Double HandedClub Certificate2025
TITAN IESP-10970_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
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 Angles45.1°45.1°43.2°42.6°42.6°42.4°42.3°43.3°45.5°
Beat VMG2.192.983.573.954.164.254.284.234.03
52°3.464.625.415.916.176.296.346.366.24
60°3.704.895.666.126.376.516.576.636.59
75°3.875.095.866.306.566.746.877.017.07
90°3.765.035.916.456.756.937.057.317.48
110°3.775.106.056.576.927.227.487.868.12
120°3.634.965.926.496.877.207.508.098.61
135°3.224.475.486.216.656.997.327.968.73
150°2.683.824.815.616.206.586.887.458.02
Run VMG2.323.314.164.865.395.836.186.797.29
Gybe Angles145.7°145.7°148.1°149.2°153.1°159.2°163.3°175.2°175.0°
APH ToD:640.8CDL: 6.871APH ToT: 0.9363CertNo:1097R1
BOAT
ClassNORDSHIP 34DesignerPAUL ELVSTROMBuilderNORDSHIPAge date01/1986Series date01/1981Offset filenord32cl.offData fileE10970_C
HULL
Length Overall10.060 mMaximum Beam3.320 mDraft1.486 mDisplacement4,900 kgDLR10.5678IMS DivisionCruiser/RacerDynamic Allowance0.520%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.300m
CREW
Maximum weight170 kg(default)Minimum weight120 kg ✱ when appliedNon Manual PowerYesCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail27.1427.86Headsail Luffed34.1334.13Headsail FlyingSymmetricAsymmetric68.9968.99 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail7.74Storm Jib7.88Heavy Weather Jib21.27
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
CASO ESTIMADO.
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
TITAN IESP-10970_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
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 VMG1645.91208.01008.3910.4864.7846.6841.0850.9892.8
52°1039.6779.6665.9609.5583.1572.2567.8565.7577.0
60°972.8736.1635.8588.0564.9553.0548.1543.0546.3
75°931.3707.9614.9571.5548.6533.9524.0513.3508.9
90°957.6715.2608.8558.2533.2519.2510.7492.2481.2
110°956.0705.5595.0547.8520.2498.8481.4458.0443.4
120°990.5726.3607.6554.3524.2500.3480.0444.7418.3
135°1117.6804.6656.7580.2541.8514.9491.9452.2412.5
150°1342.8942.8748.6641.8580.7546.9523.1483.4448.7
Run VMG1550.61088.7864.4741.0667.7617.9582.4530.1493.5
Selected Courses
Windward / Leeward1597.01148.3936.3825.7766.2732.2711.7690.5693.2
All purpose1209.7883.7733.7658.7619.4596.5581.9564.1559.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward798.20.7517
All purpose640.80.9363
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6432
Downwind "popa"0.8248
70% up, 30% down "Ilhabela"0.6887
30% up, 70% down "Ilhabela-inverso"0.7604
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Predominantly Upwind699.30.8580
Predominantly Downwind642.00.9345
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low808.70.7419
Triple Number AP Medium636.40.9429
Triple Number AP High578.91.0365
Triple Number Windward/Leeward Low1086.90.5520
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Single Number Predominant Upwind727.30.8250
Single Number Predominant Reaching630.70.9513
Single Number Predominant Downwind669.20.8966
Predominant Upwind - Low980.40.6120
Predominant Upwind - Low/Med760.50.7889
Predominant Upwind - Medium678.10.8848
Predominant Upwind - Med/High642.00.9345
Predominant Upwind - High633.60.9470
Predominant Downwind Low958.50.6260
Predominant Downwind Low/Med719.10.8343
Predominant Downwind Medium620.80.9665
Predominant Downwind Med/High562.41.0669
Predominant Downwind High529.31.1336
Predominant Reaching Low861.70.6963
Predominant Reaching Low/Med665.60.9014
Predominant Reaching Medium589.91.0171
Predominant Reaching Med/High549.31.0922
Predominant Reaching High527.51.1374
SA/DSPL Upwind21.13SA/DSPL Downwind33.15
Scoring OptionTODTOT
