Club Certificate2025
EdgeNOR 6650
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 Angles44.1°44.1°42.3°40.8°39.8°39.0°38.7°39.0°40.4°
Beat VMG2.052.853.493.954.284.474.554.554.41
52°3.204.375.245.816.156.346.446.496.41
60°3.404.605.486.016.316.506.616.706.65
75°3.514.755.636.166.466.666.817.017.05
90°3.404.705.706.296.596.756.887.187.39
110°3.464.795.816.396.736.997.227.527.73
120°3.324.625.646.316.696.987.257.768.14
135°2.974.185.216.016.496.817.107.718.44
150°2.473.604.625.476.136.546.837.388.03
Run VMG2.143.114.014.775.445.976.376.937.44
Gybe Angles147.6°147.6°151.4°154.4°160.3°166.9°175.4°178.1°177.7°
APH ToD:645.9CDL: 7.084APH ToT: 0.9289CertNo:5066
BOAT
ClassFIRST 305DesignerJeanFerretBuilderBeneteauAge date01/1985Series date01/1985Offset fileH098.BOFData file5066
HULL
Length Overall9.800 mMaximum Beam3.222 mDraft1.762 mDisplacement4,011 kgDLR9.3552IMS DivisionCruiser/RacerDynamic Allowance0.490%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 3 bladesDiameter0.380m
CREW
Maximum weight460 kg(default)Minimum weight330 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19.1519.50Headsail Luffed24.3324.33Headsail FlyingSymmetric57.3157.31Asymmetric
STORM SAIL AREAS (m²)
Trysail5.60Storm Jib7.00Heavy Weather Jib18.89
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
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.
Club Certificate2025
EdgeNOR 6650
Norges Seilforbund
Sognsveien 73
0854 OSLO
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 VMG1758.21264.01031.2910.4840.7804.5791.2790.7815.4
52°1124.5824.4687.2619.3585.8568.1558.8554.7561.6
60°1059.6781.9657.4599.0570.7554.2544.3537.7541.0
75°1025.0758.5639.7584.1557.5540.6528.3513.5510.8
90°1059.1765.7631.4572.8546.6533.6523.3501.1486.9
110°1040.7751.9620.0563.2534.9514.9498.8478.5465.6
120°1084.6780.0638.1570.7538.2515.7496.7463.9442.3
135°1213.9861.9691.5599.0554.9528.5507.0467.0426.5
150°1455.01001.2779.2657.7587.3550.8526.9487.7448.4
Run VMG1681.61156.1898.8755.2662.3603.1565.2519.3484.0
Selected Courses
Windward / Leeward1718.61210.0965.0832.8751.5703.8678.2655.0649.7
All purpose1310.3936.6759.8669.6619.6591.1574.1553.9544.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward790.30.7592
All purpose645.90.9289
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6529
Downwind "popa"0.8139
70% up, 30% down "Ilhabela"0.6941
30% up, 70% down "Ilhabela-inverso"0.7579
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Predominantly Upwind701.70.8551
Predominantly Downwind652.80.9192
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low848.20.7074
Triple Number AP Medium640.90.9362
Triple Number AP High570.81.0512
Triple Number Windward/Leeward Low1137.50.5275
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Single Number Predominant Upwind733.40.8182
Single Number Predominant Reaching647.20.9270
Single Number Predominant Downwind684.40.8767
Predominant Upwind - Low1038.00.5780
Predominant Upwind - Low/Med779.40.7698
Predominant Upwind - Medium676.30.8872
Predominant Upwind - Med/High626.40.9579
Predominant Upwind - High612.10.9802
Predominant Downwind Low1022.20.5870
Predominant Downwind Low/Med743.90.8066
Predominant Downwind Medium626.70.9574
Predominant Downwind Med/High559.81.0718
Predominant Downwind High525.71.1413
Predominant Reaching Low920.00.6521
Predominant Reaching Low/Med688.70.8712
Predominant Reaching Medium598.71.0021
Predominant Reaching Med/High551.71.0875
Predominant Reaching High527.21.1382
SA/DSPL Upwind17.14SA/DSPL Downwind30.15
Scoring OptionTODTOT
5-Band Windward/Leeward Low1276.20.4701
5-Band Windward/Leeward Low/Med923.00.6501
5-Band Windward/Leeward Medium768.70.7805
5-Band Windward/Leeward Med/High684.80.8762
