6490
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassAPHRODITE 101MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.950Max. Beam2.444Draft1.745Displacement3,183Wetted area15.96IMS L8.051LSM07.994Acc. length7.943Sink (kg/mm) 10.69
VCGD-0.180VCGM-0.204RM Rated (kg·m) 38.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0131
PSD0.030PHD0.080PHL0.150
PSA22.0°ESL3.140
ST10.030ST20.000ST30.100
ST40.100ST50.100
RIG
Forestay tensionForwardInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders1Rotating mastNo
P12.000IG11.000ISP11.000MDT10.090MDL10.140MDT20.090MDL20.110TL1.700MW0.140GO0.140
E3.500J3.600BAS1.100FSD0.000SFJ0.750SPL3.600WPLTPS0.000BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.180Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
NenaNOR 6490
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment398-2014093014000.150.731.312.222.9224.8230/09/2014
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment394-2014093009450.080.551.011.762.473.1611.28NoNo 19.2030/09/2014
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment394-20141125151510.8810.8810.887.150.0063.6125/11/2014
CRUISER/RACER REQUIREMENTS*
Accommodation length7.9 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity19 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.