Club Certificate2025
BLACK MAGICGBR 4947R
ORC
Central Rating Office
Issuing certificates for
Ireland
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 Angles42.6°42.6°40.4°38.9°37.9°37.3°37.0°36.7°38.0°
Beat VMG2.813.874.715.265.555.705.795.895.86
52°4.375.876.927.557.847.978.068.178.20
60°4.646.177.187.768.048.188.288.398.44
75°4.846.387.367.918.238.458.598.788.87
90°4.656.327.488.018.278.568.819.159.37
110°4.786.487.698.318.718.999.239.639.98
120°4.636.347.608.268.739.169.5310.0710.59
135°4.015.677.047.908.438.909.3810.4712.03
150°3.364.765.987.057.858.338.729.5610.68
Run VMG2.914.125.186.106.827.307.718.419.25
Gybe Angles142.1°142.1°145.8°148.5°152.3°155.7°160.5°161.8°144.5°
APH ToD:500.0CDL: 11.317APH ToT: 1.1999CertNo:
BOAT
ClassFirst 44.7DesignerFarrBuilderBeneteauAge date04/2004Series date01/2003Offset fileFIRST447-DK.offData fileGBR4947R
HULL
Length Overall13.352 mMaximum Beam3.968 mDraft2.647 mDisplacement10,010 kgDLR6.1917IMS DivisionCruiser/RacerDynamic Allowance0.130%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.490m
CREW
Maximum weight1,020 kg(declared)Minimum weight867 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail63.3564.51Headsail Luffed44.8444.84Headsail FlyingSymmetricAsymmetric177.04177.04 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail18.92Storm Jib15.48Heavy Weather Jib41.78
SAIL LIMITS
Headsails7Spinnakers5
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
BLACK MAGICGBR 4947R
ORC
Central Rating Office
Issuing certificates for
Ireland
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 VMG1283.3929.5764.7683.8649.0632.0621.8610.8614.2
52°824.7613.3519.9476.8459.2451.5446.5440.7439.0
60°775.6583.4501.2464.0447.5439.9435.0428.9426.7
75°744.0564.2489.1455.3437.3426.2419.2410.2405.7
90°773.4569.9481.4449.7435.3420.5408.8393.4384.3
110°753.0555.2468.4433.3413.1400.3390.2373.9360.8
120°778.1567.8474.0435.8412.3393.1377.6357.4340.0
135°896.8634.7511.7455.7427.2404.6383.8343.8299.3
150°1070.9756.8602.4511.0458.8432.4412.6376.7337.1
Run VMG1236.9873.8695.6590.1527.6493.3467.2428.0389.2
Selected Courses
Windward / Leeward1259.9901.7730.2636.9588.3562.7544.5519.4501.7
All purpose958.0695.4573.7513.9483.6465.7452.6433.1418.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward614.90.9757
All purpose500.01.1999
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8586
Downwind "popa"1.0305
70% up, 30% down "Ilhabela"0.9038
30% up, 70% down "Ilhabela-inverso"0.9721
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Predominantly Upwind541.41.1083
Predominantly Downwind505.81.1862
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low634.50.9456
Triple Number AP Medium496.81.2078
Triple Number AP High448.61.3376
Triple Number Windward/Leeward Low851.00.7050
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Single Number Predominant Upwind562.91.0660
Single Number Predominant Reaching497.51.2061
Single Number Predominant Downwind527.41.1376
Predominant Upwind - Low768.20.7811
Predominant Upwind - Low/Med590.11.0168
Predominant Upwind - Medium525.31.1423
Predominant Upwind - Med/High493.21.2165
Predominant Upwind - High477.51.2566
Predominant Downwind Low760.70.7888
Predominant Downwind Low/Med567.31.0576
Predominant Downwind Medium489.31.2262
Predominant Downwind Med/High441.81.3582
Predominant Downwind High410.41.4620
Predominant Reaching Low682.40.8793
Predominant Reaching Low/Med524.31.1443
Predominant Reaching Medium466.51.2862
Predominant Reaching Med/High431.61.3901
Predominant Reaching High408.71.4681
SA/DSPL Upwind23.12SA/DSPL Downwind51.36
Scoring OptionTODTOT
5-Band Windward/Leeward Low948.40.6326
5-Band Windward/Leeward Low/Med701.60.8552
5-Band Windward/Leeward Medium600.30.9996
