Non Spin/HSFClub Certificate2025
OrcaFIN 797
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°41.3°40.4°40.4°40.5°40.5°41.2°43.2°
Beat VMG1.932.683.293.693.944.054.104.083.92
52°3.024.094.895.445.765.915.986.015.89
60°3.204.315.115.665.966.126.206.266.21
75°3.304.465.305.856.156.356.486.616.65
90°3.194.365.255.856.216.446.636.917.06
110°2.833.964.915.666.136.446.697.127.46
120°2.633.734.695.466.016.356.627.107.53
135°2.263.294.245.025.676.126.426.947.43
150°1.942.883.794.575.245.806.196.737.22
Run VMG1.682.513.334.084.755.355.856.496.98
Gybe Angles155.9°155.9°161.8°180.0°180.0°180.0°180.0°180.0°180.0°
APH ToD:714.4CDL: 6.285APH ToT: 0.8398CertNo:
BOAT
ClassMurena 30DesignerSodegren HakanBuilderBoatsman SunsailAge date01/1977Series date01/1972Offset fileUS14080.OFFData fileFIN797
HULL
Length Overall9.141 mMaximum Beam3.164 mDraft1.681 mDisplacement3,200 kgDLR8.6824IMS DivisionCruiser/RacerDynamic Allowance0.390%Age Allowance0.487%
PROPELLER
InstallationStrutTypeSolid 3 bladesDiameter0.320m
CREW
Maximum weight250 kg(declared)Minimum weight130 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.9422.47Headsail Luffed14.3814.38Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail5.88Storm Jib6.62Heavy Weather Jib17.86
SAIL LIMITS
Headsails1
✱ One set on the forestay
✱ Zero set flying
✱ Woven polyester sails
Spinnakers0
✱ Spinnaker pole aboard
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.
Non Spin/HSFClub Certificate2025
OrcaFIN 797
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 VMG1866.21341.31095.6974.8914.5887.9877.9882.1918.1
52°1192.0879.3736.5661.7625.1608.8601.9598.8610.7
60°1123.9834.6704.3636.4603.9588.3580.6575.5579.8
75°1091.6807.7679.8615.9584.9567.2555.9544.4541.6
90°1127.9825.6686.3615.0580.1558.7542.6521.2509.7
110°1273.1908.5732.6635.6587.0559.1538.1505.3482.5
120°1368.7964.1767.6659.2599.4566.9543.8506.8478.2
135°1594.61093.2848.9716.9634.8588.6560.4518.5484.8
150°1854.21248.4951.1788.1686.6620.5581.9535.2498.7
Run VMG2139.41432.41082.3882.9757.8672.3614.9554.9515.6
Selected Courses
Windward / Leeward1999.21386.91088.9928.8836.1780.1746.4718.5716.9
All purpose1513.11070.0857.0744.3681.9646.1624.8602.4595.6
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward881.40.6807
All purpose714.40.8398
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6022
Downwind "popa"0.7003
70% up, 30% down "Ilhabela"0.6286
30% up, 70% down "Ilhabela-inverso"0.6677
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Predominantly Upwind766.80.7825
Predominantly Downwind737.70.8134
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low963.50.6227
Triple Number AP Medium708.40.8469
Triple Number AP High621.70.9651
Triple Number Windward/Leeward Low1298.40.4621
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Single Number Predominant Upwind801.70.7484
Single Number Predominant Reaching717.10.8367
Single Number Predominant Downwind779.80.7694
Predominant Upwind - Low1144.00.5245
Predominant Upwind - Low/Med852.90.7035
Predominant Upwind - Medium736.80.8144
Predominant Upwind - Med/High682.10.8796
Predominant Upwind - High668.80.8971
Predominant Downwind Low1224.70.4899
Predominant Downwind Low/Med862.80.6954
Predominant Downwind Medium703.90.8523
Predominant Downwind Med/High611.30.9816
Predominant Downwind High571.11.0506
Predominant Reaching Low1053.80.5693
Predominant Reaching Low/Med773.90.7753
Predominant Reaching Medium657.50.9126
Predominant Reaching Med/High594.71.0090
Predominant Reaching High568.21.0559
SA/DSPL Upwind16.66SA/DSPL Downwind16.66
Scoring OptionTODTOT
5-Band Windward/Leeward Low1466.40.4092
5-Band Windward/Leeward Low/Med1039.10.5774
