Club Certificate2025
YAKITA-513MT
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 Angles40.4°40.4°37.6°36.0°35.7°35.9°36.2°36.9°38.6°
Beat VMG2.623.474.024.304.394.424.434.454.35
52°4.015.075.605.926.076.166.236.316.27
60°4.185.235.716.076.296.416.506.616.63
75°4.265.365.876.266.576.806.977.227.38
90°4.335.445.996.496.907.147.468.108.64
110°4.275.476.166.767.217.648.469.8010.98
120°4.195.396.096.727.458.168.8211.0012.49
135°3.835.015.766.387.007.869.3912.1913.90
150°3.124.325.245.836.426.997.7211.5314.88
Run VMG2.713.744.555.165.696.196.699.9912.89
Gybe Angles142.2°142.2°152.3°160.6°169.4°172.7°148.5°143.5°148.3°
APH ToD:606.7CDL: 6.157APH ToT: 0.9890CertNo:25/1
BOAT
ClassTwister 650DesignerCossuttiBuilderCrack BoatAge date12/2004Series date12/2004Offset file650POGO2.OFFData fileI513MT
HULL
Length Overall6.090 mMaximum Beam3.000 mDraft1.600 mDisplacement1,000 kgDLR6.4475IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight200 kg(declared)Minimum weight130 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail24.3025.14Headsail Luffed14.7414.74Headsail Flying28.2531.09SymmetricAsymmetric67.8967.89 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.07Storm Jib5.09Heavy Weather Jib13.72
SAIL LIMITS
Headsails5Spinnakers4
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
YAKITA-513MT
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 VMG1374.71037.0894.5836.3820.0814.1812.7808.6827.0
52°898.5709.4642.4608.6593.3584.3578.1570.5574.0
60°860.5687.8630.0592.6572.6561.7553.5544.3543.3
75°844.6672.2613.1575.5547.9529.3516.7498.6487.8
90°830.8661.2600.9554.8522.1504.4482.8444.6416.5
110°842.2658.0584.6532.6499.3471.1425.6367.5327.8
120°859.0668.3591.6535.7483.1441.1408.4327.4288.3
135°940.1718.8624.6564.5514.0457.8383.3295.3259.0
150°1153.2833.2686.9617.4560.6515.3466.2312.1241.9
Run VMG1326.8962.1791.4698.3632.5581.8538.3360.4279.4
Selected Courses
Windward / Leeward1349.9999.5842.9767.3726.3698.0675.5584.5553.2
All purpose1034.3789.6687.2631.8597.0571.4544.6485.1461.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward742.00.8086
All purpose606.70.9890
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6973
Downwind "popa"0.9201
70% up, 30% down "Ilhabela"0.7519
30% up, 70% down "Ilhabela-inverso"0.8396
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Predominantly Upwind668.50.8976
Predominantly Downwind601.50.9975
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low738.40.8126
Triple Number AP Medium609.80.9839
Triple Number AP High529.01.1343
Triple Number Windward/Leeward Low956.60.6272
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Single Number Predominant Upwind683.20.8783
Single Number Predominant Reaching589.01.0186
Single Number Predominant Downwind612.40.9798
Predominant Upwind - Low865.70.6931
Predominant Upwind - Low/Med712.30.8423
Predominant Upwind - Medium654.40.9169
Predominant Upwind - Med/High614.50.9764
Predominant Upwind - High585.21.0253
Predominant Downwind Low850.10.7058
Predominant Downwind Low/Med675.30.8886
Predominant Downwind Medium589.91.0172
Predominant Downwind Med/High502.11.1951
Predominant Downwind High419.11.4318
Predominant Reaching Low772.70.7765
Predominant Reaching Low/Med634.90.9451
Predominant Reaching Medium568.71.0550
Predominant Reaching Med/High504.71.1889
Predominant Reaching High453.01.3245
SA/DSPL Upwind39.04SA/DSPL Downwind92.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1048.20.5724
5-Band Windward/Leeward Low/Med822.10.7298
5-Band Windward/Leeward Medium733.80.8177
