Club Certificate2025
X-MENTUR 11411
Turkiye
Sailing
Federation
www.tyf.org.tr/
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 Angles42.6°42.6°40.6°38.9°37.4°36.7°36.7°36.3°37.0°
Beat VMG2.914.034.925.525.825.996.096.206.21
52°4.536.127.247.878.178.318.418.538.57
60°4.836.437.498.068.368.538.638.788.85
75°5.056.657.658.198.548.808.999.239.39
90°4.796.507.718.288.558.889.189.659.98
110°4.916.677.928.579.059.409.6910.2310.74
120°4.746.527.828.529.059.5810.0810.8311.61
135°4.105.837.268.138.699.239.8111.3213.51
150°3.454.896.157.258.088.579.0310.0211.86
Run VMG2.994.235.326.287.037.507.918.6910.28
Gybe Angles142.0°142.0°145.3°148.0°152.5°155.2°159.1°154.8°141.8°
APH ToD:481.0CDL: 12.044APH ToT: 1.2474CertNo:
BOAT
ClassXp44DesignerJEPPESEN NIELSBuilderX-YACHTSAge date01/2018Series date01/2011Offset fileXP-44.offData fileTUR 11411 X-MEN
HULL
Length Overall13.290 mMaximum Beam4.052 mDraft2.694 mDisplacement9,654 kgDLR5.3864IMS DivisionCruiser/RacerDynamic Allowance0.110%Age Allowance0.455%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameterm
CREW
Maximum weight1,020 kg(declared)Minimum weight867 kg ✱ when appliedNon Manual PowerSailsCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail61.2962.18Headsail Luffed52.0752.07Headsail FlyingSymmetricAsymmetric190.39190.39 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail18.66Storm Jib16.74Heavy Weather Jib45.18
SAIL LIMITS
Headsails7Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
IRC ENDORSED 2024
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
X-MENTUR 11411
Turkiye
Sailing
Federation
www.tyf.org.tr/
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 VMG1238.4893.3731.9652.5618.1601.4591.1580.2579.9
52°794.4588.4497.3457.4440.8433.3428.3422.2420.1
60°744.6559.5480.5446.5430.5422.1417.0409.8406.8
75°713.2541.5470.4439.4421.5409.2400.6389.9383.4
90°752.2553.8467.0435.0421.3405.5392.0373.0360.7
110°733.9540.0454.8420.0397.6382.9371.5352.1335.3
120°759.2552.4460.1422.8397.6375.8357.3332.3310.0
135°877.2617.2495.6442.7414.2389.8366.9318.1266.5
150°1043.0736.5585.8496.6445.8419.9398.9359.1303.4
Run VMG1204.8850.4676.4573.4512.4479.9455.2414.2350.4
Selected Courses
Windward / Leeward1221.4871.9704.1612.9565.2540.7523.2497.2465.1
All purpose928.7672.4553.5495.4465.4447.2433.3411.4389.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward591.51.0144
All purpose481.01.2474
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8996
Downwind "popa"1.0601
70% up, 30% down "Ilhabela"0.9424
30% up, 70% down "Ilhabela-inverso"1.0062
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Predominantly Upwind519.51.1550
Predominantly Downwind488.81.2276
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low612.90.9789
Triple Number AP Medium478.21.2547
Triple Number AP High428.51.4001
Triple Number Windward/Leeward Low822.30.7297
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Single Number Predominant Upwind540.11.1108
Single Number Predominant Reaching479.31.2519
Single Number Predominant Downwind509.11.1785
Predominant Upwind - Low741.00.8098
Predominant Upwind - Low/Med567.21.0578
Predominant Upwind - Medium504.01.1905
Predominant Upwind - Med/High471.71.2720
Predominant Upwind - High453.91.3218
Predominant Downwind Low738.40.8125
Predominant Downwind Low/Med549.31.0923
Predominant Downwind Medium473.01.2686
Predominant Downwind Med/High424.61.4130
Predominant Downwind High388.51.5446
Predominant Reaching Low661.40.9072
Predominant Reaching Low/Med506.71.1841
Predominant Reaching Medium450.01.3335
Predominant Reaching Med/High413.51.4511
Predominant Reaching High386.61.5520
SA/DSPL Upwind24.82SA/DSPL Downwind55.09
Scoring OptionTODTOT
5-Band Windward/Leeward Low917.40.6540
