Club Certificate2026
L'AMANTE FRETTOLOSAITA-17181
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 Angles44.9°42.8°40.8°39.1°39.7°40.2°40.5°41.2°43.7°
Beat VMG2.273.233.904.184.234.254.264.254.06
52°3.534.905.716.046.166.236.306.356.20
60°3.775.155.906.326.516.636.736.836.74
75°3.945.316.066.697.097.347.547.787.86
90°4.215.676.286.747.518.048.398.939.25
110°4.185.696.657.377.948.478.9710.0910.98
120°3.995.566.617.648.419.069.6610.8312.15
135°3.565.056.087.098.359.5810.7012.6414.35
150°2.964.275.366.177.098.199.4412.9416.14
Run VMG2.563.704.645.356.147.098.1711.2014.06
Gybe Angles140.6°143.8°148.5°151.0°146.0°145.2°142.1°147.1°151.3°
APH ToD:583.6CDL: 6.259APH ToT: 1.0281CertNo:26/1
BOAT
ClassMayo 637DesignerBuaBuilderautocostruitaAge date11/2015Series date04/2015Offset fileMAYO-637.offData fileI17181
HULL
Length Overall6.370Maximum Beam2.468Draft1.760Displacement518DLR2.1890IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.357%RS Assessment0.000%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight300(declared)Minimum weight170 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail16.0116.73Headsail Luffed9.849.84Headsail FlyingSymmetricAsymmetric45.8745.87 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail3.95Storm Jib3.05Heavy Weather Jib8.23
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting Moment 12.2 Stability Index 94.7
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.
ORC Ref  03190004F8O Issued on 27/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
L'AMANTE FRETTOLOSAITA-17181
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 VMG1585.71114.8924.3862.1850.2847.8844.1846.8886.8
52°1020.2735.3630.7596.1584.6577.6571.5566.5580.4
60°955.0698.9609.8569.5553.3543.2535.1527.0534.3
75°913.1677.7593.8538.4507.8490.7477.3462.5457.8
90°856.1635.4573.3533.9479.1447.7428.8403.2389.3
110°861.4632.9541.3488.6453.5424.9401.3357.0328.0
120°902.5647.4544.9470.9428.1397.3372.9332.3296.4
135°1010.9713.1591.9507.8431.0375.8336.4284.7250.9
150°1216.1843.7671.3583.5507.6439.6381.4278.3223.0
Run VMG1404.2974.2775.1673.4586.1507.6440.4321.3256.1
Selected Courses
Windward / Leeward1495.01044.5849.7767.7718.2677.7642.3584.1571.4
All purpose1131.8805.3674.3611.1569.3538.7513.8475.7464.5
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward735.20.8162
All purpose583.61.0281
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6677
Downwind "popa"0.9818
70% up, 30% down "Ilhabela"0.7386
30% up, 70% down "Ilhabela-inverso"0.8604
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Predominantly Upwind659.40.9100
Predominantly Downwind561.51.0685
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP600.50.9992 Predom. Rc High431.81.3894 5B SF Bay L/M792.60.7570 TriNum AP Low739.80.8111 Predom. Dn Low869.60.6900 5B SF Bay Med697.80.8599 TriNum AP Med584.41.0267 Predom. Dn L/M651.90.9204 5B SF Bay M/H628.80.9542 TriNum AP High505.81.1863 Predom. Dn Med545.21.1006 5B SF Bay High585.71.0244 TriNum W/L Low993.70.6038 Predom. Dn M/H453.91.3219 5B AP Low813.20.7378 TriNum W/L Med735.60.8157 Predom. Dn High395.41.5175 5B AP L/M655.80.9149 TriNum W/L Hig629.30.9534 ChiMac Up Low811.90.7390 5B AP Med575.31.0430 Predom. Upwind684.10.8770 ChiMac Up Med741.20.8095 5B AP M/H516.31.1621 Predom. Reaching562.81.0661 ChiMac Up High657.00.9133 5B AP High480.41.2490 Predom. Downwind582.51.0301 ChiMac Off Low751.70.7982 5B W/L Low1108.40.5413 Predom. Up Low911.60.6582 ChiMac Off Med659.00.9105 5B W/L L/M830.10.7228 Predom. Up L/M711.10.8438 ChiMac Off High542.61.1057 5B W/L Med724.20.8285 Predom. Up Med643.00.9331 ChiMac AP Low777.90.7713 5B W/L M/H644.80.9305 Predom. Up M/H603.30.9944 ChiMac AP Med697.30.8605 5B W/L High591.91.0136 Predom. Up High585.71.0245 ChiMac AP High597.81.0036 W/L 60-40 Low1123.70.5339 Predom. Rc Low786.40.7630 BayMac Cove Island892.80.6721 W/L 60-40 L/M847.90.7076 Predom. Rc L/M612.20.9800 BayMac Shore886.50.6768 W/L 60-40 Med750.80.7991 Predom. Rc Med530.01.1320 Harvest Moon472.41.2702 W/L 60-40 M/H685.00.8759 Predom. Rc M/H466.31.2869 5B SF Bay Low940.40.6381 W/L 60-40 High644.20.9314      SA/DSPL Up40.19SA/DSPL Dn96.18
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance636.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating636.00.9433
FinRating, kevyt tuuli1088.40.9188
FinRating, kova tuuli480.21.0412
