Club 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 Angles42.3°42.3°40.4°38.4°36.5°36.2°36.3°37.4°39.7°
Beat VMG2.082.833.383.774.004.094.124.093.96
52°3.194.254.945.275.465.595.645.675.65
60°3.394.445.075.375.565.715.805.865.86
75°3.524.565.165.465.685.876.036.196.27
90°3.594.695.355.675.926.066.176.556.77
110°3.604.695.345.706.046.406.717.167.55
120°3.364.495.245.625.966.366.837.718.39
135°2.863.984.885.435.756.106.527.739.63
150°2.413.454.365.085.515.816.157.038.49
Run VMG2.082.993.804.495.065.445.736.377.35
Gybe Angles148.9°148.9°154.1°161.3°169.1°178.1°178.6°176.2°149.1°
APH ToD:703.3CDL: 5.538APH ToT: 0.8531CertNo:014/25
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 weight300 kg(declared)Minimum weight170 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.
Club 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 VMG1731.31273.21063.7955.4899.2879.3873.7880.4909.3
52°1129.3847.9729.5683.5659.5644.5638.6634.5637.7
60°1061.9810.7709.8669.9647.3630.0621.2614.4614.3
75°1023.5789.0697.7658.8633.7613.2596.9581.5574.4
90°1001.5766.8673.5634.8608.4594.1583.4549.5532.1
110°1001.1767.6674.4631.9596.0562.6536.2502.7477.1
120°1070.1801.1687.2640.9604.0565.8527.1467.0429.1
135°1260.4903.7738.1663.4625.6589.9552.1465.6373.7
150°1493.31043.6824.8709.0653.6619.1585.3512.0424.0
Run VMG1731.21205.1948.0802.6711.0661.5628.1565.1489.6
Selected Courses
Windward / Leeward1729.21239.11005.8879.0805.1770.4750.9722.7699.4
All purpose1306.7960.3803.4726.2682.2655.9636.3604.2578.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward845.20.7099
All purpose703.30.8531
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6154
Downwind "popa"0.7607
70% up, 30% down "Ilhabela"0.6528
30% up, 70% down "Ilhabela-inverso"0.7104
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Predominantly Upwind760.50.7889
Predominantly Downwind708.10.8474
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low881.80.6804
Triple Number AP Medium700.50.8566
Triple Number AP High629.20.9536
Triple Number Windward/Leeward Low1170.70.5125
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Single Number Predominant Upwind788.70.7607
Single Number Predominant Reaching698.90.8585
Single Number Predominant Downwind735.80.8155
Predominant Upwind - Low1056.20.5681
Predominant Upwind - Low/Med825.90.7265
Predominant Upwind - Medium739.20.8116
Predominant Upwind - Med/High696.90.8610
Predominant Upwind - High678.10.8848
Predominant Downwind Low1055.60.5684
Predominant Downwind Low/Med793.90.7557
Predominant Downwind Medium686.30.8742
Predominant Downwind Med/High616.50.9732
Predominant Downwind High561.61.0683
Predominant Reaching Low939.80.6384
Predominant Reaching Low/Med738.00.8130
Predominant Reaching Medium660.90.9078
Predominant Reaching Med/High610.90.9821
Predominant Reaching High570.21.0522
SA/DSPL Upwind25.65SA/DSPL Downwind44.94
Scoring OptionTODTOT
5-Band Windward/Leeward Low1303.80.4602
5-Band Windward/Leeward Low/Med965.80.6212
5-Band Windward/Leeward Medium823.90.7282
5-Band Windward/Leeward Med/High753.90.7958
5-Band Windward/Leeward High723.60.8292
Windward/Leeward 60-40 Low1310.10.4580
Windward/Leeward 60-40 Low/Med979.10.6128
Windward/Leeward 60-40 Medium842.50.7122
Windward/Leeward 60-40 Med/High778.70.7705
Windward/Leeward 60-40 High755.70.7940
5-Band AP Low966.80.6206
5-Band AP Low/Med781.40.7678
5-Band AP Medium691.40.8678
5-Band AP Med/High638.10.9403
5-Band AP High605.40.9911
5-Band SF Bay Tour - Low1130.00.5310
5-Band SF Bay Tour - Low/Med929.50.6455
5-Band SF Bay Tour - Medium802.90.7473
5-Band SF Bay Tour - Med/High738.50.8125
5-Band SF Bay Tour - High707.10.8486
Chicago-Mac Upwind0.7396
Chicago-Mac All Purpose0.7660
Chicago-Mac Downwind0.7878
Bayview-Mac Cove Island0.5715
Bayview-Mac Shore0.5758
Harvest Moon Regatta615.40.9750
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance759.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating759.50.7900
FinRating, kevyt tuuli1279.50.7815
FinRating, kova tuuli607.30.8234
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7900
Triple Number Coastal/Long Distance Low0.6804
Triple Number Coastal/Long Distance Medium0.8567
Triple Number Coastal/Long Distance High0.9536
Triple Number Windward/Leeward Low0.5345
Triple Number Windward/Leeward Medium0.7162
Triple Number Windward/Leeward High0.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
For information
General Purpose Handicap (GPH)784.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low881.8
Triple Number Coastal/Long Distance Medium700.4
Triple Number Coastal/Long Distance High629.2
Triple Number Windward/Leeward Low1122.5
