Club
Certificate
Double Handed
2023

Boat

Tora

NOR 5801

Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles42.6°40.6°40.5°40.2°40.0°40.0°40.5°
Beat VMG3.263.864.204.364.444.484.47
52°4.915.706.126.326.406.456.48
60°5.155.926.316.516.606.666.70
75°5.326.086.476.696.846.937.03
90°5.246.056.506.776.967.127.34
110°5.176.136.646.957.207.377.60
120°5.016.026.596.937.227.487.90
135°4.515.546.296.737.067.388.01
150°3.814.855.726.366.767.087.71
Run VMG3.304.214.985.666.236.657.27
Gybe Angles145.7°150.7°154.1°161.3°175.4°179.0°179.0°

APH: 621.3

CDL: 7.405

GPH: 692.6

CertNo: 4826

BOAT
ClassMAMBA 33DesignerBengt KarlssonBuilderBK Marin ABAge date01/1987Series date01/1984Offset fileScale_mamba33.offData file4826
HULL
Length Overall9.850 mMaximum Beam3.266 mDraft1.751 mDisplacement4,643 kgDLR7.9208IMS DivisionCruiser/RacerDynamic Allowance0.340%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight170 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail29.5430.13Headsail Luffed29.3129.31Headsail FlyingSymmetric61.7861.78Asymmetric
STORM SAIL AREAS (m²)
Trysail8.47Storm Jib7.23Heavy Weather Jib19.50
SAIL LIMITS
Headsails5  Spinnakers4
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
Certificate
Double Handed
2023

