Club Certificate2026
OrcaFIN 797
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
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 Angles46.7°43.7°41.3°40.5°40.4°40.1°40.1°40.8°43.6°
Beat VMG1.982.843.453.844.064.144.184.133.89
52°3.114.345.135.645.896.016.066.035.91
60°3.344.575.365.846.086.206.266.276.22
75°3.504.735.546.016.276.436.536.646.64
90°3.394.665.566.076.336.546.726.987.14
110°3.424.785.746.266.586.837.017.277.32
120°3.284.635.636.236.596.907.197.597.82
135°2.914.215.235.986.436.787.137.808.36
150°2.453.644.655.506.106.496.827.528.20
Run VMG2.133.154.034.795.445.946.336.957.58
Gybe Angles144.4°148.0°151.6°154.7°161.7°167.8°176.3°177.2°177.2°
APH ToD:663.3CDL: 6.456APH ToT: 0.9045CertNo:
BOAT
ClassMurena 30DesignerSodegren HakanBuilderBoatsman SunsailAge date01/1977Series date01/1972Offset fileUS14080.OFFData fileFIN797
HULL
Length Overall9.141 mMaximum Beam3.164 mDraft1.681 mDisplacement3,200 kgDLR8.6823IMS DivisionCruiser/RacerDynamic Allowance0.370%Age Allowance0.650%RS Assessment-0.305%
PROPELLER
InstallationStrutTypeSolid 3 bladesDiameter0.320m
CREW
Maximum weight250 kg(declared)Minimum weight130 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19.5920.06Headsail Luffed25.0125.01Headsail FlyingSymmetric53.6755.52Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail5.68Storm Jib6.62Heavy Weather Jib17.86
SAIL LIMITS
Headsails5
✱ One set on the forestay
✱ Woven polyester sails
Spinnakers4
STABILITY
Righting Moment 47.1 kg·m Stability Index 118.3
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  04140004UVU Issued on 08/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
OrcaFIN 797
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
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 VMG1822.11267.21044.0936.8886.9869.0862.2872.2925.9
52°1158.0830.3701.4638.0610.9599.3594.4597.2609.5
60°1076.3787.8671.2616.5591.9580.3575.2574.6578.8
75°1027.9761.3649.5599.2574.4560.1551.0542.6541.9
90°1061.4773.3647.1593.5568.6550.1535.9515.5504.3
110°1051.7752.6627.4574.7547.5527.3513.9494.9491.6
120°1095.9777.8639.6578.0546.2521.4500.4474.3460.2
135°1238.0855.1688.9601.7559.6530.7504.7461.3430.8
150°1466.6988.6773.9655.0590.1554.6527.6478.7439.0
Run VMG1693.51141.5892.3751.6661.9605.7568.7518.1474.7
Selected Courses
Windward / Leeward1757.81204.4968.2844.2774.4737.3715.4695.2700.3
All purpose1335.9935.5766.1682.1638.6614.7599.1581.5581.0
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward812.00.7390
All purpose663.30.9045
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6233
Downwind "popa"0.8171
70% up, 30% down "Ilhabela"0.6711
30% up, 70% down "Ilhabela-inverso"0.7474
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Predominantly Upwind725.90.8266
Predominantly Downwind660.70.9081
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP691.60.8676 Predom. Rc High546.01.0989 5B SF Bay L/M891.60.6730 TriNum AP Low850.80.7052 Predom. Dn Low1025.50.5851 5B SF Bay Med768.50.7807 TriNum AP Med657.80.9121 Predom. Dn L/M748.00.8021 5B SF Bay M/H707.30.8483 TriNum AP High596.41.0060 Predom. Dn Med636.70.9423 5B SF Bay High689.40.8704 TriNum W/L Low1141.00.5258 Predom. Dn M/H571.61.0496 5B AP Low947.40.6333 TriNum W/L Med804.50.7458 Predom. Dn High537.61.1161 5B AP L/M742.60.8079 TriNum W/L Hig713.40.8411 ChiMac Up Low919.80.6523 5B AP Med649.20.9243 Predom. Upwind759.80.7896 ChiMac Up Med829.50.7233 5B AP M/H602.10.9965 Predom. Reaching662.30.9059 ChiMac Up High727.40.8249 5B AP High584.51.0266 Predom. Downwind693.60.8651 ChiMac Off Low876.60.6845 5B W/L Low1283.70.4674 Predom. Up Low1050.70.5710 ChiMac Off Med771.90.7773 5B W/L L/M930.60.6447 Predom. Up L/M793.80.7559 ChiMac Off High649.60.9237 5B W/L Med791.10.7585 Predom. Up Med702.50.8541 ChiMac AP Low894.50.6708 5B W/L M/H720.70.8325 Predom. Up M/H662.80.9053 ChiMac AP Med798.10.7518 5B W/L High699.60.8577 Predom. Up High655.20.9157 ChiMac AP High686.70.8737 W/L 60-40 Low1297.00.4626 Predom. Rc Low927.60.6468 BayMac Cove Island1031.30.5818 W/L 60-40 L/M947.70.6331 Predom. Rc L/M699.30.8580 BayMac Shore1024.10.5859 W/L 60-40 Med813.50.7376 Predom. Rc Med615.00.9756 Harvest Moon579.11.0361 W/L 60-40 M/H750.00.8000 Predom. Rc M/H568.91.0547 5B SF Bay Low1083.70.5537 W/L 60-40 High735.60.8157      SA/DSPL Up20.46SA/DSPL Dn33.61