5-Band Windward/Leeward Low1207.80.4968
5-Band Windward/Leeward Low/Med903.40.6641
5-Band Windward/Leeward Medium780.00.7692
5-Band Windward/Leeward Med/High716.20.8378
5-Band Windward/Leeward High694.60.8638
Windward/Leeward 60-40 Low1219.80.4919
Windward/Leeward 60-40 Low/Med919.20.6528
Windward/Leeward 60-40 Medium799.90.7501
Windward/Leeward 60-40 Med/High742.10.8086
Windward/Leeward 60-40 High727.00.8253
5-Band AP Low883.50.6791
5-Band AP Low/Med712.50.8421
5-Band AP Medium628.50.9547
5-Band AP Med/High584.51.0265
5-Band AP High566.41.0594
5-Band SF Bay Tour - Low1048.20.5724
5-Band SF Bay Tour - Low/Med865.80.6930
5-Band SF Bay Tour - Medium753.30.7964
5-Band SF Bay Tour - Med/High697.40.8603
5-Band SF Bay Tour - High679.40.8832
Chicago-Mac Upwind0.8012
Chicago-Mac All Purpose0.8360
Chicago-Mac Downwind0.8666
Bayview-Mac Cove Island0.6198
Bayview-Mac Shore0.6238
Harvest Moon Regatta551.01.0890
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance698.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating698.20.8593
FinRating, kevyt tuuli1182.20.8459
FinRating, kova tuuli569.60.8779
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8593
Triple Number Coastal/Long Distance Low0.7419
Triple Number Coastal/Long Distance Medium0.9430
Triple Number Coastal/Long Distance High1.0365
Triple Number Windward/Leeward Low0.5756
Triple Number Windward/Leeward Medium0.7578
Triple Number Windward/Leeward High0.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
For information
General Purpose Handicap (GPH)715.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low808.7
Triple Number Coastal/Long Distance Medium636.3
Triple Number Coastal/Long Distance High578.9
Triple Number Windward/Leeward Low1042.4
Triple Number Windward/Leeward Medium791.8
Triple Number Windward/Leeward High708.9
Predominantly Upwind699.3
Predominantly Downwind642.0
Predominantly Reaching616.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7419
Triple Number Coastal/Long Distance Medium0.9430
Triple Number Coastal/Long Distance High1.0365
Triple Number Windward/Leeward Low0.5756
Triple Number Windward/Leeward Medium0.7578
Triple Number Windward/Leeward High0.8464
Coastal/Long Distance0.8593
Predominantly Upwind0.8580
Predominantly Downwind0.9345
For information
General Purpose Handicap (GPH)715.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9363
Distanseseilas Trippeltall svak vind0.7419
Distanseseilas Trippeltall mellomvind0.9430
Distanseseilas Trippeltall sterk vind1.0365
Pølsebane Trippeltall svak vind0.5756
Pølsebane Trippeltall mellomvind0.7578
Pølsebane Trippeltall sterk vind0.8464
Motvind Singeltall0.8580
Medvind Singeltall0.9345
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Coastal/Long Distance698.20.8593
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind699.30.8580
Predominantly Downwind642.00.9345
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore692.40.8666
Cape Doctor Coastal560.91.0697
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7419
Triple Number Coastal/Long Distance Medium0.9430
Triple Number Coastal/Long Distance High1.0365
Triple Number Windward/Leeward Low0.5756
Triple Number Windward/Leeward Medium0.7578
Triple Number Windward/Leeward High0.8464
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7419
Triple Number Coastal/Long Distance Medium0.9430
Triple Number Coastal/Long Distance High1.0365
Triple Number Windward/Leeward Low0.5756
Triple Number Windward/Leeward Medium0.7578
Triple Number Windward/Leeward High0.8464
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Predominantly Upwind699.30.8580
Predominantly Downwind642.00.9345
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance698.20.8593
