Club Certificate2025
ALFETALTU 420
Lithuanian Yachting Union
A.Goštauto g. 40 A
LT-03163, Vilnius
Lithuania
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 Angles43.1°43.1°40.9°39.1°38.7°38.9°39.5°40.4°43.1°
Beat VMG2.443.364.074.504.624.674.694.664.48
52°3.825.115.996.456.596.666.726.766.69
60°4.085.376.196.636.826.916.997.077.05
75°4.245.546.336.787.147.337.477.657.72
90°4.365.746.576.957.217.637.938.288.51
110°4.435.836.747.337.768.138.468.999.56
120°4.295.716.677.357.988.458.999.9610.74
135°3.685.126.256.957.628.369.2711.4213.56
150°3.054.325.426.306.937.488.1010.5914.17
Run VMG2.643.754.705.456.026.487.029.1712.27
Gybe Angles143.5°143.5°147.8°150.3°153.0°151.0°146.5°141.6°147.2°
APH ToD:573.9CDL: 7.633APH ToT: 1.0456CertNo:LT420
BOAT
ClassRS 280DesignerUAB PlastolitasBuilderUAB PlastolitasAge date04/2002Series date06/1998Offset fileRS280.OFFData fileAlfeta LTU420
HULL
Length Overall8.300 mMaximum Beam2.656 mDraft1.713 mDisplacement1,735 kgDLR4.2405IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight425 kg(declared)Minimum weight295 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail25.8026.68Headsail Luffed18.5818.58Headsail FlyingSymmetricAsymmetric79.4079.40 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail6.85Storm Jib5.58Heavy Weather Jib15.05
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
ALFETALTU 420
Lithuanian Yachting Union
A.Goštauto g. 40 A
LT-03163, Vilnius
Lithuania
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 VMG1477.31071.9884.3799.1778.4771.4767.7772.7804.1
52°943.6704.8601.3558.1546.0540.2536.1532.9538.2
60°882.8670.2581.6542.7528.2520.9515.2509.1510.8
75°849.4649.8569.0531.1504.4491.1481.9470.6466.5
90°825.1627.6547.6517.8499.6471.7454.2434.6423.3
110°812.7617.2534.4491.4464.1442.9425.4400.3376.4
120°838.9630.5539.8489.9451.1425.8400.4361.6335.1
135°979.2703.2576.4517.8472.7430.7388.5315.2265.5
150°1180.8832.5663.7571.8519.4481.2444.3339.9254.0
Run VMG1363.9961.2766.4660.1597.7555.3513.0392.5293.3
Selected Courses
Windward / Leeward1420.11016.6825.4729.6688.0663.4640.4582.6548.7
All purpose1070.0783.5652.9590.4559.4537.6518.6481.8460.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward711.50.8432
All purpose573.91.0456
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7185
Downwind "popa"0.9446
70% up, 30% down "Ilhabela"0.7741
30% up, 70% down "Ilhabela-inverso"0.8631
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Predominantly Upwind631.70.9499
Predominantly Downwind569.11.0543
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low718.20.8354
Triple Number AP Medium572.21.0487
Triple Number AP High509.61.1775
Triple Number Windward/Leeward Low961.40.6241
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Single Number Predominant Upwind654.60.9166
Single Number Predominant Reaching561.51.0685
Single Number Predominant Downwind588.11.0202
Predominant Upwind - Low872.60.6876
Predominant Upwind - Low/Med680.30.8820
Predominant Upwind - Medium615.10.9755
Predominant Upwind - Med/High581.21.0324
Predominant Upwind - High562.61.0664
Predominant Downwind Low845.90.7093
Predominant Downwind Low/Med640.40.9370
Predominant Downwind Medium554.31.0824
Predominant Downwind Med/High484.21.2390
Predominant Downwind High421.71.4228
Predominant Reaching Low761.10.7883
Predominant Reaching Low/Med597.11.0048
Predominant Reaching Medium533.01.1257
Predominant Reaching Med/High482.01.2447
Predominant Reaching High445.11.3479
SA/DSPL Upwind30.68SA/DSPL Downwind72.72
Scoring OptionTODTOT
5-Band Windward/Leeward Low1069.80.5609
5-Band Windward/Leeward Low/Med799.50.7505
5-Band Windward/Leeward Medium698.20.8594
5-Band Windward/Leeward Med/High638.50.9398