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance719.5
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating719.50.8339
FinRating, kevyt tuuli1267.00.7893
FinRating, kova tuuli588.60.8494
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8339
Triple Number Coastal/Long Distance Low0.7052
Triple Number Coastal/Long Distance Medium0.9122
Triple Number Coastal/Long Distance High1.0060
Triple Number Windward/Leeward Low0.5523
Triple Number Windward/Leeward Medium0.7458
Triple Number Windward/Leeward High0.8411
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
For information
General Purpose Handicap (GPH)744.0
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Saronikos S All Purpose761.70.7877
Saronikos S Upwind870.90.6889
Saronikos S Downwind627.60.9560
Saronikos N All Purpose805.50.7448
Saronikos N Upwind915.50.6554
Saronikos N Downwind687.40.8729
Saronikos SW All Purpose769.20.7800
Saronikos SW Upwind894.00.6712
Saronikos SW Downwind642.40.9340
Saronikos NE All Purpose834.00.7194
Saronikos NE Upwind858.30.6991
Saronikos NE Downwind778.80.7704
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose691.60.8676
5-Band All Purpose Low1034.10.5802
5-Band All Purpose L/M768.90.7803
5-Band All Purpose Med668.60.8974
5-Band All Purpose M/H616.50.9732
5-Band All Purpose High595.71.0072
Single Number Predominant Upwind724.40.8282
Single Number Predominant Reaching634.00.9463
Single Number Predominant Downwind661.60.9069
5-Band 50-50 Windward/Leeward Low1283.70.4674
5-Band 50-50 Windward/Leeward L/M930.60.6447
5-Band 50-50 Windward/Leeward Med791.10.7585
5-Band 50-50 Windward/Leeward M/H720.70.8325
5-Band 50-50 Windward/Leeward High699.60.8577
5-Band 60-40 Windward/Leeward Low1297.00.4626
5-Band 60-40 Windward/Leeward L/M947.70.6331
5-Band 60-40 Windward/Leeward Med813.50.7376
5-Band 60-40 Windward/Leeward M/H750.00.8000
5-Band 60-40 Windward/Leeward High735.60.8157
Triple Number 50-50 Windward/Leeward Low1141.00.5258
Triple Number 50-50 Windward/Leeward Med804.60.7457
Triple Number 50-50 Windward/Leeward High713.30.8411
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward834.50.7190
Triple Number 60-40 Windward/Leeward Low1155.10.5194
Triple Number 60-40 Windward/Leeward Med826.20.7263
Triple Number 60-40 Windward/Leeward High744.20.8063
Triple Number All-Purpose Low926.10.6479
Triple Number All-Purpose Med678.00.8849
Triple Number All-Purpose High610.00.9836
Triple Number Predominant Upwind Low953.20.6294
Triple Number Predominant Upwind Med713.50.8409
Triple Number Predominant Upwind High668.20.8979
Triple Number Predominant Reaching Low839.40.7148
Triple Number Predominant Reaching Med633.60.9470
Triple Number Predominant Reaching High551.91.0871
Triple Number Predominant Downwind Low913.40.6569
Triple Number Predominant Downwind Med646.50.9281
Triple Number Predominant Downwind High548.11.0947
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low850.8
Triple Number Coastal/Long Distance Medium657.8
Triple Number Coastal/Long Distance High596.4
Triple Number Windward/Leeward Low1086.4
Triple Number Windward/Leeward Medium804.5
Triple Number Windward/Leeward High713.4
Predominantly Upwind725.9
Predominantly Downwind660.7
Predominantly Reaching640.3
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7052
Triple Number Coastal/Long Distance Medium0.9122
Triple Number Coastal/Long Distance High1.0060
Triple Number Windward/Leeward Low0.5523
Triple Number Windward/Leeward Medium0.7458
Triple Number Windward/Leeward High0.8411
Coastal/Long Distance0.8339
Predominantly Upwind0.8266
Predominantly Downwind0.9081
For information
General Purpose Handicap (GPH)744.0
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9045
Distanseseilas Trippeltall svak vind0.7052
Distanseseilas Trippeltall mellomvind0.9122
Distanseseilas Trippeltall sterk vind1.0060
Pølsebane Trippeltall svak vind0.5523
Pølsebane Trippeltall mellomvind0.7458
Pølsebane Trippeltall sterk vind0.8411
Motvind Singeltall0.8266
Medvind Singeltall0.9081
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Coastal/Long Distance719.50.8339
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind725.90.8266
Predominantly Downwind660.70.9081
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore698.70.8587
Cape Doctor Coastal581.21.0324
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7052
