International
Certificate
2023

Boat

RED MAMBA

ITA-14977

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°39.6°38.8°38.8°39.6°40.0°41.4°
Beat VMG3.724.364.564.634.654.654.58
52°5.606.356.566.666.716.746.72
60°5.876.576.796.916.997.047.05
75°6.046.747.127.327.477.577.67
90°5.956.717.267.687.958.158.39
110°5.976.887.437.818.188.629.46
120°5.816.807.518.158.649.1410.05
135°5.226.387.127.878.819.8711.61
150°4.395.546.457.107.778.5910.99
Run VMG3.804.805.606.246.827.449.52
Gybe Angles142.6°146.9°152.9°159.2°165.8°149.6°143.1°

APH: 559.9

CDL: 7.652

GPH: 620.3

CertNo: 23/2

BOAT
ClassPortobello 28 QBDesignerJudel/VrolijkBuilderMarenaAge date01/2004Series date01/2004Offset fileI14977C.offData fileI14977
HULL
Length Overall8.509 mMaximum Beam2.474 mDraft2.027 mDisplacement1,549 kgDLR3.5022IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight300 kgMinimum weight215 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail27.8628.78Headsail Luffed17.9517.95Headsail FlyingSymmetric57.1057.10Asymmetric60.1660.16 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail7.39Storm Jib5.21Heavy Weather Jib14.07
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric may be tacked on the pole
STABILITY
Righting Moment42.7 kg·mStability Index106.3
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  03190002F3NIssued on 31/03/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

RED MAMBA

ITA-14977

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 VMG966.9825.0789.6777.6774.0774.8786.4
52°642.3566.8548.9540.8536.3534.1535.9
60°613.6548.1530.2521.0515.1511.3510.8
75°596.0534.3505.7491.6482.2475.4469.1
90°605.2536.1496.1468.5453.0441.8429.0
110°603.4523.6484.4460.7440.2417.5380.7
120°619.3529.5479.2441.8416.6394.0358.3
135°690.1563.9505.8457.2408.6364.6310.0
150°819.7649.6558.1507.2463.5419.0327.5
Run VMG946.5750.0643.1577.0528.1483.8378.2
Selected Courses
Windward / Leeward956.7787.5716.3677.3651.0629.3582.3
All purpose739.9625.7577.2548.4527.4509.1479.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward695.30.8629
All purpose559.91.0717
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7376
Downwind "popa"0.9752
70% up, 30% down "Ilhabela"0.7958
30% up, 70% down "Ilhabela-inverso"0.8893
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Predominantly Upwind615.20.9752
Predominantly Downwind550.11.0908
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low682.70.8788
Triple Number All Purpose Medium559.21.0730
Triple Number All Purpose High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Predominantly Upwind615.20.9752
Predominantly Downwind550.11.0908
Predominantly Upwind Low757.30.7923
Predominantly Upwind Medium648.30.9255
Predominantly Upwind High631.40.9502
Predominantly Downwind Low743.80.8066
Predominantly Downwind Medium545.91.0990
Predominantly Downwind High433.11.3855
Chicago-Mac Upwind0.9586
Chicago-Mac All Purpose1.0109
Chicago-Mac Downwind1.0696
Bayview-Mac Cove Island0.9584
Bayview-Mac Shore0.9611
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching522.71.1480
Predominantly Reaching Low622.40.9640
Predominantly Reaching Medium519.41.1551
Predominantly Reaching High450.51.3320
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low943.70.6358
5-Band Low / Medium810.90.7399
5-Band Medium684.50.8765
5-Band Medium / High629.00.9538
5-Band High590.41.0162
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance607.8
Triple Number Coastal/Long Distance Low682.7
Triple Number Coastal/Long Distance Medium559.2
Triple Number Coastal/Long Distance High502.4
Triple Number Windward/Leeward Low872.1
Triple Number Windward/Leeward Medium692.9
Triple Number Windward/Leeward High617.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8788
Triple Number Coastal/Long Distance Medium1.0730
Triple Number Coastal/Long Distance High1.1942
Triple Number Windward/Leeward Low0.6880
Triple Number Windward/Leeward Medium0.8659
Triple Number Windward/Leeward High0.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low682.7
Triple Number Coastal/Long Distance Medium559.2
Triple Number Coastal/Long Distance High502.4
Triple Number Windward/Leeward Low872.1
Triple Number Windward/Leeward Medium692.9
Triple Number Windward/Leeward High617.1
Predominantly Upwind615.2
Predominantly Downwind550.1
Predominantly Reaching530.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8788
Triple Number Coastal/Long Distance Medium1.0730
Triple Number Coastal/Long Distance High1.1942
Triple Number Windward/Leeward Low0.6880
Triple Number Windward/Leeward Medium0.8659
Triple Number Windward/Leeward High0.9723
Coastal/Long Distance0.9872
Predominantly Upwind0.9752
Predominantly Downwind1.0908
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8788
Tretall Distanseseilas Mellomvind1.0730
Tretall Distanseseilas Mye vind1.1942
Tretall Pølsebane Lite vind0.6880
Tretall Pølsebane Mellomvind0.8659
Tretall Pølsebane Mye vind0.9723
Distanseseilas ett tall (OSN 8-16kn)0.9872
Distanseseilas ett tall (APH 6-20kn)1.0717
Enkeltall Motvind0.9752
Enkeltall Medvind1.0908
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Coastal/Long Distance607.80.9872
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind615.20.9752
Predominantly Downwind550.11.0908
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore596.41.0061
Cape Doctor Coastal488.11.2292
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8788
Triple Number Coastal/Long Distance Medium1.0730
Triple Number Coastal/Long Distance High1.1942
Triple Number Windward/Leeward Low0.6880
Triple Number Windward/Leeward Medium0.8659
Triple Number Windward/Leeward High0.9723
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8788
Triple Number Coastal/Long Distance Medium1.0730
Triple Number Coastal/Long Distance High1.1942
Triple Number Windward/Leeward Low0.6880
Triple Number Windward/Leeward Medium0.8659
Triple Number Windward/Leeward High0.9723
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Predominantly Upwind615.20.9752
Predominantly Downwind550.11.0908
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance607.80.9872
Triple Number Coastal/Long Distance Low682.70.8788
Triple Number Coastal/Long Distance Medium559.21.0730
Triple Number Coastal/Long Distance High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance955.7743.2647.2587.2548.7513.5452.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low682.70.8788
Triple Number All Purpose Medium559.21.0730
Triple Number All Purpose High502.41.1942
Triple Number Windward/Leeward Low872.10.6880
Triple Number Windward/Leeward Medium692.90.8659
Triple Number Windward/Leeward High617.10.9723
Predominantly Upwind615.20.9752
Predominantly Downwind550.11.0908
Predominantly Upwind Low757.30.7923
Predominantly Upwind Medium648.30.9255
Predominantly Upwind High631.40.9502
Predominantly Downwind Low743.80.8066
Predominantly Downwind Medium545.91.0990
Predominantly Downwind High433.11.3855
Chicago-Mac Upwind0.9586
Chicago-Mac All Purpose1.0109
Chicago-Mac Downwind1.0696
Bayview-Mac Cove Island0.9584
Bayview-Mac Shore0.9611
Harvest Moon Regatta469.41.2782
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy601.60.9973
San Francisco Bay Medium677.40.8857
Predominantly Reaching522.71.1480
Predominantly Reaching Low622.40.9640
Predominantly Reaching Medium519.41.1551
Predominantly Reaching High450.51.3320
Windward/Leeward 60-40 Low876.90.6842
Windward/Leeward 60-40 Medium724.10.8286
Windward/Leeward 60-40 High672.20.8926
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low943.70.6358
5-Band Low / Medium810.90.7399
5-Band Medium684.50.8765
5-Band Medium / High629.00.9538
5-Band High590.41.0162
ORC Ref  03190002F3NIssued on 31/03/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

