Club Certificate2025
YASTAESP-3385_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 Angles45.2°45.2°43.2°41.3°40.1°39.6°39.3°40.4°41.5°
Beat VMG2.483.494.344.965.345.515.605.665.59
52°3.955.436.587.347.777.988.088.188.19
60°4.275.796.907.618.018.248.358.508.55
75°4.506.047.127.808.228.528.769.039.21
90°4.385.927.047.838.338.648.959.509.83
110°4.155.827.168.038.599.119.5910.2910.85
120°4.035.666.997.908.499.039.5710.7611.76
135°3.525.036.367.398.108.649.1710.3411.99
150°2.914.235.446.507.378.008.469.3610.39
Run VMG2.523.664.715.636.386.947.408.209.00
Gybe Angles142.6°142.6°146.2°148.3°149.8°152.2°156.5°159.2°148.7°
APH ToD:520.8CDL: 10.766APH ToT: 1.1521CertNo:338501
BOAT
ClassSun Odyssey 440DesignerBriandBuilderJeanneauAge date01/2020Series date01/2019Offset fileso440_DV.offData fileE3385_C
HULL
Length Overall12.640 mMaximum Beam4.294 mDraft2.156 mDisplacement8,425 kgDLR5.4093IMS DivisionCruiser/RacerDynamic Allowance0.200%Age Allowance0.195%
PROPELLER
InstallationShaft exposedTypeSolid 3 bladesDiameter0.400m
CREW
Maximum weight320 kg(declared)Minimum weight190 kg ✱ when appliedNon Manual PowerYesCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail46.6447.64Headsail Luffed61.3461.34Headsail FlyingSymmetricAsymmetric126.66126.66 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail13.30Storm Jib11.54Heavy Weather Jib31.15
SAIL LIMITS
Headsails6
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
CASCO DISEÑADOR. MEDIDAS ESTIMADAS.
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
YASTAESP-3385_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 VMG1453.11031.5830.0725.8674.4653.4642.7636.4644.5
52°912.5662.7547.2490.6463.3451.4445.6439.9439.7
60°844.1622.1521.8473.1449.3437.0431.2423.7421.2
75°800.5595.9505.3461.4438.1422.5411.1398.5390.7
90°822.7608.6511.4460.0432.2416.5402.3378.9366.1
110°866.6618.8502.9448.2418.9395.2375.2349.7331.9
120°892.4636.0514.8455.4423.9398.6376.0334.7306.2
135°1022.5715.2566.2487.0444.4416.7392.5348.1300.2
150°1238.7852.0661.7554.0488.7450.2425.5384.4346.5
Run VMG1430.2983.9764.1639.8564.2518.4486.4439.2400.1
Selected Courses
Windward / Leeward1441.21007.7797.0682.8619.3585.9564.5537.8522.3
All purpose1081.1768.5619.2541.1498.9475.0458.1434.7419.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward653.00.9189
All purpose520.81.1521
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8086
Downwind "popa"0.9554
70% up, 30% down "Ilhabela"0.8477
30% up, 70% down "Ilhabela-inverso"0.9061
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Predominantly Upwind564.41.0630
Predominantly Downwind533.81.1239
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low693.90.8647
Triple Number AP Medium517.11.1604
Triple Number AP High453.61.3228
Triple Number Windward/Leeward Low944.80.6350
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Single Number Predominant Upwind590.21.0165
Single Number Predominant Reaching518.61.1569
Single Number Predominant Downwind559.71.0720
Predominant Upwind - Low846.30.7089
Predominant Upwind - Low/Med628.70.9543
Predominant Upwind - Medium542.91.1052
Predominant Upwind - Med/High501.81.1958
Predominant Upwind - High484.91.2373
Predominant Downwind Low848.80.7069
Predominant Downwind Low/Med612.60.9794
Predominant Downwind Medium512.11.1717
Predominant Downwind Med/High452.11.3273
Predominant Downwind High415.91.4428
Predominant Reaching Low749.20.8009
Predominant Reaching Low/Med557.81.0756
Predominant Reaching Medium479.71.2509
Predominant Reaching Med/High434.81.3799
Predominant Reaching High407.71.4717
SA/DSPL Upwind25.90SA/DSPL Downwind41.56
Scoring OptionTODTOT
5-Band Windward/Leeward Low1063.50.5642
