Double HandedClub Certificate2025
PauLinaFIN6178
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 Angles44.2°44.2°42.3°41.0°40.3°39.9°39.8°40.1°41.3°
Beat VMG2.623.664.485.045.345.485.565.615.51
52°4.195.696.777.457.817.988.078.178.14
60°4.606.167.217.738.088.268.358.468.47
75°5.006.607.618.138.378.568.728.929.01
90°5.056.687.728.308.658.909.079.339.58
110°4.656.287.458.168.608.969.329.9210.42
120°4.305.877.077.928.488.919.3310.1611.01
135°3.565.066.377.418.128.619.049.9411.05
150°2.924.255.476.527.377.958.379.059.76
Run VMG2.533.684.745.656.386.897.378.379.07
Gybe Angles142.9°142.9°146.9°148.0°148.5°149.3°176.3°178.4°178.6°
APH ToD:515.5CDL: 11.218APH ToT: 1.1639CertNo:
BOAT
ClassFirst 47.7DesignerBruce FarrBuilderBeneteauAge date01/2002Series date08/1999Offset fileF191.offData fileFIN6178
HULL
Length Overall14.506 mMaximum Beam4.512 mDraft2.277 mDisplacement11,700 kgDLR6.0362IMS DivisionCruiser/RacerDynamic Allowance0.300%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 3 bladesDiameter0.520m
CREW
Maximum weight160 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail62.5263.39Headsail Luffed51.7651.76Headsail Flying96.1896.18SymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail19.65Storm Jib16.37Heavy Weather Jib44.18
SAIL LIMITS
Headsails6Spinnakers0
✱ 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
PauLinaFIN6178
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 VMG1372.5984.8802.8714.1674.1656.4646.9641.3653.4
52°859.4633.2531.4483.5460.9451.4445.8440.7442.1
60°783.2584.3499.4465.7445.5436.0431.0425.4425.1
75°719.7545.5473.2443.0429.9420.7412.9403.8399.7
90°712.7539.1466.3433.9416.4404.6396.8386.0375.9
110°774.8573.1483.2441.3418.8401.6386.1363.0345.5
120°837.3613.0509.3454.7424.6404.0385.9354.4327.1
135°1010.8711.0565.4486.2443.2418.1398.1362.2325.8
150°1232.9847.3657.8552.1488.7452.7430.1397.7368.7
Run VMG1423.8978.3759.6637.6564.3522.7488.3430.0396.7
Selected Courses
Windward / Leeward1397.1981.5781.2675.8619.2589.6567.6535.7525.0
All purpose1023.2735.7600.5532.1496.1475.9461.6441.4430.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward649.60.9237
All purpose515.51.1639
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8203
Downwind "popa"0.9587
70% up, 30% down "Ilhabela"0.8574
30% up, 70% down "Ilhabela-inverso"0.9125
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Predominantly Upwind556.41.0783
Predominantly Downwind528.71.1348
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low668.10.8980
Triple Number AP Medium511.81.1723
Triple Number AP High457.61.3112
Triple Number Windward/Leeward Low922.50.6504
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Single Number Predominant Upwind580.21.0341
Single Number Predominant Reaching506.91.1836
Single Number Predominant Downwind554.11.0829
Predominant Upwind - Low807.30.7432
Predominant Upwind - Low/Med611.70.9809
Predominant Upwind - Medium537.71.1158
Predominant Upwind - Med/High502.91.1932
Predominant Upwind - High488.91.2272
Predominant Downwind Low826.70.7258
Predominant Downwind Low/Med602.50.9959
Predominant Downwind Medium508.61.1796
Predominant Downwind Med/High453.61.3227
Predominant Downwind High420.21.4279
Predominant Reaching Low709.60.8456
Predominant Reaching Low/Med538.91.1133
Predominant Reaching Medium471.71.2720
Predominant Reaching Med/High434.71.3802
Predominant Reaching High414.01.4494
SA/DSPL Upwind21.99SA/DSPL Downwind30.54
Scoring OptionTODTOT
5-Band Windward/Leeward Low1035.60.5794
5-Band Windward/Leeward Low/Med749.60.8004
5-Band Windward/Leeward Medium632.90.9480
5-Band Windward/Leeward Med/High570.31.0521
