Club Certificate2025
Mambo IBUL 551
ORC Bulgaria
Varna
Mosrka Gara 1
orcratingbulgaria@gmail.com
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 Angles48.7°48.7°47.2°46.4°45.2°44.3°43.9°43.9°45.2°
Beat VMG2.032.883.614.164.594.895.055.135.01
52°3.284.635.746.527.087.447.667.787.74
60°6.056.616.206.947.447.777.988.148.16
75°3.965.406.497.247.748.068.288.588.70
90°3.865.306.427.257.858.198.388.799.10
110°3.795.336.617.538.108.498.809.349.65
120°3.675.176.447.418.048.458.809.4410.06
135°3.244.645.886.887.668.188.569.2810.05
150°2.673.935.126.157.027.708.188.879.56
Run VMG2.313.414.435.336.126.817.398.248.87
Gybe Angles145.8°145.8°148.8°151.9°154.6°159.4°164.6°176.3°177.2°
APH ToD:570.5CDL: 9.838APH ToT: 1.0517CertNo:056/25
BOAT
ClassBavaria 47DesignerJakopinBuilderBavaria YachtsAge date12/2002Series date07/2002Offset fileBA47SDCL.OFFData fileBUL551
HULL
Length Overall14.350 mMaximum Beam4.468 mDraft1.688 mDisplacement12,001 kgDLR6.5310IMS DivisionCruiser/RacerDynamic Allowance0.420%Age Allowance0.487%
PROPELLER
InstallationStrutTypeSolid 3 bladesDiameter0.430m
CREW
Maximum weight919 kg(default)Minimum weight781 kg ✱ when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail37.3037.24Headsail Luffed61.1261.12Headsail FlyingSymmetric118.44121.35Asymmetric
STORM SAIL AREAS (m²)
Trysail13.26Storm Jib13.86Heavy Weather Jib37.41
SAIL LIMITS
Headsails6
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers5
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.
Club Certificate2025
Mambo IBUL 551
ORC Bulgaria
Varna
Mosrka Gara 1
orcratingbulgaria@gmail.com
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 VMG1776.91249.8997.0864.9784.9736.1712.4702.1718.2
52°1096.1778.0627.4552.0508.3483.7470.2462.7465.2
60°594.8544.6581.1518.5483.6463.2451.1442.4441.1
75°908.7666.3554.9497.0465.2446.6434.5419.8414.0
90°931.5678.9560.9496.5458.9439.8429.5409.6395.8
110°949.1675.2544.7478.2444.3424.2408.9385.6373.1
120°980.7696.0559.1486.0447.8425.8409.2381.2358.0
135°1112.3775.9612.4523.2469.9440.1420.4387.9358.3
150°1347.8915.5703.1585.5512.8467.4440.3405.7376.6
Run VMG1555.81057.1811.8675.1588.4528.8487.2437.0405.8
Selected Courses
Windward / Leeward1665.61153.5904.4770.0686.7632.5599.8569.5562.0
All purpose1209.2862.0694.6600.5544.6510.4490.0468.1458.8
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward723.10.8298
All purpose570.51.0517
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6945
Downwind "popa"0.9159
70% up, 30% down "Ilhabela"0.7488
30% up, 70% down "Ilhabela-inverso"0.8360
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Predominantly Upwind630.80.9511
Predominantly Downwind574.51.0444
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low778.30.7709
Triple Number AP Medium567.31.0577
Triple Number AP High486.91.2323
Triple Number Windward/Leeward Low1079.20.5559
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Single Number Predominant Upwind662.50.9056
Single Number Predominant Reaching566.41.0593
Single Number Predominant Downwind604.20.9931
Predominant Upwind - Low987.30.6077
Predominant Upwind - Low/Med718.50.8350
Predominant Upwind - Medium604.10.9932
Predominant Upwind - Med/High542.51.1060
Predominant Upwind - High523.61.1460
Predominant Downwind Low939.60.6386
Predominant Downwind Low/Med668.10.8981
Predominant Downwind Medium548.01.0948
Predominant Downwind Med/High476.21.2601
Predominant Downwind High442.21.3570
Predominant Reaching Low842.80.7119
Predominant Reaching Low/Med615.70.9744
Predominant Reaching Medium518.31.1576
Predominant Reaching Med/High464.41.2921
Predominant Reaching High440.21.3632
SA/DSPL Upwind18.62SA/DSPL Downwind29.47
Scoring OptionTODTOT
5-Band Windward/Leeward Low1219.40.4920
5-Band Windward/Leeward Low/Med861.60.6964