5-Band Windward/Leeward Low/Med761.50.7879
5-Band Windward/Leeward Medium634.60.9455
5-Band Windward/Leeward Med/High568.21.0559
5-Band Windward/Leeward High539.71.1117
Windward/Leeward 60-40 Low1068.10.5617
Windward/Leeward 60-40 Low/Med769.20.7800
Windward/Leeward 60-40 Medium645.60.9294
Windward/Leeward 60-40 Med/High583.81.0278
Windward/Leeward 60-40 High559.61.0723
5-Band AP Low771.50.7777
5-Band AP Low/Med595.91.0069
5-Band AP Medium508.51.1799
5-Band AP Med/High460.51.3030
5-Band AP High436.11.3759
5-Band SF Bay Tour - Low910.90.6587
5-Band SF Bay Tour - Low/Med726.30.8261
5-Band SF Bay Tour - Medium609.40.9846
5-Band SF Bay Tour - Med/High549.01.0929
5-Band SF Bay Tour - High522.41.1486
Chicago-Mac Upwind0.9814
Chicago-Mac All Purpose1.0089
Chicago-Mac Downwind1.0289
Bayview-Mac Cove Island0.7175
Bayview-Mac Shore0.7230
Harvest Moon Regatta444.41.3502
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance570.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating570.01.0527
FinRating, kevyt tuuli1044.00.9579
FinRating, kova tuuli437.71.1424
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0527
Triple Number Coastal/Long Distance Low0.8647
Triple Number Coastal/Long Distance Medium1.1605
Triple Number Coastal/Long Distance High1.3228
Triple Number Windward/Leeward Low0.6649
Triple Number Windward/Leeward Medium0.9274
Triple Number Windward/Leeward High1.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
For information
General Purpose Handicap (GPH)589.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low693.9
Triple Number Coastal/Long Distance Medium517.0
Triple Number Coastal/Long Distance High453.6
Triple Number Windward/Leeward Low902.4
Triple Number Windward/Leeward Medium647.0
Triple Number Windward/Leeward High559.9
Predominantly Upwind564.4
Predominantly Downwind533.8
Predominantly Reaching507.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8647
Triple Number Coastal/Long Distance Medium1.1605
Triple Number Coastal/Long Distance High1.3228
Triple Number Windward/Leeward Low0.6649
Triple Number Windward/Leeward Medium0.9274
Triple Number Windward/Leeward High1.0717
Coastal/Long Distance1.0527
Predominantly Upwind1.0630
Predominantly Downwind1.1239
For information
General Purpose Handicap (GPH)589.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1521
Distanseseilas Trippeltall svak vind0.8647
Distanseseilas Trippeltall mellomvind1.1605
Distanseseilas Trippeltall sterk vind1.3228
Pølsebane Trippeltall svak vind0.6649
Pølsebane Trippeltall mellomvind0.9274
Pølsebane Trippeltall sterk vind1.0717
Motvind Singeltall1.0630
Medvind Singeltall1.1239
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Coastal/Long Distance570.01.0527
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind564.41.0630
Predominantly Downwind533.81.1239
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore526.91.1387
Cape Doctor Coastal423.81.4159
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8647
Triple Number Coastal/Long Distance Medium1.1605
Triple Number Coastal/Long Distance High1.3228
Triple Number Windward/Leeward Low0.6649
Triple Number Windward/Leeward Medium0.9274
Triple Number Windward/Leeward High1.0717
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8647
Triple Number Coastal/Long Distance Medium1.1605
Triple Number Coastal/Long Distance High1.3228
Triple Number Windward/Leeward Low0.6649
Triple Number Windward/Leeward Medium0.9274
Triple Number Windward/Leeward High1.0717
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Predominantly Upwind564.41.0630
Predominantly Downwind533.81.1239
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance570.01.0527
