Club Certificate2025
MABELITA-5517
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 Angles43.1°43.1°40.5°40.2°40.4°40.8°41.3°42.4°45.2°
Beat VMG2.303.123.693.893.963.963.973.923.70
52°3.584.745.455.735.825.885.925.925.76
60°3.794.975.695.986.086.146.196.216.16
75°3.935.145.876.246.376.466.536.616.63
90°3.975.236.016.406.566.696.786.906.97
110°3.714.995.896.406.736.957.097.287.40
120°3.434.715.686.296.706.997.227.557.82
135°3.044.255.245.996.476.837.137.718.20
150°2.563.654.605.355.876.256.567.057.53
Run VMG2.223.163.984.645.095.616.086.707.16
Gybe Angles145.9°145.9°146.7°146.3°147.4°170.0°172.0°174.3°174.1°
APH ToD:664.2CDL: 6.752APH ToT: 0.9034CertNo:25/1
BOAT
ClassAlpa 11 SupermaikaDesignerIllingworthBuilderAlpaAge date06/1970Series date01/1968Offset fileI17121.OFFData fileI5517
HULL
Length Overall11.269 mMaximum Beam2.766 mDraft1.762 mDisplacement5,500 kgDLR13.2342IMS DivisionCruiser/RacerDynamic Allowance0.560%Age Allowance0.487%
PROPELLER
InstallationShaft non exposedTypeFeathering 3 bladesDiameter0.406m
CREW
Maximum weight500 kg(declared)Minimum weight370 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail24.7725.19Headsail Luffed40.2740.27Headsail Flying56.2456.24SymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail7.73Storm Jib7.98Heavy Weather Jib21.55
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers0
✱ No spinnaker pole aboard
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.
ORC Ref  03190004184Issued on 03/10/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MABELITA-5517
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 VMG1566.81152.4975.5925.6909.7908.2906.3917.2972.3
52°1004.4759.7660.2628.0618.2612.5608.6608.4625.0
60°950.1723.9633.2602.1592.4586.0581.6579.7584.1
75°916.2700.9613.8577.1564.8557.0551.2544.9542.9
90°907.2688.9598.9562.4548.7538.0531.2521.5516.4
110°970.5720.8611.4562.9534.8518.1507.6494.4486.4
120°1048.2764.0634.0571.9537.7514.9498.8477.1460.3
135°1185.1848.0686.8600.7556.4527.4505.1467.1438.8
150°1406.1986.7782.9672.3613.0575.6548.7510.5478.1
Run VMG1622.21139.4904.0776.3707.8641.4591.9537.6502.9
Selected Courses
Windward / Leeward1594.11145.9939.7850.9808.7774.8749.1727.4737.6
All purpose1206.0882.9737.9675.9647.1627.9613.9599.4601.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward830.30.7226
All purpose664.20.9034
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6274
Downwind "popa"0.7927
70% up, 30% down "Ilhabela"0.6692
30% up, 70% down "Ilhabela-inverso"0.7346
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Predominantly Upwind722.00.8310
Predominantly Downwind664.10.9035
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low810.40.7403
TriNum AP Med659.50.9098
TriNum AP High611.90.9805
TriNum W/L Low1089.10.5509
TriNum W/L Med825.20.7271
TriNum W/L Hig747.40.8028
Predom. Upwind749.30.8008
Predom. Reaching648.30.9255
Predom. Downwind692.60.8663
Predom. Up Low960.80.6245
Predom. Up L/M765.90.7834
Predom. Up Med706.90.8487
Predom. Up M/H681.90.8799
Predom. Up High677.00.8863
Predom. Dn Low980.30.6121
Predom. Dn L/M740.40.8103
Predom. Dn Med645.40.9297
Predom. Dn M/H584.21.0270
Predom. Dn High552.11.0868
Predom. Rc Low860.10.6976
Predom. Rc L/M675.40.8884
Predom. Rc Med610.40.9830
Predom. Rc M/H574.71.0440
Predom. Rc High557.01.0771
SA/DSPL Upwind20.76SA/DSPL Downwind25.86
Scoring OptionTODTOT
5B W/L Low1206.50.4973
5B W/L L/M919.40.6526
5B W/L Med815.80.7355
5B W/L M/H754.90.7948
5B W/L High732.90.8186
W/L 60-40 Low1207.50.4969
W/L 60-40 L/M930.40.6449
W/L 60-40 Med836.10.7176
W/L 60-40 M/H785.70.7637
W/L 60-40 High771.30.7779
5B AP Low891.10.6733
5B AP L/M724.00.8287
5B AP Med653.40.9183
5B AP M/H616.60.9730
5B AP High602.20.9963
5B SF Bay Low1044.70.5743
5B SF Bay L/M879.30.6824
5B SF Bay Med786.80.7626
5B SF Bay M/H737.60.8134
5B SF Bay High721.20.8320
Chicago-Mac Upwind0.7834
Chicago-Mac All Purpose0.8140
Chicago-Mac Downwind0.8385
BayMac Cove Island977.80.6136
BayMac Shore969.30.6190
Harvest Moon571.01.0508
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance723.4
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating723.40.8294
FinRating, kevyt tuuli1183.30.8451
FinRating, kova tuuli606.90.8238
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8294
Triple Number Coastal/Long Distance Low0.7403
Triple Number Coastal/Long Distance Medium0.9099
Triple Number Coastal/Long Distance High0.9805
Triple Number Windward/Leeward Low0.5754
Triple Number Windward/Leeward Medium0.7271
Triple Number Windward/Leeward High0.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
For information
General Purpose Handicap (GPH)735.5
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low810.5
Triple Number Coastal/Long Distance Medium659.4
Triple Number Coastal/Long Distance High611.9
Triple Number Windward/Leeward Low1042.8
Triple Number Windward/Leeward Medium825.2
Triple Number Windward/Leeward High747.4
Predominantly Upwind722.0
Predominantly Downwind664.1
Predominantly Reaching634.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7403
Triple Number Coastal/Long Distance Medium0.9099
