Double HandedClub Certificate2025
MINERVAUSA 52107
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 Angles44.3°44.3°42.0°41.0°40.5°40.1°39.7°39.7°40.7°
Beat VMG2.473.434.214.735.065.225.305.355.25
52°3.905.286.306.997.367.547.637.677.64
60°4.165.586.597.247.587.777.867.927.92
75°4.345.806.807.437.787.998.148.278.35
90°4.235.696.727.417.808.078.278.588.78
110°3.635.026.157.057.638.008.298.789.11
120°3.344.715.896.827.487.918.228.779.28
135°2.834.125.286.247.037.597.978.559.09
150°2.343.484.545.396.176.847.378.058.60
Run VMG2.033.013.934.725.536.266.917.828.40
Gybe Angles144.0°144.0°145.1°170.3°171.7°172.6°174.1°177.1°177.5°
APH ToD:572.8CDL: 10.067APH ToT: 1.0475CertNo:US52107
BOAT
ClassSabre 426 DKDesignerJim TaylorBuilderSabre YachtsAge date01/2003Series date01/1998Offset files426dkm.offData fileUS52107
HULL
Length Overall12.978 mMaximum Beam4.078 mDraft2.153 mDisplacement10,886 kgDLR7.5034IMS DivisionCruiser/RacerDynamic Allowance0.440%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 3 bladesDiameter0.457m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerYesCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail44.9145.53Headsail Luffed50.5150.51Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail14.00Storm Jib14.80Heavy Weather Jib39.94
SAIL LIMITS
Headsails6
✱ One set on the forestay
Spinnakers0
✱ No spinnaker pole aboard
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
MINERVAUSA 52107
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 VMG1459.51048.3855.6760.7712.1690.3678.9672.6685.2
52°924.2681.5571.1515.1489.1477.5472.0469.3471.2
60°865.8644.7546.3497.3474.7463.5458.1454.7454.4
75°829.5620.9529.5484.8462.9450.6442.4435.2430.9
90°850.8632.9535.5486.2461.4446.3435.2419.5409.9
110°991.8717.0585.6510.9471.8450.0434.5410.1395.0
120°1079.4763.9611.5527.8481.0455.4438.2410.7387.8
135°1270.3874.1681.2577.0512.2474.3451.7421.0396.0
150°1536.11034.5792.6668.3583.7526.1488.2447.0418.5
Run VMG1769.21194.6915.2762.6650.8575.2521.2460.6428.7
Selected Courses
Windward / Leeward1611.71121.4885.4761.6681.5632.7600.0566.6557.0
All purpose1197.6850.2684.7598.8548.1518.6499.5478.5469.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward716.20.8377
All purpose572.81.0475
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7752
Downwind "popa"0.8267
70% up, 30% down "Ilhabela"0.7899
30% up, 70% down "Ilhabela-inverso"0.8106
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Predominantly Upwind605.60.9908
Predominantly Downwind601.00.9983
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low767.50.7818
Triple Number AP Medium569.11.0543
Triple Number AP High496.41.2087
Triple Number Windward/Leeward Low1052.10.5703
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Single Number Predominant Upwind631.80.9496
Single Number Predominant Reaching570.81.0512
Single Number Predominant Downwind633.90.9465
Predominant Upwind - Low898.60.6677
Predominant Upwind - Low/Med672.80.8918
Predominant Upwind - Medium582.51.0301
Predominant Upwind - Med/High537.61.1161
Predominant Upwind - High522.91.1475
Predominant Downwind Low986.70.6081
Predominant Downwind Low/Med702.30.8543
Predominant Downwind Medium575.31.0429
Predominant Downwind Med/High497.01.2073
Predominant Downwind High461.31.3006
Predominant Reaching Low829.30.7235
Predominant Reaching Low/Med615.00.9756
Predominant Reaching Medium525.61.1416
Predominant Reaching Med/High475.81.2610
Predominant Reaching High453.91.3219
SA/DSPL Upwind19.27SA/DSPL Downwind19.27
Scoring OptionTODTOT
5-Band Windward/Leeward Low1185.60.5061
5-Band Windward/Leeward Low/Med846.40.7089
5-Band Windward/Leeward Medium696.90.8609