Boat

Tora

NOR 5801

Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1106.0932.5857.2826.4811.3803.9805.9
52°732.7631.4587.9570.0562.2557.8555.3
60°699.2608.0570.2553.2545.5540.8537.2
75°677.3592.1556.0537.8526.5519.6512.1
90°687.5594.6553.7532.0517.1505.8490.7
110°696.8586.9542.0517.9500.2488.6473.5
120°718.4598.4546.4519.3498.7481.2455.9
135°798.8650.2572.2534.7509.6488.1449.7
150°945.9741.8629.1565.7532.4508.3467.1
Run VMG1092.2856.1722.9636.3577.5541.2495.1
Selected Courses
Windward / Leeward1099.1894.3790.1731.4694.4672.6650.5
All purpose849.1706.2637.6601.8580.4566.5549.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward760.50.7890
All purpose621.30.9657
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6837
Downwind "popa"0.8534
70% up, 30% down "Ilhabela"0.7271
30% up, 70% down "Ilhabela-inverso"0.7943
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Predominantly Upwind673.50.8908
Predominantly Downwind624.20.9612
Custom scoring options for Canada
Scoring OptionTime On
Distance
Time On
Time
Triple Number All Purpose Low777.60.7716
Triple Number All Purpose Medium617.10.9723
Triple Number All Purpose High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Predominantly Upwind673.50.8908
Predominantly Downwind624.20.9612
Predominantly Upwind Low861.30.6966
Predominantly Upwind Medium699.50.8577
Predominantly Upwind High666.60.9001
Predominantly Downwind Low851.50.7046
Predominantly Downwind Medium615.80.9743
Predominantly Downwind High520.41.1529
Chicago-Mac Upwind0.8755
Chicago-Mac All Purpose0.9072
Chicago-Mac Downwind0.9447
Bayview-Mac Cove Island0.8520
Bayview-Mac Shore0.8576
Scoring OptionTime On
Distance
Time On
Time
Predominantly Reaching589.81.0173
Predominantly Reaching Low708.00.8475
Predominantly Reaching Medium583.01.0292
Predominantly Reaching High524.71.1435
5-Band
Windward/Leeward
Time On
Distance
Time On
Time
5-Band Low1083.30.5539
5-Band Low / Medium916.80.6544
5-Band Medium743.60.8069
5-Band Medium / High677.50.8857
5-Band High654.30.9170
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance674.7
Triple Number Coastal/Long Distance Low777.6
Triple Number Coastal/Long Distance Medium617.1
Triple Number Coastal/Long Distance High563.5
Triple Number Windward/Leeward Low996.7
Triple Number Windward/Leeward Medium755.3
Triple Number Windward/Leeward High669.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7716
Triple Number Coastal/Long Distance Medium0.9723
Triple Number Coastal/Long Distance High1.0648
Triple Number Windward/Leeward Low0.6020
Triple Number Windward/Leeward Medium0.7944
Triple Number Windward/Leeward High0.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low777.6
Triple Number Coastal/Long Distance Medium617.1
Triple Number Coastal/Long Distance High563.5
Triple Number Windward/Leeward Low996.7
Triple Number Windward/Leeward Medium755.3
Triple Number Windward/Leeward High669.7
Predominantly Upwind673.5
Predominantly Downwind624.2
Predominantly Reaching601.7
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7716
Triple Number Coastal/Long Distance Medium0.9723
Triple Number Coastal/Long Distance High1.0648
Triple Number Windward/Leeward Low0.6020
Triple Number Windward/Leeward Medium0.7944
Triple Number Windward/Leeward High0.8959
Coastal/Long Distance0.8893
Predominantly Upwind0.8908
Predominantly Downwind0.9612
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7716
Tretall Distanseseilas Mellomvind0.9723
Tretall Distanseseilas Mye vind1.0648
Tretall Pølsebane Lite vind0.6020
Tretall Pølsebane Mellomvind0.7944
Tretall Pølsebane Mye vind0.8959
Distanseseilas ett tall (OSN 8-16kn)0.8893
Distanseseilas ett tall (APH 6-20kn)0.9657
Enkeltall Motvind0.8908
Enkeltall Medvind0.9612
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Coastal/Long Distance674.70.8893
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind673.50.8908
Predominantly Downwind624.20.9612
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore657.10.9131
Cape Doctor Coastal554.41.0822
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7716
Triple Number Coastal/Long Distance Medium0.9723
Triple Number Coastal/Long Distance High1.0648
Triple Number Windward/Leeward Low0.6020
Triple Number Windward/Leeward Medium0.7944
Triple Number Windward/Leeward High0.8959
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7716
Triple Number Coastal/Long Distance Medium0.9723
Triple Number Coastal/Long Distance High1.0648
Triple Number Windward/Leeward Low0.6020
Triple Number Windward/Leeward Medium0.7944
Triple Number Windward/Leeward High0.8959
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Predominantly Upwind673.50.8908
Predominantly Downwind624.20.9612
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance674.70.8893
Triple Number Coastal/Long Distance Low777.60.7716
Triple Number Coastal/Long Distance Medium617.10.9723
Triple Number Coastal/Long Distance High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1098.4842.6714.9642.3602.2571.4523.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance
Time On
Time
Triple Number All Purpose Low777.60.7716
Triple Number All Purpose Medium617.10.9723
Triple Number All Purpose High563.51.0648
Triple Number Windward/Leeward Low996.70.6020
Triple Number Windward/Leeward Medium755.30.7944
Triple Number Windward/Leeward High669.70.8959
Predominantly Upwind673.50.8908
Predominantly Downwind624.20.9612
Predominantly Upwind Low861.30.6966
Predominantly Upwind Medium699.50.8577
Predominantly Upwind High666.60.9001
Predominantly Downwind Low851.50.7046
Predominantly Downwind Medium615.80.9743
Predominantly Downwind High520.41.1529
Chicago-Mac Upwind0.8755
Chicago-Mac All Purpose0.9072
Chicago-Mac Downwind0.9447
Bayview-Mac Cove Island0.8520
Bayview-Mac Shore0.8576
Harvest Moon Regatta540.91.1092
Scoring OptionTime On
Distance
Time On
Time
San Francisco Bay Heavy661.00.9078
San Francisco Bay Medium748.70.8014
Predominantly Reaching589.81.0173
Predominantly Reaching Low708.00.8475
Predominantly Reaching Medium583.01.0292
Predominantly Reaching High524.71.1435
Windward/Leeward 60-40 Low1001.20.5993
Windward/Leeward 60-40 Medium784.70.7646
Windward/Leeward 60-40 High716.20.8377
5-Band
Windward/Leeward
Time On
Distance
Time On
Time
5-Band Low1083.30.5539
5-Band Low / Medium916.80.6544
5-Band Medium743.60.8069
5-Band Medium / High677.50.8857
5-Band High654.30.9170

Club
Certificate
Double Handed
2023

Boat

Tora

NOR 5801

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMAMBA 33MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.850Max. Beam3.266Draft1.751Displacement4,643Wetted area20.87IMS L8.280LSM08.368Acc. length9.850Sink (kg/mm) 15.21
VCGD0.075VCGM0.042RM Rated (kg·m) 78.0Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0032
EDL0.600ST10.048ST20.170
ST30.170ST40.170ST50.250
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P12.250IG11.936ISP11.915MDT10.115MDL10.180MDT20.115MDL20.155TL0.000MW0.180GO0.205
E3.947J3.705BAS1.450FSD0.000SFJ0.000SPL3.663WPLTPS0.000BDMWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.075Flotation Date01/01/2015MeasurerComment
SFFP0.582FFMFF1.050LCFcl5.884SG1.0000
SAFP9.268FAMFA0.920LCFsh6.101HBI0.953
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
Double Handed
2023

Boat

Tora

NOR 5801

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment400-2007042014400.150.001.562.633.3429.5420/04/2007
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment624-2021042221540.060.621.202.503.875.3511.37NoNo 29.3122/04/2021Gamle forseil, som ble trimmet i Italia og har derfor fått nye mål400-2007042014420.000.000.000.000.003.9811.45NoNo 23.2020/04/2007
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment398-20080526150011.1711.1711.170.006.5161.7826/05/2008315-20120504135211.3011.3011.306.286.2058.9904/05/2012