5-Band Windward/Leeward Medium855.70.7012
5-Band Windward/Leeward Med/High755.00.7947
5-Band Windward/Leeward High723.00.8298
Windward/Leeward 60-40 Low1455.30.4123
Windward/Leeward 60-40 Low/Med1043.70.5749
Windward/Leeward 60-40 Medium871.00.6889
Windward/Leeward 60-40 Med/High780.60.7686
Windward/Leeward 60-40 High755.90.7937
5-Band AP Low1089.70.5506
5-Band AP Low/Med822.80.7292
5-Band AP Medium696.10.8620
5-Band AP Med/High629.40.9533
5-Band AP High605.10.9916
5-Band SF Bay Tour - Low1254.00.4785
5-Band SF Bay Tour - Low/Med995.80.6025
5-Band SF Bay Tour - Medium829.40.7234
5-Band SF Bay Tour - Med/High741.70.8090
5-Band SF Bay Tour - High714.80.8393
Chicago-Mac Upwind0.7229
Chicago-Mac All Purpose0.7342
Chicago-Mac Downwind0.7369
Bayview-Mac Cove Island0.5169
Bayview-Mac Shore0.5224
Harvest Moon Regatta610.10.9835
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance779.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating779.10.7701
FinRating, kevyt tuuli1448.80.6902
FinRating, kova tuuli609.50.8204
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7701
Triple Number Coastal/Long Distance Low0.6227
Triple Number Coastal/Long Distance Medium0.8471
Triple Number Coastal/Long Distance High0.9651
Triple Number Windward/Leeward Low0.4847
Triple Number Windward/Leeward Medium0.6864
Triple Number Windward/Leeward High0.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
For information
General Purpose Handicap (GPH)811.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low963.5
Triple Number Coastal/Long Distance Medium708.3
Triple Number Coastal/Long Distance High621.7
Triple Number Windward/Leeward Low1237.9
Triple Number Windward/Leeward Medium874.1
Triple Number Windward/Leeward High744.3
Predominantly Upwind766.8
Predominantly Downwind737.7
Predominantly Reaching700.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6227
Triple Number Coastal/Long Distance Medium0.8471
Triple Number Coastal/Long Distance High0.9651
Triple Number Windward/Leeward Low0.4847
Triple Number Windward/Leeward Medium0.6864
Triple Number Windward/Leeward High0.8061
Coastal/Long Distance0.7701
Predominantly Upwind0.7825
Predominantly Downwind0.8134
For information
General Purpose Handicap (GPH)811.1
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8398
Distanseseilas Trippeltall svak vind0.6227
Distanseseilas Trippeltall mellomvind0.8471
Distanseseilas Trippeltall sterk vind0.9651
Pølsebane Trippeltall svak vind0.4847
Pølsebane Trippeltall mellomvind0.6864
Pølsebane Trippeltall sterk vind0.8061
Motvind Singeltall0.7825
Medvind Singeltall0.8134
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Coastal/Long Distance779.10.7701
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind766.80.7825
Predominantly Downwind737.70.8134
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore717.40.8364
Cape Doctor Coastal597.61.0039
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6227
Triple Number Coastal/Long Distance Medium0.8471
Triple Number Coastal/Long Distance High0.9651
Triple Number Windward/Leeward Low0.4847
Triple Number Windward/Leeward Medium0.6864
Triple Number Windward/Leeward High0.8061
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6227
Triple Number Coastal/Long Distance Medium0.8471
Triple Number Coastal/Long Distance High0.9651
Triple Number Windward/Leeward Low0.4847
Triple Number Windward/Leeward Medium0.6864
Triple Number Windward/Leeward High0.8061
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Predominantly Upwind766.80.7825
Predominantly Downwind737.70.8134
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance779.10.7701
Triple Number Coastal/Long Distance Low963.50.6227
