International Certificate2025
BLUE SPITFIREITA-12846
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 Angles41.7°41.7°39.7°37.5°37.3°37.4°37.4°38.0°40.3°
Beat VMG2.543.514.244.584.694.744.774.774.58
52°3.955.266.116.426.546.626.676.736.65
60°4.205.506.276.606.756.856.937.026.99
75°4.355.636.366.787.077.257.387.567.63
90°4.335.696.486.807.237.577.848.218.46
110°4.345.736.637.227.678.038.399.079.56
120°4.215.586.517.177.818.428.949.8910.94
135°3.625.026.096.737.368.109.0211.3513.26
150°2.974.225.316.176.717.247.849.8513.15
Run VMG2.573.664.605.355.966.476.978.5311.39
Gybe Angles143.0°143.0°147.4°151.4°163.0°167.8°165.7°140.9°145.9°
APH ToD:575.9CDL: 7.517APH ToT: 1.0418CertNo:25/1
BOAT
ClassOne Design 27DesignerBesozziBuilderGam.mo StampiAge date03/1994Series date03/1994Offset fileOD27.OFFData fileI12846
HULL
Length Overall8.085 mMaximum Beam2.812 mDraft1.890 mDisplacement1,363 kgDLR3.9818IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight420 kg(declared)Minimum weight290 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail22.7023.24Headsail Luffed15.4715.47Headsail FlyingSymmetric43.9345.42Asymmetric53.2053.20 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.73Storm Jib5.04Heavy Weather Jib13.60
SAIL LIMITS
Headsails5Spinnakers4
✱ Asymmetric SHALL NOT be tacked on the pole
STABILITY
Righting Moment22.3 kg·mStability Index94.8
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.
International Certificate2025
BLUE SPITFIREITA-12846
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 VMG1417.01024.3848.4786.2768.3760.1755.1755.2785.2
52°912.1683.9589.4560.5550.1543.9539.6535.1541.2
60°858.0655.0574.3545.8533.0525.2519.5512.9515.3
75°827.2639.1565.6530.8508.9496.9488.0476.5471.9
90°831.3633.1555.5529.2498.2475.4459.3438.6425.8
110°828.9628.2542.9498.5469.1448.1429.2396.9376.5
120°855.9645.0553.3501.9460.7427.7402.8363.9329.0
135°995.5717.2590.7534.7489.1444.4398.9317.2271.5
150°1211.4852.1677.4583.6536.3497.3459.4365.4273.7
Run VMG1401.3983.9782.2672.8604.2556.1516.8422.0316.1
Selected Courses
Windward / Leeward1408.91004.1815.3729.5686.2658.1636.0588.6550.6
All purpose1062.2777.7650.2594.5562.6539.9520.8485.2462.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward708.20.8473
All purpose575.91.0418
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7371
Downwind "popa"0.9255
70% up, 30% down "Ilhabela"0.7851
30% up, 70% down "Ilhabela-inverso"0.8596
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Predominantly Upwind628.20.9550
Predominantly Downwind575.41.0428
Custom scoring options for Canada
Scoring OptionTODTOT
TriNum AP Low714.00.8404
TriNum AP Med574.91.0436
TriNum AP High512.21.1714
TriNum W/L Low951.10.6309
TriNum W/L Med704.40.8518
TriNum W/L Hig623.80.9619
Predom. Upwind650.70.9220
Predom. Reaching566.21.0597
Predom. Downwind595.61.0074
Predom. Up Low854.60.7021
Predom. Up L/M674.00.8902
Predom. Up Med614.50.9765
Predom. Up M/H580.51.0335
Predom. Up High561.11.0694
Predom. Dn Low853.50.7030
Predom. Dn L/M648.60.9250
Predom. Dn Med561.51.0685
Predom. Dn M/H490.11.2241
Predom. Dn High430.31.3945
Predom. Rc Low761.90.7875
Predom. Rc L/M602.30.9962
Predom. Rc Med538.51.1142
Predom. Rc M/H486.61.2329
Predom. Rc High448.81.3368
SA/DSPL Upwind31.01SA/DSPL Downwind61.67
Scoring OptionTODTOT
5B W/L Low1058.20.5670
5B W/L L/M793.80.7559
5B W/L Med695.20.8631
5B W/L M/H635.90.9435
5B W/L High590.21.0166
W/L 60-40 Low1062.20.5649
W/L 60-40 L/M803.10.7471
W/L 60-40 Med711.20.8436
