Double HandedClub Certificate2025
FansLAT 441
Latvijas Jūras
burāšanas asociācija
Grecinieku street 11A-5, Riga
Riga LV-1050 Latvia
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 Angles41.8°41.8°39.7°38.4°38.2°38.6°39.2°40.9°45.5°
Beat VMG2.132.883.413.703.773.783.763.663.45
52°3.274.304.935.225.325.365.385.375.29
60°3.474.505.085.355.485.535.565.585.54
75°3.604.635.195.475.665.785.845.925.93
90°3.654.735.335.605.735.936.086.276.35
110°3.664.755.375.726.026.256.426.737.00
120°3.434.565.295.676.016.366.707.237.71
135°2.914.044.935.485.836.216.677.989.50
150°2.443.494.425.125.575.906.277.359.45
Run VMG2.113.033.844.535.115.495.806.528.19
Gybe Angles148.9°148.9°153.7°161.5°169.1°178.1°178.1°167.2°149.9°
APH ToD:714.8CDL: 5.152APH ToT: 0.8394CertNo:015/25
BOAT
ClassNevaDesignerI. SidenkoBuilderSNSZAge date01/1993Series date01/1993Offset fileNeva_RF.offData fileLAT-441
HULL
Length Overall6.435 mMaximum Beam2.484 mDraft1.437 mDisplacement946 kgDLR7.0135IMS DivisionPerformanceDynamic Allowance0.160%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight145 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail14.4614.67Headsail Luffed10.2410.24Headsail FlyingSymmetric28.8328.83Asymmetric
STORM SAIL AREAS (m²)
Trysail4.48Storm Jib2.21Heavy Weather Jib5.97
SAIL LIMITS
Headsails5
✱ Woven polyester sails
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.
Double HandedClub Certificate2025
FansLAT 441
Latvijas Jūras
burāšanas asociācija
Grecinieku street 11A-5, Riga
Riga LV-1050 Latvia
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 VMG1689.11250.51056.0973.3954.3953.3957.8982.71043.0
52°1099.4836.7730.0689.6676.2671.7669.4670.6680.8
60°1037.1800.7709.2672.7657.2651.3647.6645.4649.4
75°998.8777.1694.0658.0636.0623.1616.5608.1606.9
90°985.2761.8676.0642.8627.8607.2591.8574.4566.7
110°983.4758.1669.8629.0598.1575.6560.8535.2514.2
120°1050.2789.9680.7634.8598.7565.7537.2498.0466.7
135°1238.6891.0730.1656.6617.2579.8539.4451.3378.9
150°1473.21030.2815.3702.6646.8610.5574.4489.5380.8
Run VMG1706.11189.5937.2794.7705.1655.5620.5552.6439.8
Selected Courses
Windward / Leeward1695.21220.0996.6884.0829.7804.4789.2767.6741.4
All purpose1279.6946.7798.3729.1696.0676.0660.7635.5616.4
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward864.60.6940
All purpose714.80.8394
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5892
Downwind "popa"0.7699
70% up, 30% down "Ilhabela"0.6339
30% up, 70% down "Ilhabela-inverso"0.7051
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Predominantly Upwind779.40.7699
Predominantly Downwind708.40.8470
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low872.50.6877
Triple Number AP Medium710.60.8443
Triple Number AP High655.10.9159
Triple Number Windward/Leeward Low1156.00.5190
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Single Number Predominant Upwind807.20.7433
Single Number Predominant Reaching705.40.8506
Single Number Predominant Downwind735.70.8155
Predominant Upwind - Low1040.40.5767
Predominant Upwind - Low/Med828.80.7239
Predominant Upwind - Medium761.10.7883
Predominant Upwind - Med/High733.60.8179
Predominant Upwind - High724.90.8277
Predominant Downwind Low1041.30.5762
Predominant Downwind Low/Med789.90.7596
Predominant Downwind Medium689.00.8708
Predominant Downwind Med/High621.70.9650
Predominant Downwind High568.21.0560
Predominant Reaching Low928.10.6465
Predominant Reaching Low/Med738.30.8126
Predominant Reaching Medium670.10.8954
Predominant Reaching Med/High623.90.9617
Predominant Reaching High589.71.0174
SA/DSPL Upwind25.65SA/DSPL Downwind44.94
Scoring OptionTODTOT
