Club Certificate2025
TESSAEST 324
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
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 Angles43.2°43.2°41.1°39.6°38.3°37.6°37.1°36.8°37.1°
Beat VMG2.493.424.144.664.995.145.245.325.31
52°3.895.216.136.707.007.167.247.337.35
60°4.135.486.376.877.157.327.427.537.57
75°4.275.646.527.007.297.507.677.877.98
90°4.135.526.487.067.357.567.788.148.37
110°4.035.526.627.207.567.878.138.448.63
120°3.895.366.467.127.537.888.208.789.15
135°3.474.835.946.787.297.678.048.789.67
150°2.834.085.206.146.877.317.678.399.17
Run VMG2.453.534.505.346.076.657.097.778.43
Gybe Angles145.6°145.6°150.3°152.9°159.0°166.0°173.2°177.2°177.2°
APH ToD:566.2CDL: 9.180APH ToT: 1.0598CertNo:090/21
BOAT
ClassRidas 35DesignerLönngren/RidasBuilderRidas JahtAge date04/2002Series date06/1997Offset fileRIDAS35.OFFData fileEST324
HULL
Length Overall10.620 mMaximum Beam3.398 mDraft1.988 mDisplacement6,240 kgDLR6.7098IMS DivisionCruiser/RacerDynamic Allowance0.250%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.410m
CREW
Maximum weight660 kg(declared)Minimum weight530 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail33.9334.44Headsail Luffed36.1236.12Headsail FlyingSymmetric92.0692.06Asymmetric
STORM SAIL AREAS (m²)
Trysail10.12Storm Jib9.68Heavy Weather Jib26.13
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.
Club Certificate2025
TESSAEST 324
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
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 VMG1444.91052.4869.2771.9722.2700.1687.6676.8677.7
52°926.1691.0587.3537.5514.6503.1497.4491.4489.5
60°872.2656.9565.2523.9503.6491.9485.2478.2475.3
75°844.0638.1551.8514.0494.0480.0469.6457.5451.1
90°871.9652.1555.8510.1489.8476.3462.8442.5430.2
110°892.9651.6543.8499.9476.0457.5443.0426.4417.0
120°924.3671.9556.9505.3478.2457.1438.8409.9393.4
135°1038.3745.5605.7530.8494.1469.5447.7409.8372.3
150°1270.6882.7692.6586.0524.3492.3469.3429.3392.4
Run VMG1467.91019.2799.5674.8593.4541.5507.6463.2427.2
Selected Courses
Windward / Leeward1455.01035.8834.3723.3657.8620.8597.6570.0552.5
All purpose1102.5799.4658.1585.4545.8522.9507.0485.7471.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward689.70.8700
All purpose566.21.0598
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7664
Downwind "popa"0.9132
70% up, 30% down "Ilhabela"0.8052
30% up, 70% down "Ilhabela-inverso"0.8636
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Predominantly Upwind610.70.9825
Predominantly Downwind576.41.0409
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low728.80.8233
Triple Number AP Medium562.71.0663
Triple Number AP High503.01.1928
Triple Number Windward/Leeward Low976.10.6147
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Single Number Predominant Upwind634.40.9457
Single Number Predominant Reaching566.41.0592
Single Number Predominant Downwind601.60.9974
Predominant Upwind - Low874.40.6862
Predominant Upwind - Low/Med670.50.8949
Predominant Upwind - Medium590.71.0158
Predominant Upwind - Med/High550.61.0896
Predominant Upwind - High533.41.1249
Predominant Downwind Low881.40.6807
Predominant Downwind Low/Med652.70.9192
Predominant Downwind Medium555.51.0801
Predominant Downwind Med/High496.51.2084
Predominant Downwind High463.11.2957
Predominant Reaching Low783.80.7655
Predominant Reaching Low/Med601.30.9978
Predominant Reaching Medium529.51.1331
Predominant Reaching Med/High488.11.2293
Predominant Reaching High463.51.2945
SA/DSPL Upwind20.54SA/DSPL Downwind36.95
Scoring OptionTODTOT
5-Band Windward/Leeward Low1090.60.5502
5-Band Windward/Leeward Low/Med798.80.7511
5-Band Windward/Leeward Medium672.20.8925