5-Band Windward/Leeward Med/High606.80.9888
5-Band Windward/Leeward High570.71.0513
Windward/Leeward 60-40 Low1169.10.5132
Windward/Leeward 60-40 Low/Med843.00.7117
Windward/Leeward 60-40 Medium702.70.8539
Windward/Leeward 60-40 Med/High621.90.9647
Windward/Leeward 60-40 High591.71.0140
5-Band AP Low865.50.6932
5-Band AP Low/Med658.70.9109
5-Band AP Medium559.01.0734
5-Band AP Med/High503.31.1922
5-Band AP High480.51.2487
5-Band SF Bay Tour - Low1007.70.5954
5-Band SF Bay Tour - Low/Med803.80.7464
5-Band SF Bay Tour - Medium669.40.8964
5-Band SF Bay Tour - Med/High592.31.0130
5-Band SF Bay Tour - High562.51.0666
Chicago-Mac Upwind0.9170
Chicago-Mac All Purpose0.9165
Chicago-Mac Downwind0.9046
Bayview-Mac Cove Island0.6466
Bayview-Mac Shore0.6546
Harvest Moon Regatta493.51.2157
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance628.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating628.70.9543
FinRating, kevyt tuuli1167.70.8564
FinRating, kova tuuli485.01.0309
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9543
Triple Number Coastal/Long Distance Low0.7818
Triple Number Coastal/Long Distance Medium1.0544
Triple Number Coastal/Long Distance High1.2087
Triple Number Windward/Leeward Low0.5980
Triple Number Windward/Leeward Medium0.8415
Triple Number Windward/Leeward High1.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
For information
General Purpose Handicap (GPH)649.4
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low767.5
Triple Number Coastal/Long Distance Medium569.0
Triple Number Coastal/Long Distance High496.4
Triple Number Windward/Leeward Low1003.3
Triple Number Windward/Leeward Medium713.0
Triple Number Windward/Leeward High595.7
Predominantly Upwind605.6
Predominantly Downwind601.0
Predominantly Reaching563.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7818
Triple Number Coastal/Long Distance Medium1.0544
Triple Number Coastal/Long Distance High1.2087
Triple Number Windward/Leeward Low0.5980
Triple Number Windward/Leeward Medium0.8415
Triple Number Windward/Leeward High1.0073
Coastal/Long Distance0.9543
Predominantly Upwind0.9908
Predominantly Downwind0.9983
For information
General Purpose Handicap (GPH)649.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0475
Distanseseilas Trippeltall svak vind0.7818
Distanseseilas Trippeltall mellomvind1.0544
Distanseseilas Trippeltall sterk vind1.2087
Pølsebane Trippeltall svak vind0.5980
Pølsebane Trippeltall mellomvind0.8415
Pølsebane Trippeltall sterk vind1.0073
Motvind Singeltall0.9908
Medvind Singeltall0.9983
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Coastal/Long Distance628.70.9543
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind605.60.9908
Predominantly Downwind601.00.9983
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore559.91.0717
Cape Doctor Coastal471.91.2715
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7818
Triple Number Coastal/Long Distance Medium1.0544
Triple Number Coastal/Long Distance High1.2087
Triple Number Windward/Leeward Low0.5980
Triple Number Windward/Leeward Medium0.8415
Triple Number Windward/Leeward High1.0073
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7818
Triple Number Coastal/Long Distance Medium1.0544
Triple Number Coastal/Long Distance High1.2087
Triple Number Windward/Leeward Low0.5980
Triple Number Windward/Leeward Medium0.8415
Triple Number Windward/Leeward High1.0073
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Predominantly Upwind605.60.9908
Predominantly Downwind601.00.9983
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance628.70.9543
Triple Number Coastal/Long Distance Low767.50.7818
