Double HandedClub Certificate2026
HattiwattiFIN 3464
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 Angles46.0°42.3°40.4°39.6°39.2°39.0°39.0°39.7°42.0°
Beat VMG2.433.373.944.214.324.374.404.384.18
52°3.805.055.766.066.176.236.276.296.22
60°4.075.295.956.236.346.416.466.506.47
75°4.265.456.096.396.566.656.736.846.86
90°4.165.396.096.456.686.867.007.217.34
110°3.865.286.146.566.857.077.247.557.77
120°3.705.116.036.526.877.217.547.988.35
135°3.204.585.606.296.707.077.488.449.55
150°2.633.834.885.776.376.757.128.029.36
Run VMG2.283.324.235.025.726.226.607.308.22
Gybe Angles136.9°146.0°151.4°154.1°163.3°172.3°177.7°176.8°163.1°
APH ToD:624.1CDL: 7.004APH ToT: 0.9614CertNo:
BOAT
ClassInferno 29DesignerHåkan SödergrenBuilderNa-BoatsAge date01/1984Series date01/1981Offset fileINFERNO29.offData fileFIN3464
HULL
Length Overall8.800 mMaximum Beam2.514 mDraft1.534 mDisplacement2,678 kgDLR6.3321IMS DivisionCruiser/RacerDynamic Allowance0.000%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight211 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail26.6427.29Headsail Luffed23.5423.54Headsail FlyingSymmetric53.0553.05Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail7.70Storm Jib5.11Heavy Weather Jib13.79
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 45.2 kg·m Stability Index 128.5
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  04140004TR8 Issued on 22/06/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
HattiwattiFIN 3464
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 VMG1481.81069.7914.2856.0833.4823.7818.1822.7860.8
52°946.3712.5624.8594.5583.7578.3574.4572.0579.2
60°884.4681.2604.9577.9567.6562.0557.6553.8556.3
75°844.6660.4591.3563.6548.9541.0534.9526.6524.6
90°865.4668.4591.3558.6538.8524.6514.1499.4490.7
110°932.1681.5586.4549.0525.3509.0497.0476.5463.6
120°972.2704.1596.7552.4523.9499.4477.7451.4431.2
135°1123.5786.4643.3572.4537.7509.1481.4426.3376.9
150°1366.9940.2737.5624.0565.5533.7505.8448.6384.5
Run VMG1578.31085.7850.7716.8629.0578.4545.3493.1438.0
Selected Courses
Windward / Leeward1530.01077.7882.4786.4731.2701.1681.7657.9649.4
All purpose1149.4830.7699.2639.3607.1588.2573.9552.9542.0
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward760.00.7894
All purpose624.10.9614
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6843
Downwind "popa"0.8573
70% up, 30% down "Ilhabela"0.7284
30% up, 70% down "Ilhabela-inverso"0.7969
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Predominantly Upwind676.50.8869
Predominantly Downwind623.20.9628
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP647.30.9269 Predom. Rc High518.71.1566 5B SF Bay L/M816.20.7351 TriNum AP Low764.90.7844 Predom. Dn Low929.70.6453 5B SF Bay Med722.90.8300 TriNum AP Med620.80.9665 Predom. Dn L/M698.00.8596 5B SF Bay M/H672.30.8925 TriNum AP High569.61.0534 Predom. Dn Med604.60.9923 5B SF Bay High649.40.9240 TriNum W/L Low1025.40.5851 Predom. Dn M/H545.71.0995 5B AP Low842.90.7118 TriNum W/L Med754.60.7951 Predom. Dn High507.31.1826 5B AP L/M683.80.8774 TriNum W/L Hig677.60.8855 ChiMac Up Low814.80.7363 5B AP Med614.20.9769 Predom. Upwind700.80.8562 ChiMac Up Med751.50.7984 5B AP M/H575.61.0424 Predom. Reaching616.20.9736 ChiMac Up High677.40.8858 5B AP High554.61.0818 Predom. Downwind650.00.9230 ChiMac Off Low806.30.7441 5B W/L Low1142.00.5254 Predom. Up Low906.10.6622 ChiMac Off Med717.80.8359 5B W/L L/M855.00.7018 Predom. Up L/M721.20.8320 ChiMac Off High612.30.9798 5B W/L Med743.80.8066 Predom. Up Med661.50.9071 ChiMac AP Low806.70.7438 5B W/L M/H685.10.8758 Predom. Up M/H632.60.9484 ChiMac AP Med731.90.8198 5B W/L High660.50.9084 Predom. Up High621.60.9652 ChiMac AP High643.30.9327 W/L 60-40 Low1140.30.5262 Predom. Rc Low816.70.7347 BayMac Cove Island922.80.6502 W/L 60-40 L/M864.90.6937 Predom. Rc L/M644.90.9304 BayMac Shore914.50.6561 W/L 60-40 Med763.30.7861 Predom. Rc Med582.61.0298 Harvest Moon549.61.0916 W/L 60-40 M/H712.30.8423 Predom. Rc M/H543.91.1032 5B SF Bay Low963.50.6227 W/L 60-40 High694.10.8644      SA/DSPL Up25.94SA/DSPL Dn41.19
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance676.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating676.10.8875
FinRating, kevyt tuuli1123.20.8903