5-Band Windward/Leeward Med/High601.90.9968
5-Band Windward/Leeward High571.81.0494
Windward/Leeward 60-40 Low1093.40.5487
Windward/Leeward 60-40 Low/Med807.10.7434
Windward/Leeward 60-40 Medium685.00.8759
Windward/Leeward 60-40 Med/High619.70.9682
Windward/Leeward 60-40 High593.21.0115
5-Band AP Low805.10.7452
5-Band AP Low/Med636.70.9424
5-Band AP Medium554.61.0818
5-Band AP Med/High509.41.1779
5-Band AP High486.91.2324
5-Band SF Bay Tour - Low940.50.6380
5-Band SF Bay Tour - Low/Med764.40.7849
5-Band SF Bay Tour - Medium650.50.9223
5-Band SF Bay Tour - Med/High589.01.0186
5-Band SF Bay Tour - High561.61.0684
Chicago-Mac Upwind0.9165
Chicago-Mac All Purpose0.9415
Chicago-Mac Downwind0.9612
Bayview-Mac Cove Island0.6904
Bayview-Mac Shore0.6954
Harvest Moon Regatta496.61.2083
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance615.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating615.00.9756
FinRating, kevyt tuuli1071.70.9331
FinRating, kova tuuli490.31.0198
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9756
Triple Number Coastal/Long Distance Low0.8233
Triple Number Coastal/Long Distance Medium1.0665
Triple Number Coastal/Long Distance High1.1928
Triple Number Windward/Leeward Low0.6417
Triple Number Windward/Leeward Medium0.8758
Triple Number Windward/Leeward High1.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
For information
General Purpose Handicap (GPH)635.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low728.8
Triple Number Coastal/Long Distance Medium562.6
Triple Number Coastal/Long Distance High503.0
Triple Number Windward/Leeward Low935.0
Triple Number Windward/Leeward Medium685.1
Triple Number Windward/Leeward High593.1
Predominantly Upwind610.7
Predominantly Downwind576.4
Predominantly Reaching554.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8233
Triple Number Coastal/Long Distance Medium1.0665
Triple Number Coastal/Long Distance High1.1928
Triple Number Windward/Leeward Low0.6417
Triple Number Windward/Leeward Medium0.8758
Triple Number Windward/Leeward High1.0117
Coastal/Long Distance0.9756
Predominantly Upwind0.9825
Predominantly Downwind1.0409
For information
General Purpose Handicap (GPH)635.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0598
Distanseseilas Trippeltall svak vind0.8233
Distanseseilas Trippeltall mellomvind1.0665
Distanseseilas Trippeltall sterk vind1.1928
Pølsebane Trippeltall svak vind0.6417
Pølsebane Trippeltall mellomvind0.8758
Pølsebane Trippeltall sterk vind1.0117
Motvind Singeltall0.9825
Medvind Singeltall1.0409
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Coastal/Long Distance615.00.9756
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind610.70.9825
Predominantly Downwind576.41.0409
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore557.71.0758
Cape Doctor Coastal475.51.2618
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8233
Triple Number Coastal/Long Distance Medium1.0665
Triple Number Coastal/Long Distance High1.1928
Triple Number Windward/Leeward Low0.6417
Triple Number Windward/Leeward Medium0.8758
Triple Number Windward/Leeward High1.0117
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8233
Triple Number Coastal/Long Distance Medium1.0665
Triple Number Coastal/Long Distance High1.1928
Triple Number Windward/Leeward Low0.6417
Triple Number Windward/Leeward Medium0.8758
Triple Number Windward/Leeward High1.0117
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Predominantly Upwind610.70.9825
Predominantly Downwind576.41.0409
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance615.00.9756
Triple Number Coastal/Long Distance Low728.80.8233
Triple Number Coastal/Long Distance Medium562.61.0665
