Club Certificate2025
Kelsea Blue6584
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
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 Angles43.0°43.0°40.8°38.8°37.7°37.3°37.3°37.4°39.0°
Beat VMG2.783.834.645.145.345.455.515.555.43
52°4.365.826.807.297.487.577.647.717.68
60°4.676.127.027.467.677.777.857.947.92
75°4.896.337.167.607.888.078.198.368.44
90°4.866.387.307.778.048.248.488.819.01
110°4.666.207.237.838.298.679.009.5410.04
120°4.375.967.117.748.248.719.1910.1611.14
135°3.825.366.607.407.938.448.9610.2712.55
150°3.164.515.716.737.457.958.439.5111.18
Run VMG2.733.904.945.846.587.187.658.539.68
Gybe Angles142.0°142.0°148.3°152.3°158.3°165.7°170.0°169.1°146.2°
APH ToD:520.2CDL: 10.137APH ToT: 1.1535CertNo:2089
BOAT
ClassC & C 115DesignerTim JackettBuilderC&C YachtsAge date01/2006Series date01/2005Offset fileC&C 115.offData file2089
HULL
Length Overall11.500 mMaximum Beam3.654 mDraft2.000 mDisplacement5,572 kgDLR5.2561IMS DivisionCruiser/RacerDynamic Allowance0.020%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.409m
CREW
Maximum weight675 kg(declared)Minimum weight545 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail45.1045.97Headsail Luffed38.0938.09Headsail FlyingSymmetric114.33114.33Asymmetric86.2194.59 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail13.13Storm Jib12.64Heavy Weather Jib34.12
SAIL LIMITS
Headsails6Spinnakers5
✱ Asymmetric may be tacked on the pole
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
Kelsea Blue6584
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
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 VMG1295.6940.4776.6701.0674.0660.9653.5648.3663.0
52°825.8618.0529.2493.9481.5475.3471.2467.0468.6
60°771.6587.8512.9482.3469.4463.1458.5453.4454.3
75°736.9568.4502.5473.4456.7446.1439.5430.5426.6
90°740.9564.6492.9463.6448.0436.7424.7408.7399.5
110°773.0580.2497.7459.8434.4415.1400.1377.5358.6
120°823.6604.0506.6465.1436.9413.3391.9354.2323.3
135°942.6672.1545.6486.3453.9426.6401.8350.5286.8
150°1139.3798.4630.8534.9483.3453.1427.2378.6321.9
Run VMG1316.4922.0728.4616.3546.7501.5470.5422.0371.7
Selected Courses
Windward / Leeward1305.4931.2752.5658.7610.4581.2562.0535.1517.4
All purpose980.0715.2593.7535.0504.7485.6471.0448.2430.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward635.90.9436
All purpose520.21.1535
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8309
Downwind "popa"0.9983
70% up, 30% down "Ilhabela"0.8749
30% up, 70% down "Ilhabela-inverso"0.9414
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Predominantly Upwind561.81.0680
Predominantly Downwind526.81.1390
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low654.50.9168
Triple Number AP Medium517.51.1595
Triple Number AP High466.11.2873
Triple Number Windward/Leeward Low878.90.6827
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Single Number Predominant Upwind582.81.0296
Single Number Predominant Reaching515.41.1641
Single Number Predominant Downwind548.11.0947
Predominant Upwind - Low780.80.7685
Predominant Upwind - Low/Med607.10.9883
Predominant Upwind - Medium546.41.0982
Predominant Upwind - Med/High516.31.1621
Predominant Upwind - High501.21.1971
Predominant Downwind Low790.80.7588
Predominant Downwind Low/Med592.31.0130
Predominant Downwind Medium510.41.1756
Predominant Downwind Med/High456.51.3143
Predominant Downwind High418.51.4338
Predominant Reaching Low696.20.8618
Predominant Reaching Low/Med543.31.1044
Predominant Reaching Medium486.21.2341
Predominant Reaching Med/High449.71.3342
Predominant Reaching High423.41.4171
SA/DSPL Upwind26.32SA/DSPL Downwind50.44
Scoring OptionTODTOT
5-Band Windward/Leeward Low980.20.6121
5-Band Windward/Leeward Low/Med724.70.8279