Triple Number Coastal/Long Distance Medium569.01.0544
Triple Number Coastal/Long Distance High496.41.2087
Triple Number Windward/Leeward Low1003.30.5980
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1746.01128.7832.6681.7588.3540.0505.7458.3445.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low767.50.7818
Triple Number AP Medium569.11.0543
Triple Number AP High496.41.2087
Triple Number Windward/Leeward Low1052.10.5703
Triple Number Windward/Leeward Medium713.00.8415
Triple Number Windward/Leeward High595.71.0073
Single Number Predominant Upwind631.80.9496
Single Number Predominant Reaching570.81.0512
Single Number Predominant Downwind633.90.9465
Predominant Upwind - Low898.60.6677
Predominant Upwind - Low/Med672.80.8918
Predominant Upwind - Medium582.51.0301
Predominant Upwind - Med/High537.61.1161
Predominant Upwind - High522.91.1475
Predominant Downwind Low986.70.6081
Predominant Downwind Low/Med702.30.8543
Predominant Downwind Medium575.31.0429
Predominant Downwind Med/High497.01.2073
Predominant Downwind High461.31.3006
Predominant Reaching Low829.30.7235
Predominant Reaching Low/Med615.00.9756
Predominant Reaching Medium525.61.1416
Predominant Reaching Med/High475.81.2610
Predominant Reaching High453.91.3219
SA/DSPL Upwind19.27SA/DSPL Downwind19.27
Scoring OptionTODTOT
5-Band Windward/Leeward Low1185.60.5061
5-Band Windward/Leeward Low/Med846.40.7089
5-Band Windward/Leeward Medium696.90.8609
5-Band Windward/Leeward Med/High606.80.9888
5-Band Windward/Leeward High570.71.0513
Windward/Leeward 60-40 Low1169.10.5132
Windward/Leeward 60-40 Low/Med843.00.7117
Windward/Leeward 60-40 Medium702.70.8539
Windward/Leeward 60-40 Med/High621.90.9647
Windward/Leeward 60-40 High591.71.0140
5-Band AP Low865.50.6932
5-Band AP Low/Med658.70.9109
5-Band AP Medium559.01.0734
5-Band AP Med/High503.31.1922
5-Band AP High480.51.2487
5-Band SF Bay Tour - Low1007.70.5954
5-Band SF Bay Tour - Low/Med803.80.7464
5-Band SF Bay Tour - Medium669.40.8964
5-Band SF Bay Tour - Med/High592.31.0130
5-Band SF Bay Tour - High562.51.0666
Chicago-Mac Upwind0.9170
Chicago-Mac All Purpose0.9165
Chicago-Mac Downwind0.9046
Bayview-Mac Cove Island0.6466
Bayview-Mac Shore0.6546
Harvest Moon Regatta493.51.2157
Double HandedClub Certificate2025
MINERVAUSA 52107
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSabre 426 DKMeasurementHINHWS42007K203Plan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.978Max. Beam4.078Draft2.153Displacement10,886Wetted area38.02IMS L11.339LSM011.320Acc. length12.978Sink (kg/mm) 27.22
VCGD0.091VCGM0.050RM Rated (kg·m) 248.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeFolding 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.457PBW0.152PIPA0.0041
PSD0.029PHD0.060PHL0.120
PSA14.0°ESL0.950
ST10.030ST20.130ST30.130
ST40.054ST50.275
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstaysCheckstays1Spreaders3Rotating mastNo
P15.060IG17.200ISP17.200MDT10.150MDL10.249MDT20.150MDL20.220TL1.900MW0.220GO0.220
E5.309J5.030BAS1.460FSD0.074SFJ0.050SPLWPLTPSBD0.250MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2013
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
MINERVAUSA 52107
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMn0.050.941.763.164.3144.9123/04/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ20.060.731.432.924.556.4416.54NoNo 50.5105/06/2025
CRUISER/RACER REQUIREMENTS*
Accommodation length13.0 mTable area0.66 m²Headroom1.85 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity210 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity110 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.