5-Band Windward/Leeward High539.41.1124
Windward/Leeward 60-40 Low1035.70.5793
Windward/Leeward 60-40 Low/Med755.60.7941
Windward/Leeward 60-40 Medium643.50.9323
Windward/Leeward 60-40 Med/High586.21.0236
Windward/Leeward 60-40 High560.41.0707
5-Band AP Low737.40.8137
5-Band AP Low/Med580.91.0329
5-Band AP Medium504.51.1893
5-Band AP Med/High463.51.2945
5-Band AP High442.91.3547
5-Band SF Bay Tour - Low886.50.6768
5-Band SF Bay Tour - Low/Med714.30.8400
5-Band SF Bay Tour - Medium607.70.9874
5-Band SF Bay Tour - Med/High552.31.0864
5-Band SF Bay Tour - High526.31.1400
Chicago-Mac Upwind1.0018
Chicago-Mac All Purpose1.0279
Chicago-Mac Downwind1.0420
Bayview-Mac Cove Island0.7389
Bayview-Mac Shore0.7466
Harvest Moon Regatta442.31.3566
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance565.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating565.51.0611
FinRating, kevyt tuuli1012.10.9880
FinRating, kova tuuli445.41.1226
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0611
Triple Number Coastal/Long Distance Low0.8980
Triple Number Coastal/Long Distance Medium1.1724
Triple Number Coastal/Long Distance High1.3112
Triple Number Windward/Leeward Low0.6808
Triple Number Windward/Leeward Medium0.9314
Triple Number Windward/Leeward High1.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
For information
General Purpose Handicap (GPH)579.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low668.2
Triple Number Coastal/Long Distance Medium511.8
Triple Number Coastal/Long Distance High457.6
Triple Number Windward/Leeward Low881.3
Triple Number Windward/Leeward Medium644.2
Triple Number Windward/Leeward High561.1
Predominantly Upwind556.4
Predominantly Downwind528.7
Predominantly Reaching498.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8980
Triple Number Coastal/Long Distance Medium1.1724
Triple Number Coastal/Long Distance High1.3112
Triple Number Windward/Leeward Low0.6808
Triple Number Windward/Leeward Medium0.9314
Triple Number Windward/Leeward High1.0693
Coastal/Long Distance1.0611
Predominantly Upwind1.0783
Predominantly Downwind1.1348
For information
General Purpose Handicap (GPH)579.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1639
Distanseseilas Trippeltall svak vind0.8980
Distanseseilas Trippeltall mellomvind1.1724
Distanseseilas Trippeltall sterk vind1.3112
Pølsebane Trippeltall svak vind0.6808
Pølsebane Trippeltall mellomvind0.9314
Pølsebane Trippeltall sterk vind1.0693
Motvind Singeltall1.0783
Medvind Singeltall1.1348
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Coastal/Long Distance565.51.0611
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind556.41.0783
Predominantly Downwind528.71.1348
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore528.21.1359
Cape Doctor Coastal433.41.3844
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8980
Triple Number Coastal/Long Distance Medium1.1724
Triple Number Coastal/Long Distance High1.3112
Triple Number Windward/Leeward Low0.6808
Triple Number Windward/Leeward Medium0.9314
Triple Number Windward/Leeward High1.0693
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8980
Triple Number Coastal/Long Distance Medium1.1724
Triple Number Coastal/Long Distance High1.3112
Triple Number Windward/Leeward Low0.6808
Triple Number Windward/Leeward Medium0.9314
Triple Number Windward/Leeward High1.0693
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Predominantly Upwind556.41.0783
Predominantly Downwind528.71.1348
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance565.51.0611
Triple Number Coastal/Long Distance Low668.20.8980
Triple Number Coastal/Long Distance Medium511.81.1724