Triple Number Coastal/Long Distance High0.9805
Triple Number Windward/Leeward Low0.5754
Triple Number Windward/Leeward Medium0.7271
Triple Number Windward/Leeward High0.8028
Coastal/Long Distance0.8294
Predominantly Upwind0.8310
Predominantly Downwind0.9035
For information
General Purpose Handicap (GPH)735.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9034
Distanseseilas Trippeltall svak vind0.7403
Distanseseilas Trippeltall mellomvind0.9099
Distanseseilas Trippeltall sterk vind0.9805
Pølsebane Trippeltall svak vind0.5754
Pølsebane Trippeltall mellomvind0.7271
Pølsebane Trippeltall sterk vind0.8028
Motvind Singeltall0.8310
Medvind Singeltall0.9035
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Coastal/Long Distance723.40.8294
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind722.00.8310
Predominantly Downwind664.10.9035
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore734.50.8168
Cape Doctor Coastal600.80.9987
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7403
Triple Number Coastal/Long Distance Medium0.9099
Triple Number Coastal/Long Distance High0.9805
Triple Number Windward/Leeward Low0.5754
Triple Number Windward/Leeward Medium0.7271
Triple Number Windward/Leeward High0.8028
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7403
Triple Number Coastal/Long Distance Medium0.9099
Triple Number Coastal/Long Distance High0.9805
Triple Number Windward/Leeward Low0.5754
Triple Number Windward/Leeward Medium0.7271
Triple Number Windward/Leeward High0.8028
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Predominantly Upwind722.00.8310
Predominantly Downwind664.10.9035
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance723.40.8294
Triple Number Coastal/Long Distance Low810.50.7403
Triple Number Coastal/Long Distance Medium659.40.9099
Triple Number Coastal/Long Distance High611.90.9805
Triple Number Windward/Leeward Low1042.80.5754
Triple Number Windward/Leeward Medium825.20.7271
Triple Number Windward/Leeward High747.40.8028
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1694.01145.2884.2764.2695.4653.5618.5565.0559.7
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low810.40.7403
TriNum AP Med659.50.9098
TriNum AP High611.90.9805
TriNum W/L Low1089.10.5509
TriNum W/L Med825.20.7271
TriNum W/L Hig747.40.8028
Predom. Upwind749.30.8008
Predom. Reaching648.30.9255
Predom. Downwind692.60.8663
Predom. Up Low960.80.6245
Predom. Up L/M765.90.7834
Predom. Up Med706.90.8487
Predom. Up M/H681.90.8799
Predom. Up High677.00.8863
Predom. Dn Low980.30.6121
Predom. Dn L/M740.40.8103
Predom. Dn Med645.40.9297
Predom. Dn M/H584.21.0270
Predom. Dn High552.11.0868
Predom. Rc Low860.10.6976
Predom. Rc L/M675.40.8884
Predom. Rc Med610.40.9830
Predom. Rc M/H574.71.0440
Predom. Rc High557.01.0771
SA/DSPL Upwind20.76SA/DSPL Downwind25.86
Scoring OptionTODTOT
5B W/L Low1206.50.4973
5B W/L L/M919.40.6526
5B W/L Med815.80.7355
5B W/L M/H754.90.7948
5B W/L High732.90.8186
W/L 60-40 Low1207.50.4969
W/L 60-40 L/M930.40.6449
W/L 60-40 Med836.10.7176
W/L 60-40 M/H785.70.7637
W/L 60-40 High771.30.7779
5B AP Low891.10.6733
5B AP L/M724.00.8287
5B AP Med653.40.9183
5B AP M/H616.60.9730
5B AP High602.20.9963
5B SF Bay Low1044.70.5743
5B SF Bay L/M879.30.6824
5B SF Bay Med786.80.7626
5B SF Bay M/H737.60.8134
5B SF Bay High721.20.8320
Chicago-Mac Upwind0.7834
Chicago-Mac All Purpose0.8140
Chicago-Mac Downwind0.8385
BayMac Cove Island977.80.6136
BayMac Shore969.30.6190
Harvest Moon571.01.0508
ORC Ref  03190004184Issued on 03/10/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MABELITA-5517
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)
ClassAlpa 11 SupermaikaMeasurement01/01/1975HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA11.269Max. Beam2.766Draft1.762Displacement5,500Wetted area22.75IMS L8.114LSM07.462Acc. length8.989Sink (kg/mm) 13.68
VCGD-0.065VCGM0.121RM Rated (kg·m) 45.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight453Declared crew weight500
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.406PBW0.115PIPA0.0011
PSD0.030PHD0.060PHL0.120
PSA10.0°ESL0.175
RIG
Forestay tensionFixedInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P11.150IG12.600ISP12.700MDT10.123MDL10.172MDT2MDL2TLMW0.172GO0.182
E3.960J3.810BAS1.605FSDNo FoilSFJ0.450SPLWPLTPS4.260BD0.104MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.080Flotation Date01/01/1975
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03190004184Issued on 03/10/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
MABELITA-5517
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.110.711.312.363.1824.7702/10/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentB0.391.562.735.086.447.8012.45NoYes056.24A6.3812.40NoNo 40.2702/10/2025
CRUISER/RACER REQUIREMENTS*
Accommodation length9.0 mTable area0.44 m²Headroom1.62 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity60 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity30 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03190004184Issued on 03/10/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org