Non Spin/HSFClub Certificate2026
Midnight BatFIN 1257
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 Angles45.2°42.8°40.5°39.0°37.5°36.7°36.4°36.4°37.4°
Beat VMG2.223.193.904.394.704.854.924.964.88
52°3.464.835.746.256.526.676.766.806.80
60°3.695.075.956.406.666.816.926.997.01
75°3.835.196.076.516.776.967.117.317.38
90°3.685.066.006.496.787.007.207.577.85
110°3.054.445.516.266.686.977.237.798.33
120°2.854.205.276.096.576.887.157.748.43
135°2.463.704.755.616.266.656.937.478.17
150°2.073.144.135.005.746.306.667.187.74
Run VMG1.792.723.584.365.065.716.236.867.35
Gybe Angles144.2°146.9°151.0°156.4°164.0°171.8°177.7°179.2°179.0°
APH ToD:634.2CDL: 8.044APH ToT: 0.9461CertNo:
BOAT
ClassGuy 33DesignerGuy-Christer LönngBuilderAge date01/1978Series date01/1978Offset fileL1337.BOFData fileFIN1257
HULL
Length Overall10.120 mMaximum Beam2.952 mDraft1.854 mDisplacement3,700 kgDLR6.7001IMS DivisionCruiser/RacerDynamic Allowance0.340%Age Allowance0.650%RS Assessment-0.331%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.390m
CREW
Maximum weight400 kg(declared)Minimum weight270 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail19.5019.82Headsail Luffed27.1227.12Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail5.68Storm Jib7.29Heavy Weather Jib19.68
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting Moment 61.9 kg·m Stability Index 113.7
COMMENTS
ex Keo
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  04140004JH5 Issued on 31/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Midnight BatFIN 1257
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 VMG1623.91127.7923.3819.3766.1741.9731.4726.1737.9
52°1042.0744.7627.5575.8552.0539.4532.6529.0529.3
60°974.6709.6605.2562.3540.9528.3520.3515.1513.6
75°941.1693.5593.3553.2531.9517.2506.3492.2487.5
90°977.2711.0600.1554.3530.8514.1499.8475.5458.5
110°1178.9810.4653.5574.9538.9516.7498.0462.1432.2
120°1261.8856.4682.6591.3547.8523.0503.4464.8427.1
135°1463.5974.1757.9641.3575.5541.4519.5482.0440.6
150°1740.71146.0871.0720.4627.6571.8540.7501.7464.9
Run VMG2010.01323.31005.1826.1711.0631.0578.0524.6490.0
Selected Courses
Windward / Leeward1817.01225.5964.2822.7738.5686.4654.7625.4614.0
All purpose1363.9937.4753.5659.4607.4576.9558.0534.4518.9
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward777.80.7714
All purpose634.20.9461
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7197
Downwind "popa"0.7501
70% up, 30% down "Ilhabela"0.7286
30% up, 70% down "Ilhabela-inverso"0.7407
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Predominantly Upwind667.90.8983
Predominantly Downwind667.60.8987
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP661.90.9065 Predom. Rc High511.81.1723 5B SF Bay L/M870.50.6893 TriNum AP Low845.50.7097 Predom. Dn Low1102.80.5441 5B SF Bay Med727.40.8249 TriNum AP Med629.40.9534 Predom. Dn L/M775.60.7736 5B SF Bay M/H647.90.9260 TriNum AP High553.91.0833 Predom. Dn Med638.90.9392 5B SF Bay High618.90.9695 TriNum W/L Low1152.90.5204 Predom. Dn M/H558.61.0741 5B AP Low968.20.6197 TriNum W/L Med772.40.7768 Predom. Dn High520.71.1524 5B AP L/M725.80.8266 TriNum W/L Hig651.60.9208 ChiMac Up Low861.40.6965 5B AP Med619.00.9694 Predom. Upwind698.60.8588 ChiMac Up Med769.50.7797 5B AP M/H561.31.0689 Predom. Reaching640.90.9361 ChiMac Up High663.80.9039 5B AP High535.81.1198 Predom. Downwind706.60.8491 ChiMac Off Low925.70.6482 5B W/L Low1308.00.4587 Predom. Up Low993.10.6042 ChiMac Off Med800.50.7495 5B W/L L/M919.50.6525 Predom. Up L/M738.70.8123 ChiMac Off High654.80.9162 5B W/L Med755.60.7941 Predom. Up Med643.50.9324 ChiMac AP Low887.00.6764 5B W/L M/H662.20.9061 Predom. Up M/H596.71.0056 ChiMac AP Med780.40.7688 5B W/L High628.50.9547 Predom. Up High580.11.0343 ChiMac AP High656.50.9139 W/L 60-40 Low1286.60.4664 Predom. Rc Low928.30.6464 BayMac Cove Island1033.20.5807 W/L 60-40 L/M914.30.6562 Predom. Rc L/M684.20.8770 BayMac Shore1020.80.5878 W/L 60-40 Med760.70.7888 Predom. Rc Med590.31.0164 Harvest Moon564.21.0634 W/L 60-40 M/H676.80.8866 Predom. Rc M/H538.51.1142 5B SF Bay Low1079.90.5556 W/L 60-40 High648.60.9251      SA/DSPL Up19.41SA/DSPL Dn19.41
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance692.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating692.00.8670
FinRating, kevyt tuuli1297.10.7709
