Non Spin/HSFClub 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 VMG1.982.843.453.844.064.144.174.123.88
52°3.114.345.135.645.896.006.056.025.90
60°3.354.575.365.846.086.206.266.266.22
75°3.504.735.546.016.276.436.536.636.64
90°3.394.645.506.026.336.546.726.987.13
110°2.914.195.165.876.296.576.837.287.54
120°2.733.984.965.726.206.526.797.327.76
135°2.373.544.505.305.916.306.597.157.71
150°2.013.043.984.775.455.976.336.877.43
Run VMG1.742.643.464.194.865.465.956.577.09
Gybe Angles146.5°149.6°154.1°162.2°169.4°176.2°178.0°178.9°178.6°
APH ToD:692.1CDL: 6.453APH ToT: 0.8669CertNo:
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 Allowance0.420%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 FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail5.68Storm 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 Moment 47.0 kg·m Stability Index 118.2
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  04140004UVW Issued on 08/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub 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 VMG1821.21266.71043.8936.8887.2869.5862.9873.2927.4
52°1157.5830.0701.3638.1611.1599.6594.7597.6610.1
60°1075.8787.6671.0616.5592.0580.5575.4574.9579.2
75°1027.4761.0649.4599.1574.4560.2551.1542.8542.2
90°1060.9775.6654.5597.6568.6550.1535.9515.6504.6
110°1236.0859.5697.9613.5572.4547.6527.4494.3477.5
120°1318.3903.9726.5629.3580.6552.5530.4491.7463.7
135°1518.41018.3799.4679.8609.6571.4546.2503.5467.2
150°1789.51182.4905.5754.9660.3602.7568.8524.1484.7
Run VMG2066.31365.41041.4858.3740.7659.1605.4548.2507.9
Selected Courses
Windward / Leeward1943.81316.11042.6897.5814.0764.3734.1710.7717.7
All purpose1461.71010.2816.9716.9662.8632.7614.1594.5592.1
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward855.60.7013
All purpose692.10.8669
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6231
Downwind "popa"0.7218
70% up, 30% down "Ilhabela"0.6498
30% up, 70% down "Ilhabela-inverso"0.6891
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Predominantly Upwind742.10.8085
Predominantly Downwind712.70.8419
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP722.50.8304 Predom. Rc High560.31.0709 5B SF Bay L/M949.80.6317 TriNum AP Low913.60.6568 Predom. Dn Low1164.40.5153 5B SF Bay Med804.30.7460 TriNum AP Med686.30.8743 Predom. Dn L/M825.10.7272 5B SF Bay M/H727.90.8243 TriNum AP High611.40.9813 Predom. Dn Med682.60.8789 5B SF Bay High706.60.8491 TriNum W/L Low1241.30.4834 Predom. Dn M/H599.51.0009 5B AP Low1036.60.5788 TriNum W/L Med848.40.7072 Predom. Dn High561.91.0678 5B AP L/M787.40.7620 TriNum W/L Hig732.90.8187 ChiMac Up Low949.20.6321 5B AP Med675.50.8882 Predom. Upwind777.00.7722 ChiMac Up Med852.00.7043 5B AP M/H618.00.9708 Predom. Reaching693.00.8658 ChiMac Up High741.90.8087 5B AP High597.51.0042 Predom. Downwind753.30.7965 ChiMac Off Low980.40.6120 5B W/L Low1404.60.4272 Predom. Up Low1090.00.5505 ChiMac Off Med850.50.7054 5B W/L L/M998.00.6012 Predom. Up L/M815.90.7354 ChiMac Off High699.70.8575 5B W/L Med831.90.7212 Predom. Up Med715.70.8384 ChiMac AP Low958.10.6263 5B W/L M/H742.00.8086 Predom. Up M/H671.10.8940 ChiMac AP Med846.30.7090 5B W/L High716.00.8380 Predom. Up High662.80.9053 ChiMac AP High717.60.8361 W/L 60-40 Low1393.60.4305 Predom. Rc Low998.20.6011 BayMac Cove Island1115.10.5380 W/L 60-40 L/M1001.50.5991 Predom. Rc L/M739.20.8117 BayMac Shore1103.00.5439 W/L 60-40 Med846.30.7090 Predom. Rc Med638.20.9402 Harvest Moon603.50.9943 W/L 60-40 M/H767.20.7821 Predom. Rc M/H584.21.0271 5B SF Bay Low1168.70.5134 W/L 60-40 High748.90.8011      SA/DSPL Up20.46SA/DSPL Dn20.46
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance755.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating755.00.7947
FinRating, kevyt tuuli1390.20.7193
