Club
One Design
 Certificate
2023

Boat

STAMURA SAILOR PROJECT

ITA-3121SB3

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 Angles42.4°40.0°38.1°38.1°38.2°38.7°39.9°
Beat VMG3.133.724.074.174.204.214.16
52°4.705.395.735.895.976.026.07
60°4.925.555.896.136.256.336.41
75°5.045.676.076.446.706.867.06
90°5.255.866.166.567.007.387.85
110°5.346.076.657.077.447.828.55
120°5.226.016.687.367.938.459.63
135°4.785.676.347.087.969.0211.66
150°4.095.095.746.296.927.7811.01
Run VMG3.544.414.975.445.996.739.53
Gybe Angles145.6°149.2°150.1°147.8°145.0°143.0°144.0°

APH: 629.5

CDL: 5.950

GPH: 700.2

CertNo: 23/1

BOAT
ClassSB20 ONE DESIGNDesignerTONY CASTROBuilderLaseAge dateSeries date08/2003Offset filelasb3.ODData file3121SB3
HULL
Length Overall6.141 mMaximum Beam2.148 mDraft1.509 mDisplacement696 kgDLR3.9080IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight270 kgMinimum weight185 kg * when appliedNon Manual PowerNoCrew Arm ExtensionLoose or no lifelines
SAIL AREAS (m²)
MeasuredRatedMainsail16.9117.56Headsail Luffed8.868.86Headsail FlyingSymmetricAsymmetric44.5044.50 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail4.68Storm Jib2.87Heavy Weather Jib7.74
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment15.3 kg·mStability Index102.6
COMMENTS
Intestatario: Baccega Stefano
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  03190002NSSIssued on 07/06/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