FinRating, kova tuuli540.00.9259
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8670
Triple Number Coastal/Long Distance Low0.7097
Triple Number Coastal/Long Distance Medium0.9535
Triple Number Coastal/Long Distance High1.0833
Triple Number Windward/Leeward Low0.5480
Triple Number Windward/Leeward Medium0.7768
Triple Number Windward/Leeward High0.9208
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
For information
General Purpose Handicap (GPH)718.2
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Saronikos S All Purpose713.80.8406
Saronikos S Upwind774.30.7749
Saronikos S Downwind664.10.9035
Saronikos N All Purpose760.30.7891
Saronikos N Upwind811.40.7395
Saronikos N Downwind739.50.8114
Saronikos SW All Purpose729.40.8225
Saronikos SW Upwind801.30.7488
Saronikos SW Downwind682.30.8793
Saronikos NE All Purpose810.00.7408
Saronikos NE Upwind768.50.7807
Saronikos NE Downwind852.90.7035
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose661.90.9065
5-Band All Purpose Low1039.60.5771
5-Band All Purpose L/M753.20.7966
5-Band All Purpose Med639.20.9387
5-Band All Purpose M/H576.31.0412
5-Band All Purpose High548.91.0930
Single Number Predominant Upwind665.60.9015
Single Number Predominant Reaching611.30.9816
Single Number Predominant Downwind669.10.8967
5-Band 50-50 Windward/Leeward Low1308.00.4587
5-Band 50-50 Windward/Leeward L/M919.50.6525
5-Band 50-50 Windward/Leeward Med755.60.7941
5-Band 50-50 Windward/Leeward M/H662.20.9061
5-Band 50-50 Windward/Leeward High628.50.9547
5-Band 60-40 Windward/Leeward Low1286.60.4664
5-Band 60-40 Windward/Leeward L/M914.30.6562
5-Band 60-40 Windward/Leeward Med760.70.7888
5-Band 60-40 Windward/Leeward M/H676.80.8866
5-Band 60-40 Windward/Leeward High648.60.9251
Triple Number 50-50 Windward/Leeward Low1152.90.5204
Triple Number 50-50 Windward/Leeward Med772.50.7767
Triple Number 50-50 Windward/Leeward High651.60.9208
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward782.30.7670
Triple Number 60-40 Windward/Leeward Low1137.30.5276
Triple Number 60-40 Windward/Leeward Med776.20.7730
Triple Number 60-40 Windward/Leeward High667.70.8986
Triple Number All-Purpose Low923.90.6494
Triple Number All-Purpose Med650.50.9224
Triple Number All-Purpose High568.31.0558
Triple Number Predominant Upwind Low902.80.6646
Triple Number Predominant Upwind Med656.30.9142
Triple Number Predominant Upwind High594.31.0096
Triple Number Predominant Reaching Low832.80.7204
Triple Number Predominant Reaching Med607.60.9874
Triple Number Predominant Reaching High522.61.1481
Triple Number Predominant Downwind Low968.00.6198
Triple Number Predominant Downwind Med656.70.9136
Triple Number Predominant Downwind High541.21.1087
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low845.4
Triple Number Coastal/Long Distance Medium629.3
Triple Number Coastal/Long Distance High553.9
Triple Number Windward/Leeward Low1094.9
Triple Number Windward/Leeward Medium772.4
Triple Number Windward/Leeward High651.6
Predominantly Upwind667.9
Predominantly Downwind667.6
Predominantly Reaching629.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7097
Triple Number Coastal/Long Distance Medium0.9535
Triple Number Coastal/Long Distance High1.0833
Triple Number Windward/Leeward Low0.5480
Triple Number Windward/Leeward Medium0.7768
Triple Number Windward/Leeward High0.9208
Coastal/Long Distance0.8670
Predominantly Upwind0.8983
Predominantly Downwind0.8987
For information
General Purpose Handicap (GPH)718.2
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9461
Distanseseilas Trippeltall svak vind0.7097
Distanseseilas Trippeltall mellomvind0.9535
Distanseseilas Trippeltall sterk vind1.0833
Pølsebane Trippeltall svak vind0.5480
Pølsebane Trippeltall mellomvind0.7768
Pølsebane Trippeltall sterk vind0.9208
Motvind Singeltall0.8983
Medvind Singeltall0.8987
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Coastal/Long Distance692.00.8670
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind667.90.8983
Predominantly Downwind667.60.8987
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore617.40.9719
Cape Doctor Coastal523.51.1460
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7097
Triple Number Coastal/Long Distance Medium0.9535
Triple Number Coastal/Long Distance High1.0833