5-Band Windward/Leeward Medium621.30.9658
5-Band Windward/Leeward Med/High564.81.0624
5-Band Windward/Leeward High536.71.1179
Windward/Leeward 60-40 Low981.80.6111
Windward/Leeward 60-40 Low/Med731.60.8202
Windward/Leeward 60-40 Medium633.60.9469
Windward/Leeward 60-40 Med/High582.91.0293
Windward/Leeward 60-40 High559.71.0720
5-Band AP Low720.00.8333
5-Band AP Low/Med577.81.0385
5-Band AP Medium511.11.1739
5-Band AP Med/High472.41.2700
5-Band AP High449.01.3362
5-Band SF Bay Tour - Low845.30.7098
5-Band SF Bay Tour - Low/Med693.20.8655
5-Band SF Bay Tour - Medium600.90.9986
5-Band SF Bay Tour - Med/High550.81.0893
5-Band SF Bay Tour - High524.01.1451
Chicago-Mac Upwind1.0023
Chicago-Mac All Purpose1.0325
Chicago-Mac Downwind1.0560
Bayview-Mac Cove Island0.7658
Bayview-Mac Shore0.7720
Harvest Moon Regatta452.91.3248
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance564.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating564.91.0621
FinRating, kevyt tuuli961.51.0400
FinRating, kova tuuli450.81.1092
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0621
Triple Number Coastal/Long Distance Low0.9168
Triple Number Coastal/Long Distance Medium1.1596
Triple Number Coastal/Long Distance High1.2873
Triple Number Windward/Leeward Low0.7127
Triple Number Windward/Leeward Medium0.9508
Triple Number Windward/Leeward High1.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
For information
General Purpose Handicap (GPH)580.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low654.5
Triple Number Coastal/Long Distance Medium517.4
Triple Number Coastal/Long Distance High466.1
Triple Number Windward/Leeward Low841.9
Triple Number Windward/Leeward Medium631.0
Triple Number Windward/Leeward High556.7
Predominantly Upwind561.8
Predominantly Downwind526.8
Predominantly Reaching505.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9168
Triple Number Coastal/Long Distance Medium1.1596
Triple Number Coastal/Long Distance High1.2873
Triple Number Windward/Leeward Low0.7127
Triple Number Windward/Leeward Medium0.9508
Triple Number Windward/Leeward High1.0777
Coastal/Long Distance1.0621
Predominantly Upwind1.0680
Predominantly Downwind1.1390
For information
General Purpose Handicap (GPH)580.7
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1535
Distanseseilas Trippeltall svak vind0.9168
Distanseseilas Trippeltall mellomvind1.1596
Distanseseilas Trippeltall sterk vind1.2873
Pølsebane Trippeltall svak vind0.7127
Pølsebane Trippeltall mellomvind0.9508
Pølsebane Trippeltall sterk vind1.0777
Motvind Singeltall1.0680
Medvind Singeltall1.1390
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Coastal/Long Distance564.91.0621
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind561.81.0680
Predominantly Downwind526.81.1390
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore522.71.1479
Cape Doctor Coastal435.61.3774
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9168
Triple Number Coastal/Long Distance Medium1.1596
Triple Number Coastal/Long Distance High1.2873
Triple Number Windward/Leeward Low0.7127
Triple Number Windward/Leeward Medium0.9508
Triple Number Windward/Leeward High1.0777
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9168
Triple Number Coastal/Long Distance Medium1.1596
Triple Number Coastal/Long Distance High1.2873
Triple Number Windward/Leeward Low0.7127
Triple Number Windward/Leeward Medium0.9508
Triple Number Windward/Leeward High1.0777
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Predominantly Upwind561.81.0680
Predominantly Downwind526.81.1390
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance564.91.0621
Triple Number Coastal/Long Distance Low654.50.9168