W/L 60-40 M/H660.10.9089
W/L 60-40 High624.20.9612
5B AP Low783.60.7657
5B AP L/M636.40.9428
5B AP Med567.91.0565
5B AP M/H521.51.1505
5B AP High487.31.2312
5B SF Bay Low913.30.6569
5B SF Bay L/M760.10.7894
5B SF Bay Med671.20.8939
5B SF Bay M/H616.70.9730
5B SF Bay High575.81.0421
Chicago-Mac Upwind0.8989
Chicago-Mac All Purpose0.9354
Chicago-Mac Downwind0.9683
BayMac Cove Island855.80.7011
BayMac Shore849.80.7061
Harvest Moon490.61.2229
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance624.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating624.00.9615
FinRating, kevyt tuuli1039.20.9622
FinRating, kova tuuli488.11.0244
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9615
Triple Number Coastal/Long Distance Low0.8404
Triple Number Coastal/Long Distance Medium1.0437
Triple Number Coastal/Long Distance High1.1714
Triple Number Windward/Leeward Low0.6595
Triple Number Windward/Leeward Medium0.8518
Triple Number Windward/Leeward High0.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
For information
General Purpose Handicap (GPH)640.9
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low713.9
Triple Number Coastal/Long Distance Medium574.9
Triple Number Coastal/Long Distance High512.2
Triple Number Windward/Leeward Low909.8
Triple Number Windward/Leeward Medium704.4
Triple Number Windward/Leeward High623.8
Predominantly Upwind628.2
Predominantly Downwind575.4
Predominantly Reaching554.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8404
Triple Number Coastal/Long Distance Medium1.0437
Triple Number Coastal/Long Distance High1.1714
Triple Number Windward/Leeward Low0.6595
Triple Number Windward/Leeward Medium0.8518
Triple Number Windward/Leeward High0.9619
Coastal/Long Distance0.9615
Predominantly Upwind0.9550
Predominantly Downwind1.0428
For information
General Purpose Handicap (GPH)640.9
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0418
Distanseseilas Trippeltall svak vind0.8404
Distanseseilas Trippeltall mellomvind1.0437
Distanseseilas Trippeltall sterk vind1.1714
Pølsebane Trippeltall svak vind0.6595
Pølsebane Trippeltall mellomvind0.8518
Pølsebane Trippeltall sterk vind0.9619
Motvind Singeltall0.9550
Medvind Singeltall1.0428
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Coastal/Long Distance624.00.9615
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind628.20.9550
Predominantly Downwind575.41.0428
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore562.01.0676
Cape Doctor Coastal469.11.2791
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8404
Triple Number Coastal/Long Distance Medium1.0437
Triple Number Coastal/Long Distance High1.1714
Triple Number Windward/Leeward Low0.6595
Triple Number Windward/Leeward Medium0.8518
Triple Number Windward/Leeward High0.9619
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8404
Triple Number Coastal/Long Distance Medium1.0437
Triple Number Coastal/Long Distance High1.1714
Triple Number Windward/Leeward Low0.6595
Triple Number Windward/Leeward Medium0.8518
Triple Number Windward/Leeward High0.9619
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Predominantly Upwind628.20.9550
Predominantly Downwind575.41.0428
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance624.00.9615
Triple Number Coastal/Long Distance Low713.90.8404
Triple Number Coastal/Long Distance Medium574.91.0437
Triple Number Coastal/Long Distance High512.21.1714
Triple Number Windward/Leeward Low909.80.6595
Triple Number Windward/Leeward Medium704.40.8518