5-Band Windward/Leeward Low/Med676.20.8873
5-Band Windward/Leeward Medium577.11.0396
5-Band Windward/Leeward Med/High525.31.1423
5-Band Windward/Leeward High496.21.2093
Windward/Leeward 60-40 Low921.70.6509
Windward/Leeward 60-40 Low/Med683.10.8783
Windward/Leeward 60-40 Medium587.31.0216
Windward/Leeward 60-40 Med/High538.91.1134
Windward/Leeward 60-40 High513.31.1688
5-Band AP Low676.20.8873
5-Band AP Low/Med537.51.1163
5-Band AP Medium472.01.2713
5-Band AP Med/High434.61.3805
5-Band AP High411.41.4585
5-Band SF Bay Tour - Low791.50.7580
5-Band SF Bay Tour - Low/Med645.70.9292
5-Band SF Bay Tour - Medium555.71.0797
5-Band SF Bay Tour - Med/High508.01.1810
5-Band SF Bay Tour - High480.41.2490
Chicago-Mac Upwind1.0785
Chicago-Mac All Purpose1.1100
Chicago-Mac Downwind1.1367
Bayview-Mac Cove Island0.8168
Bayview-Mac Shore0.8219
Harvest Moon Regatta419.91.4289
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance522.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating522.81.1477
FinRating, kevyt tuuli900.71.1103
FinRating, kova tuuli412.91.2108
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.1477
Triple Number Coastal/Long Distance Low0.9789
Triple Number Coastal/Long Distance Medium1.2548
Triple Number Coastal/Long Distance High1.4001
Triple Number Windward/Leeward Low0.7614
Triple Number Windward/Leeward Medium1.0229
Triple Number Windward/Leeward High1.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
For information
General Purpose Handicap (GPH)538.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low612.9
Triple Number Coastal/Long Distance Medium478.2
Triple Number Coastal/Long Distance High428.5
Triple Number Windward/Leeward Low788.0
Triple Number Windward/Leeward Medium586.6
Triple Number Windward/Leeward High517.8
Predominantly Upwind519.5
Predominantly Downwind488.8
Predominantly Reaching469.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9789
Triple Number Coastal/Long Distance Medium1.2548
Triple Number Coastal/Long Distance High1.4001
Triple Number Windward/Leeward Low0.7614
Triple Number Windward/Leeward Medium1.0229
Triple Number Windward/Leeward High1.1587
Coastal/Long Distance1.1477
Predominantly Upwind1.1550
Predominantly Downwind1.2276
For information
General Purpose Handicap (GPH)538.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.2474
Distanseseilas Trippeltall svak vind0.9789
Distanseseilas Trippeltall mellomvind1.2548
Distanseseilas Trippeltall sterk vind1.4001
Pølsebane Trippeltall svak vind0.7614
Pølsebane Trippeltall mellomvind1.0229
Pølsebane Trippeltall sterk vind1.1587
Motvind Singeltall1.1550
Medvind Singeltall1.2276
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Coastal/Long Distance522.81.1477
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind519.51.1550
Predominantly Downwind488.81.2276
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore474.71.2638
Cape Doctor Coastal396.01.5151
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9789
Triple Number Coastal/Long Distance Medium1.2548
Triple Number Coastal/Long Distance High1.4001
Triple Number Windward/Leeward Low0.7614
Triple Number Windward/Leeward Medium1.0229
Triple Number Windward/Leeward High1.1587
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9789
Triple Number Coastal/Long Distance Medium1.2548
Triple Number Coastal/Long Distance High1.4001
Triple Number Windward/Leeward Low0.7614
Triple Number Windward/Leeward Medium1.0229
Triple Number Windward/Leeward High1.1587
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Predominantly Upwind519.51.1550
Predominantly Downwind488.81.2276
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance522.81.1477
Triple Number Coastal/Long Distance Low612.90.9789
Triple Number Coastal/Long Distance Medium478.21.2548
