Club 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 Angles46.9°44.2°41.8°40.1°39.0°38.3°38.0°37.8°38.6°
Beat VMG2.313.334.084.594.895.025.115.175.14
52°3.665.136.096.666.947.087.157.237.25
60°3.965.426.356.867.127.277.347.437.46
75°4.175.616.547.027.307.487.617.767.84
90°4.085.706.727.217.467.617.778.078.27
110°4.115.776.857.387.738.038.308.719.07
120°3.965.596.727.307.698.058.419.169.68
135°3.434.966.146.967.417.798.189.1110.42
150°2.834.155.266.226.937.377.728.469.44
Run VMG2.453.594.565.386.106.697.177.868.57
Gybe Angles137.6°142.2°146.9°148.7°157.3°169.6°177.7°178.6°177.7°
APH ToD:565.4CDL: 8.995APH ToT: 1.0612CertNo:
BOAT
ClassSirena 38DesignerHåkan SödergrenBuilderLito MarinAge date01/1983Series date01/1980Offset fileL5530.BOFData fileFIN4350
HULL
Length Overall11.620 mMaximum Beam3.134 mDraft1.777 mDisplacement5,425 kgDLR6.0584IMS DivisionCruiser/RacerDynamic Allowance0.230%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.408m
CREW
Maximum weight653 kg(default)Minimum weight523 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail35.8736.30Headsail Luffed27.3627.36Headsail FlyingSymmetric77.8777.87Asymmetric86.2586.25 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail11.27Storm Jib8.07Heavy Weather Jib21.78
SAIL LIMITS
Headsails5Spinnakers4
✱ Asymmetric may be tacked on the pole
STABILITY
Righting Moment 89.7 kg·m Stability Index 123.5
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  04140004R0T Issued on 24/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club 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 VMG1555.61081.8883.0783.6736.9716.6705.1696.1700.6
52°983.4702.3591.3540.3518.5508.6503.2497.8496.8
60°909.4663.8566.7524.7505.5495.5490.2484.2482.3
75°863.2641.7550.7512.8493.4481.1472.8464.0459.2
90°882.3631.8535.7499.3482.8473.0463.2445.9435.2
110°875.4624.3525.3487.9465.6448.4433.8413.5396.9
120°909.0644.0535.8493.1467.9447.0427.9393.0371.8
135°1048.2726.0586.0517.5485.5461.8439.9395.2345.5
150°1270.8867.6684.3579.1519.1488.6466.2425.4381.3
Run VMG1467.41001.9790.2668.7590.5538.3502.2458.2420.0
Selected Courses
Windward / Leeward1511.51041.9836.6726.1663.7627.5603.7577.1560.3
All purpose1136.2796.4652.9582.6545.5524.2509.0487.4471.1
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward694.80.8635
All purpose565.41.0612
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7496
Downwind "popa"0.9231
70% up, 30% down "Ilhabela"0.7944
30% up, 70% down "Ilhabela-inverso"0.8631
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Predominantly Upwind613.70.9776
Predominantly Downwind570.91.0510
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP589.11.0184 Predom. Rc High462.71.2969 5B SF Bay L/M764.20.7851 TriNum AP Low724.60.8280 Predom. Dn Low877.80.6836 5B SF Bay Med654.90.9162 TriNum AP Med561.61.0685 Predom. Dn L/M644.20.9314 5B SF Bay M/H595.01.0085 TriNum AP High504.71.1889 Predom. Dn Med551.21.0886 5B SF Bay High567.61.0571 TriNum W/L Low985.40.6089 Predom. Dn M/H493.91.2148 5B AP Low804.60.7457 TriNum W/L Med689.90.8697 Predom. Dn High458.81.3078 5B AP L/M633.40.9473 TriNum W/L Hig599.71.0005 ChiMac Up Low780.00.7692 5B AP Med554.01.0830 Predom. Upwind641.20.9357 ChiMac Up Med701.90.8548 5B AP M/H511.01.1742 Predom. Reaching563.41.0649 ChiMac Up High611.60.9811 5B AP High488.31.2288 Predom. Downwind597.51.0042 ChiMac Off Low753.40.7964 5B W/L Low1108.00.5415 Predom. Up Low892.10.6726 ChiMac Off Med664.90.9024 5B W/L L/M802.40.7478 Predom. Up L/M672.40.8923 ChiMac Off High560.01.0714 5B W/L Med677.40.8857 Predom. Up Med594.21.0098 ChiMac AP Low762.90.7865 5B W/L M/H608.30.9864 Predom. Up M/H556.71.0777 ChiMac AP Med680.80.8813 5B W/L High578.81.0366 Predom. Up High540.21.1107 ChiMac AP High584.21.0270 W/L 60-40 Low1116.50.5374 Predom. Rc Low782.10.7671 BayMac Cove Island881.00.6810 W/L 60-40 L/M813.00.7380 Predom. Rc L/M592.61.0125 BayMac Shore874.00.6865 W/L 60-40 Med692.10.8669 Predom. Rc Med525.41.1419 Harvest Moon498.41.2037 W/L 60-40 M/H628.30.9550 Predom. Rc M/H487.51.2308 5B SF Bay Low930.10.6451 W/L 60-40 High602.70.9954      SA/DSPL Up20.37SA/DSPL Dn39.33