5-Band Windward/Leeward Medium702.30.8543
5-Band Windward/Leeward Med/High607.50.9876
5-Band Windward/Leeward High573.51.0463
Windward/Leeward 60-40 Low1239.20.4842
Windward/Leeward 60-40 Low/Med880.50.6814
Windward/Leeward 60-40 Medium722.20.8308
Windward/Leeward 60-40 Med/High630.20.9521
Windward/Leeward 60-40 High600.10.9998
5-Band AP Low847.00.7084
5-Band AP Low/Med663.90.9037
5-Band AP Medium556.11.0789
5-Band AP Med/High494.31.2138
5-Band AP High470.31.2758
5-Band SF Bay Tour - Low1045.70.5738
5-Band SF Bay Tour - Low/Med825.30.7270
5-Band SF Bay Tour - Medium677.70.8853
5-Band SF Bay Tour - Med/High592.51.0126
5-Band SF Bay Tour - High563.01.0658
Chicago-Mac Upwind0.8672
Chicago-Mac All Purpose0.9111
Chicago-Mac Downwind0.9499
Bayview-Mac Cove Island0.6330
Bayview-Mac Shore0.6372
Harvest Moon Regatta475.11.2629
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance627.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating627.50.9562
FinRating, kevyt tuuli1182.30.8458
FinRating, kova tuuli472.61.0581
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9562
Triple Number Coastal/Long Distance Low0.7709
Triple Number Coastal/Long Distance Medium1.0579
Triple Number Coastal/Long Distance High1.2323
Triple Number Windward/Leeward Low0.5831
Triple Number Windward/Leeward Medium0.8345
Triple Number Windward/Leeward High1.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
For information
General Purpose Handicap (GPH)649.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low778.3
Triple Number Coastal/Long Distance Medium567.2
Triple Number Coastal/Long Distance High486.9
Triple Number Windward/Leeward Low1029.0
Triple Number Windward/Leeward Medium719.0
Triple Number Windward/Leeward High596.6
Predominantly Upwind630.8
Predominantly Downwind574.5
Predominantly Reaching549.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7709
Triple Number Coastal/Long Distance Medium1.0579
Triple Number Coastal/Long Distance High1.2323
Triple Number Windward/Leeward Low0.5831
Triple Number Windward/Leeward Medium0.8345
Triple Number Windward/Leeward High1.0057
Coastal/Long Distance0.9562
Predominantly Upwind0.9511
Predominantly Downwind1.0444
For information
General Purpose Handicap (GPH)649.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0517
Distanseseilas Trippeltall svak vind0.7709
Distanseseilas Trippeltall mellomvind1.0579
Distanseseilas Trippeltall sterk vind1.2323
Pølsebane Trippeltall svak vind0.5831
Pølsebane Trippeltall mellomvind0.8345
Pølsebane Trippeltall sterk vind1.0057
Motvind Singeltall0.9511
Medvind Singeltall1.0444
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Coastal/Long Distance627.50.9562
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind630.80.9511
Predominantly Downwind574.51.0444
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore564.21.0634
Cape Doctor Coastal461.61.2998
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7709
Triple Number Coastal/Long Distance Medium1.0579
Triple Number Coastal/Long Distance High1.2323
Triple Number Windward/Leeward Low0.5831
Triple Number Windward/Leeward Medium0.8345
Triple Number Windward/Leeward High1.0057
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7709
Triple Number Coastal/Long Distance Medium1.0579
Triple Number Coastal/Long Distance High1.2323
Triple Number Windward/Leeward Low0.5831
Triple Number Windward/Leeward Medium0.8345
Triple Number Windward/Leeward High1.0057
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Predominantly Upwind630.80.9511
Predominantly Downwind574.51.0444
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance627.50.9562
Triple Number Coastal/Long Distance Low778.30.7709
Triple Number Coastal/Long Distance Medium567.21.0579
