International
Certificate
2023

Boat

L'AMANTE FRETTOLOSA

ITA-17181

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles42.6°40.2°38.8°39.4°40.0°40.5°41.7°
Beat VMG3.293.964.224.274.274.284.22
52°4.985.776.096.216.276.336.33
60°5.225.966.386.576.686.766.82
75°5.486.116.767.177.427.607.82
90°5.806.436.857.628.158.498.93
110°5.796.757.538.108.609.0410.32
120°5.606.597.668.509.169.8210.86
135°5.026.067.068.329.5410.7212.74
150°4.245.356.167.098.199.4512.76
Run VMG3.674.645.336.147.098.1911.05
Gybe Angles144.2°148.7°149.6°146.0°145.3°142.4°147.1°

APH: 579.7

CDL: 6.304

GPH: 648.2

CertNo: 23/1

BOAT
ClassMayo 637DesignerBuaBuilderautocostruitaAge date11/2015Series date04/2015Offset fileMAYO637.offData fileI17181
HULL
Length Overall6.370 mMaximum Beam2.468 mDraft1.760 mDisplacement516 kgDLR2.1824IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.260%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight300 kgMinimum weight215 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail16.0116.73Headsail Luffed9.849.84Headsail FlyingSymmetricAsymmetric45.8745.87 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail3.95Storm Jib3.05Heavy Weather Jib8.23
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment12.2 kg·mStability Index95.1
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  03190002HULIssued on 14/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