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance615.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating615.80.9743
FinRating, kevyt tuuli1089.50.9179
FinRating, kova tuuli491.01.0182
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9743
Triple Number Coastal/Long Distance Low0.8280
Triple Number Coastal/Long Distance Medium1.0686
Triple Number Coastal/Long Distance High1.1889
Triple Number Windward/Leeward Low0.6388
Triple Number Windward/Leeward Medium0.8697
Triple Number Windward/Leeward High1.0005
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
For information
General Purpose Handicap (GPH)634.2
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Saronikos S All Purpose648.00.9259
Saronikos S Upwind733.00.8186
Saronikos S Downwind542.51.1060
Saronikos N All Purpose678.10.8848
Saronikos N Upwind765.70.7836
Saronikos N Downwind590.01.0170
Saronikos SW All Purpose653.50.9182
Saronikos SW Upwind754.40.7953
Saronikos SW Downwind548.91.0931
Saronikos NE All Purpose701.70.8551
Saronikos NE Upwind718.70.8348
Saronikos NE Downwind660.20.9088
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose589.11.0184
5-Band All Purpose Low880.50.6814
5-Band All Purpose L/M656.10.9145
5-Band All Purpose Med571.61.0497
5-Band All Purpose M/H524.91.1431
5-Band All Purpose High499.51.2011
Single Number Predominant Upwind612.50.9795
Single Number Predominant Reaching540.21.1106
Single Number Predominant Downwind571.51.0499
5-Band 50-50 Windward/Leeward Low1108.00.5415
5-Band 50-50 Windward/Leeward L/M802.40.7478
5-Band 50-50 Windward/Leeward Med677.40.8857
5-Band 50-50 Windward/Leeward M/H608.30.9864
5-Band 50-50 Windward/Leeward High578.81.0366
5-Band 60-40 Windward/Leeward Low1116.50.5374
5-Band 60-40 Windward/Leeward L/M813.00.7380
5-Band 60-40 Windward/Leeward Med692.10.8669
5-Band 60-40 Windward/Leeward M/H628.30.9550
5-Band 60-40 Windward/Leeward High602.70.9954
Triple Number 50-50 Windward/Leeward Low985.40.6089
Triple Number 50-50 Windward/Leeward Med690.00.8696
Triple Number 50-50 Windward/Leeward High599.71.0005
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward709.60.8455
Triple Number 60-40 Windward/Leeward Low994.30.6034
Triple Number 60-40 Windward/Leeward Med703.90.8524
Triple Number 60-40 Windward/Leeward High620.70.9667
Triple Number All-Purpose Low788.90.7606
Triple Number All-Purpose Med579.71.0351
Triple Number All-Purpose High517.91.1584
Triple Number Predominant Upwind Low808.90.7417
Triple Number Predominant Upwind Med604.00.9934
Triple Number Predominant Upwind High557.81.0757
Triple Number Predominant Reaching Low708.90.8464
Triple Number Predominant Reaching Med540.51.1101
Triple Number Predominant Reaching High472.71.2693
Triple Number Predominant Downwind Low782.60.7667
Triple Number Predominant Downwind Med560.61.0702
Triple Number Predominant Downwind High474.71.2638
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low724.6
Triple Number Coastal/Long Distance Medium561.5
Triple Number Coastal/Long Distance High504.7
Triple Number Windward/Leeward Low939.3
Triple Number Windward/Leeward Medium689.9
Triple Number Windward/Leeward High599.7
Predominantly Upwind613.7
Predominantly Downwind570.9
Predominantly Reaching548.5
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8280
Triple Number Coastal/Long Distance Medium1.0686
Triple Number Coastal/Long Distance High1.1889
Triple Number Windward/Leeward Low0.6388
Triple Number Windward/Leeward Medium0.8697
Triple Number Windward/Leeward High1.0005
Coastal/Long Distance0.9743
Predominantly Upwind0.9776
Predominantly Downwind1.0510
For information
General Purpose Handicap (GPH)634.2
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0612
Distanseseilas Trippeltall svak vind0.8280
Distanseseilas Trippeltall mellomvind1.0686
Distanseseilas Trippeltall sterk vind1.1889
Pølsebane Trippeltall svak vind0.6388
Pølsebane Trippeltall mellomvind0.8697