5-Band Windward/Leeward Med/High547.01.0968
5-Band Windward/Leeward High520.71.1523
Windward/Leeward 60-40 Low954.10.6289
Windward/Leeward 60-40 Low/Med710.00.8451
Windward/Leeward 60-40 Medium612.10.9803
Windward/Leeward 60-40 Med/High562.41.0668
Windward/Leeward 60-40 High539.21.1127
5-Band AP Low698.60.8589
5-Band AP Low/Med557.21.0768
5-Band AP Medium490.51.2232
5-Band AP Med/High454.11.3213
5-Band AP High433.91.3828
5-Band SF Bay Tour - Low819.40.7322
5-Band SF Bay Tour - Low/Med670.40.8949
5-Band SF Bay Tour - Medium578.61.0371
5-Band SF Bay Tour - Med/High530.61.1309
5-Band SF Bay Tour - High505.91.1861
Chicago-Mac Upwind1.0354
Chicago-Mac All Purpose1.0694
Chicago-Mac Downwind1.0987
Bayview-Mac Cove Island0.7896
Bayview-Mac Shore0.7945
Harvest Moon Regatta437.11.3727
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance543.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating543.61.1039
FinRating, kevyt tuuli930.51.0747
FinRating, kova tuuli437.11.1439
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.1039
Triple Number Coastal/Long Distance Low0.9456
Triple Number Coastal/Long Distance Medium1.2080
Triple Number Coastal/Long Distance High1.3376
Triple Number Windward/Leeward Low0.7354
Triple Number Windward/Leeward Medium0.9837
Triple Number Windward/Leeward High1.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
For information
General Purpose Handicap (GPH)559.4
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low634.5
Triple Number Coastal/Long Distance Medium496.7
Triple Number Coastal/Long Distance High448.6
Triple Number Windward/Leeward Low815.9
Triple Number Windward/Leeward Medium609.9
Triple Number Windward/Leeward High539.6
Predominantly Upwind541.4
Predominantly Downwind505.8
Predominantly Reaching485.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9456
Triple Number Coastal/Long Distance Medium1.2080
Triple Number Coastal/Long Distance High1.3376
Triple Number Windward/Leeward Low0.7354
Triple Number Windward/Leeward Medium0.9837
Triple Number Windward/Leeward High1.1119
Coastal/Long Distance1.1039
Predominantly Upwind1.1083
Predominantly Downwind1.1862
For information
General Purpose Handicap (GPH)559.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1999
Distanseseilas Trippeltall svak vind0.9456
Distanseseilas Trippeltall mellomvind1.2080
Distanseseilas Trippeltall sterk vind1.3376
Pølsebane Trippeltall svak vind0.7354
Pølsebane Trippeltall mellomvind0.9837
Pølsebane Trippeltall sterk vind1.1119
Motvind Singeltall1.1083
Medvind Singeltall1.1862
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Coastal/Long Distance543.61.1039
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind541.41.1083
Predominantly Downwind505.81.1862
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore507.01.1834
Cape Doctor Coastal422.61.4197
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9456
Triple Number Coastal/Long Distance Medium1.2080
Triple Number Coastal/Long Distance High1.3376
Triple Number Windward/Leeward Low0.7354
Triple Number Windward/Leeward Medium0.9837
Triple Number Windward/Leeward High1.1119
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9456
Triple Number Coastal/Long Distance Medium1.2080
Triple Number Coastal/Long Distance High1.3376
Triple Number Windward/Leeward Low0.7354
Triple Number Windward/Leeward Medium0.9837
Triple Number Windward/Leeward High1.1119
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Predominantly Upwind541.41.1083
Predominantly Downwind505.81.1862
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance543.61.1039
Triple Number Coastal/Long Distance Low634.50.9456
Triple Number Coastal/Long Distance Medium496.71.2080
