Club
Certificate
2022

Boat

Tiimi

L-4949

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.0°41.4°41.8°41.4°40.8°40.8°41.7°
Beat VMG3.143.734.144.364.444.464.49
52°4.765.596.126.356.446.476.52
60°5.015.866.326.536.636.676.71
75°5.226.066.476.696.856.967.06
90°5.236.176.586.746.947.137.43
110°5.276.246.686.987.267.437.68
120°5.116.126.616.947.267.597.98
135°4.635.636.356.727.057.408.09
150°3.944.925.806.406.757.067.74
Run VMG3.414.275.045.736.296.667.26
Gybe Angles146.6°152.0°153.4°162.8°176.6°179.0°179.0°

APH: 620.7

CDL: 7.226

GPH: 692.6

CertNo:

BOAT
ClassInferno 31Designer Hakan SodergrenBuilderFinngulf MarinAge date01/1986Series date01/1986Offset fileL0009.BOFData fileFIN4949
HULL
Length Overall9.447 mMaximum Beam3.018 mDraft1.629 mDisplacement4,300 kgDLR8.6149IMS DivisionCruiser/RacerDynamic Allowance0.208%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.360m
CREW
Maximum weight260 kgMinimum weight175 kg * when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail30.4630.92Headsail Luffed22.3422.34Headsail FlyingSymmetric60.1860.18Asymmetric
STORM SAIL AREAS (m²)
Trysail9.29Storm Jib6.83Heavy Weather Jib18.44
SAIL LIMITS
Headsails5 * Woven polyester sails  Spinnakers4
STABILITY
Righting Moment70.3 kg·mStability 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.
ORC Ref  041400027JBIssued on 25/07/2022Valid until 31/12/2022
VPP ver: 2022 1.04 | © ORC | www.orc.org