FinRating, kova tuuli602.00.8306
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.7947
Triple Number Coastal/Long Distance Low0.6568
Triple Number Coastal/Long Distance Medium0.8744
Triple Number Coastal/Long Distance High0.9813
Triple Number Windward/Leeward Low0.5088
Triple Number Windward/Leeward Medium0.7072
Triple Number Windward/Leeward High0.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
For information
General Purpose Handicap (GPH)781.8
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Saronikos S All Purpose785.50.7638
Saronikos S Upwind871.30.6887
Saronikos S Downwind697.10.8607
Saronikos N All Purpose840.90.7135
Saronikos N Upwind916.10.6549
Saronikos N Downwind777.90.7713
Saronikos SW All Purpose797.90.7519
Saronikos SW Upwind894.50.6708
Saronikos SW Downwind718.30.8352
Saronikos NE All Purpose884.70.6782
Saronikos NE Upwind858.90.6985
Saronikos NE Downwind896.10.6696
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose722.50.8304
5-Band All Purpose Low1118.80.5363
5-Band All Purpose L/M816.30.7350
5-Band All Purpose Med696.80.8611
5-Band All Purpose M/H633.50.9471
5-Band All Purpose High610.60.9826
Single Number Predominant Upwind739.70.8111
Single Number Predominant Reaching661.30.9074
Single Number Predominant Downwind714.40.8399
5-Band 50-50 Windward/Leeward Low1404.60.4272
5-Band 50-50 Windward/Leeward L/M998.00.6012
5-Band 50-50 Windward/Leeward Med831.90.7212
5-Band 50-50 Windward/Leeward M/H742.00.8086
5-Band 50-50 Windward/Leeward High716.00.8380
5-Band 60-40 Windward/Leeward Low1393.60.4305
5-Band 60-40 Windward/Leeward L/M1001.50.5991
5-Band 60-40 Windward/Leeward Med846.30.7090
5-Band 60-40 Windward/Leeward M/H767.20.7821
5-Band 60-40 Windward/Leeward High748.90.8011
Triple Number 50-50 Windward/Leeward Low1241.30.4834
Triple Number 50-50 Windward/Leeward Med848.60.7071
Triple Number 50-50 Windward/Leeward High732.90.8187
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward869.50.6901
Triple Number 60-40 Windward/Leeward Low1235.20.4857
Triple Number 60-40 Windward/Leeward Med861.40.6966
Triple Number 60-40 Windward/Leeward High760.00.7895
Triple Number All-Purpose Low996.60.6021
Triple Number All-Purpose Med708.40.8469
Triple Number All-Purpose High626.20.9581
Triple Number Predominant Upwind Low990.40.6058
Triple Number Predominant Upwind Med728.60.8235
Triple Number Predominant Upwind High673.80.8904
Triple Number Predominant Reaching Low897.90.6682
Triple Number Predominant Reaching Med658.70.9109
Triple Number Predominant Reaching High566.41.0594
Triple Number Predominant Downwind Low1025.90.5849
Triple Number Predominant Downwind Med699.10.8583
Triple Number Predominant Downwind High577.21.0396
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low913.5
Triple Number Coastal/Long Distance Medium686.2
Triple Number Coastal/Long Distance High611.4
Triple Number Windward/Leeward Low1179.2
Triple Number Windward/Leeward Medium848.4
Triple Number Windward/Leeward High732.9
Predominantly Upwind742.1
Predominantly Downwind712.7
Predominantly Reaching676.6
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6568
Triple Number Coastal/Long Distance Medium0.8744
Triple Number Coastal/Long Distance High0.9813
Triple Number Windward/Leeward Low0.5088
Triple Number Windward/Leeward Medium0.7072
Triple Number Windward/Leeward High0.8187
Coastal/Long Distance0.7947
Predominantly Upwind0.8085
Predominantly Downwind0.8419
For information
General Purpose Handicap (GPH)781.8
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.8669
Distanseseilas Trippeltall svak vind0.6568
Distanseseilas Trippeltall mellomvind0.8744
Distanseseilas Trippeltall sterk vind0.9813
Pølsebane Trippeltall svak vind0.5088
Pølsebane Trippeltall mellomvind0.7072
