Non Spin/HSFClub Certificate2026
Sirja IIIFin 4350
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 Angles47.0°44.2°41.6°40.1°39.1°38.5°38.2°38.1°38.9°
Beat VMG2.323.344.084.584.865.005.075.145.09
52°3.675.136.096.656.937.067.137.207.22
60°3.975.436.356.857.117.257.327.417.43
75°4.185.626.547.027.297.477.607.747.81
90°4.055.506.487.027.337.577.778.068.24
110°3.424.906.026.797.247.557.848.388.89
120°3.154.605.726.577.107.447.758.359.01
135°2.663.995.116.026.717.167.488.088.76
150°2.223.374.435.356.146.767.187.778.37
Run VMG1.922.923.844.685.466.176.757.478.04
Gybe Angles143.0°146.7°151.4°158.2°176.2°177.5°178.6°179.3°179.3°
APH ToD:595.7CDL: 8.955APH ToT: 1.0072CertNo:
BOAT
ClassSirena 38DesignerHåkan SödergrenBuilderLito MarinAge date01/1983Series date01/1980Offset fileL5530.BOFData fileFIN4350
HULL
Length Overall11.620 mMaximum Beam3.134 mDraft1.778 mDisplacement5,425 kgDLR6.0533IMS DivisionCruiser/RacerDynamic Allowance0.300%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.408m
CREW
Maximum weight600 kg(declared)Minimum weight470 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail35.8736.30Headsail Luffed27.3627.36Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail11.27Storm Jib8.07Heavy Weather Jib21.78
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting Moment 90.2 kg·m Stability Index 123.9
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  04140004R17 Issued on 24/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Sirja IIIFin 4350
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 VMG1551.71079.4882.3785.3740.5720.6709.4701.0706.7
52°980.8701.2591.6541.2519.8510.3504.9499.7498.9
60°906.9662.7567.0525.3506.4496.8491.7485.9484.2
75°860.6640.2550.8513.2493.9481.9473.9465.4460.9
90°888.9654.4555.3512.9491.0475.6463.6446.8436.7
110°1053.3734.1598.4530.0497.4476.6459.2429.8404.7
120°1142.2781.8629.0547.6507.3483.7464.8431.4399.5
135°1351.6901.9704.6598.2536.2502.9481.3445.8411.1
150°1620.31067.8812.2672.6586.2532.5501.7463.2430.0
Run VMG1871.01233.0936.8769.3659.6583.7533.6482.1447.6
Selected Courses
Windward / Leeward1711.41156.2909.6777.3700.0652.2621.5591.5577.1
All purpose1269.4875.8705.7618.5571.1543.3525.4503.5489.0
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward736.40.8148
All purpose595.71.0072
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7475
Downwind "popa"0.8080
70% up, 30% down "Ilhabela"0.7647
30% up, 70% down "Ilhabela-inverso"0.7889
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Predominantly Upwind632.00.9493
Predominantly Downwind623.20.9628
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP621.80.9650 Predom. Rc High480.21.2494 5B SF Bay L/M822.20.7297 TriNum AP Low790.80.7588 Predom. Dn Low1026.90.5843 5B SF Bay Med689.80.8698 TriNum AP Med591.21.0149 Predom. Dn L/M724.00.8287 5B SF Bay M/H615.50.9747 TriNum AP High521.61.1502 Predom. Dn Med596.51.0059 5B SF Bay High586.21.0236 TriNum W/L Low1087.50.5517 Predom. Dn M/H520.91.1518 5B AP Low899.20.6673 TriNum W/L Med731.30.8205 Predom. Dn High485.31.2362 5B AP L/M680.10.8822 TriNum W/L Hig617.90.9710 ChiMac Up Low812.50.7385 5B AP Med581.71.0315 Predom. Upwind660.60.9082 ChiMac Up Med726.90.8254 5B AP M/H528.51.1352 Predom. Reaching598.31.0028 ChiMac Up High628.40.9548 5B AP High504.81.1886 Predom. Downwind659.10.9103 ChiMac Off Low863.00.6953 5B W/L Low1233.30.4865 Predom. Up Low935.20.6416 ChiMac Off Med746.60.8037 5B W/L L/M868.30.6910 Predom. Up L/M697.10.8608 ChiMac Off High611.10.9819 5B W/L Med715.80.8383 Predom. Up Med609.20.9848 ChiMac AP Low831.20.7218 5B W/L M/H628.20.9550 Predom. Up M/H566.61.0590 ChiMac AP Med732.10.8196 5B W/L High594.21.0097 Predom. Up High550.31.0903 ChiMac AP High616.90.9726 W/L 60-40 Low1216.30.4933 Predom. Rc Low862.90.6953 BayMac Cove Island970.10.6185 W/L 60-40 L/M865.90.6929 Predom. Rc L/M638.50.9398 BayMac Shore958.20.6262 W/L 60-40 Med723.40.8294 Predom. Rc Med551.51.0879 Harvest Moon525.11.1425 W/L 60-40 M/H645.10.9301 Predom. Rc M/H503.81.1910 5B SF Bay Low1017.70.5896 W/L 60-40 High616.10.9739      SA/DSPL Up20.37SA/DSPL Dn20.37
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance651.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating651.90.9204