Triple Number Coastal/Long Distance High486.91.2323
Triple Number Windward/Leeward Low1029.00.5831
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1763.01143.8843.7684.6586.3530.8493.7442.3429.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low778.30.7709
Triple Number AP Medium567.31.0577
Triple Number AP High486.91.2323
Triple Number Windward/Leeward Low1079.20.5559
Triple Number Windward/Leeward Medium719.00.8345
Triple Number Windward/Leeward High596.61.0057
Single Number Predominant Upwind662.50.9056
Single Number Predominant Reaching566.41.0593
Single Number Predominant Downwind604.20.9931
Predominant Upwind - Low987.30.6077
Predominant Upwind - Low/Med718.50.8350
Predominant Upwind - Medium604.10.9932
Predominant Upwind - Med/High542.51.1060
Predominant Upwind - High523.61.1460
Predominant Downwind Low939.60.6386
Predominant Downwind Low/Med668.10.8981
Predominant Downwind Medium548.01.0948
Predominant Downwind Med/High476.21.2601
Predominant Downwind High442.21.3570
Predominant Reaching Low842.80.7119
Predominant Reaching Low/Med615.70.9744
Predominant Reaching Medium518.31.1576
Predominant Reaching Med/High464.41.2921
Predominant Reaching High440.21.3632
SA/DSPL Upwind18.62SA/DSPL Downwind29.47
Scoring OptionTODTOT
5-Band Windward/Leeward Low1219.40.4920
5-Band Windward/Leeward Low/Med861.60.6964
5-Band Windward/Leeward Medium702.30.8543
5-Band Windward/Leeward Med/High607.50.9876
5-Band Windward/Leeward High573.51.0463
Windward/Leeward 60-40 Low1239.20.4842
Windward/Leeward 60-40 Low/Med880.50.6814
Windward/Leeward 60-40 Medium722.20.8308
Windward/Leeward 60-40 Med/High630.20.9521
Windward/Leeward 60-40 High600.10.9998
5-Band AP Low847.00.7084
5-Band AP Low/Med663.90.9037
5-Band AP Medium556.11.0789
5-Band AP Med/High494.31.2138
5-Band AP High470.31.2758
5-Band SF Bay Tour - Low1045.70.5738
5-Band SF Bay Tour - Low/Med825.30.7270
5-Band SF Bay Tour - Medium677.70.8853
5-Band SF Bay Tour - Med/High592.51.0126
5-Band SF Bay Tour - High563.01.0658
Chicago-Mac Upwind0.8672
Chicago-Mac All Purpose0.9111
Chicago-Mac Downwind0.9499
Bayview-Mac Cove Island0.6330
Bayview-Mac Shore0.6372
Harvest Moon Regatta475.11.2629
Club Certificate2025
Mambo IBUL 551
ORC Bulgaria
Varna
Mosrka Gara 1
orcratingbulgaria@gmail.com
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassBavaria 47Measurement15/09/2012HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA14.350Max. Beam4.468Draft1.688Displacement12,001Wetted area39.69IMS L12.439LSM012.247Acc. length14.350Sink (kg/mm) 32.32
VCGD0.460VCGM0.351RM Rated (kg·m) 329.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight919Declared crew weightN/A
PROPELLER
Propeller TypeSolid 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.430PBWPIPA0.0224
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerIn mastArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P15.850IG16.645ISP17.050MDT10.120MDL10.250MDT20.120MDL20.250TL0.000MW0.250GO0.250
E4.780J5.900BAS1.832FSD0.040SFJ0.000SPL5.150WPLTPSBD0.200MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date14/04/2017
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Mambo IBUL 551
ORC Bulgaria
Varna
Mosrka Gara 1
orcratingbulgaria@gmail.com
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.060.591.152.323.5337.3015/09/2012
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.060.931.823.725.707.6216.20NoNo 61.1215/09/2012
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment016.6516.6516.658.608.28118.4420/09/2018
CRUISER/RACER REQUIREMENTS*
Accommodation length14.3 mTable area0.66 m²Headroom1.90 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity249 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity136 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.