5-Band Windward/Leeward Med/High668.00.8982
5-Band Windward/Leeward High594.81.0087
Windward/Leeward 60-40 Low1055.70.5683
Windward/Leeward 60-40 Low/Med834.50.7190
Windward/Leeward 60-40 Medium752.50.7974
Windward/Leeward 60-40 Med/High696.90.8609
Windward/Leeward 60-40 High638.40.9399
5-Band AP Low795.10.7547
5-Band AP Low/Med669.40.8963
5-Band AP Medium601.70.9972
5-Band AP Med/High543.51.1040
5-Band AP High491.21.2214
5-Band SF Bay Tour - Low920.40.6519
5-Band SF Bay Tour - Low/Med790.80.7587
5-Band SF Bay Tour - Medium709.30.8459
5-Band SF Bay Tour - Med/High646.60.9280
5-Band SF Bay Tour - High583.81.0277
Chicago-Mac Upwind0.8559
Chicago-Mac All Purpose0.8987
Chicago-Mac Downwind0.9395
Bayview-Mac Cove Island0.6961
Bayview-Mac Shore0.7003
Harvest Moon Regatta507.21.1830
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance655.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating655.50.9153
FinRating, kevyt tuuli1027.90.9729
FinRating, kova tuuli491.81.0167
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9153
Triple Number Coastal/Long Distance Low0.8126
Triple Number Coastal/Long Distance Medium0.9840
Triple Number Coastal/Long Distance High1.1343
Triple Number Windward/Leeward Low0.6513
Triple Number Windward/Leeward Medium0.8080
Triple Number Windward/Leeward High0.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
For information
General Purpose Handicap (GPH)671.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low738.4
Triple Number Coastal/Long Distance Medium609.8
Triple Number Coastal/Long Distance High529.0
Triple Number Windward/Leeward Low921.2
Triple Number Windward/Leeward Medium742.6
Triple Number Windward/Leeward High647.0
Predominantly Upwind668.5
Predominantly Downwind601.5
Predominantly Reaching582.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8126
Triple Number Coastal/Long Distance Medium0.9840
Triple Number Coastal/Long Distance High1.1343
Triple Number Windward/Leeward Low0.6513
Triple Number Windward/Leeward Medium0.8080
Triple Number Windward/Leeward High0.9274
Coastal/Long Distance0.9153
Predominantly Upwind0.8976
Predominantly Downwind0.9975
For information
General Purpose Handicap (GPH)671.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9890
Distanseseilas Trippeltall svak vind0.8126
Distanseseilas Trippeltall mellomvind0.9840
Distanseseilas Trippeltall sterk vind1.1343
Pølsebane Trippeltall svak vind0.6513
Pølsebane Trippeltall mellomvind0.8080
Pølsebane Trippeltall sterk vind0.9274
Motvind Singeltall0.8976
Medvind Singeltall0.9975
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Coastal/Long Distance655.50.9153
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind668.50.8976
Predominantly Downwind601.50.9975
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore562.61.0665
Cape Doctor Coastal468.21.2814
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8126
Triple Number Coastal/Long Distance Medium0.9840
Triple Number Coastal/Long Distance High1.1343
Triple Number Windward/Leeward Low0.6513
Triple Number Windward/Leeward Medium0.8080
Triple Number Windward/Leeward High0.9274
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8126
Triple Number Coastal/Long Distance Medium0.9840
Triple Number Coastal/Long Distance High1.1343
Triple Number Windward/Leeward Low0.6513
Triple Number Windward/Leeward Medium0.8080
Triple Number Windward/Leeward High0.9274
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Predominantly Upwind668.50.8976
Predominantly Downwind601.50.9975