5-Band Windward/Leeward Low1283.60.4675
5-Band Windward/Leeward Low/Med965.20.6217
5-Band Windward/Leeward Medium845.00.7100
5-Band Windward/Leeward Med/High791.50.7581
5-Band Windward/Leeward High766.80.7825
Windward/Leeward 60-40 Low1289.10.4654
Windward/Leeward 60-40 Low/Med980.20.6121
Windward/Leeward 60-40 Medium869.20.6903
Windward/Leeward 60-40 Med/High825.40.7269
Windward/Leeward 60-40 High811.20.7396
5-Band AP Low953.40.6293
5-Band AP Low/Med780.60.7686
5-Band AP Medium703.70.8527
5-Band AP Med/High662.00.9064
5-Band AP High636.60.9425
5-Band SF Bay Tour - Low1113.80.5387
5-Band SF Bay Tour - Low/Med929.20.6457
5-Band SF Bay Tour - Medium824.00.7281
5-Band SF Bay Tour - Med/High776.20.7730
5-Band SF Bay Tour - High752.30.7975
Chicago-Mac Upwind0.7271
Chicago-Mac All Purpose0.7595
Chicago-Mac Downwind0.7892
Bayview-Mac Cove Island0.5751
Bayview-Mac Shore0.5794
Harvest Moon Regatta620.90.9663
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance771.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating771.80.7774
FinRating, kevyt tuuli1259.40.7941
FinRating, kova tuuli638.10.7835
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7774
Triple Number Coastal/Long Distance Low0.6877
Triple Number Coastal/Long Distance Medium0.8444
Triple Number Coastal/Long Distance High0.9159
Triple Number Windward/Leeward Low0.5414
Triple Number Windward/Leeward Medium0.7014
Triple Number Windward/Leeward High0.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
For information
General Purpose Handicap (GPH)791.5
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low872.5
Triple Number Coastal/Long Distance Medium710.6
Triple Number Coastal/Long Distance High655.1
Triple Number Windward/Leeward Low1108.2
Triple Number Windward/Leeward Medium855.4
Triple Number Windward/Leeward High784.9
Predominantly Upwind779.4
Predominantly Downwind708.4
Predominantly Reaching689.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6877
Triple Number Coastal/Long Distance Medium0.8444
Triple Number Coastal/Long Distance High0.9159
Triple Number Windward/Leeward Low0.5414
Triple Number Windward/Leeward Medium0.7014
Triple Number Windward/Leeward High0.7644
Coastal/Long Distance0.7774
Predominantly Upwind0.7699
Predominantly Downwind0.8470
For information
General Purpose Handicap (GPH)791.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8394
Distanseseilas Trippeltall svak vind0.6877
Distanseseilas Trippeltall mellomvind0.8444
Distanseseilas Trippeltall sterk vind0.9159
Pølsebane Trippeltall svak vind0.5414
Pølsebane Trippeltall mellomvind0.7014
Pølsebane Trippeltall sterk vind0.7644
Motvind Singeltall0.7699
Medvind Singeltall0.8470
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Coastal/Long Distance771.80.7774
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind779.40.7699
Predominantly Downwind708.40.8470
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore749.30.8008
Cape Doctor Coastal622.20.9644
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6877
Triple Number Coastal/Long Distance Medium0.8444
Triple Number Coastal/Long Distance High0.9159
Triple Number Windward/Leeward Low0.5414
Triple Number Windward/Leeward Medium0.7014
Triple Number Windward/Leeward High0.7644
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6877
Triple Number Coastal/Long Distance Medium0.8444
Triple Number Coastal/Long Distance High0.9159
Triple Number Windward/Leeward Low0.5414
Triple Number Windward/Leeward Medium0.7014
Triple Number Windward/Leeward High0.7644
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Predominantly Upwind779.40.7699