5-Band Windward/Leeward High658.10.9117
Windward/Leeward 60-40 Low1286.90.4662
Windward/Leeward 60-40 Low/Med937.30.6401
Windward/Leeward 60-40 Medium786.60.7628
Windward/Leeward 60-40 Med/High707.30.8483
Windward/Leeward 60-40 High685.50.8753
5-Band AP Low941.70.6371
5-Band AP Low/Med733.30.8182
5-Band AP Medium631.00.9509
5-Band AP Med/High577.41.0392
5-Band AP High555.81.0795
5-Band SF Bay Tour - Low1100.30.5453
5-Band SF Bay Tour - Low/Med885.50.6776
5-Band SF Bay Tour - Medium745.30.8051
5-Band SF Bay Tour - Med/High671.60.8934
5-Band SF Bay Tour - High647.80.9262
Chicago-Mac Upwind0.7905
Chicago-Mac All Purpose0.8197
Chicago-Mac Downwind0.8445
Bayview-Mac Cove Island0.5908
Bayview-Mac Shore0.5946
Harvest Moon Regatta561.51.0686
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance702.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating702.30.8544
FinRating, kevyt tuuli1255.60.7964
FinRating, kova tuuli560.30.8924
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8544
Triple Number Coastal/Long Distance Low0.7074
Triple Number Coastal/Long Distance Medium0.9363
Triple Number Coastal/Long Distance High1.0512
Triple Number Windward/Leeward Low0.5517
Triple Number Windward/Leeward Medium0.7649
Triple Number Windward/Leeward High0.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
For information
General Purpose Handicap (GPH)728.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low848.2
Triple Number Coastal/Long Distance Medium640.8
Triple Number Coastal/Long Distance High570.8
Triple Number Windward/Leeward Low1087.5
Triple Number Windward/Leeward Medium784.4
Triple Number Windward/Leeward High675.9
Predominantly Upwind701.7
Predominantly Downwind652.8
Predominantly Reaching628.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7074
Triple Number Coastal/Long Distance Medium0.9363
Triple Number Coastal/Long Distance High1.0512
Triple Number Windward/Leeward Low0.5517
Triple Number Windward/Leeward Medium0.7649
Triple Number Windward/Leeward High0.8877
Coastal/Long Distance0.8544
Predominantly Upwind0.8551
Predominantly Downwind0.9192
For information
General Purpose Handicap (GPH)728.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9289
Distanseseilas Trippeltall svak vind0.7074
Distanseseilas Trippeltall mellomvind0.9363
Distanseseilas Trippeltall sterk vind1.0512
Pølsebane Trippeltall svak vind0.5517
Pølsebane Trippeltall mellomvind0.7649
Pølsebane Trippeltall sterk vind0.8877
Motvind Singeltall0.8551
Medvind Singeltall0.9192
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Coastal/Long Distance702.30.8544
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind701.70.8551
Predominantly Downwind652.80.9192
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore651.30.9212
Cape Doctor Coastal547.51.0960
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7074
Triple Number Coastal/Long Distance Medium0.9363
Triple Number Coastal/Long Distance High1.0512
Triple Number Windward/Leeward Low0.5517
Triple Number Windward/Leeward Medium0.7649
Triple Number Windward/Leeward High0.8877
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7074
Triple Number Coastal/Long Distance Medium0.9363
Triple Number Coastal/Long Distance High1.0512
Triple Number Windward/Leeward Low0.5517
Triple Number Windward/Leeward Medium0.7649
Triple Number Windward/Leeward High0.8877
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Predominantly Upwind701.70.8551
Predominantly Downwind652.80.9192
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.30.8544
Triple Number Coastal/Long Distance Low848.20.7074
Triple Number Coastal/Long Distance Medium640.80.9363
Triple Number Coastal/Long Distance High570.81.0512