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance655.50.9153
Triple Number Coastal/Long Distance Low738.40.8126
Triple Number Coastal/Long Distance Medium609.80.9840
Triple Number Coastal/Long Distance High529.01.1343
Triple Number Windward/Leeward Low921.20.6513
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1409.4995.8799.8700.9635.5592.1551.1455.0426.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low738.40.8126
Triple Number AP Medium609.80.9839
Triple Number AP High529.01.1343
Triple Number Windward/Leeward Low956.60.6272
Triple Number Windward/Leeward Medium742.60.8080
Triple Number Windward/Leeward High647.00.9274
Single Number Predominant Upwind683.20.8783
Single Number Predominant Reaching589.01.0186
Single Number Predominant Downwind612.40.9798
Predominant Upwind - Low865.70.6931
Predominant Upwind - Low/Med712.30.8423
Predominant Upwind - Medium654.40.9169
Predominant Upwind - Med/High614.50.9764
Predominant Upwind - High585.21.0253
Predominant Downwind Low850.10.7058
Predominant Downwind Low/Med675.30.8886
Predominant Downwind Medium589.91.0172
Predominant Downwind Med/High502.11.1951
Predominant Downwind High419.11.4318
Predominant Reaching Low772.70.7765
Predominant Reaching Low/Med634.90.9451
Predominant Reaching Medium568.71.0550
Predominant Reaching Med/High504.71.1889
Predominant Reaching High453.01.3245
SA/DSPL Upwind39.04SA/DSPL Downwind92.18
Scoring OptionTODTOT
5-Band Windward/Leeward Low1048.20.5724
5-Band Windward/Leeward Low/Med822.10.7298
5-Band Windward/Leeward Medium733.80.8177
5-Band Windward/Leeward Med/High668.00.8982
5-Band Windward/Leeward High594.81.0087
Windward/Leeward 60-40 Low1055.70.5683
Windward/Leeward 60-40 Low/Med834.50.7190
Windward/Leeward 60-40 Medium752.50.7974
Windward/Leeward 60-40 Med/High696.90.8609
Windward/Leeward 60-40 High638.40.9399
5-Band AP Low795.10.7547
5-Band AP Low/Med669.40.8963
5-Band AP Medium601.70.9972
5-Band AP Med/High543.51.1040
5-Band AP High491.21.2214
5-Band SF Bay Tour - Low920.40.6519
5-Band SF Bay Tour - Low/Med790.80.7587
5-Band SF Bay Tour - Medium709.30.8459
5-Band SF Bay Tour - Med/High646.60.9280
5-Band SF Bay Tour - High583.81.0277
Chicago-Mac Upwind0.8559
Chicago-Mac All Purpose0.8987
Chicago-Mac Downwind0.9395
Bayview-Mac Cove Island0.6961
Bayview-Mac Shore0.7003
Harvest Moon Regatta507.21.1830
Club Certificate2025
YAKITA-513MT
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassTwister 650Measurement01/04/1996HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA6.090Max. Beam3.000Draft1.600Displacement1,000Wetted area9.92IMS L5.682LSM05.373Acc. length6.090Sink (kg/mm) 8.86
VCGD-0.280VCGM-0.281RM Rated (kg·m) 51.0Limit of positive stability(°) N/AStability IndexN/ADefault crew weight284Declared crew weight200
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritYesNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1Checkstays1Spreaders2Rotating mastNo
P9.500IG10.000ISP10.010MDT10.080MDL10.120MDT20.070MDL20.070TL1.500MW0.120GO0.140
E3.650J2.500BAS0.500FSDNo FoilSFJ0.050SPLWPLTPS5.000BD0.100MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.280Flotation Date01/01/2013
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
YAKITA-513MT
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA1.431.452.032.673.1324.3020/04/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentB0.241.001.763.284.054.819.90NoYes028.25A0.050.450.851.562.222.829.79YesNo 14.7420/04/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA12.109.8010.957.357.8094%67.8920/04/2023