Club Certificate2025
Rox-MaryFIN144
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 Angles43.5°43.5°41.5°40.6°40.2°40.0°40.0°40.1°41.0°
Beat VMG2.233.113.784.134.284.364.404.494.48
52°3.494.755.646.086.246.346.396.506.55
60°3.745.025.886.316.476.576.646.756.82
75°3.905.206.056.516.756.886.977.157.27
90°3.775.086.016.536.867.097.277.547.76
110°3.615.016.076.667.047.327.547.948.34
120°3.294.715.896.567.017.417.808.429.09
135°2.794.045.206.186.737.177.638.7510.84
150°2.313.414.475.436.256.757.168.099.61
Run VMG2.002.963.874.705.486.086.557.338.32
Gybe Angles145.3°145.3°148.7°149.8°155.9°165.1°171.7°174.8°144.5°
APH ToD:630.3CDL: 7.072APH ToT: 0.9519CertNo:
BOAT
ClassSkerry Cruiser 22DesignerGustaf EstlanderBuilderItseAge date01/1923Series date01/1923Offset fileROX22SK.offData fileFIN144
HULL
Length Overall9.880 mMaximum Beam1.642 mDraft1.186 mDisplacement1,648 kgDLR4.4360IMS DivisionCruiser/RacerDynamic Allowance0.400%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight220 kg(declared)Minimum weight130 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail15.5115.78Headsail Luffed12.4612.46Headsail FlyingSymmetric31.2731.27Asymmetric
STORM SAIL AREAS (m²)
Trysail4.38Storm Jib2.41Heavy Weather Jib6.49
SAIL LIMITS
Headsails5
✱ One set on the forestay
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 Certificate2025
Rox-MaryFIN144
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
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 VMG1613.61159.4952.7871.9841.4825.1818.6802.4804.1
52°1030.4758.5638.7592.5576.8568.2563.2553.5549.6
60°962.4717.8612.5571.0556.0548.0542.6533.0527.9
75°922.3692.6594.7552.9533.5523.4516.4503.6495.2
90°955.9708.1599.1551.3525.0507.6494.9477.3463.9
110°996.7719.0592.8540.3511.7491.7477.6453.2431.8
120°1092.8764.3611.6548.4513.6485.7461.5427.3396.2
135°1290.5890.2691.8582.5534.9502.1472.1411.4332.1
150°1557.81054.4805.7663.5576.1533.6502.6445.1374.7
Run VMG1799.91217.6930.4766.1657.5592.3549.9491.4432.7
Selected Courses
Windward / Leeward1704.71188.5941.5819.0749.5708.7684.3646.9618.4
All purpose1272.0904.2731.3649.7607.3582.3565.4536.3510.1
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward784.70.7646
All purpose630.30.9519
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6697
Downwind "popa"0.8069
70% up, 30% down "Ilhabela"0.7057
30% up, 70% down "Ilhabela-inverso"0.7602
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Predominantly Upwind685.00.8759
Predominantly Downwind639.70.9379
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low817.70.7337
Triple Number AP Medium625.60.9591
Triple Number AP High558.71.0738
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Single Number Predominant Upwind712.90.8417
Single Number Predominant Reaching625.70.9589
Single Number Predominant Downwind672.40.8923
Predominant Upwind - Low979.80.6123
Predominant Upwind - Low/Med745.30.8050
Predominant Upwind - Medium663.90.9037
Predominant Upwind - Med/High624.60.9607
Predominant Upwind - High602.20.9963
Predominant Downwind Low1029.80.5826
Predominant Downwind Low/Med736.60.8146
Predominant Downwind Medium614.10.9771
Predominant Downwind Med/High540.51.1100
Predominant Downwind High493.21.2166
Predominant Reaching Low890.00.6741
Predominant Reaching Low/Med666.40.9004
Predominant Reaching Medium581.11.0324
Predominant Reaching Med/High532.41.1270
Predominant Reaching High499.51.2012
SA/DSPL Upwind20.02SA/DSPL Downwind33.48
Scoring OptionTODTOT
5-Band Windward/Leeward Low1256.30.4776
5-Band Windward/Leeward Low/Med906.30.6620