Triple Number Windward/Leeward High623.80.9619
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1489.11002.1770.3663.0600.4560.3525.0461.2433.7
Custom scoring options for United States of America
Scoring OptionTODTOT
TriNum AP Low714.00.8404
TriNum AP Med574.91.0436
TriNum AP High512.21.1714
TriNum W/L Low951.10.6309
TriNum W/L Med704.40.8518
TriNum W/L Hig623.80.9619
Predom. Upwind650.70.9220
Predom. Reaching566.21.0597
Predom. Downwind595.61.0074
Predom. Up Low854.60.7021
Predom. Up L/M674.00.8902
Predom. Up Med614.50.9765
Predom. Up M/H580.51.0335
Predom. Up High561.11.0694
Predom. Dn Low853.50.7030
Predom. Dn L/M648.60.9250
Predom. Dn Med561.51.0685
Predom. Dn M/H490.11.2241
Predom. Dn High430.31.3945
Predom. Rc Low761.90.7875
Predom. Rc L/M602.30.9962
Predom. Rc Med538.51.1142
Predom. Rc M/H486.61.2329
Predom. Rc High448.81.3368
SA/DSPL Upwind31.01SA/DSPL Downwind61.67
Scoring OptionTODTOT
5B W/L Low1058.20.5670
5B W/L L/M793.80.7559
5B W/L Med695.20.8631
5B W/L M/H635.90.9435
5B W/L High590.21.0166
W/L 60-40 Low1062.20.5649
W/L 60-40 L/M803.10.7471
W/L 60-40 Med711.20.8436
W/L 60-40 M/H660.10.9089
W/L 60-40 High624.20.9612
5B AP Low783.60.7657
5B AP L/M636.40.9428
5B AP Med567.91.0565
5B AP M/H521.51.1505
5B AP High487.31.2312
5B SF Bay Low913.30.6569
5B SF Bay L/M760.10.7894
5B SF Bay Med671.20.8939
5B SF Bay M/H616.70.9730
5B SF Bay High575.81.0421
Chicago-Mac Upwind0.8989
Chicago-Mac All Purpose0.9354
Chicago-Mac Downwind0.9683
BayMac Cove Island855.80.7011
BayMac Shore849.80.7061
Harvest Moon490.61.2229
International Certificate2025
BLUE SPITFIREITA-12846
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)
ClassOne Design 27Measurement07/11/2024HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.085Max. Beam2.812Draft1.890Displacement1,363Wetted area11.73IMS L7.479LSM06.995Acc. length8.085Sink (kg/mm) 9.10
VCGD0.084VCGM0.110RM Rated (kg·m) 22.3Limit of positive stability(°) 102.4Stability Index94.8Default crew weight413Declared crew weight420
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingYesAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P9.880IG9.949ISP10.949MDT10.080MDL10.120MDT20.075MDL20.080TL1.600MW0.115GO0.140
E3.890J2.870BAS1.319FSD0.027SFJ0.120SPL3.520WPLTPS3.520BD0.135MWT44.40MCG4.560
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date07/11/2024MeasurerFIV-162CommentCondizioni ottime
SFFP0.149FFM0.859FF0.860LCFcl4.482SG1.0190
SAFP7.828FAM0.708FA0.709LCFsh4.680HBI0.780
W115.1W215.1W315.1W415.1
PD1508.1PD2519.7PD3523.1PD4517.2
WD9.670PLM9000.00GSA1.0RSA1.0RM22.2
BALLAST
IdKindDescriptionWeightLCGVCGTCGAFixed3 lead blocks cl355.19
TANKS
INVENTORY
IdDescriptionWeight SailingLCGVCGGAIdDescriptionWeight SailingLCGVCGGAAYamaha 6 Hp - in dinette4.50   
INVENTORY
BALLASTIdKindDescriptionWeightLCGVCGTCGAFixed3 lead blocks cl355.19Fixed Ballast Total35
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGAEngine (IC)Yamaha 6 Hp - in dinette4.50Total deductible
International Certificate2025
BLUE SPITFIREITA-12846
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.250.851.452.433.2422.7007/11/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.080.430.801.582.393.249.62YesNo 15.4707/11/2024J1B0.100.450.781.452.112.769.63YesNo 13.8407/11/2024J3
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentA9.429.429.425.625.5043.9307/11/2024S1
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentB11.4510.0010.735.886.2494%53.2007/11/2024A2A11.4410.0010.725.866.2694%53.0607/11/2024A1