Pølsebane Trippeltall sterk vind1.0005
Motvind Singeltall0.9776
Medvind Singeltall1.0510
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Coastal/Long Distance615.80.9743
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind613.70.9776
Predominantly Downwind570.91.0510
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore565.41.0613
Cape Doctor Coastal476.01.2606
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8280
Triple Number Coastal/Long Distance Medium1.0686
Triple Number Coastal/Long Distance High1.1889
Triple Number Windward/Leeward Low0.6388
Triple Number Windward/Leeward Medium0.8697
Triple Number Windward/Leeward High1.0005
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8280
Triple Number Coastal/Long Distance Medium1.0686
Triple Number Coastal/Long Distance High1.1889
Triple Number Windward/Leeward Low0.6388
Triple Number Windward/Leeward Medium0.8697
Triple Number Windward/Leeward High1.0005
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Predominantly Upwind613.70.9776
Predominantly Downwind570.91.0510
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance615.80.9743
Triple Number Coastal/Long Distance Low724.60.8280
Triple Number Coastal/Long Distance Medium561.51.0686
Triple Number Coastal/Long Distance High504.71.1889
Triple Number Windward/Leeward Low939.30.6388
Triple Number Windward/Leeward Medium689.90.8697
Triple Number Windward/Leeward High599.71.0005
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1507.11037.9785.4655.3581.8543.8514.3466.5450.8
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP589.11.0184 Predom. Dn High458.81.3078 5B AP M/H511.01.1742 TriNum AP Low724.60.8280 Predom. Rc Low782.10.7671 5B AP High488.31.2288 TriNum AP Med561.61.0685 Predom. Rc L/M592.61.0125 5B SF Bay Low930.10.6451 TriNum AP High504.71.1889 Predom. Rc Med525.41.1419 5B SF Bay L/M764.20.7851 TriNum W/L Low985.40.6089 Predom. Rc M/H487.51.2308 5B SF Bay Med654.90.9162 TriNum W/L Med689.90.8697 Predom. Rc High462.71.2969 5B SF Bay M/H595.01.0085 TriNum W/L Hig599.71.0005 5B W/L Low1108.00.5415 5B SF Bay High567.61.0571 Predom. Upwind641.20.9357 5B W/L L/M802.40.7478 ChiMac Up Low780.00.7692 Predom. Reaching563.41.0649 5B W/L Med677.40.8857 ChiMac Up Med701.90.8548 Predom. Downwind597.51.0042 5B W/L M/H608.30.9864 ChiMac Up High611.60.9811 Predom. Up Low892.10.6726 5B W/L High578.81.0366 ChiMac Off Low753.40.7964 Predom. Up L/M672.40.8923 W/L 60-40 Low1116.50.5374 ChiMac Off Med664.90.9024 Predom. Up Med594.21.0098 W/L 60-40 L/M813.00.7380 ChiMac Off High560.01.0714 Predom. Up M/H556.71.0777 W/L 60-40 Med692.10.8669 ChiMac AP Low762.90.7865 Predom. Up High540.21.1107 W/L 60-40 M/H628.30.9550 ChiMac AP Med680.80.8813 Predom. Dn Low877.80.6836 W/L 60-40 High602.70.9954 ChiMac AP High584.21.0270 Predom. Dn L/M644.20.9314 5B AP Low804.60.7457 BayMac Cove Island881.00.6810 Predom. Dn Med551.21.0886 5B AP L/M633.40.9473 BayMac Shore874.00.6865 Predom. Dn M/H493.91.2148 5B AP Med554.01.0830 Harvest Moon498.41.2037      SA/DSPL Up20.37SA/DSPL Dn39.33
ORC Ref  04140004R0T Issued on 24/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club 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 beam3.134Draft1.777Displacement5,425Wetted area23.85IMS L9.779LSM09.638Accomod. length10.185Sink (kg/mm) 17.55
VCGD-0.085VCGM-0.042 RM Rated (kg·m) 89.7Limit of positive stability(°) 118.7 Stability Index 123.5 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
SFFP0.946FFMFF1.232LCFcl6.717SG
SAFP10.393FAMFA0.923LCFsh6.898HBI1.090
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004R0T Issued on 24/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club 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
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment012.8012.8012.807.506.5077.8721/04/2026
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment013.7613.0813.427.926.88115%86.25
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  04140004R0T Issued on 24/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org