5-Band Windward/Leeward Medium764.80.7845
5-Band Windward/Leeward Med/High687.50.8727
5-Band Windward/Leeward High648.50.9253
Windward/Leeward 60-40 Low1249.30.4803
Windward/Leeward 60-40 Low/Med912.70.6574
Windward/Leeward 60-40 Medium782.00.7673
Windward/Leeward 60-40 Med/High713.80.8406
Windward/Leeward 60-40 High679.90.8825
5-Band AP Low915.40.6554
5-Band AP Low/Med709.70.8455
5-Band AP Medium617.00.9725
5-Band AP Med/High566.91.0584
5-Band AP High536.81.1176
5-Band SF Bay Tour - Low1071.10.5602
5-Band SF Bay Tour - Low/Med863.80.6946
5-Band SF Bay Tour - Medium738.10.8129
5-Band SF Bay Tour - Med/High671.40.8937
5-Band SF Bay Tour - High634.50.9456
Chicago-Mac Upwind0.8172
Chicago-Mac All Purpose0.8402
Chicago-Mac Downwind0.8563
Bayview-Mac Cove Island0.6021
Bayview-Mac Shore0.6080
Harvest Moon Regatta536.71.1180
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance688.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating688.70.8712
FinRating, kevyt tuuli1236.30.8089
FinRating, kova tuuli537.80.9297
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8712
Triple Number Coastal/Long Distance Low0.7337
Triple Number Coastal/Long Distance Medium0.9592
Triple Number Coastal/Long Distance High1.0738
Triple Number Windward/Leeward Low0.5634
Triple Number Windward/Leeward Medium0.7707
Triple Number Windward/Leeward High0.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
For information
General Purpose Handicap (GPH)709.4
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low817.8
Triple Number Coastal/Long Distance Medium625.5
Triple Number Coastal/Long Distance High558.8
Triple Number Windward/Leeward Low1065.0
Triple Number Windward/Leeward Medium778.5
Triple Number Windward/Leeward High676.4
Predominantly Upwind685.0
Predominantly Downwind639.7
Predominantly Reaching610.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7337
Triple Number Coastal/Long Distance Medium0.9592
Triple Number Coastal/Long Distance High1.0738
Triple Number Windward/Leeward Low0.5634
Triple Number Windward/Leeward Medium0.7707
Triple Number Windward/Leeward High0.8871
Coastal/Long Distance0.8712
Predominantly Upwind0.8759
Predominantly Downwind0.9379
For information
General Purpose Handicap (GPH)709.4
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9519
Distanseseilas Trippeltall svak vind0.7337
Distanseseilas Trippeltall mellomvind0.9592
Distanseseilas Trippeltall sterk vind1.0738
Pølsebane Trippeltall svak vind0.5634
Pølsebane Trippeltall mellomvind0.7707
Pølsebane Trippeltall sterk vind0.8871
Motvind Singeltall0.8759
Medvind Singeltall0.9379
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Coastal/Long Distance688.70.8712
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind685.00.8759
Predominantly Downwind639.70.9379
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore627.00.9570
Cape Doctor Coastal518.01.1583
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7337
Triple Number Coastal/Long Distance Medium0.9592
Triple Number Coastal/Long Distance High1.0738
Triple Number Windward/Leeward Low0.5634
Triple Number Windward/Leeward Medium0.7707
Triple Number Windward/Leeward High0.8871
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7337
Triple Number Coastal/Long Distance Medium0.9592
Triple Number Coastal/Long Distance High1.0738
Triple Number Windward/Leeward Low0.5634
Triple Number Windward/Leeward Medium0.7707
Triple Number Windward/Leeward High0.8871
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Predominantly Upwind685.00.8759
