Club
Certificate
2022

Boat

Alhena

FIN-10009

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 Angles43.6°41.8°42.2°42.5°42.9°43.6°43.8°
Beat VMG2.723.253.563.683.723.733.82
52°4.174.895.145.275.625.655.77
60°4.415.165.655.545.865.905.98
75°4.585.405.785.885.936.186.22
90°4.545.385.896.116.186.226.55
110°4.625.596.016.176.296.386.69
120°4.505.476.026.306.446.576.66
135°4.125.025.786.166.446.757.15
150°3.574.475.265.866.196.467.05
Run VMG3.093.884.575.225.756.106.63
Gybe Angles148.4°152.9°153.8°161.3°176.6°179.0°179.0°

APH: 706.4

CDL: 5.753

GPH: 787.1

CertNo: 10009

BOAT
ClassL 28DesignerArvid LaurinBuilderRosättravarvetAge date01/1953Series date01/1953Offset fileL28_cl.offData fileFIN10009C
HULL
Length Overall8.315 mMaximum Beam2.500 mDraft1.335 mDisplacement3,382 kgDLR10.8446IMS DivisionCruiser/RacerDynamic Allowance0.616%Age Allowance0.487%
PROPELLER
InstallationIn ApertureTypeSolid 3 bladesDiameter0.330m
CREW
Maximum weight386 kgMinimum weight290 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19.9621.21Headsail Luffed23.6323.63Headsail FlyingSymmetric52.0952.09Asymmetric
STORM SAIL AREAS (m²)
Trysail5.81Storm Jib5.92Heavy Weather Jib15.97
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment22.1 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.