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9433
Triple Number Coastal/Long Distance Low0.8111
Triple Number Coastal/Long Distance Medium1.0268
Triple Number Coastal/Long Distance High1.1863
Triple Number Windward/Leeward Low0.6335
Triple Number Windward/Leeward Medium0.8157
Triple Number Windward/Leeward High0.9534
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
For information
General Purpose Handicap (GPH)653.1
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Saronikos S All Purpose657.70.9123
Saronikos S Upwind789.00.7604
Saronikos S Downwind488.91.2271
Saronikos N All Purpose657.70.9123
Saronikos N Upwind824.40.7278
Saronikos N Downwind571.61.0498
Saronikos SW All Purpose653.70.9179
Saronikos SW Upwind794.90.7548
Saronikos SW Downwind510.11.1763
Saronikos NE All Purpose729.70.8223
Saronikos NE Upwind763.50.7859
Saronikos NE Downwind649.10.9243
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose600.50.9992
5-Band All Purpose Low885.90.6773
5-Band All Purpose L/M679.70.8828
5-Band All Purpose Med592.71.0123
5-Band All Purpose M/H527.31.1378
5-Band All Purpose High489.31.2261
Single Number Predominant Upwind656.70.9137
Single Number Predominant Reaching544.91.1011
Single Number Predominant Downwind563.81.0643
5-Band 50-50 Windward/Leeward Low1108.40.5413
5-Band 50-50 Windward/Leeward L/M830.10.7228
5-Band 50-50 Windward/Leeward Med724.20.8285
5-Band 50-50 Windward/Leeward M/H644.80.9305
5-Band 50-50 Windward/Leeward High591.91.0136
5-Band 60-40 Windward/Leeward Low1123.70.5339
5-Band 60-40 Windward/Leeward L/M847.90.7076
5-Band 60-40 Windward/Leeward Med750.80.7991
5-Band 60-40 Windward/Leeward M/H685.00.8759
5-Band 60-40 Windward/Leeward High644.20.9314
Triple Number 50-50 Windward/Leeward Low993.70.6038
Triple Number 50-50 Windward/Leeward Med735.60.8157
Triple Number 50-50 Windward/Leeward High629.30.9535
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward762.50.7869
Triple Number 60-40 Windward/Leeward Low1008.90.5947
Triple Number 60-40 Windward/Leeward Med760.40.7890
Triple Number 60-40 Windward/Leeward High672.60.8920
Triple Number All-Purpose Low801.20.7489
Triple Number All-Purpose Med603.10.9949
Triple Number All-Purpose High516.11.1625
Triple Number Predominant Upwind Low832.50.7207
Triple Number Predominant Upwind Med652.40.9197
Triple Number Predominant Upwind High613.20.9784
Triple Number Predominant Reaching Low721.60.8315
Triple Number Predominant Reaching Med554.91.0814
Triple Number Predominant Reaching High444.71.3492
Triple Number Predominant Downwind Low782.50.7668
Triple Number Predominant Downwind Med557.11.0771
Triple Number Predominant Downwind High416.81.4395
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low739.7
Triple Number Coastal/Long Distance Medium584.3
Triple Number Coastal/Long Distance High505.8
Triple Number Windward/Leeward Low947.1
Triple Number Windward/Leeward Medium735.6
Triple Number Windward/Leeward High629.3
Predominantly Upwind659.4
Predominantly Downwind561.5
Predominantly Reaching544.2
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8111
Triple Number Coastal/Long Distance Medium1.0268
Triple Number Coastal/Long Distance High1.1863
Triple Number Windward/Leeward Low0.6335
Triple Number Windward/Leeward Medium0.8157
Triple Number Windward/Leeward High0.9534
Coastal/Long Distance0.9433
Predominantly Upwind0.9100
Predominantly Downwind1.0685
For information
General Purpose Handicap (GPH)653.1
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0281
Distanseseilas Trippeltall svak vind0.8111
Distanseseilas Trippeltall mellomvind1.0268
Distanseseilas Trippeltall sterk vind1.1863
Pølsebane Trippeltall svak vind0.6335
Pølsebane Trippeltall mellomvind0.8157
Pølsebane Trippeltall sterk vind0.9534
Motvind Singeltall0.9100
Medvind Singeltall1.0685
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Coastal/Long Distance636.10.9433
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind659.40.9100
Predominantly Downwind561.51.0685
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore575.21.0431
Cape Doctor Coastal467.91.2823
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8111
Triple Number Coastal/Long Distance Medium1.0268
Triple Number Coastal/Long Distance High1.1863
Triple Number Windward/Leeward Low0.6335
Triple Number Windward/Leeward Medium0.8157
