Club
Certificate
Double Handed
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 Angles43.0°41.8°42.0°43.0°44.4°43.8°47.1°
Beat VMG2.783.213.373.413.403.453.41
52°4.214.845.145.255.295.335.39
60°4.425.125.475.595.645.655.76
75°4.605.385.765.915.986.016.06
90°4.575.405.866.076.206.296.35
110°4.655.575.986.146.266.346.59
120°4.535.496.006.276.426.556.69
135°4.155.075.806.176.456.747.17
150°3.594.505.305.886.206.487.09
Run VMG3.113.904.615.255.786.126.66
Gybe Angles148.4°152.9°153.8°161.9°176.6°179.0°179.0°

APH: 722.5

CDL: 5.371

GPH: 799.2

CertNo: 10009

BOAT
ClassL 28DesignerArvid LaurinBuilderRosättravarvetAge date01/1953Series date01/1953Offset fileL28_cl.offData fileFIN10009C
HULL
Length Overall8.315 mMaximum Beam2.500 mDraft1.358 mDisplacement3,382 kgDLR11.3800IMS DivisionCruiser/RacerDynamic Allowance0.578%Age Allowance0.487%
PROPELLER
InstallationIn ApertureTypeSolid 3 bladesDiameter0.330m
CREW
Maximum weight170 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19.9621.20Headsail Luffed23.6323.63Headsail FlyingSymmetric52.0952.09Asymmetric
STORM SAIL AREAS (m²)
Trysail5.81Storm Jib5.92Heavy Weather Jib15.97
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting Moment23.9 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  041400027LBIssued on 26/07/2022Valid until 31/12/2022
VPP ver: 2022 1.04 | © ORC | www.orc.org