Club
Certificate
2022

Boat

Alhena

FIN-10009

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 VMG1321.61109.21011.3979.3966.9966.0941.7
52°863.0736.8700.4683.2640.9637.0624.1
60°816.5697.3637.7650.0614.0610.6602.0
75°785.9666.7623.1612.4607.2582.3578.6
90°792.7668.8611.5589.3582.1579.0549.6
110°778.6644.3598.8583.5572.2564.5537.8
120°800.8658.6597.9571.3559.0548.1540.1
135°874.6716.5623.4584.9558.6533.3503.5
150°1008.9806.0684.1614.4581.8557.4510.9
Run VMG1164.9928.0787.1689.8625.7590.0543.1
Selected Courses
Windward / Leeward1243.31018.6899.2834.6796.3778.0742.4
All purpose965.5800.3720.7685.0661.4649.6624.4
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward868.40.6909
All purpose706.40.8494
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.5757
Downwind "popa"0.7882
70% up, 30% down "Ilhabela"0.6263
30% up, 70% down "Ilhabela-inverso"0.7096
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Predominantly Upwind780.90.7684
Predominantly Downwind695.50.8627
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low882.90.6796
Triple Number All Purpose Medium700.60.8564
Triple Number All Purpose High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Predominantly Upwind780.90.7684
Predominantly Downwind695.50.8627
Predominantly Upwind Low1002.00.5988
Predominantly Upwind Medium820.00.7317
Predominantly Upwind High775.10.7741
Predominantly Downwind Low942.40.6367
Predominantly Downwind Medium675.80.8879
Predominantly Downwind High575.41.0427
Chicago-Mac Upwind0.7556
Chicago-Mac All Purpose0.7987
Chicago-Mac Downwind0.8488
Bayview-Mac Cove Island0.7514
Bayview-Mac Shore0.7518
Victoria-Maui0.9151
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance768.5
Triple Number Coastal/Long Distance Low882.9
Triple Number Coastal/Long Distance Medium700.6
Triple Number Coastal/Long Distance High643.1
Triple Number Windward/Leeward Low1131.0
Triple Number Windward/Leeward Medium861.8
Triple Number Windward/Leeward High769.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6796
Triple Number Coastal/Long Distance Medium0.8564
Triple Number Coastal/Long Distance High0.9330
Triple Number Windward/Leeward Low0.5305
Triple Number Windward/Leeward Medium0.6962
Triple Number Windward/Leeward High0.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low882.9
Triple Number Coastal/Long Distance Medium700.6
Triple Number Coastal/Long Distance High643.1
Triple Number Windward/Leeward Low1131.0
Triple Number Windward/Leeward Medium861.8
Triple Number Windward/Leeward High769.2
Predominantly Upwind780.9
Predominantly Downwind695.5
Predominantly Reaching675.0
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6796
Triple Number Coastal/Long Distance Medium0.8564
Triple Number Coastal/Long Distance High0.9330
Triple Number Windward/Leeward Low0.5305
Triple Number Windward/Leeward Medium0.6962
Triple Number Windward/Leeward High0.7800
Coastal/Long Distance0.7808
Predominantly Upwind0.7684
Predominantly Downwind0.8627
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.7808
Tretall Distanseseilas Lite vind0.6796
Tretall Distanseseilas Mellomvind0.8564
Tretall Distanseseilas Mye vind0.9330
Tretall Pølsebane Lite vind0.5305
Tretall Pølsebane Mellomvind0.6962
Tretall Pølsebane Mye vind0.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Coastal/Long Distance768.50.7808
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind780.90.7684
Predominantly Downwind695.50.8627
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore753.10.7967
Cape Doctor Coastal631.90.9495
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6796
Triple Number Coastal/Long Distance Medium0.8564
Triple Number Coastal/Long Distance High0.9330
Triple Number Windward/Leeward Low0.5305
Triple Number Windward/Leeward Medium0.6962
Triple Number Windward/Leeward High0.7800
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6796
Triple Number Coastal/Long Distance Medium0.8564
Triple Number Coastal/Long Distance High0.9330
Triple Number Windward/Leeward Low0.5305
Triple Number Windward/Leeward Medium0.6962
Triple Number Windward/Leeward High0.7800
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Predominantly Upwind780.90.7684
Predominantly Downwind695.50.8627
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance768.50.7808
Triple Number Coastal/Long Distance Low882.90.6796
Triple Number Coastal/Long Distance Medium700.60.8564
Triple Number Coastal/Long Distance High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1235.4956.4808.2731.6685.2654.4595.0
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low882.90.6796
Triple Number All Purpose Medium700.60.8564
Triple Number All Purpose High643.10.9330
Triple Number Windward/Leeward Low1131.00.5305
Triple Number Windward/Leeward Medium861.80.6962
Triple Number Windward/Leeward High769.20.7800
Predominantly Upwind780.90.7684
Predominantly Downwind695.50.8627
Predominantly Upwind Low1002.00.5988
Predominantly Upwind Medium820.00.7317
Predominantly Upwind High775.10.7741
Predominantly Downwind Low942.40.6367
Predominantly Downwind Medium675.80.8879
Predominantly Downwind High575.41.0427
Chicago-Mac Upwind0.7556
Chicago-Mac All Purpose0.7987
Chicago-Mac Downwind0.8488
Bayview-Mac Cove Island0.7514
Bayview-Mac Shore0.7518
Harvest Moon Regatta618.70.9698
Victoria-Maui0.9151
5-Band
Windward/Leeward
Time On DistanceTime On Time
5-Band Low1226.00.4894
5-Band Low / Medium1041.90.5758
5-Band Medium849.40.7063
5-Band Medium / High779.70.7695
5-Band High748.60.8015

Club
Certificate
2022

Boat

Alhena

FIN-10009

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassL 28MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.315Max. Beam2.500Draft1.335Displacement3,382Wetted area17.94IMS L6.856LSM06.781Acc. length8.125Sink (kg/mm) 9.75
VCGD0.000VCGM0.007RM Measured (kg·m) 22.1RM Default (kg·m) 28.8Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeSolid 3 blades
InstallationIn ApertureTwin screwNoHydro generatorNo
PRD0.330PBWPIPA0.0053
APHAPTAPB
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1
P9.750IG10.875ISP11.000MDT10.120MDL10.220MDT2MDL2TL0.000MWGO
E3.400J3.210BAS1.200FSD0.000SFJ0.200SPL3.100WPLTPS0.000BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyFlotation Date01/01/2007MeasurerComment
SFFP0.816FFMFF0.938LCFcl4.352SG
SAFP7.642FAMFA0.800LCFsh4.541HBI0.760
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGORCAnchor*Legacy Anchor*180.00Total deductible180.00

Club
Certificate
2022

Boat

Alhena

FIN-10009

Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateMakerMaterialComment367-2012092317570.131.282.172.9019.96
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialComment367-2012092318004.4610.41NoNo 23.63
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateMakerMaterialComment367-20140701131310.6310.6310.635.865.9652.09