Triple Number Coastal/Long Distance High503.01.1928
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1543.41034.1786.0655.5580.6542.2512.9467.5453.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low728.80.8233
Triple Number AP Medium562.71.0663
Triple Number AP High503.01.1928
Triple Number Windward/Leeward Low976.10.6147
Triple Number Windward/Leeward Medium685.10.8758
Triple Number Windward/Leeward High593.11.0117
Single Number Predominant Upwind634.40.9457
Single Number Predominant Reaching566.41.0592
Single Number Predominant Downwind601.60.9974
Predominant Upwind - Low874.40.6862
Predominant Upwind - Low/Med670.50.8949
Predominant Upwind - Medium590.71.0158
Predominant Upwind - Med/High550.61.0896
Predominant Upwind - High533.41.1249
Predominant Downwind Low881.40.6807
Predominant Downwind Low/Med652.70.9192
Predominant Downwind Medium555.51.0801
Predominant Downwind Med/High496.51.2084
Predominant Downwind High463.11.2957
Predominant Reaching Low783.80.7655
Predominant Reaching Low/Med601.30.9978
Predominant Reaching Medium529.51.1331
Predominant Reaching Med/High488.11.2293
Predominant Reaching High463.51.2945
SA/DSPL Upwind20.54SA/DSPL Downwind36.95
Scoring OptionTODTOT
5-Band Windward/Leeward Low1090.60.5502
5-Band Windward/Leeward Low/Med798.80.7511
5-Band Windward/Leeward Medium672.20.8925
5-Band Windward/Leeward Med/High601.90.9968
5-Band Windward/Leeward High571.81.0494
Windward/Leeward 60-40 Low1093.40.5487
Windward/Leeward 60-40 Low/Med807.10.7434
Windward/Leeward 60-40 Medium685.00.8759
Windward/Leeward 60-40 Med/High619.70.9682
Windward/Leeward 60-40 High593.21.0115
5-Band AP Low805.10.7452
5-Band AP Low/Med636.70.9424
5-Band AP Medium554.61.0818
5-Band AP Med/High509.41.1779
5-Band AP High486.91.2324
5-Band SF Bay Tour - Low940.50.6380
5-Band SF Bay Tour - Low/Med764.40.7849
5-Band SF Bay Tour - Medium650.50.9223
5-Band SF Bay Tour - Med/High589.01.0186
5-Band SF Bay Tour - High561.61.0684
Chicago-Mac Upwind0.9165
Chicago-Mac All Purpose0.9415
Chicago-Mac Downwind0.9612
Bayview-Mac Cove Island0.6904
Bayview-Mac Shore0.6954
Harvest Moon Regatta496.61.2083
Club Certificate2025
TESSAEST 324
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassRidas 35Measurement04/07/2008HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.620Max. Beam3.398Draft1.988Displacement6,240Wetted area25.92IMS L9.810LSM09.760Acc. length10.620Sink (kg/mm) 19.50
VCGD0.020VCGM0.019RM Rated (kg·m) 124.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight665Declared crew weight660
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.410PBWPIPA0.0007
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P13.600IG13.910ISP14.210MDT10.113MDL10.185MDT20.000MDL20.000TLTaperMW0.000GO0.000
E4.250J4.400BAS1.440FSDFoilSFJ0.000SPL4.488WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date10/05/2023
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
TESSAEST 324
Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20.140.891.582.673.5233.93
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20.080.681.302.583.935.3513.71NoNo 36.1209/07/201630.190.631.182.393.855.4513.35NoNo 34.3107/07/201710.090.561.062.093.134.1712.79NoNo 26.8507/03/2018
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment314.3414.3414.347.757.5292.0611/07/2008213.7613.7613.767.597.2486.2313/07/2013113.4413.4413.447.277.2781.4227/07/2011
CRUISER/RACER REQUIREMENTS*
Accommodation length10.6 mTable area0.44 m²Headroom1.74 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity92 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity62 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.