Triple Number Windward/Leeward High0.9534
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8111
Triple Number Coastal/Long Distance Medium1.0268
Triple Number Coastal/Long Distance High1.1863
Triple Number Windward/Leeward Low0.6335
Triple Number Windward/Leeward Medium0.8157
Triple Number Windward/Leeward High0.9534
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Predominantly Upwind659.40.9100
Predominantly Downwind561.51.0685
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance636.10.9433
Triple Number Coastal/Long Distance Low739.70.8111
Triple Number Coastal/Long Distance Medium584.31.0268
Triple Number Coastal/Long Distance High505.81.1863
Triple Number Windward/Leeward Low947.10.6335
Triple Number Windward/Leeward Medium735.60.8157
Triple Number Windward/Leeward High629.30.9534
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1485.91037.5799.7689.4614.2561.9516.0440.1422.1
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP600.50.9992 Predom. Dn High395.41.5175 5B AP M/H516.31.1621 TriNum AP Low739.80.8111 Predom. Rc Low786.40.7630 5B AP High480.41.2490 TriNum AP Med584.41.0267 Predom. Rc L/M612.20.9800 5B SF Bay Low940.40.6381 TriNum AP High505.81.1863 Predom. Rc Med530.01.1320 5B SF Bay L/M792.60.7570 TriNum W/L Low993.70.6038 Predom. Rc M/H466.31.2869 5B SF Bay Med697.80.8599 TriNum W/L Med735.60.8157 Predom. Rc High431.81.3894 5B SF Bay M/H628.80.9542 TriNum W/L Hig629.30.9534 5B W/L Low1108.40.5413 5B SF Bay High585.71.0244 Predom. Upwind684.10.8770 5B W/L L/M830.10.7228 ChiMac Up Low811.90.7390 Predom. Reaching562.81.0661 5B W/L Med724.20.8285 ChiMac Up Med741.20.8095 Predom. Downwind582.51.0301 5B W/L M/H644.80.9305 ChiMac Up High657.00.9133 Predom. Up Low911.60.6582 5B W/L High591.91.0136 ChiMac Off Low751.70.7982 Predom. Up L/M711.10.8438 W/L 60-40 Low1123.70.5339 ChiMac Off Med659.00.9105 Predom. Up Med643.00.9331 W/L 60-40 L/M847.90.7076 ChiMac Off High542.61.1057 Predom. Up M/H603.30.9944 W/L 60-40 Med750.80.7991 ChiMac AP Low777.90.7713 Predom. Up High585.71.0245 W/L 60-40 M/H685.00.8759 ChiMac AP Med697.30.8605 Predom. Dn Low869.60.6900 W/L 60-40 High644.20.9314 ChiMac AP High597.81.0036 Predom. Dn L/M651.90.9204 5B AP Low813.20.7378 BayMac Cove Island892.80.6721 Predom. Dn Med545.21.1006 5B AP L/M655.80.9149 BayMac Shore886.50.6768 Predom. Dn M/H453.91.3219 5B AP Med575.31.0430 Harvest Moon472.41.2702      SA/DSPL Up40.19SA/DSPL Dn96.18
ORC Ref  03190004F8O Issued on 27/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
L'AMANTE FRETTOLOSAITA-17181
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)
ClassMayo 637Measurement24/02/2023HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall6.370Maximum beam2.468Draft1.760Displacement518Wetted area8.17IMS L6.348LSM06.184Accomod. length6.370Sink (kg/mm) 6.69
VCGD0.037VCGM0.063 RM Rated (kg·m) 12.2Limit of positive stability(°) 103.9 Stability Index 94.7 BLR index 0.0000Default crew weight259 Declared crew weight 300
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayFixedForestayFixedInner forestayNot installedMast materialCarbonSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P8.050IG7.807ISP9.152MDT10.076MDL10.124MDT20.062MDL20.095TL1.230MW0.124GO0.124
E2.800J2.237BAS0.882FSDSFJ0.020SPLWPLTPS4.540BD0.135MWT26.00MCG3.260
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date03/05/2016MeasurerFIV-136
SFFP0.301FFM0.797FF0.798LCFcl3.611SG1.0120
SAFP6.370FAM0.668FA0.669LCFsh3.852HBI0.777
W111.5W211.5W311.5W411.5
PD1564.8PD2565.5PD3572.9PD4575.1
WD7.680PLM9000.00GSA1.0RSA1.0RM12.2
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGAMiscellaneousoutboard Johnson 4 hp172.600.00Total deductible0
ORC Ref  03190004F8O Issued on 27/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
L'AMANTE FRETTOLOSAITA-17181
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentC0.520.931.432.162.7316.0124/02/2023B0.360.871.422.132.5615.4613/11/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.060.370.701.301.882.427.74YesNo 9.8403/05/2016B0.060.380.711.321.882.447.67YesNo 9.8424/02/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentD10.838.839.835.585.6898%45.8724/02/2023VMG1C10.718.659.685.046.3280%42.7213/11/2019
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  03190004F8O Issued on 27/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org