Triple Number Coastal/Long Distance Low693.90.8647
Triple Number Coastal/Long Distance Medium517.01.1605
Triple Number Coastal/Long Distance High453.61.3228
Triple Number Windward/Leeward Low902.40.6649
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.31005.3748.1612.7534.5494.0462.8411.4394.2
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low693.90.8647
Triple Number AP Medium517.11.1604
Triple Number AP High453.61.3228
Triple Number Windward/Leeward Low944.80.6350
Triple Number Windward/Leeward Medium647.00.9274
Triple Number Windward/Leeward High559.91.0717
Single Number Predominant Upwind590.21.0165
Single Number Predominant Reaching518.61.1569
Single Number Predominant Downwind559.71.0720
Predominant Upwind - Low846.30.7089
Predominant Upwind - Low/Med628.70.9543
Predominant Upwind - Medium542.91.1052
Predominant Upwind - Med/High501.81.1958
Predominant Upwind - High484.91.2373
Predominant Downwind Low848.80.7069
Predominant Downwind Low/Med612.60.9794
Predominant Downwind Medium512.11.1717
Predominant Downwind Med/High452.11.3273
Predominant Downwind High415.91.4428
Predominant Reaching Low749.20.8009
Predominant Reaching Low/Med557.81.0756
Predominant Reaching Medium479.71.2509
Predominant Reaching Med/High434.81.3799
Predominant Reaching High407.71.4717
SA/DSPL Upwind25.90SA/DSPL Downwind41.56
Scoring OptionTODTOT
5-Band Windward/Leeward Low1063.50.5642
5-Band Windward/Leeward Low/Med761.50.7879
5-Band Windward/Leeward Medium634.60.9455
5-Band Windward/Leeward Med/High568.21.0559
5-Band Windward/Leeward High539.71.1117
Windward/Leeward 60-40 Low1068.10.5617
Windward/Leeward 60-40 Low/Med769.20.7800
Windward/Leeward 60-40 Medium645.60.9294
Windward/Leeward 60-40 Med/High583.81.0278
Windward/Leeward 60-40 High559.61.0723
5-Band AP Low771.50.7777
5-Band AP Low/Med595.91.0069
5-Band AP Medium508.51.1799
5-Band AP Med/High460.51.3030
5-Band AP High436.11.3759
5-Band SF Bay Tour - Low910.90.6587
5-Band SF Bay Tour - Low/Med726.30.8261
5-Band SF Bay Tour - Medium609.40.9846
5-Band SF Bay Tour - Med/High549.01.0929
5-Band SF Bay Tour - High522.41.1486
Chicago-Mac Upwind0.9814
Chicago-Mac All Purpose1.0089
Chicago-Mac Downwind1.0289
Bayview-Mac Cove Island0.7175
Bayview-Mac Shore0.7230
Harvest Moon Regatta444.41.3502
Club Certificate2025
YASTAESP-3385_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSun Odyssey 440MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA12.640Max. Beam4.294Draft2.156Displacement8,425Wetted area36.88IMS L11.728LSM011.591Acc. length12.640Sink (kg/mm) 29.58
VCGD-0.117VCGM-0.075RM Rated (kg·m) 332.4Limit of positive stability(°) N/AStability IndexN/ADefault crew weight850Declared crew weight320
PROPELLER
Propeller TypeSolid 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.400PBWPIPA0.0212
PSD0.030PHD0.070PHL0.110
PSA16.0°ESL0.833
ST10.025ST20.102ST30.110
ST40.058ST50.220
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P15.200IG15.190ISP15.820MDT10.100MDL10.110MDT2MDL2TLMWGO
E5.000J5.240BAS1.400FSD0.050SFJSPLWPLTPS6.000BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.100Flotation Date01/01/2010
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
YASTAESP-3385_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment146.64
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment17.50NoNo 61.34
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment115.84NaN126.66
CRUISER/RACER REQUIREMENTS*
Accommodation length12.6 mTable area0.55 m²Headroom1.84 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity165 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity102 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.