Triple Number Coastal/Long Distance Medium517.41.1596
Triple Number Coastal/Long Distance High466.11.2873
Triple Number Windward/Leeward Low841.90.7127
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1386.9930.2709.1597.8537.5503.8475.6428.5410.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low654.50.9168
Triple Number AP Medium517.51.1595
Triple Number AP High466.11.2873
Triple Number Windward/Leeward Low878.90.6827
Triple Number Windward/Leeward Medium631.00.9508
Triple Number Windward/Leeward High556.71.0777
Single Number Predominant Upwind582.81.0296
Single Number Predominant Reaching515.41.1641
Single Number Predominant Downwind548.11.0947
Predominant Upwind - Low780.80.7685
Predominant Upwind - Low/Med607.10.9883
Predominant Upwind - Medium546.41.0982
Predominant Upwind - Med/High516.31.1621
Predominant Upwind - High501.21.1971
Predominant Downwind Low790.80.7588
Predominant Downwind Low/Med592.31.0130
Predominant Downwind Medium510.41.1756
Predominant Downwind Med/High456.51.3143
Predominant Downwind High418.51.4338
Predominant Reaching Low696.20.8618
Predominant Reaching Low/Med543.31.1044
Predominant Reaching Medium486.21.2341
Predominant Reaching Med/High449.71.3342
Predominant Reaching High423.41.4171
SA/DSPL Upwind26.32SA/DSPL Downwind50.44
Scoring OptionTODTOT
5-Band Windward/Leeward Low980.20.6121
5-Band Windward/Leeward Low/Med724.70.8279
5-Band Windward/Leeward Medium621.30.9658
5-Band Windward/Leeward Med/High564.81.0624
5-Band Windward/Leeward High536.71.1179
Windward/Leeward 60-40 Low981.80.6111
Windward/Leeward 60-40 Low/Med731.60.8202
Windward/Leeward 60-40 Medium633.60.9469
Windward/Leeward 60-40 Med/High582.91.0293
Windward/Leeward 60-40 High559.71.0720
5-Band AP Low720.00.8333
5-Band AP Low/Med577.81.0385
5-Band AP Medium511.11.1739
5-Band AP Med/High472.41.2700
5-Band AP High449.01.3362
5-Band SF Bay Tour - Low845.30.7098
5-Band SF Bay Tour - Low/Med693.20.8655
5-Band SF Bay Tour - Medium600.90.9986
5-Band SF Bay Tour - Med/High550.81.0893
5-Band SF Bay Tour - High524.01.1451
Chicago-Mac Upwind1.0023
Chicago-Mac All Purpose1.0325
Chicago-Mac Downwind1.0560
Bayview-Mac Cove Island0.7658
Bayview-Mac Shore0.7720
Harvest Moon Regatta452.91.3248
Club Certificate2025
Kelsea Blue6584
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassC & C 115Measurement16/02/2022HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA11.500Max. Beam3.654Draft2.000Displacement5,572Wetted area26.90IMS L10.459LSM010.195Acc. length11.500Sink (kg/mm) 20.76
VCGD-0.064VCGM-0.016RM Rated (kg·m) 154.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight708Declared crew weight675
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.409PBWPIPA0.0007
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P15.045IG15.896ISP15.923MDT10.116MDL10.220MDT2MDL2TLTaperMWGO
E4.984J4.420BAS1.695FSDFoilSFJSPL5.021WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date16/02/2022
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Kelsea Blue6584
Australian Sailing Ltd
Locked Bag 806
Milsons Point
NSW 1565
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.151.071.893.274.2445.1016/02/2022
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment14.7015.92NoNo 38.0916/02/2022
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment115.8215.8215.828.728.48114.3316/02/2022
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment115.9714.9415.466.288.3575%86.2116/02/2022
CRUISER/RACER REQUIREMENTS*
Accommodation length11.5 mTable area0.55 m²Headroom1.79 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity138 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity80 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.