FinRating, kevyt tuuli1219.10.8203
FinRating, kova tuuli508.30.9837
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9204
Triple Number Coastal/Long Distance Low0.7588
Triple Number Coastal/Long Distance Medium1.0150
Triple Number Coastal/Long Distance High1.1502
Triple Number Windward/Leeward Low0.5809
Triple Number Windward/Leeward Medium0.8205
Triple Number Windward/Leeward High0.9710
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
For information
General Purpose Handicap (GPH)673.9
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Saronikos S All Purpose672.10.8927
Saronikos S Upwind735.20.8161
Saronikos S Downwind611.90.9806
Saronikos N All Purpose715.30.8388
Saronikos N Upwind769.00.7803
Saronikos N Downwind682.20.8795
Saronikos SW All Purpose684.70.8763
Saronikos SW Upwind757.20.7924
Saronikos SW Downwind628.80.9543
Saronikos NE All Purpose756.60.7930
Saronikos NE Upwind722.70.8302
Saronikos NE Downwind783.60.7657
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose621.80.9650
5-Band All Purpose Low972.70.6168
5-Band All Purpose L/M706.60.8492
5-Band All Purpose Med600.70.9988
5-Band All Purpose M/H542.31.1065
5-Band All Purpose High516.61.1615
Single Number Predominant Upwind629.80.9527
Single Number Predominant Reaching571.01.0507
Single Number Predominant Downwind624.60.9606
5-Band 50-50 Windward/Leeward Low1233.30.4865
5-Band 50-50 Windward/Leeward L/M868.30.6910
5-Band 50-50 Windward/Leeward Med715.80.8383
5-Band 50-50 Windward/Leeward M/H628.20.9550
5-Band 50-50 Windward/Leeward High594.21.0097
5-Band 60-40 Windward/Leeward Low1216.30.4933
5-Band 60-40 Windward/Leeward L/M865.90.6929
5-Band 60-40 Windward/Leeward Med723.40.8294
5-Band 60-40 Windward/Leeward M/H645.10.9301
5-Band 60-40 Windward/Leeward High616.10.9739
Triple Number 50-50 Windward/Leeward Low1087.50.5517
Triple Number 50-50 Windward/Leeward Med731.40.8203
Triple Number 50-50 Windward/Leeward High617.90.9710
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward743.40.8071
Triple Number 60-40 Windward/Leeward Low1075.60.5578
Triple Number 60-40 Windward/Leeward Med737.60.8135
Triple Number 60-40 Windward/Leeward High636.20.9432
Triple Number All-Purpose Low865.30.6934
Triple Number All-Purpose Med611.20.9817
Triple Number All-Purpose High534.81.1220
Triple Number Predominant Upwind Low849.80.7061
Triple Number Predominant Upwind Med620.90.9664
Triple Number Predominant Upwind High565.21.0615
Triple Number Predominant Reaching Low775.90.7732
Triple Number Predominant Reaching Med568.51.0554
Triple Number Predominant Reaching High488.71.2278
Triple Number Predominant Downwind Low902.40.6649
Triple Number Predominant Downwind Med612.60.9794
Triple Number Predominant Downwind High503.21.1923
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low790.7
Triple Number Coastal/Long Distance Medium591.1
Triple Number Coastal/Long Distance High521.6
Triple Number Windward/Leeward Low1032.9
Triple Number Windward/Leeward Medium731.3
Triple Number Windward/Leeward High617.9
Predominantly Upwind632.0
Predominantly Downwind623.2
Predominantly Reaching587.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7588
Triple Number Coastal/Long Distance Medium1.0150
Triple Number Coastal/Long Distance High1.1502
Triple Number Windward/Leeward Low0.5809
Triple Number Windward/Leeward Medium0.8205
Triple Number Windward/Leeward High0.9710
Coastal/Long Distance0.9204
Predominantly Upwind0.9493
Predominantly Downwind0.9628
For information
General Purpose Handicap (GPH)673.9
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0072
Distanseseilas Trippeltall svak vind0.7588
Distanseseilas Trippeltall mellomvind1.0150
Distanseseilas Trippeltall sterk vind1.1502
Pølsebane Trippeltall svak vind0.5809
Pølsebane Trippeltall mellomvind0.8205
Pølsebane Trippeltall sterk vind0.9710
Motvind Singeltall0.9493
Medvind Singeltall0.9628
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Coastal/Long Distance651.90.9204
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind632.00.9493
Predominantly Downwind623.20.9628
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore581.41.0319
Cape Doctor Coastal493.31.2162
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7588