Triple Number Coastal/Long Distance Low808.70.7419
Triple Number Coastal/Long Distance Medium636.30.9430
Triple Number Coastal/Long Distance High578.91.0365
Triple Number Windward/Leeward Low1042.40.5756
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1684.81142.4879.1742.7663.4620.1587.1531.8520.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low808.70.7419
Triple Number AP Medium636.40.9429
Triple Number AP High578.91.0365
Triple Number Windward/Leeward Low1086.90.5520
Triple Number Windward/Leeward Medium791.80.7578
Triple Number Windward/Leeward High708.90.8464
Single Number Predominant Upwind727.30.8250
Single Number Predominant Reaching630.70.9513
Single Number Predominant Downwind669.20.8966
Predominant Upwind - Low980.40.6120
Predominant Upwind - Low/Med760.50.7889
Predominant Upwind - Medium678.10.8848
Predominant Upwind - Med/High642.00.9345
Predominant Upwind - High633.60.9470
Predominant Downwind Low958.50.6260
Predominant Downwind Low/Med719.10.8343
Predominant Downwind Medium620.80.9665
Predominant Downwind Med/High562.41.0669
Predominant Downwind High529.31.1336
Predominant Reaching Low861.70.6963
Predominant Reaching Low/Med665.60.9014
Predominant Reaching Medium589.91.0171
Predominant Reaching Med/High549.31.0922
Predominant Reaching High527.51.1374
SA/DSPL Upwind21.13SA/DSPL Downwind33.15
Scoring OptionTODTOT
5-Band Windward/Leeward Low1207.80.4968
5-Band Windward/Leeward Low/Med903.40.6641
5-Band Windward/Leeward Medium780.00.7692
5-Band Windward/Leeward Med/High716.20.8378
5-Band Windward/Leeward High694.60.8638
Windward/Leeward 60-40 Low1219.80.4919
Windward/Leeward 60-40 Low/Med919.20.6528
Windward/Leeward 60-40 Medium799.90.7501
Windward/Leeward 60-40 Med/High742.10.8086
Windward/Leeward 60-40 High727.00.8253
5-Band AP Low883.50.6791
5-Band AP Low/Med712.50.8421
5-Band AP Medium628.50.9547
5-Band AP Med/High584.51.0265
5-Band AP High566.41.0594
5-Band SF Bay Tour - Low1048.20.5724
5-Band SF Bay Tour - Low/Med865.80.6930
5-Band SF Bay Tour - Medium753.30.7964
5-Band SF Bay Tour - Med/High697.40.8603
5-Band SF Bay Tour - High679.40.8832
Chicago-Mac Upwind0.8012
Chicago-Mac All Purpose0.8360
Chicago-Mac Downwind0.8666
Bayview-Mac Cove Island0.6198
Bayview-Mac Shore0.6238
Harvest Moon Regatta551.01.0890
Double HandedClub Certificate2025
TITAN IESP-10970_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassNORDSHIP 34Measurement23/02/2020HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.060Max. Beam3.320Draft1.486Displacement4,900Wetted area22.00IMS L7.777LSM07.739Acc. length9.746Sink (kg/mm) 15.26
VCGD-0.350VCGM-0.344RM Rated (kg·m) 118.2Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weightN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.300PBWPIPA0.0032
EDL1.700ST10.050ST20.170
ST30.170ST40.100ST50.250
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerIn mastArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P11.000IG12.552ISP12.752MDT10.100MDL10.110MDT2MDL2TLTaperMWGO
E4.020J3.650BAS1.582FSD0.050SFJ0.120SPLWPLTPS4.000BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered120.0Flotation Date01/01/2010
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
TITAN IESP-10970_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment127.14
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment15.13NoNo 34.13
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment112.61NaN68.99
CRUISER/RACER REQUIREMENTS*
Accommodation length9.7 mTable area0.44 m²Headroom1.68 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity74 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity44 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.