Triple Number Windward/Leeward Low0.5480
Triple Number Windward/Leeward Medium0.7768
Triple Number Windward/Leeward High0.9208
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7097
Triple Number Coastal/Long Distance Medium0.9535
Triple Number Coastal/Long Distance High1.0833
Triple Number Windward/Leeward Low0.5480
Triple Number Windward/Leeward Medium0.7768
Triple Number Windward/Leeward High0.9208
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Predominantly Upwind667.90.8983
Predominantly Downwind667.60.8987
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance692.00.8670
Triple Number Coastal/Long Distance Low845.40.7097
Triple Number Coastal/Long Distance Medium629.30.9535
Triple Number Coastal/Long Distance High553.91.0833
Triple Number Windward/Leeward Low1094.90.5480
Triple Number Windward/Leeward Medium772.40.7768
Triple Number Windward/Leeward High651.60.9208
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1836.31235.3909.3742.9647.0598.4564.9515.3496.1
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP661.90.9065 Predom. Dn High520.71.1524 5B AP M/H561.31.0689 TriNum AP Low845.50.7097 Predom. Rc Low928.30.6464 5B AP High535.81.1198 TriNum AP Med629.40.9534 Predom. Rc L/M684.20.8770 5B SF Bay Low1079.90.5556 TriNum AP High553.91.0833 Predom. Rc Med590.31.0164 5B SF Bay L/M870.50.6893 TriNum W/L Low1152.90.5204 Predom. Rc M/H538.51.1142 5B SF Bay Med727.40.8249 TriNum W/L Med772.40.7768 Predom. Rc High511.81.1723 5B SF Bay M/H647.90.9260 TriNum W/L Hig651.60.9208 5B W/L Low1308.00.4587 5B SF Bay High618.90.9695 Predom. Upwind698.60.8588 5B W/L L/M919.50.6525 ChiMac Up Low861.40.6965 Predom. Reaching640.90.9361 5B W/L Med755.60.7941 ChiMac Up Med769.50.7797 Predom. Downwind706.60.8491 5B W/L M/H662.20.9061 ChiMac Up High663.80.9039 Predom. Up Low993.10.6042 5B W/L High628.50.9547 ChiMac Off Low925.70.6482 Predom. Up L/M738.70.8123 W/L 60-40 Low1286.60.4664 ChiMac Off Med800.50.7495 Predom. Up Med643.50.9324 W/L 60-40 L/M914.30.6562 ChiMac Off High654.80.9162 Predom. Up M/H596.71.0056 W/L 60-40 Med760.70.7888 ChiMac AP Low887.00.6764 Predom. Up High580.11.0343 W/L 60-40 M/H676.80.8866 ChiMac AP Med780.40.7688 Predom. Dn Low1102.80.5441 W/L 60-40 High648.60.9251 ChiMac AP High656.50.9139 Predom. Dn L/M775.60.7736 5B AP Low968.20.6197 BayMac Cove Island1033.20.5807 Predom. Dn Med638.90.9392 5B AP L/M725.80.8266 BayMac Shore1020.80.5878 Predom. Dn M/H558.61.0741 5B AP Med619.00.9694 Harvest Moon564.21.0634      SA/DSPL Up19.41SA/DSPL Dn19.41
ORC Ref  04140004JH5 Issued on 31/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Midnight BatFIN 1257
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassGuy 33MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabYes
Length overall10.120Maximum beam2.952Draft1.854Displacement3,700Wetted area18.93IMS L8.490LSM08.204Accomod. length9.594Sink (kg/mm) 13.37
VCGD-0.037VCGM-0.042 RM Rated (kg·m) 61.9Limit of positive stability(°) 112.5 Stability Index 113.7 BLR index 0.0000Default crew weight519 Declared crew weight 400
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.390PBW0.100PIPA0.0024
PSD0.025PHD0.050PHL0.110
PSA17.0°ESL0.790
ST1ST2ST3
ST4ST50.245
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayFixedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysYesCheckstaysNoSpreaders2Rotating mastNo
P10.300IG12.073ISP12.073MDT10.115MDL10.171MDT20.115MDL20.171TL0.000MW0.171GO0.171
E3.150J3.685BAS1.303FSD0.000SFJ0.560SPL3.600WPLTPS0.000BD0.110MWT91.70MCG4.606
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date04/03/2020
SFFP0.500FFMFF1.046LCFcl5.634SG
SAFP8.182FAMFA0.682LCFsh5.824HBI0.797
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004JH5 Issued on 31/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Midnight BatFIN 1257
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20.130.721.262.042.6219.50
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.080.591.152.313.494.6411.67NoNo 27.1216/04/2022
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9.6 mTable area0.44 m²Headroom1.67 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity72 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity42 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04140004JH5 Issued on 31/03/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org