Triple Number Coastal/Long Distance Medium1.0150
Triple Number Coastal/Long Distance High1.1502
Triple Number Windward/Leeward Low0.5809
Triple Number Windward/Leeward Medium0.8205
Triple Number Windward/Leeward High0.9710
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7588
Triple Number Coastal/Long Distance Medium1.0150
Triple Number Coastal/Long Distance High1.1502
Triple Number Windward/Leeward Low0.5809
Triple Number Windward/Leeward Medium0.8205
Triple Number Windward/Leeward High0.9710
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Predominantly Upwind632.00.9493
Predominantly Downwind623.20.9628
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low790.70.7588
Triple Number Coastal/Long Distance Medium591.11.0150
Triple Number Coastal/Long Distance High521.61.1502
Triple Number Windward/Leeward Low1032.90.5809
Triple Number Windward/Leeward Medium731.30.8205
Triple Number Windward/Leeward High617.90.9710
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1727.31163.9855.8699.4610.2564.0531.3483.3466.7
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP621.80.9650 Predom. Dn High485.31.2362 5B AP M/H528.51.1352 TriNum AP Low790.80.7588 Predom. Rc Low862.90.6953 5B AP High504.81.1886 TriNum AP Med591.21.0149 Predom. Rc L/M638.50.9398 5B SF Bay Low1017.70.5896 TriNum AP High521.61.1502 Predom. Rc Med551.51.0879 5B SF Bay L/M822.20.7297 TriNum W/L Low1087.50.5517 Predom. Rc M/H503.81.1910 5B SF Bay Med689.80.8698 TriNum W/L Med731.30.8205 Predom. Rc High480.21.2494 5B SF Bay M/H615.50.9747 TriNum W/L Hig617.90.9710 5B W/L Low1233.30.4865 5B SF Bay High586.21.0236 Predom. Upwind660.60.9082 5B W/L L/M868.30.6910 ChiMac Up Low812.50.7385 Predom. Reaching598.31.0028 5B W/L Med715.80.8383 ChiMac Up Med726.90.8254 Predom. Downwind659.10.9103 5B W/L M/H628.20.9550 ChiMac Up High628.40.9548 Predom. Up Low935.20.6416 5B W/L High594.21.0097 ChiMac Off Low863.00.6953 Predom. Up L/M697.10.8608 W/L 60-40 Low1216.30.4933 ChiMac Off Med746.60.8037 Predom. Up Med609.20.9848 W/L 60-40 L/M865.90.6929 ChiMac Off High611.10.9819 Predom. Up M/H566.61.0590 W/L 60-40 Med723.40.8294 ChiMac AP Low831.20.7218 Predom. Up High550.31.0903 W/L 60-40 M/H645.10.9301 ChiMac AP Med732.10.8196 Predom. Dn Low1026.90.5843 W/L 60-40 High616.10.9739 ChiMac AP High616.90.9726 Predom. Dn L/M724.00.8287 5B AP Low899.20.6673 BayMac Cove Island970.10.6185 Predom. Dn Med596.51.0059 5B AP L/M680.10.8822 BayMac Shore958.20.6262 Predom. Dn M/H520.91.1518 5B AP Med581.71.0315 Harvest Moon525.11.1425      SA/DSPL Up20.37SA/DSPL Dn20.37
ORC Ref  04140004R17 Issued on 24/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Sirja IIIFin 4350
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSirena 38MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall11.620Maximum beam3.134Draft1.778Displacement5,425Wetted area23.87IMS L9.776LSM09.640Accomod. length10.185Sink (kg/mm) 17.62
VCGD-0.087VCGM-0.045 RM Rated (kg·m) 90.2Limit of positive stability(°) 119.1 Stability Index 123.9 BLR index 0.0000Default crew weight653 Declared crew weight 600
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.408PBW0.105PIPA0.0037
EDL1.300ST10.080ST20.150
ST30.150ST40.100ST50.280
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P13.700IG12.700ISP12.750MDT10.110MDL10.160MDT20.090MDL20.115TL2.000MWGO
E4.700J4.160BAS1.400FSDFoilSFJSPL4.060WPLTPS0.000BDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date08/04/2020
SFFP0.946FFMFF1.249LCFcl6.758SG
SAFP10.393FAMFA0.912LCFsh6.937HBI1.097
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004R17 Issued on 24/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Sirja IIIFin 4350
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.070.831.522.753.8035.8721/04/2026
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment04.4112.19NoNo 27.3621/04/2026
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length10.2 mTable area0.44 m²Headroom1.72 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity84 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity54 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04140004R17 Issued on 24/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org