Triple Number Coastal/Long Distance High457.61.3112
Triple Number Windward/Leeward Low881.30.6808
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1498.8981.2731.6605.1532.3494.9465.6419.1405.1
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low668.10.8980
Triple Number AP Medium511.81.1723
Triple Number AP High457.61.3112
Triple Number Windward/Leeward Low922.50.6504
Triple Number Windward/Leeward Medium644.20.9314
Triple Number Windward/Leeward High561.11.0693
Single Number Predominant Upwind580.21.0341
Single Number Predominant Reaching506.91.1836
Single Number Predominant Downwind554.11.0829
Predominant Upwind - Low807.30.7432
Predominant Upwind - Low/Med611.70.9809
Predominant Upwind - Medium537.71.1158
Predominant Upwind - Med/High502.91.1932
Predominant Upwind - High488.91.2272
Predominant Downwind Low826.70.7258
Predominant Downwind Low/Med602.50.9959
Predominant Downwind Medium508.61.1796
Predominant Downwind Med/High453.61.3227
Predominant Downwind High420.21.4279
Predominant Reaching Low709.60.8456
Predominant Reaching Low/Med538.91.1133
Predominant Reaching Medium471.71.2720
Predominant Reaching Med/High434.71.3802
Predominant Reaching High414.01.4494
SA/DSPL Upwind21.99SA/DSPL Downwind30.54
Scoring OptionTODTOT
5-Band Windward/Leeward Low1035.60.5794
5-Band Windward/Leeward Low/Med749.60.8004
5-Band Windward/Leeward Medium632.90.9480
5-Band Windward/Leeward Med/High570.31.0521
5-Band Windward/Leeward High539.41.1124
Windward/Leeward 60-40 Low1035.70.5793
Windward/Leeward 60-40 Low/Med755.60.7941
Windward/Leeward 60-40 Medium643.50.9323
Windward/Leeward 60-40 Med/High586.21.0236
Windward/Leeward 60-40 High560.41.0707
5-Band AP Low737.40.8137
5-Band AP Low/Med580.91.0329
5-Band AP Medium504.51.1893
5-Band AP Med/High463.51.2945
5-Band AP High442.91.3547
5-Band SF Bay Tour - Low886.50.6768
5-Band SF Bay Tour - Low/Med714.30.8400
5-Band SF Bay Tour - Medium607.70.9874
5-Band SF Bay Tour - Med/High552.31.0864
5-Band SF Bay Tour - High526.31.1400
Chicago-Mac Upwind1.0018
Chicago-Mac All Purpose1.0279
Chicago-Mac Downwind1.0420
Bayview-Mac Cove Island0.7389
Bayview-Mac Shore0.7466
Harvest Moon Regatta442.31.3566
Double HandedClub Certificate2025
PauLinaFIN6178
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFirst 47.7Measurement07/09/2020HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA14.506Max. Beam4.512Draft2.277Displacement11,700Wetted area41.67IMS L12.621LSM012.467Acc. length14.506Sink (kg/mm) 31.96
VCGD0.060VCGM0.104RM Rated (kg·m) 343.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight160
PROPELLER
Propeller TypeFolding 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.520PBWPIPA0.0026
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionFixedInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders3Rotating mastNo
P17.400IG18.090ISP18.700MDT10.145MDL10.255MDT2MDL2TLNo TaperMWGO
E6.450J5.250BAS1.434FSDSFJSPL5.774WPLTPS5.250BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date07/09/2020
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
PauLinaFIN6178
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20.171.112.083.815.1862.5223/06/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentGennaker0.071.552.985.617.649.1818.66NoYes096.1830/03/2024G Zero Gennaker30.090.971.753.154.435.2617.43NoNo 51.7626/05/2023mitat uk sails t.l.
CRUISER/RACER REQUIREMENTS*
Accommodation length14.5 mTable area0.66 m²Headroom1.90 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity255 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity140 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.