Predominantly Downwind639.70.9379
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance688.70.8712
Triple Number Coastal/Long Distance Low817.80.7337
Triple Number Coastal/Long Distance Medium625.50.9592
Triple Number Coastal/Long Distance High558.81.0738
Triple Number Windward/Leeward Low1065.00.5634
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1833.21191.4884.7735.5650.4604.7569.2509.4484.9
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low817.70.7337
Triple Number AP Medium625.60.9591
Triple Number AP High558.71.0738
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium778.50.7707
Triple Number Windward/Leeward High676.40.8871
Single Number Predominant Upwind712.90.8417
Single Number Predominant Reaching625.70.9589
Single Number Predominant Downwind672.40.8923
Predominant Upwind - Low979.80.6123
Predominant Upwind - Low/Med745.30.8050
Predominant Upwind - Medium663.90.9037
Predominant Upwind - Med/High624.60.9607
Predominant Upwind - High602.20.9963
Predominant Downwind Low1029.80.5826
Predominant Downwind Low/Med736.60.8146
Predominant Downwind Medium614.10.9771
Predominant Downwind Med/High540.51.1100
Predominant Downwind High493.21.2166
Predominant Reaching Low890.00.6741
Predominant Reaching Low/Med666.40.9004
Predominant Reaching Medium581.11.0324
Predominant Reaching Med/High532.41.1270
Predominant Reaching High499.51.2012
SA/DSPL Upwind20.02SA/DSPL Downwind33.48
Scoring OptionTODTOT
5-Band Windward/Leeward Low1256.30.4776
5-Band Windward/Leeward Low/Med906.30.6620
5-Band Windward/Leeward Medium764.80.7845
5-Band Windward/Leeward Med/High687.50.8727
5-Band Windward/Leeward High648.50.9253
Windward/Leeward 60-40 Low1249.30.4803
Windward/Leeward 60-40 Low/Med912.70.6574
Windward/Leeward 60-40 Medium782.00.7673
Windward/Leeward 60-40 Med/High713.80.8406
Windward/Leeward 60-40 High679.90.8825
5-Band AP Low915.40.6554
5-Band AP Low/Med709.70.8455
5-Band AP Medium617.00.9725
5-Band AP Med/High566.91.0584
5-Band AP High536.81.1176
5-Band SF Bay Tour - Low1071.10.5602
5-Band SF Bay Tour - Low/Med863.80.6946
5-Band SF Bay Tour - Medium738.10.8129
5-Band SF Bay Tour - Med/High671.40.8937
5-Band SF Bay Tour - High634.50.9456
Chicago-Mac Upwind0.8172
Chicago-Mac All Purpose0.8402
Chicago-Mac Downwind0.8563
Bayview-Mac Cove Island0.6021
Bayview-Mac Shore0.6080
Harvest Moon Regatta536.71.1180
Club Certificate2025
Rox-MaryFIN144
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSkerry Cruiser 22MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.880Max. Beam1.642Draft1.186Displacement1,648Wetted area12.50IMS L7.845LSM07.188Acc. length5.337Sink (kg/mm) 8.49
VCGD-0.094VCGM-0.127RM Rated (kg·m) 19.5Limit of positive stability(°) N/AStability IndexN/ADefault crew weight430Declared crew weight220
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders2Rotating mastNo
P9.250IG6.930ISP7.000MDT10.010MDL10.115MDT2MDL2TLTaperMWGO
E2.700J2.000BAS0.810FSDSFJ1.550SPL2.500WPLTPS0.000BD0.100MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date14/03/2020
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
Rox-MaryFIN144
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.200.681.141.782.3315.5111/10/2020
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment13.686.65NoNo 12.4622.055.80NoNo 6.05
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment17.307.307.305.3031.27
CRUISER/RACER REQUIREMENTS*
Accommodation length5.3 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity-7 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.