5-Band Windward/Leeward High586.71.0226
Windward/Leeward 60-40 Low1081.10.5550
Windward/Leeward 60-40 Low/Med812.80.7382
Windward/Leeward 60-40 Medium716.20.8377
Windward/Leeward 60-40 Med/High664.80.9026
Windward/Leeward 60-40 High624.80.9602
5-Band AP Low783.90.7654
5-Band AP Low/Med636.30.9429
5-Band AP Medium565.21.0615
5-Band AP Med/High519.01.1560
5-Band AP High484.51.2383
5-Band SF Bay Tour - Low926.60.6475
5-Band SF Bay Tour - Low/Med765.90.7834
5-Band SF Bay Tour - Medium672.70.8919
5-Band SF Bay Tour - Med/High618.30.9703
5-Band SF Bay Tour - High575.01.0435
Chicago-Mac Upwind0.8927
Chicago-Mac All Purpose0.9378
Chicago-Mac Downwind0.9808
Bayview-Mac Cove Island0.6976
Bayview-Mac Shore0.7021
Harvest Moon Regatta485.01.2371
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance623.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating623.90.9617
FinRating, kevyt tuuli1047.10.9551
FinRating, kova tuuli485.11.0308
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9617
Triple Number Coastal/Long Distance Low0.8354
Triple Number Coastal/Long Distance Medium1.0488
Triple Number Coastal/Long Distance High1.1775
Triple Number Windward/Leeward Low0.6515
Triple Number Windward/Leeward Medium0.8485
Triple Number Windward/Leeward High0.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
For information
General Purpose Handicap (GPH)639.9
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low718.2
Triple Number Coastal/Long Distance Medium572.1
Triple Number Coastal/Long Distance High509.6
Triple Number Windward/Leeward Low921.0
Triple Number Windward/Leeward Medium707.1
Triple Number Windward/Leeward High624.5
Predominantly Upwind631.7
Predominantly Downwind569.1
Predominantly Reaching549.3
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8354
Triple Number Coastal/Long Distance Medium1.0488
Triple Number Coastal/Long Distance High1.1775
Triple Number Windward/Leeward Low0.6515
Triple Number Windward/Leeward Medium0.8485
Triple Number Windward/Leeward High0.9608
Coastal/Long Distance0.9617
Predominantly Upwind0.9499
Predominantly Downwind1.0543
For information
General Purpose Handicap (GPH)639.9
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0456
Distanseseilas Trippeltall svak vind0.8354
Distanseseilas Trippeltall mellomvind1.0488
Distanseseilas Trippeltall sterk vind1.1775
Pølsebane Trippeltall svak vind0.6515
Pølsebane Trippeltall mellomvind0.8485
Pølsebane Trippeltall sterk vind0.9608
Motvind Singeltall0.9499
Medvind Singeltall1.0543
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Coastal/Long Distance623.90.9617
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind631.70.9499
Predominantly Downwind569.11.0543
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore558.91.0736
Cape Doctor Coastal467.01.2849
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8354
Triple Number Coastal/Long Distance Medium1.0488
Triple Number Coastal/Long Distance High1.1775
Triple Number Windward/Leeward Low0.6515
Triple Number Windward/Leeward Medium0.8485
Triple Number Windward/Leeward High0.9608
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8354
Triple Number Coastal/Long Distance Medium1.0488
Triple Number Coastal/Long Distance High1.1775
Triple Number Windward/Leeward Low0.6515
Triple Number Windward/Leeward Medium0.8485
Triple Number Windward/Leeward High0.9608
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Predominantly Upwind631.70.9499
Predominantly Downwind569.11.0543
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance623.90.9617
Triple Number Coastal/Long Distance Low718.20.8354
Triple Number Coastal/Long Distance Medium572.11.0488