Club
Certificate
2022

Boat

Tiimi

L-4949

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1148.0965.6870.4826.2810.9806.7801.2
52°756.1644.2587.9566.7559.3556.1551.9
60°718.0614.3569.8551.5543.2539.5536.8
75°689.3594.2556.8538.1525.6517.0510.0
90°688.9583.8546.9533.9519.0504.8484.4
110°683.6577.0539.1515.4495.7484.6468.6
120°705.0588.6544.3518.9495.7474.5451.0
135°778.2639.9567.3535.5510.9486.7444.8
150°913.6731.1620.8562.1533.3510.1465.4
Run VMG1055.0842.7714.1628.5572.5540.9496.1
Selected Courses
Windward / Leeward1101.5904.2792.2727.3691.7673.8648.7
All purpose851.3709.0637.4600.2579.2565.9545.8
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward760.30.7892
All purpose620.70.9666
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.6743
Downwind "popa"0.8660
70% up, 30% down "Ilhabela"0.7222
30% up, 70% down "Ilhabela-inverso"0.7979
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Predominantly Upwind676.10.8875
Predominantly Downwind621.50.9654
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low780.10.7691
Triple Number All Purpose Medium616.40.9734
Triple Number All Purpose High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Predominantly Upwind676.10.8875
Predominantly Downwind621.50.9654
Predominantly Upwind Low878.20.6832
Predominantly Upwind Medium702.40.8543
Predominantly Upwind High664.90.9023
Predominantly Downwind Low841.70.7128
Predominantly Downwind Medium611.20.9816
Predominantly Downwind High518.81.1564
Chicago-Mac Upwind0.8723
Chicago-Mac All Purpose0.9078
Chicago-Mac Downwind0.9502
Bayview-Mac Cove Island0.8497
Bayview-Mac Shore0.8530
Victoria-Maui1.0182
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance675.1
Triple Number Coastal/Long Distance Low780.1
Triple Number Coastal/Long Distance Medium616.4
Triple Number Coastal/Long Distance High561.7
Triple Number Windward/Leeward Low1002.8
Triple Number Windward/Leeward Medium754.8
Triple Number Windward/Leeward High668.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7691
Triple Number Coastal/Long Distance Medium0.9734
Triple Number Coastal/Long Distance High1.0682
Triple Number Windward/Leeward Low0.5983
Triple Number Windward/Leeward Medium0.7949
Triple Number Windward/Leeward High0.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low780.1
Triple Number Coastal/Long Distance Medium616.4
Triple Number Coastal/Long Distance High561.7
Triple Number Windward/Leeward Low1002.8
Triple Number Windward/Leeward Medium754.8
Triple Number Windward/Leeward High668.8
Predominantly Upwind676.1
Predominantly Downwind621.5
Predominantly Reaching599.9
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7691
Triple Number Coastal/Long Distance Medium0.9734
Triple Number Coastal/Long Distance High1.0682
Triple Number Windward/Leeward Low0.5983
Triple Number Windward/Leeward Medium0.7949
Triple Number Windward/Leeward High0.8971
Coastal/Long Distance0.8887
Predominantly Upwind0.8875
Predominantly Downwind0.9654
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.8887
Tretall Distanseseilas Lite vind0.7691
Tretall Distanseseilas Mellomvind0.9734
Tretall Distanseseilas Mye vind1.0682
Tretall Pølsebane Lite vind0.5983
Tretall Pølsebane Mellomvind0.7949
Tretall Pølsebane Mye vind0.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Coastal/Long Distance675.10.8887
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind676.10.8875
Predominantly Downwind621.50.9654
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore656.20.9143
Cape Doctor Coastal551.81.0873
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7691
Triple Number Coastal/Long Distance Medium0.9734
Triple Number Coastal/Long Distance High1.0682
Triple Number Windward/Leeward Low0.5983
Triple Number Windward/Leeward Medium0.7949
Triple Number Windward/Leeward High0.8971
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.7691
Triple Number Coastal/Long Distance Medium0.9734
Triple Number Coastal/Long Distance High1.0682
Triple Number Windward/Leeward Low0.5983
Triple Number Windward/Leeward Medium0.7949
Triple Number Windward/Leeward High0.8971
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Predominantly Upwind676.10.8875
Predominantly Downwind621.50.9654
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance675.10.8887
Triple Number Coastal/Long Distance Low780.10.7691
Triple Number Coastal/Long Distance Medium616.40.9734
Triple Number Coastal/Long Distance High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1096.8849.2715.5640.4601.0570.5520.1
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low780.10.7691
Triple Number All Purpose Medium616.40.9734
Triple Number All Purpose High561.71.0682
Triple Number Windward/Leeward Low1002.80.5983
Triple Number Windward/Leeward Medium754.80.7949
Triple Number Windward/Leeward High668.80.8971
Predominantly Upwind676.10.8875
Predominantly Downwind621.50.9654
Predominantly Upwind Low878.20.6832
Predominantly Upwind Medium702.40.8543
Predominantly Upwind High664.90.9023
Predominantly Downwind Low841.70.7128
Predominantly Downwind Medium611.20.9816
Predominantly Downwind High518.81.1564
Chicago-Mac Upwind0.8723
Chicago-Mac All Purpose0.9078
Chicago-Mac Downwind0.9502
Bayview-Mac Cove Island0.8497
Bayview-Mac Shore0.8530
Harvest Moon Regatta549.01.0930
Victoria-Maui1.0182
5-Band
Windward/Leeward		Time On DistanceTime On Time
5-Band Low1086.30.5523
5-Band Low / Medium922.10.6507
5-Band Medium742.40.8081
5-Band Medium / High677.00.8863
5-Band High653.00.9188
ORC Ref  041400027JBIssued on 25/07/2022Valid until 31/12/2022
VPP ver: 2022 1.04 | © ORC | www.orc.org

Club
Certificate
2022

Boat

Tiimi

L-4949

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassInferno 31Measurement22/07/2022HINPlan reviewHull constructionCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.447Max. Beam3.018Draft1.629Displacement4,300Wetted area18.94IMS L7.918LSM07.932Acc. length9.447Sink (kg/mm) 14.06
VCGD-0.008VCGM0.013RM Measured (kg·m) 70.3RM Default (kg·m) 70.3Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.360PBWPIPA0.0012
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionFixedInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2
P12.500IG11.685ISP11.750MDT10.120MDL10.170MDT2MDL2TLTaperMWGO
E4.245J3.575BAS1.468FSDSFJSPL3.580WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG estimatedFlotation Date22/07/2022MeasurerComment
SFFP0.593FFMFF1.121LCFcl5.314SG
SAFP8.565FAMFA1.015LCFsh5.524HBI1.021
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  041400027JBIssued on 25/07/2022Valid until 31/12/2022
VPP ver: 2022 1.04 | © ORC | www.orc.org

Club
Certificate
2022

Boat

Tiimi

L-4949

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateMakerMaterialComment10.120.801.502.593.4830.46
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialComment11.833.8411.60NoNo 22.34
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateMakerMaterialComment111.6011.6011.606.236.2160.18
ORC Ref  041400027JBIssued on 25/07/2022Valid until 31/12/2022
VPP ver: 2022 1.04 | © ORC | www.orc.org