Triple Number Coastal/Long Distance Medium0.9122
Triple Number Coastal/Long Distance High1.0060
Triple Number Windward/Leeward Low0.5523
Triple Number Windward/Leeward Medium0.7458
Triple Number Windward/Leeward High0.8411
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7052
Triple Number Coastal/Long Distance Medium0.9122
Triple Number Coastal/Long Distance High1.0060
Triple Number Windward/Leeward Low0.5523
Triple Number Windward/Leeward Medium0.7458
Triple Number Windward/Leeward High0.8411
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Predominantly Upwind725.90.8266
Predominantly Downwind660.70.9081
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.50.8339
Triple Number Coastal/Long Distance Low850.80.7052
Triple Number Coastal/Long Distance Medium657.80.9122
Triple Number Coastal/Long Distance High596.41.0060
Triple Number Windward/Leeward Low1086.40.5523
Triple Number Windward/Leeward Medium804.50.7458
Triple Number Windward/Leeward High713.40.8411
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1751.41198.1911.1764.0681.4637.7604.0552.2544.6
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP691.60.8676 Predom. Dn High537.61.1161 5B AP M/H602.10.9965 TriNum AP Low850.80.7052 Predom. Rc Low927.60.6468 5B AP High584.51.0266 TriNum AP Med657.80.9121 Predom. Rc L/M699.30.8580 5B SF Bay Low1083.70.5537 TriNum AP High596.41.0060 Predom. Rc Med615.00.9756 5B SF Bay L/M891.60.6730 TriNum W/L Low1141.00.5258 Predom. Rc M/H568.91.0547 5B SF Bay Med768.50.7807 TriNum W/L Med804.50.7458 Predom. Rc High546.01.0989 5B SF Bay M/H707.30.8483 TriNum W/L Hig713.40.8411 5B W/L Low1283.70.4674 5B SF Bay High689.40.8704 Predom. Upwind759.80.7896 5B W/L L/M930.60.6447 ChiMac Up Low919.80.6523 Predom. Reaching662.30.9059 5B W/L Med791.10.7585 ChiMac Up Med829.50.7233 Predom. Downwind693.60.8651 5B W/L M/H720.70.8325 ChiMac Up High727.40.8249 Predom. Up Low1050.70.5710 5B W/L High699.60.8577 ChiMac Off Low876.60.6845 Predom. Up L/M793.80.7559 W/L 60-40 Low1297.00.4626 ChiMac Off Med771.90.7773 Predom. Up Med702.50.8541 W/L 60-40 L/M947.70.6331 ChiMac Off High649.60.9237 Predom. Up M/H662.80.9053 W/L 60-40 Med813.50.7376 ChiMac AP Low894.50.6708 Predom. Up High655.20.9157 W/L 60-40 M/H750.00.8000 ChiMac AP Med798.10.7518 Predom. Dn Low1025.50.5851 W/L 60-40 High735.60.8157 ChiMac AP High686.70.8737 Predom. Dn L/M748.00.8021 5B AP Low947.40.6333 BayMac Cove Island1031.30.5818 Predom. Dn Med636.70.9423 5B AP L/M742.60.8079 BayMac Shore1024.10.5859 Predom. Dn M/H571.61.0496 5B AP Med649.20.9243 Harvest Moon579.11.0361      SA/DSPL Up20.46SA/DSPL Dn33.61
ORC Ref  04140004UVU Issued on 08/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
OrcaFIN 797
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMurena 30MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.141Maximum beam3.164Draft1.681Displacement3,200Wetted area16.58IMS L7.242LSM07.169Accomod. length9.141Sink (kg/mm) 11.43
VCGD-0.035VCGM-0.010 RM Rated (kg·m) 47.1Limit of positive stability(°) 121.8 Stability Index 118.3 BLR index 0.0000Default crew weight428 Declared crew weight 250
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeSolid 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.320PBW0.080PIPA0.0124
EDLST1ST2
ST3ST4ST5
RIG
BackstayFixedForestayAdjustable (turnbuckle)Inner forestayAdjustableMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysYesCheckstaysYesSpreaders4Rotating mastNo
P9.400IG11.500ISP11.500MDT10.100MDL10.150MDT2MDL2TLTaperMWGO
E3.450J4.000BAS1.640FSDSFJ0.250SPL3.500WPLTPS5.000BDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date30/07/2025
SFFP0.689FFMFF1.213LCFcl5.184SG
SAFP8.617FAMFA0.903LCFsh5.414HBI1.012
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004UVU Issued on 08/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
OrcaFIN 797
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.130.751.342.242.9619.5929/06/2026
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.052.214.6510.80NoNo 25.0129/06/2026
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment011.5011.5011.506.004.0053.67
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
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.
ORC Ref  04140004UVU Issued on 08/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org