Club
Certificate
Double Handed
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 VMG1295.31121.31069.61055.71057.51042.11055.3
52°855.9743.9700.9685.5680.2674.9668.2
60°814.1703.0658.5644.0638.6637.7625.3
75°782.1668.9625.0608.9601.9598.6593.6
90°787.2667.3614.3592.9580.3572.1566.5
110°774.9646.4601.6586.2574.7568.1546.3
120°795.1656.2599.8574.4560.5549.5538.5
135°868.5709.8620.8583.9558.1534.1501.8
150°1002.4800.7678.7612.2580.4555.3507.7
Run VMG1157.5921.9780.6685.4623.0588.4540.2
Selected Courses
Windward / Leeward1226.41021.6925.1870.6840.3815.2797.8
All purpose955.4802.1733.8701.9686.0671.6657.3
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward899.10.6673
All purpose722.50.8304
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.5457
Downwind "popa"0.7929
70% up, 30% down "Ilhabela"0.6020
30% up, 70% down "Ilhabela-inverso"0.6980
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Predominantly Upwind802.70.7475
Predominantly Downwind698.70.8588
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low878.70.6828
Triple Number All Purpose Medium716.90.8369
Triple Number All Purpose High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Predominantly Upwind802.70.7475
Predominantly Downwind698.70.8588
Predominantly Upwind Low997.80.6013
Predominantly Upwind Medium855.40.7015
Predominantly Upwind High833.50.7198
Predominantly Downwind Low936.80.6405
Predominantly Downwind Medium675.80.8879
Predominantly Downwind High578.71.0368
Chicago-Mac Upwind0.7345
Chicago-Mac All Purpose0.7862
Chicago-Mac Downwind0.8450
Bayview-Mac Cove Island0.7463
Bayview-Mac Shore0.7442
Victoria-Maui0.9155
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance784.8
Triple Number Coastal/Long Distance Low878.7
Triple Number Coastal/Long Distance Medium716.9
Triple Number Coastal/Long Distance High669.9
Triple Number Windward/Leeward Low1124.0
Triple Number Windward/Leeward Medium893.8
Triple Number Windward/Leeward High815.0
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6828
Triple Number Coastal/Long Distance Medium0.8369
Triple Number Coastal/Long Distance High0.8957
Triple Number Windward/Leeward Low0.5338
Triple Number Windward/Leeward Medium0.6713
Triple Number Windward/Leeward High0.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low878.7
Triple Number Coastal/Long Distance Medium716.9
Triple Number Coastal/Long Distance High669.9
Triple Number Windward/Leeward Low1124.0
Triple Number Windward/Leeward Medium893.8
Triple Number Windward/Leeward High815.0
Predominantly Upwind802.7
Predominantly Downwind698.7
Predominantly Reaching678.7
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6828
Triple Number Coastal/Long Distance Medium0.8369
Triple Number Coastal/Long Distance High0.8957
Triple Number Windward/Leeward Low0.5338
Triple Number Windward/Leeward Medium0.6713
Triple Number Windward/Leeward High0.7362
Coastal/Long Distance0.7645
Predominantly Upwind0.7475
Predominantly Downwind0.8588
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.7645
Tretall Distanseseilas Lite vind0.6828
Tretall Distanseseilas Mellomvind0.8369
Tretall Distanseseilas Mye vind0.8957
Tretall Pølsebane Lite vind0.5338
Tretall Pølsebane Mellomvind0.6713
Tretall Pølsebane Mye vind0.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Coastal/Long Distance784.80.7645
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind802.70.7475
Predominantly Downwind698.70.8588
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore803.00.7472
Cape Doctor Coastal661.60.9069
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6828
Triple Number Coastal/Long Distance Medium0.8369
Triple Number Coastal/Long Distance High0.8957
Triple Number Windward/Leeward Low0.5338
Triple Number Windward/Leeward Medium0.6713
Triple Number Windward/Leeward High0.7362
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6828
Triple Number Coastal/Long Distance Medium0.8369
Triple Number Coastal/Long Distance High0.8957
Triple Number Windward/Leeward Low0.5338
Triple Number Windward/Leeward Medium0.6713
Triple Number Windward/Leeward High0.7362
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Predominantly Upwind802.70.7475
Predominantly Downwind698.70.8588
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance784.80.7645
Triple Number Coastal/Long Distance Low878.70.6828
Triple Number Coastal/Long Distance Medium716.90.8369
Triple Number Coastal/Long Distance High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1219.5958.7828.8753.4711.7673.8614.6
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low878.70.6828
Triple Number All Purpose Medium716.90.8369
Triple Number All Purpose High669.90.8957
Triple Number Windward/Leeward Low1124.00.5338
Triple Number Windward/Leeward Medium893.80.6713
Triple Number Windward/Leeward High815.00.7362
Predominantly Upwind802.70.7475
Predominantly Downwind698.70.8588
Predominantly Upwind Low997.80.6013
Predominantly Upwind Medium855.40.7015
Predominantly Upwind High833.50.7198
Predominantly Downwind Low936.80.6405
Predominantly Downwind Medium675.80.8879
Predominantly Downwind High578.71.0368
Chicago-Mac Upwind0.7345
Chicago-Mac All Purpose0.7862
Chicago-Mac Downwind0.8450
Bayview-Mac Cove Island0.7463
Bayview-Mac Shore0.7442
Harvest Moon Regatta626.90.9571
Victoria-Maui0.9155
5-Band
Windward/Leeward		Time On DistanceTime On Time
5-Band Low1210.60.4956
5-Band Low / Medium1046.50.5733
5-Band Medium882.60.6798
5-Band Medium / High821.30.7306
5-Band High800.80.7493
ORC Ref  041400027LBIssued on 26/07/2022Valid until 31/12/2022
VPP ver: 2022 1.04 | © ORC | www.orc.org

Club
Certificate
Double Handed
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. Beam2.500Draft1.358Displacement3,382Wetted area18.02IMS L6.741LSM06.673Acc. length8.125Sink (kg/mm) 10.01
VCGD0.000VCGM0.005RM Measured (kg·m) 23.9RM Default (kg·m) 31.1Limit 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
SFFP0.816FFMFF1.047LCFcl4.550SG
SAFP7.642FAMFA0.704LCFsh4.732HBI0.791
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGORCAnchor*Legacy Anchor*180.00Total deductible180.00
ORC Ref  041400027LBIssued on 26/07/2022Valid until 31/12/2022
VPP ver: 2022 1.04 | © ORC | www.orc.org

Club
Certificate
Double Handed
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
ORC Ref  041400027LBIssued on 26/07/2022Valid until 31/12/2022
VPP ver: 2022 1.04 | © ORC | www.orc.org