Triple Number Coastal/Long Distance High428.51.4001
Triple Number Windward/Leeward Low788.00.7614
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1294.2869.7663.0555.3495.5463.7437.2395.5374.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low612.90.9789
Triple Number AP Medium478.21.2547
Triple Number AP High428.51.4001
Triple Number Windward/Leeward Low822.30.7297
Triple Number Windward/Leeward Medium586.61.0229
Triple Number Windward/Leeward High517.81.1587
Single Number Predominant Upwind540.11.1108
Single Number Predominant Reaching479.31.2519
Single Number Predominant Downwind509.11.1785
Predominant Upwind - Low741.00.8098
Predominant Upwind - Low/Med567.21.0578
Predominant Upwind - Medium504.01.1905
Predominant Upwind - Med/High471.71.2720
Predominant Upwind - High453.91.3218
Predominant Downwind Low738.40.8125
Predominant Downwind Low/Med549.31.0923
Predominant Downwind Medium473.01.2686
Predominant Downwind Med/High424.61.4130
Predominant Downwind High388.51.5446
Predominant Reaching Low661.40.9072
Predominant Reaching Low/Med506.71.1841
Predominant Reaching Medium450.01.3335
Predominant Reaching Med/High413.51.4511
Predominant Reaching High386.61.5520
SA/DSPL Upwind24.82SA/DSPL Downwind55.09
Scoring OptionTODTOT
5-Band Windward/Leeward Low917.40.6540
5-Band Windward/Leeward Low/Med676.20.8873
5-Band Windward/Leeward Medium577.11.0396
5-Band Windward/Leeward Med/High525.31.1423
5-Band Windward/Leeward High496.21.2093
Windward/Leeward 60-40 Low921.70.6509
Windward/Leeward 60-40 Low/Med683.10.8783
Windward/Leeward 60-40 Medium587.31.0216
Windward/Leeward 60-40 Med/High538.91.1134
Windward/Leeward 60-40 High513.31.1688
5-Band AP Low676.20.8873
5-Band AP Low/Med537.51.1163
5-Band AP Medium472.01.2713
5-Band AP Med/High434.61.3805
5-Band AP High411.41.4585
5-Band SF Bay Tour - Low791.50.7580
5-Band SF Bay Tour - Low/Med645.70.9292
5-Band SF Bay Tour - Medium555.71.0797
5-Band SF Bay Tour - Med/High508.01.1810
5-Band SF Bay Tour - High480.41.2490
Chicago-Mac Upwind1.0785
Chicago-Mac All Purpose1.1100
Chicago-Mac Downwind1.1367
Bayview-Mac Cove Island0.8168
Bayview-Mac Shore0.8219
Harvest Moon Regatta419.91.4289
Club Certificate2025
X-MENTUR 11411
Turkiye
Sailing
Federation
www.tyf.org.tr/
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassXp44Measurement09/11/2024HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA13.290Max. Beam4.052Draft2.694Displacement9,654Wetted area37.73IMS L12.413LSM012.146Acc. length13.169Sink (kg/mm) 27.81
VCGD-0.217VCGM-0.202RM Rated (kg·m) 278.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight908Declared crew weight1,020
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRDPBW
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P17.920IG18.220ISP18.350MDT10.135MDL10.275MDT20.115MDL20.225TL1.400MW0.275GO0.295
E5.950J4.970BAS1.800FSDSFJ0.285SPLWPLTPS6.330BD0.250MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date09/11/2024
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
X-MENTUR 11411
Turkiye
Sailing
Federation
www.tyf.org.tr/
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentJ20.261.232.143.604.8261.2903/01/2025measured by CAGATAY ONUR
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ11.011.802.985.3518.13NoNo 52.07IRC ENDORSED 2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA222.0918.4920.2911.3310.98103%190.3903/01/2025measured by CAGATAY ONURA1.521.2618.2419.7511.0510.35107%179.56IRC ENDORSED 2024
CRUISER/RACER REQUIREMENTS*
Accommodation length13.2 mTable area0.66 m²Headroom1.86 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity216 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity114 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.