Triple Number Coastal/Long Distance High448.61.3376
Triple Number Windward/Leeward Low815.90.7354
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1333.5898.9687.1576.4515.2482.9456.8416.8402.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low634.50.9456
Triple Number AP Medium496.81.2078
Triple Number AP High448.61.3376
Triple Number Windward/Leeward Low851.00.7050
Triple Number Windward/Leeward Medium609.90.9837
Triple Number Windward/Leeward High539.61.1119
Single Number Predominant Upwind562.91.0660
Single Number Predominant Reaching497.51.2061
Single Number Predominant Downwind527.41.1376
Predominant Upwind - Low768.20.7811
Predominant Upwind - Low/Med590.11.0168
Predominant Upwind - Medium525.31.1423
Predominant Upwind - Med/High493.21.2165
Predominant Upwind - High477.51.2566
Predominant Downwind Low760.70.7888
Predominant Downwind Low/Med567.31.0576
Predominant Downwind Medium489.31.2262
Predominant Downwind Med/High441.81.3582
Predominant Downwind High410.41.4620
Predominant Reaching Low682.40.8793
Predominant Reaching Low/Med524.31.1443
Predominant Reaching Medium466.51.2862
Predominant Reaching Med/High431.61.3901
Predominant Reaching High408.71.4681
SA/DSPL Upwind23.12SA/DSPL Downwind51.36
Scoring OptionTODTOT
5-Band Windward/Leeward Low948.40.6326
5-Band Windward/Leeward Low/Med701.60.8552
5-Band Windward/Leeward Medium600.30.9996
5-Band Windward/Leeward Med/High547.01.0968
5-Band Windward/Leeward High520.71.1523
Windward/Leeward 60-40 Low954.10.6289
Windward/Leeward 60-40 Low/Med710.00.8451
Windward/Leeward 60-40 Medium612.10.9803
Windward/Leeward 60-40 Med/High562.41.0668
Windward/Leeward 60-40 High539.21.1127
5-Band AP Low698.60.8589
5-Band AP Low/Med557.21.0768
5-Band AP Medium490.51.2232
5-Band AP Med/High454.11.3213
5-Band AP High433.91.3828
5-Band SF Bay Tour - Low819.40.7322
5-Band SF Bay Tour - Low/Med670.40.8949
5-Band SF Bay Tour - Medium578.61.0371
5-Band SF Bay Tour - Med/High530.61.1309
5-Band SF Bay Tour - High505.91.1861
Chicago-Mac Upwind1.0354
Chicago-Mac All Purpose1.0694
Chicago-Mac Downwind1.0987
Bayview-Mac Cove Island0.7896
Bayview-Mac Shore0.7945
Harvest Moon Regatta437.11.3727
Club Certificate2025
BLACK MAGICGBR 4947R
ORC
Central Rating Office
Issuing certificates for
Ireland
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFirst 44.7Measurement04/06/2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA13.352Max. Beam3.968Draft2.647Displacement10,010Wetted area36.96IMS L12.046LSM011.735Acc. length12.896Sink (kg/mm) 27.71
VCGD0.110VCGM0.129RM Rated (kg·m) 241.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight865Declared crew weight1,020
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.490PBW0.120PIPA0.0038
EDL2.650ST10.045ST20.170
ST30.170ST40.112ST50.295
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P17.380IG17.500ISP17.550MDT10.140MDL10.253MDT20.112MDL20.190TL1.500MW0.250GO0.275
E6.220J4.830BAS1.800FSD0.038SFJSPLWPLTPS6.700BD0.190MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered241.7Flotation Date04/06/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
BLACK MAGICGBR 4947R
ORC
Central Rating Office
Issuing certificates for
Ireland
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment01.182.183.8863.35IRC 2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.811.492.684.9917.18NoNo 44.84IRC 2025
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment021.2117.4119.3111.299.85115%177.04IRC 2025
CRUISER/RACER REQUIREMENTS*
Accommodation length12.9 mTable area0.66 m²Headroom1.85 mMinimum number of berths6Personal gear stowage0.24 m³Fresh water capacity207 lMinimum number of seats in cockpit6Food stowage0.36 m³Fuel capacity108 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.