Triple Number Windward/Leeward Medium837.8
Triple Number Windward/Leeward High745.2
Predominantly Upwind760.5
Predominantly Downwind708.1
Predominantly Reaching685.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6804
Triple Number Coastal/Long Distance Medium0.8567
Triple Number Coastal/Long Distance High0.9536
Triple Number Windward/Leeward Low0.5345
Triple Number Windward/Leeward Medium0.7162
Triple Number Windward/Leeward High0.8051
Coastal/Long Distance0.7900
Predominantly Upwind0.7889
Predominantly Downwind0.8474
For information
General Purpose Handicap (GPH)784.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8531
Distanseseilas Trippeltall svak vind0.6804
Distanseseilas Trippeltall mellomvind0.8567
Distanseseilas Trippeltall sterk vind0.9536
Pølsebane Trippeltall svak vind0.5345
Pølsebane Trippeltall mellomvind0.7162
Pølsebane Trippeltall sterk vind0.8051
Motvind Singeltall0.7889
Medvind Singeltall0.8474
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Coastal/Long Distance759.50.7900
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind760.50.7889
Predominantly Downwind708.10.8474
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore706.40.8493
Cape Doctor Coastal586.51.0231
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6804
Triple Number Coastal/Long Distance Medium0.8567
Triple Number Coastal/Long Distance High0.9536
Triple Number Windward/Leeward Low0.5345
Triple Number Windward/Leeward Medium0.7162
Triple Number Windward/Leeward High0.8051
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6804
Triple Number Coastal/Long Distance Medium0.8567
Triple Number Coastal/Long Distance High0.9536
Triple Number Windward/Leeward Low0.5345
Triple Number Windward/Leeward Medium0.7162
Triple Number Windward/Leeward High0.8051
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Predominantly Upwind760.50.7889
Predominantly Downwind708.10.8474
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance759.50.7900
Triple Number Coastal/Long Distance Low881.80.6804
Triple Number Coastal/Long Distance Medium700.40.8567
Triple Number Coastal/Long Distance High629.20.9536
Triple Number Windward/Leeward Low1122.50.5345
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1827.61235.7949.4804.7723.0678.9642.5576.0549.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low881.80.6804
Triple Number AP Medium700.50.8566
Triple Number AP High629.20.9536
Triple Number Windward/Leeward Low1170.70.5125
Triple Number Windward/Leeward Medium837.80.7162
Triple Number Windward/Leeward High745.20.8051
Single Number Predominant Upwind788.70.7607
Single Number Predominant Reaching698.90.8585
Single Number Predominant Downwind735.80.8155
Predominant Upwind - Low1056.20.5681
Predominant Upwind - Low/Med825.90.7265
Predominant Upwind - Medium739.20.8116
Predominant Upwind - Med/High696.90.8610
Predominant Upwind - High678.10.8848
Predominant Downwind Low1055.60.5684
Predominant Downwind Low/Med793.90.7557
Predominant Downwind Medium686.30.8742
Predominant Downwind Med/High616.50.9732
Predominant Downwind High561.61.0683
Predominant Reaching Low939.80.6384
Predominant Reaching Low/Med738.00.8130
Predominant Reaching Medium660.90.9078
Predominant Reaching Med/High610.90.9821
Predominant Reaching High570.21.0522
SA/DSPL Upwind25.65SA/DSPL Downwind44.94
Scoring OptionTODTOT
5-Band Windward/Leeward Low1303.80.4602
5-Band Windward/Leeward Low/Med965.80.6212
5-Band Windward/Leeward Medium823.90.7282
5-Band Windward/Leeward Med/High753.90.7958
5-Band Windward/Leeward High723.60.8292
Windward/Leeward 60-40 Low1310.10.4580
Windward/Leeward 60-40 Low/Med979.10.6128
Windward/Leeward 60-40 Medium842.50.7122
Windward/Leeward 60-40 Med/High778.70.7705
Windward/Leeward 60-40 High755.70.7940
5-Band AP Low966.80.6206
5-Band AP Low/Med781.40.7678
5-Band AP Medium691.40.8678
5-Band AP Med/High638.10.9403
5-Band AP High605.40.9911
5-Band SF Bay Tour - Low1130.00.5310
5-Band SF Bay Tour - Low/Med929.50.6455
5-Band SF Bay Tour - Medium802.90.7473
5-Band SF Bay Tour - Med/High738.50.8125
5-Band SF Bay Tour - High707.10.8486
Chicago-Mac Upwind0.7396
Chicago-Mac All Purpose0.7660
Chicago-Mac Downwind0.7878
Bayview-Mac Cove Island0.5715
Bayview-Mac Shore0.5758
Harvest Moon Regatta615.40.9750
Club 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 L5.559LSM05.127Acc. length6.435Sink (kg/mm) 6.34
VCGD0.078VCGM0.089RM Rated (kg·m) 15.6Limit of positive stability(°) N/AStability IndexN/ADefault crew weight266Declared crew weight300
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
Club 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