Pølsebane Trippeltall sterk vind0.8187
Motvind Singeltall0.8085
Medvind Singeltall0.8419
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Coastal/Long Distance755.00.7947
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind742.10.8085
Predominantly Downwind712.70.8419
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore715.60.8385
Cape Doctor Coastal592.81.0121
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6568
Triple Number Coastal/Long Distance Medium0.8744
Triple Number Coastal/Long Distance High0.9813
Triple Number Windward/Leeward Low0.5088
Triple Number Windward/Leeward Medium0.7072
Triple Number Windward/Leeward High0.8187
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6568
Triple Number Coastal/Long Distance Medium0.8744
Triple Number Coastal/Long Distance High0.9813
Triple Number Windward/Leeward Low0.5088
Triple Number Windward/Leeward Medium0.7072
Triple Number Windward/Leeward High0.8187
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Predominantly Upwind742.10.8085
Predominantly Downwind712.70.8419
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance755.00.7947
Triple Number Coastal/Long Distance Low913.50.6568
Triple Number Coastal/Long Distance Medium686.20.8744
Triple Number Coastal/Long Distance High611.40.9813
Triple Number Windward/Leeward Low1179.20.5088
Triple Number Windward/Leeward Medium848.40.7072
Triple Number Windward/Leeward High732.90.8187
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1956.01321.0982.0808.8709.1657.2620.0564.3553.7
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP722.50.8304 Predom. Dn High561.91.0678 5B AP M/H618.00.9708 TriNum AP Low913.60.6568 Predom. Rc Low998.20.6011 5B AP High597.51.0042 TriNum AP Med686.30.8743 Predom. Rc L/M739.20.8117 5B SF Bay Low1168.70.5134 TriNum AP High611.40.9813 Predom. Rc Med638.20.9402 5B SF Bay L/M949.80.6317 TriNum W/L Low1241.30.4834 Predom. Rc M/H584.21.0271 5B SF Bay Med804.30.7460 TriNum W/L Med848.40.7072 Predom. Rc High560.31.0709 5B SF Bay M/H727.90.8243 TriNum W/L Hig732.90.8187 5B W/L Low1404.60.4272 5B SF Bay High706.60.8491 Predom. Upwind777.00.7722 5B W/L L/M998.00.6012 ChiMac Up Low949.20.6321 Predom. Reaching693.00.8658 5B W/L Med831.90.7212 ChiMac Up Med852.00.7043 Predom. Downwind753.30.7965 5B W/L M/H742.00.8086 ChiMac Up High741.90.8087 Predom. Up Low1090.00.5505 5B W/L High716.00.8380 ChiMac Off Low980.40.6120 Predom. Up L/M815.90.7354 W/L 60-40 Low1393.60.4305 ChiMac Off Med850.50.7054 Predom. Up Med715.70.8384 W/L 60-40 L/M1001.50.5991 ChiMac Off High699.70.8575 Predom. Up M/H671.10.8940 W/L 60-40 Med846.30.7090 ChiMac AP Low958.10.6263 Predom. Up High662.80.9053 W/L 60-40 M/H767.20.7821 ChiMac AP Med846.30.7090 Predom. Dn Low1164.40.5153 W/L 60-40 High748.90.8011 ChiMac AP High717.60.8361 Predom. Dn L/M825.10.7272 5B AP Low1036.60.5788 BayMac Cove Island1115.10.5380 Predom. Dn Med682.60.8789 5B AP L/M787.40.7620 BayMac Shore1103.00.5439 Predom. Dn M/H599.51.0009 5B AP Med675.50.8882 Harvest Moon603.50.9943      SA/DSPL Up20.46SA/DSPL Dn20.46
ORC Ref  04140004UVW Issued on 08/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub 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 L7.240LSM07.169Accomod. length9.141Sink (kg/mm) 11.43
VCGD-0.034VCGM-0.009 RM Rated (kg·m) 47.0Limit of positive stability(°) 121.7 Stability Index 118.2 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
SAFP8.617FAMFA0.903LCFsh5.415HBI1.012
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004UVW Issued on 08/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub 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
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  04140004UVW Issued on 08/07/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org