Triple Number Coastal/Long Distance Medium708.30.8471
Triple Number Coastal/Long Distance High621.70.9651
Triple Number Windward/Leeward Low1237.90.4847
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2146.81391.41026.6838.5729.5671.1630.6572.0559.7
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low963.50.6227
Triple Number AP Medium708.40.8469
Triple Number AP High621.70.9651
Triple Number Windward/Leeward Low1298.40.4621
Triple Number Windward/Leeward Medium874.10.6864
Triple Number Windward/Leeward High744.30.8061
Single Number Predominant Upwind801.70.7484
Single Number Predominant Reaching717.10.8367
Single Number Predominant Downwind779.80.7694
Predominant Upwind - Low1144.00.5245
Predominant Upwind - Low/Med852.90.7035
Predominant Upwind - Medium736.80.8144
Predominant Upwind - Med/High682.10.8796
Predominant Upwind - High668.80.8971
Predominant Downwind Low1224.70.4899
Predominant Downwind Low/Med862.80.6954
Predominant Downwind Medium703.90.8523
Predominant Downwind Med/High611.30.9816
Predominant Downwind High571.11.0506
Predominant Reaching Low1053.80.5693
Predominant Reaching Low/Med773.90.7753
Predominant Reaching Medium657.50.9126
Predominant Reaching Med/High594.71.0090
Predominant Reaching High568.21.0559
SA/DSPL Upwind16.66SA/DSPL Downwind16.66
Scoring OptionTODTOT
5-Band Windward/Leeward Low1466.40.4092
5-Band Windward/Leeward Low/Med1039.10.5774
5-Band Windward/Leeward Medium855.70.7012
5-Band Windward/Leeward Med/High755.00.7947
5-Band Windward/Leeward High723.00.8298
Windward/Leeward 60-40 Low1455.30.4123
Windward/Leeward 60-40 Low/Med1043.70.5749
Windward/Leeward 60-40 Medium871.00.6889
Windward/Leeward 60-40 Med/High780.60.7686
Windward/Leeward 60-40 High755.90.7937
5-Band AP Low1089.70.5506
5-Band AP Low/Med822.80.7292
5-Band AP Medium696.10.8620
5-Band AP Med/High629.40.9533
5-Band AP High605.10.9916
5-Band SF Bay Tour - Low1254.00.4785
5-Band SF Bay Tour - Low/Med995.80.6025
5-Band SF Bay Tour - Medium829.40.7234
5-Band SF Bay Tour - Med/High741.70.8090
5-Band SF Bay Tour - High714.80.8393
Chicago-Mac Upwind0.7229
Chicago-Mac All Purpose0.7342
Chicago-Mac Downwind0.7369
Bayview-Mac Cove Island0.5169
Bayview-Mac Shore0.5224
Harvest Moon Regatta610.10.9835
Non Spin/HSFClub Certificate2025
OrcaFIN 797
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMurena 30MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.141Max. Beam3.164Draft1.681Displacement3,200Wetted area16.58IMS L7.237LSM07.169Acc. length9.141Sink (kg/mm) 11.43
VCGD0.000VCGM0.025RM Rated (kg·m) 45.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight428Declared crew weight250
PROPELLER
Propeller TypeSolid 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.320PBW0.080PIPA0.0124
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionForwardInner stayAdjustableMast materialSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays5CheckstaysSpreaders4Rotating mastNo
P10.500IG11.500ISP11.500MDT10.100MDL10.150MDT2MDL2TLTaperMWGO
E3.200J4.000BAS1.000FSDSFJ0.250SPL3.500WPLTPS5.000BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date30/07/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
OrcaFIN 797
Avomeripurjehtijat ry
c/o Mainoskauppa Oy
Melkonkatu 16 B
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.030.801.402.502.8021.94
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.000.000.000.000.002.909.74NoNo 14.38
CRUISER/RACER REQUIREMENTS*
Accommodation length9.1 mTable area0.44 m²Headroom1.63 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity62 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity32 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.