Triple Number Coastal/Long Distance High509.61.1775
Triple Number Windward/Leeward Low921.00.6515
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1495.41011.0776.9660.5597.9559.1522.7455.1431.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low718.20.8354
Triple Number AP Medium572.21.0487
Triple Number AP High509.61.1775
Triple Number Windward/Leeward Low961.40.6241
Triple Number Windward/Leeward Medium707.10.8485
Triple Number Windward/Leeward High624.50.9608
Single Number Predominant Upwind654.60.9166
Single Number Predominant Reaching561.51.0685
Single Number Predominant Downwind588.11.0202
Predominant Upwind - Low872.60.6876
Predominant Upwind - Low/Med680.30.8820
Predominant Upwind - Medium615.10.9755
Predominant Upwind - Med/High581.21.0324
Predominant Upwind - High562.61.0664
Predominant Downwind Low845.90.7093
Predominant Downwind Low/Med640.40.9370
Predominant Downwind Medium554.31.0824
Predominant Downwind Med/High484.21.2390
Predominant Downwind High421.71.4228
Predominant Reaching Low761.10.7883
Predominant Reaching Low/Med597.11.0048
Predominant Reaching Medium533.01.1257
Predominant Reaching Med/High482.01.2447
Predominant Reaching High445.11.3479
SA/DSPL Upwind30.68SA/DSPL Downwind72.72
Scoring OptionTODTOT
5-Band Windward/Leeward Low1069.80.5609
5-Band Windward/Leeward Low/Med799.50.7505
5-Band Windward/Leeward Medium698.20.8594
5-Band Windward/Leeward Med/High638.50.9398
5-Band Windward/Leeward High586.71.0226
Windward/Leeward 60-40 Low1081.10.5550
Windward/Leeward 60-40 Low/Med812.80.7382
Windward/Leeward 60-40 Medium716.20.8377
Windward/Leeward 60-40 Med/High664.80.9026
Windward/Leeward 60-40 High624.80.9602
5-Band AP Low783.90.7654
5-Band AP Low/Med636.30.9429
5-Band AP Medium565.21.0615
5-Band AP Med/High519.01.1560
5-Band AP High484.51.2383
5-Band SF Bay Tour - Low926.60.6475
5-Band SF Bay Tour - Low/Med765.90.7834
5-Band SF Bay Tour - Medium672.70.8919
5-Band SF Bay Tour - Med/High618.30.9703
5-Band SF Bay Tour - High575.01.0435
Chicago-Mac Upwind0.8927
Chicago-Mac All Purpose0.9378
Chicago-Mac Downwind0.9808
Bayview-Mac Cove Island0.6976
Bayview-Mac Shore0.7021
Harvest Moon Regatta485.01.2371
Club Certificate2025
ALFETALTU 420
Lithuanian Yachting Union
A.Goštauto g. 40 A
LT-03163, Vilnius
Lithuania
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassRS 280Measurement19/07/2012HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.300Max. Beam2.656Draft1.713Displacement1,735Wetted area15.17IMS L7.906LSM07.423Acc. length8.282Sink (kg/mm) 11.60
VCGD-0.007VCGM0.013RM Rated (kg·m) 44.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight450Declared crew weight425
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P10.570IG10.520ISP11.930MDT10.105MDL10.159MDT20.105MDL20.120TL1.122MW0.159GO0.169
E3.700J3.000BAS1.300FSD0.024SFJ0.000SPL0.000WPLTPS4.680BD0.130MWT80.50MCG4.480
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date02/08/2024
W135.7W235.7W335.7W435.7LCFD4.900
PD1226.9PD2221.5PD3224.1PD4225.4
WD3.445PLM9000.00GSA1.0RSA1.0RM43.1
BALLAST
TANKS
INVENTORY
IdDescriptionWeight SailingLCGVCGGAIdDescriptionWeight SailingLCGVCGGAB/N3.20   
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGB/NBattery103.20Total deductible0
Club Certificate2025
ALFETALTU 420
Lithuanian Yachting Union
A.Goštauto g. 40 A
LT-03163, Vilnius
Lithuania
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentODM0.170.991.702.703.4025.80STANDARTAS
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentODJ0.100.530.971.842.703.5710.15YesNo 18.58Standartas
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentODG214.1912.0313.117.197.5895%79.40ODG112.0510.2011.135.807.2580%56.46