RED MAMBA

ITA-14977

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)
ClassPortobello 28 QBMeasurement18/06/2022HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.509Max. Beam2.474Draft2.027Displacement1,549Wetted area14.38IMS L7.927LSM07.618Acc. length8.040Sink (kg/mm) 11.28
VCGD0.024VCGM0.016RM Rated (kg·m) 42.7Limit of positive stability(°) 111.6Stability Index106.3
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P10.520IG10.155ISP11.840MDT10.081MDL10.130MDT20.075MDL20.090TL1.350MW0.130GO0.146
E4.010J3.180BAS1.270FSD0.022SFJ0.060SPL3.230WPLTPS4.020BD0.110MWT55.00MCG4.310
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date27/03/2018MeasurerFIV-120CommentLavagna
SFFP0.214FFM0.964FF0.965LCFcl4.699SG1.0260
SAFP8.507FAM0.769FA0.769LCFsh4.856HBI0.811
W135.0W235.0W335.0W435.0
PD1527.5PD2528.0PD3527.3PD4527.0
WD8.170PLM9000.00GSA1.0RSA1.0RM42.7
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGAgasoline pvcFuel1233.600.00Total deductible33.600.00
OTHER ITEMSIdKindDescriptionWeightLCGVCGAMiscellaneousYamaha 6 hp cockpit compartment (residual water)05.340.00Total deductible0
ORC Ref  03190002F3NIssued on 31/03/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

International
Certificate
2023

Boat

RED MAMBA

ITA-14977

FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentE0.931.321.892.793.4927.8617/11/2017
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG0.100.530.981.802.573.3610.20YesNo 17.9517/11/2017
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentF11.5211.5211.526.005.7457.1017/11/2017
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentB12.7210.1111.426.206.8291%60.1618/06/2022
ORC Ref  03190002F3NIssued on 31/03/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org