L'AMANTE FRETTOLOSA

ITA-17181

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1093.5908.5854.0843.7843.5841.7853.8
52°723.4623.9591.5580.1574.1569.0568.8
60°689.5604.1564.0548.0539.0532.3527.7
75°657.5588.9532.5501.9485.3473.9460.6
90°620.8559.5525.2472.6441.5423.9403.1
110°621.8533.3478.4444.6418.5398.4348.8
120°643.0546.5469.7423.5393.1366.7331.4
135°717.1594.5510.0432.8377.2335.9282.7
150°848.4672.5584.9507.8439.6380.8282.2
Run VMG979.6776.5675.3586.4507.6439.8325.8
Selected Courses
Windward / Leeward1036.6842.5764.7715.0675.5640.7589.8
All purpose796.8668.1606.9565.3535.5511.4477.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward732.20.8194
All purpose579.71.0350
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6732
Downwind "popa"0.9788
70% up, 30% down "Ilhabela"0.7428
30% up, 70% down "Ilhabela-inverso"0.8615
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Predominantly Upwind654.00.9174
Predominantly Downwind559.51.0723
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low732.40.8192
Triple Number All Purpose Medium580.31.0340
Triple Number All Purpose High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Predominantly Upwind654.00.9174
Predominantly Downwind559.51.0723
Predominantly Upwind Low829.10.7236
Predominantly Upwind Medium695.80.8623
Predominantly Upwind High670.30.8951
Predominantly Downwind Low783.60.7657
Predominantly Downwind Medium551.41.0881
Predominantly Downwind High404.41.4838
Chicago-Mac Upwind0.9006
Chicago-Mac All Purpose0.9680
Chicago-Mac Downwind1.0447
Bayview-Mac Cove Island0.9083
Bayview-Mac Shore0.9075
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching535.61.1202
Predominantly Reaching Low660.20.9088
Predominantly Reaching Medium533.81.1240
Predominantly Reaching High442.21.3568
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1021.60.5873
5-Band Low / Medium870.00.6897
5-Band Medium721.10.8321
5-Band Medium / High644.30.9312
5-Band High598.61.0023
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance631.6
Triple Number Coastal/Long Distance Low732.4
Triple Number Coastal/Long Distance Medium580.3
Triple Number Coastal/Long Distance High504.6
Triple Number Windward/Leeward Low939.6
Triple Number Windward/Leeward Medium732.3
Triple Number Windward/Leeward High630.3
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8192
Triple Number Coastal/Long Distance Medium1.0340
Triple Number Coastal/Long Distance High1.1890
Triple Number Windward/Leeward Low0.6386
Triple Number Windward/Leeward Medium0.8193
Triple Number Windward/Leeward High0.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low732.4
Triple Number Coastal/Long Distance Medium580.3
Triple Number Coastal/Long Distance High504.6
Triple Number Windward/Leeward Low939.6
Triple Number Windward/Leeward Medium732.3
Triple Number Windward/Leeward High630.3
Predominantly Upwind654.0
Predominantly Downwind559.5
Predominantly Reaching540.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8192
Triple Number Coastal/Long Distance Medium1.0340
Triple Number Coastal/Long Distance High1.1890
Triple Number Windward/Leeward Low0.6386
Triple Number Windward/Leeward Medium0.8193
Triple Number Windward/Leeward High0.9519
Coastal/Long Distance0.9500
Predominantly Upwind0.9174
Predominantly Downwind1.0723
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8192
Tretall Distanseseilas Mellomvind1.0340
Tretall Distanseseilas Mye vind1.1890
Tretall Pølsebane Lite vind0.6386
Tretall Pølsebane Mellomvind0.8193
Tretall Pølsebane Mye vind0.9519
Distanseseilas ett tall (OSN 8-16kn)0.9500
Distanseseilas ett tall (APH 6-20kn)1.0350
Enkeltall Motvind0.9174
Enkeltall Medvind1.0723
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Coastal/Long Distance631.60.9500
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind654.00.9174
Predominantly Downwind559.51.0723
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore605.10.9916
Cape Doctor Coastal487.51.2308
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8192
Triple Number Coastal/Long Distance Medium1.0340
Triple Number Coastal/Long Distance High1.1890
Triple Number Windward/Leeward Low0.6386
Triple Number Windward/Leeward Medium0.8193
Triple Number Windward/Leeward High0.9519
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8192
Triple Number Coastal/Long Distance Medium1.0340
Triple Number Coastal/Long Distance High1.1890
Triple Number Windward/Leeward Low0.6386
Triple Number Windward/Leeward Medium0.8193
Triple Number Windward/Leeward High0.9519
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Predominantly Upwind654.00.9174
Predominantly Downwind559.51.0723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance631.60.9500
Triple Number Coastal/Long Distance Low732.40.8192
Triple Number Coastal/Long Distance Medium580.31.0340
Triple Number Coastal/Long Distance High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1030.9793.1685.9610.2558.6512.8441.6
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low732.40.8192
Triple Number All Purpose Medium580.31.0340
Triple Number All Purpose High504.61.1890
Triple Number Windward/Leeward Low939.60.6386
Triple Number Windward/Leeward Medium732.30.8193
Triple Number Windward/Leeward High630.30.9519
Predominantly Upwind654.00.9174
Predominantly Downwind559.51.0723
Predominantly Upwind Low829.10.7236
Predominantly Upwind Medium695.80.8623
Predominantly Upwind High670.30.8951
Predominantly Downwind Low783.60.7657
Predominantly Downwind Medium551.41.0881
Predominantly Downwind High404.41.4838
Chicago-Mac Upwind0.9006
Chicago-Mac All Purpose0.9680
Chicago-Mac Downwind1.0447
Bayview-Mac Cove Island0.9083
Bayview-Mac Shore0.9075
Harvest Moon Regatta463.11.2957
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy617.90.9711
San Francisco Bay Medium714.00.8403
Predominantly Reaching535.61.1202
Predominantly Reaching Low660.20.9088
Predominantly Reaching Medium533.81.1240
Predominantly Reaching High442.21.3568
Windward/Leeward 60-40 Low951.80.6304
Windward/Leeward 60-40 Medium773.10.7760
Windward/Leeward 60-40 High704.00.8523
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1021.60.5873
5-Band Low / Medium870.00.6897
5-Band Medium721.10.8321
5-Band Medium / High644.30.9312
5-Band High598.61.0023
ORC Ref  03190002HULIssued on 14/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

L'AMANTE FRETTOLOSA

ITA-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
LOA6.370Max. Beam2.468Draft1.760Displacement516Wetted area8.23IMS L6.343LSM06.184Acc. length6.370Sink (kg/mm) 6.68
VCGD0.043VCGM0.069RM Rated (kg·m) 12.2Limit of positive stability(°) 104.4Stability Index95.1
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionFixedInner stayNone FittedCarbon mastYesHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P8.050IG7.807ISP9.152MDT10.076MDL10.124MDT20.062MDL20.095TL1.230MW0.124GO0.124
E2.800J2.237BAS0.882FSDSFJ0.020SPLWPLTPS4.540BD0.135MWT26.00MCG3.260
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date03/05/2016MeasurerFIV-136Comment
SFFP0.301FFM0.797FF0.798LCFcl3.637SG1.0120
SAFP6.370FAM0.668FA0.669LCFsh3.878HBI0.777
W111.5W211.5W311.5W411.5
PD1564.8PD2565.5PD3572.9PD4575.1
WD7.680PLM9000.00GSA1.0RSA1.0RM12.2
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGAMiscellaneousoutboard Johnson 4 hp172.600.00Total deductible0
ORC Ref  03190002HULIssued on 14/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

L'AMANTE FRETTOLOSA

ITA-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
ORC Ref  03190002HULIssued on 14/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org