Predominantly Downwind708.40.8470
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance771.80.7774
Triple Number Coastal/Long Distance Low872.50.6877
Triple Number Coastal/Long Distance Medium710.60.8444
Triple Number Coastal/Long Distance High655.10.9159
Triple Number Windward/Leeward Low1108.20.5414
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1790.11216.9941.3808.4740.3700.7665.5603.2578.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low872.50.6877
Triple Number AP Medium710.60.8443
Triple Number AP High655.10.9159
Triple Number Windward/Leeward Low1156.00.5190
Triple Number Windward/Leeward Medium855.40.7014
Triple Number Windward/Leeward High784.90.7644
Single Number Predominant Upwind807.20.7433
Single Number Predominant Reaching705.40.8506
Single Number Predominant Downwind735.70.8155
Predominant Upwind - Low1040.40.5767
Predominant Upwind - Low/Med828.80.7239
Predominant Upwind - Medium761.10.7883
Predominant Upwind - Med/High733.60.8179
Predominant Upwind - High724.90.8277
Predominant Downwind Low1041.30.5762
Predominant Downwind Low/Med789.90.7596
Predominant Downwind Medium689.00.8708
Predominant Downwind Med/High621.70.9650
Predominant Downwind High568.21.0560
Predominant Reaching Low928.10.6465
Predominant Reaching Low/Med738.30.8126
Predominant Reaching Medium670.10.8954
Predominant Reaching Med/High623.90.9617
Predominant Reaching High589.71.0174
SA/DSPL Upwind25.65SA/DSPL Downwind44.94
Scoring OptionTODTOT
5-Band Windward/Leeward Low1283.60.4675
5-Band Windward/Leeward Low/Med965.20.6217
5-Band Windward/Leeward Medium845.00.7100
5-Band Windward/Leeward Med/High791.50.7581
5-Band Windward/Leeward High766.80.7825
Windward/Leeward 60-40 Low1289.10.4654
Windward/Leeward 60-40 Low/Med980.20.6121
Windward/Leeward 60-40 Medium869.20.6903
Windward/Leeward 60-40 Med/High825.40.7269
Windward/Leeward 60-40 High811.20.7396
5-Band AP Low953.40.6293
5-Band AP Low/Med780.60.7686
5-Band AP Medium703.70.8527
5-Band AP Med/High662.00.9064
5-Band AP High636.60.9425
5-Band SF Bay Tour - Low1113.80.5387
5-Band SF Bay Tour - Low/Med929.20.6457
5-Band SF Bay Tour - Medium824.00.7281
5-Band SF Bay Tour - Med/High776.20.7730
5-Band SF Bay Tour - High752.30.7975
Chicago-Mac Upwind0.7271
Chicago-Mac All Purpose0.7595
Chicago-Mac Downwind0.7892
Bayview-Mac Cove Island0.5751
Bayview-Mac Shore0.5794
Harvest Moon Regatta620.90.9663
Double HandedClub Certificate2025
FansLAT 441
Latvijas Jūras
burāšanas asociācija
Grecinieku street 11A-5, Riga
Riga LV-1050 Latvia
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassNevaMeasurement01/06/2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA6.435Max. Beam2.484Draft1.437Displacement946Wetted area8.62IMS L5.408LSM05.127Acc. length6.435Sink (kg/mm) 6.34
VCGD0.078VCGM0.089RM Rated (kg·m) 15.6Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight145
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P8.418IG6.645ISP7.040MDT10.081MDL10.081MDT2MDL2TL0.000MWGO
E3.041J2.221BAS0.790FSD0.000SFJ0.105SPL2.260WPLTPS0.000BD0.130MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered15.5Flotation Date11/06/2023
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
FansLAT 441
Latvijas Jūras
burāšanas asociācija
Grecinieku street 11A-5, Riga
Riga LV-1050 Latvia
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.130.551.031.812.4614.4625/05/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.070.400.761.542.363.196.51NoNo 10.2401/05/202400.050.320.621.271.962.646.43NoNo 8.3524/05/2025
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment07.007.007.005.024.6328.8325/05/202307.117.117.114.254.2825.2224/05/2025