Triple Number Windward/Leeward Low1087.50.5517
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1816.71204.7907.3752.0660.6613.1580.5530.4518.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low848.20.7074
Triple Number AP Medium640.90.9362
Triple Number AP High570.81.0512
Triple Number Windward/Leeward Low1137.50.5275
Triple Number Windward/Leeward Medium784.40.7649
Triple Number Windward/Leeward High675.90.8877
Single Number Predominant Upwind733.40.8182
Single Number Predominant Reaching647.20.9270
Single Number Predominant Downwind684.40.8767
Predominant Upwind - Low1038.00.5780
Predominant Upwind - Low/Med779.40.7698
Predominant Upwind - Medium676.30.8872
Predominant Upwind - Med/High626.40.9579
Predominant Upwind - High612.10.9802
Predominant Downwind Low1022.20.5870
Predominant Downwind Low/Med743.90.8066
Predominant Downwind Medium626.70.9574
Predominant Downwind Med/High559.81.0718
Predominant Downwind High525.71.1413
Predominant Reaching Low920.00.6521
Predominant Reaching Low/Med688.70.8712
Predominant Reaching Medium598.71.0021
Predominant Reaching Med/High551.71.0875
Predominant Reaching High527.21.1382
SA/DSPL Upwind17.14SA/DSPL Downwind30.15
Scoring OptionTODTOT
5-Band Windward/Leeward Low1276.20.4701
5-Band Windward/Leeward Low/Med923.00.6501
5-Band Windward/Leeward Medium768.70.7805
5-Band Windward/Leeward Med/High684.80.8762
5-Band Windward/Leeward High658.10.9117
Windward/Leeward 60-40 Low1286.90.4662
Windward/Leeward 60-40 Low/Med937.30.6401
Windward/Leeward 60-40 Medium786.60.7628
Windward/Leeward 60-40 Med/High707.30.8483
Windward/Leeward 60-40 High685.50.8753
5-Band AP Low941.70.6371
5-Band AP Low/Med733.30.8182
5-Band AP Medium631.00.9509
5-Band AP Med/High577.41.0392
5-Band AP High555.81.0795
5-Band SF Bay Tour - Low1100.30.5453
5-Band SF Bay Tour - Low/Med885.50.6776
5-Band SF Bay Tour - Medium745.30.8051
5-Band SF Bay Tour - Med/High671.60.8934
5-Band SF Bay Tour - High647.80.9262
Chicago-Mac Upwind0.7905
Chicago-Mac All Purpose0.8197
Chicago-Mac Downwind0.8445
Bayview-Mac Cove Island0.5908
Bayview-Mac Shore0.5946
Harvest Moon Regatta561.51.0686
Club Certificate2025
EdgeNOR 6650
Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFIRST 305MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.800Max. Beam3.222Draft1.762Displacement4,011Wetted area18.66IMS L7.859LSM07.540Acc. length9.302Sink (kg/mm) 13.08
VCGD-0.042VCGM0.083RM Rated (kg·m) 57.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight460Declared crew weightN/A
PROPELLER
Propeller TypeFolding 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0056
PSD0.025PHD0.068PHL0.115
PSA23.0°ESL0.820
ST10.027ST20.072ST30.072
ST40.072ST50.072
RIG
Forestay tensionAftInner stayFixedMast materialSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P9.830IG11.656ISP11.656MDT10.130MDL10.180MDT20.130MDL20.180TL0.000MW0.180GO0.230
E3.250J3.440BAS1.367FSDFoilSFJ0.000SPL3.520WPLTPS0.000BD0.000MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.042Flotation Date01/01/2015
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
EdgeNOR 6650
Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment469-2012043010440.140.691.252.052.8019.1530/04/2012
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment306-2025051307460.050.511.012.123.384.7010.90NoNo 24.3313/05/2025Rullegenoa Spirit 2025
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment469-20140326130211.1011.1011.106.226.1057.3126/03/2014
CRUISER/RACER REQUIREMENTS*
Accommodation length9.3 mTable area0.44 m²Headroom1.65 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity66 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity36 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.