STAMURA SAILOR PROJECT

ITA-3121SB3

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 VMG1151.5966.9884.6862.5856.6856.1864.4
52°765.5667.6628.1611.0602.8597.8593.4
60°732.2648.6611.0587.4576.2568.8561.6
75°714.2635.1593.4559.2537.6524.8510.1
90°685.5614.4584.7549.0514.4487.5458.3
110°674.0593.6541.2509.5483.6460.5420.9
120°689.5599.5538.6489.2453.9426.1373.8
135°753.9634.7567.4508.4452.5399.3308.9
150°880.4706.8627.3572.7520.4463.0327.0
Run VMG1016.6816.1724.2661.2600.9534.6377.6
Selected Courses
Windward / Leeward1084.0891.5804.4761.9728.7695.4621.0
All purpose843.9715.8654.3617.3588.4562.5514.3
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward779.10.7701
All purpose629.50.9532
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6519
Downwind "popa"0.8877
70% up, 30% down "Ilhabela"0.7084
30% up, 70% down "Ilhabela-inverso"0.8008
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Predominantly Upwind697.10.8607
Predominantly Downwind618.90.9694
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low779.90.7693
Triple Number All Purpose Medium630.60.9514
Triple Number All Purpose High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Predominantly Upwind697.10.8607
Predominantly Downwind618.90.9694
Predominantly Upwind Low879.70.6821
Predominantly Upwind Medium731.90.8197
Predominantly Upwind High697.90.8598
Predominantly Downwind Low826.50.7260
Predominantly Downwind Medium616.20.9738
Predominantly Downwind High468.71.2802
Chicago-Mac Upwind0.8474
Chicago-Mac All Purpose0.8961
Chicago-Mac Downwind0.9523
Bayview-Mac Cove Island0.8414
Bayview-Mac Shore0.8421
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching592.51.0126
Predominantly Reaching Low707.80.8477
Predominantly Reaching Medium590.91.0155
Predominantly Reaching High494.71.2127
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1069.20.5612
5-Band Low / Medium916.60.6546
5-Band Medium768.50.7807
5-Band Medium / High694.00.8645
5-Band High633.90.9466
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance682.1
Triple Number Coastal/Long Distance Low779.9
Triple Number Coastal/Long Distance Medium630.6
Triple Number Coastal/Long Distance High550.9
Triple Number Windward/Leeward Low987.8
Triple Number Windward/Leeward Medium778.6
Triple Number Windward/Leeward High675.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7693
Triple Number Coastal/Long Distance Medium0.9514
Triple Number Coastal/Long Distance High1.0891
Triple Number Windward/Leeward Low0.6074
Triple Number Windward/Leeward Medium0.7706
Triple Number Windward/Leeward High0.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low779.9
Triple Number Coastal/Long Distance Medium630.6
Triple Number Coastal/Long Distance High550.9
Triple Number Windward/Leeward Low987.8
Triple Number Windward/Leeward Medium778.6
Triple Number Windward/Leeward High675.8
Predominantly Upwind697.1
Predominantly Downwind618.9
Predominantly Reaching599.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7693
Triple Number Coastal/Long Distance Medium0.9514
Triple Number Coastal/Long Distance High1.0891
Triple Number Windward/Leeward Low0.6074
Triple Number Windward/Leeward Medium0.7706
Triple Number Windward/Leeward High0.8878
Coastal/Long Distance0.8796
Predominantly Upwind0.8607
Predominantly Downwind0.9694
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7693
Tretall Distanseseilas Mellomvind0.9514
Tretall Distanseseilas Mye vind1.0891
Tretall Pølsebane Lite vind0.6074
Tretall Pølsebane Mellomvind0.7706
Tretall Pølsebane Mye vind0.8878
Distanseseilas ett tall (OSN 8-16kn)0.8796
Distanseseilas ett tall (APH 6-20kn)0.9532
Enkeltall Motvind0.8607
Enkeltall Medvind0.9694
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Coastal/Long Distance682.10.8796
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind697.10.8607
Predominantly Downwind618.90.9694
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore643.30.9327
Cape Doctor Coastal528.71.1348
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7693
Triple Number Coastal/Long Distance Medium0.9514
Triple Number Coastal/Long Distance High1.0891
Triple Number Windward/Leeward Low0.6074
Triple Number Windward/Leeward Medium0.7706
Triple Number Windward/Leeward High0.8878
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7693
Triple Number Coastal/Long Distance Medium0.9514
Triple Number Coastal/Long Distance High1.0891
Triple Number Windward/Leeward Low0.6074
Triple Number Windward/Leeward Medium0.7706
Triple Number Windward/Leeward High0.8878
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Predominantly Upwind697.10.8607
Predominantly Downwind618.90.9694
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance682.10.8796
Triple Number Coastal/Long Distance Low779.90.7693
Triple Number Coastal/Long Distance Medium630.60.9514
Triple Number Coastal/Long Distance High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1077.3841.7730.3660.2611.9566.2482.4
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low779.90.7693
Triple Number All Purpose Medium630.60.9514
Triple Number All Purpose High550.91.0891
Triple Number Windward/Leeward Low987.80.6074
Triple Number Windward/Leeward Medium778.60.7706
Triple Number Windward/Leeward High675.80.8878
Predominantly Upwind697.10.8607
Predominantly Downwind618.90.9694
Predominantly Upwind Low879.70.6821
Predominantly Upwind Medium731.90.8197
Predominantly Upwind High697.90.8598
Predominantly Downwind Low826.50.7260
Predominantly Downwind Medium616.20.9738
Predominantly Downwind High468.71.2802
Chicago-Mac Upwind0.8474
Chicago-Mac All Purpose0.8961
Chicago-Mac Downwind0.9523
Bayview-Mac Cove Island0.8414
Bayview-Mac Shore0.8421
Harvest Moon Regatta523.81.1455
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy659.40.9100
San Francisco Bay Medium759.10.7904
Predominantly Reaching592.51.0126
Predominantly Reaching Low707.80.8477
Predominantly Reaching Medium590.91.0155
Predominantly Reaching High494.71.2127
Windward/Leeward 60-40 Low1002.10.5988
Windward/Leeward 60-40 Medium812.10.7389
Windward/Leeward 60-40 High738.30.8127
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1069.20.5612
5-Band Low / Medium916.60.6546
5-Band Medium768.50.7807
5-Band Medium / High694.00.8645
5-Band High633.90.9466
ORC Ref  03190002NSSIssued on 07/06/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

STAMURA SAILOR PROJECT

ITA-3121SB3

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)
ClassSB20 ONE DESIGNMeasurement16/03/2012HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA6.141Max. Beam2.148Draft1.509Displacement696Wetted area8.29IMS L5.905LSM05.626Acc. length6.141Sink (kg/mm) 6.39
VCGD-0.208VCGM-0.187RM Rated (kg·m) 15.3Limit of positive stability(°) 111.7Stability Index102.6
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P8.040IG7.382ISP9.038MDT10.072MDL10.102MDT20.070MDL20.082TL1.400MW0.090GO0.145
E3.320J2.193BAS1.016FSD0.000SFJ0.096SPLWPLTPS4.080BD0.140MWT31.10MCG3.290
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date18/05/2016MeasurerComment
SFFP0.270FFM0.705FF0.705LCFcl3.471SG1.0260
SAFP6.071FAM0.472FA0.472LCFsh3.637HBI0.588
W117.9W217.9W317.9W417.9
PD1568.3PD2566.3PD3569.1PD4565.9
WD6.160PLM9000.00GSA1.0RSA1.0RM15.3
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGAEngineOUTBOARD ENGINE Min. 12 KgTotal deductible
ORC Ref  03190002NSSIssued on 07/06/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
One Design
 Certificate
2023

Boat

STAMURA SAILOR PROJECT

ITA-3121SB3

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.230.811.432.322.9016.91* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.040.420.721.321.842.227.13NoNo 8.86
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentORC10.558.559.555.645.40104%44.50* Copied from legacy *
ORC Ref  03190002NSSIssued on 07/06/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org