FinRating, kova tuuli557.70.8965
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8875
Triple Number Coastal/Long Distance Low0.7844
Triple Number Coastal/Long Distance Medium0.9665
Triple Number Coastal/Long Distance High1.0534
Triple Number Windward/Leeward Low0.6122
Triple Number Windward/Leeward Medium0.7951
Triple Number Windward/Leeward High0.8855
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
For information
General Purpose Handicap (GPH)692.0
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Saronikos S All Purpose696.00.8621
Saronikos S Upwind781.20.7680
Saronikos S Downwind589.31.0181
Saronikos N All Purpose734.80.8166
Saronikos N Upwind810.70.7401
Saronikos N Downwind644.90.9304
Saronikos SW All Purpose694.20.8643
Saronikos SW Upwind788.10.7613
Saronikos SW Downwind600.60.9990
Saronikos NE All Purpose755.60.7941
Saronikos NE Upwind759.00.7905
Saronikos NE Downwind721.30.8318
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose647.30.9269
5-Band All Purpose Low913.20.6570
5-Band All Purpose L/M707.60.8479
5-Band All Purpose Med631.90.9495
5-Band All Purpose M/H588.51.0195
5-Band All Purpose High564.51.0629
Single Number Predominant Upwind674.70.8893
Single Number Predominant Reaching595.71.0073
Single Number Predominant Downwind624.60.9606
5-Band 50-50 Windward/Leeward Low1142.00.5254
5-Band 50-50 Windward/Leeward L/M855.00.7018
5-Band 50-50 Windward/Leeward Med743.80.8066
5-Band 50-50 Windward/Leeward M/H685.10.8758
5-Band 50-50 Windward/Leeward High660.50.9084
5-Band 60-40 Windward/Leeward Low1140.30.5262
5-Band 60-40 Windward/Leeward L/M864.90.6937
5-Band 60-40 Windward/Leeward Med763.30.7861
5-Band 60-40 Windward/Leeward M/H712.30.8423
5-Band 60-40 Windward/Leeward High694.10.8644
Triple Number 50-50 Windward/Leeward Low1025.40.5851
Triple Number 50-50 Windward/Leeward Med754.70.7950
Triple Number 50-50 Windward/Leeward High677.60.8855
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward778.80.7704
Triple Number 60-40 Windward/Leeward Low1027.40.5840
Triple Number 60-40 Windward/Leeward Med772.90.7763
Triple Number 60-40 Windward/Leeward High706.30.8495
Triple Number All-Purpose Low828.60.7241
Triple Number All-Purpose Med639.20.9386
Triple Number All-Purpose High581.71.0314
Triple Number Predominant Upwind Low836.30.7174
Triple Number Predominant Upwind Med669.00.8969
Triple Number Predominant Upwind High637.50.9412
Triple Number Predominant Reaching Low750.20.7998
Triple Number Predominant Reaching Med598.31.0028
Triple Number Predominant Reaching High527.51.1374
Triple Number Predominant Downwind Low834.30.7191
Triple Number Predominant Downwind Med613.60.9779
Triple Number Predominant Downwind High522.31.1488
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low764.9
Triple Number Coastal/Long Distance Medium620.8
Triple Number Coastal/Long Distance High569.6
Triple Number Windward/Leeward Low980.1
Triple Number Windward/Leeward Medium754.6
Triple Number Windward/Leeward High677.6
Predominantly Upwind676.5
Predominantly Downwind623.2
Predominantly Reaching602.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7844
Triple Number Coastal/Long Distance Medium0.9665
Triple Number Coastal/Long Distance High1.0534
Triple Number Windward/Leeward Low0.6122
Triple Number Windward/Leeward Medium0.7951
Triple Number Windward/Leeward High0.8855
Coastal/Long Distance0.8875
Predominantly Upwind0.8869
Predominantly Downwind0.9628
For information
General Purpose Handicap (GPH)692.0
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9614
Distanseseilas Trippeltall svak vind0.7844
Distanseseilas Trippeltall mellomvind0.9665
Distanseseilas Trippeltall sterk vind1.0534
Pølsebane Trippeltall svak vind0.6122
Pølsebane Trippeltall mellomvind0.7951
Pølsebane Trippeltall sterk vind0.8855
Motvind Singeltall0.8869
Medvind Singeltall0.9628
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Coastal/Long Distance676.10.8875
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind676.50.8869
Predominantly Downwind623.20.9628
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore651.90.9203
Cape Doctor Coastal545.31.1004
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7844
Triple Number Coastal/Long Distance Medium0.9665
Triple Number Coastal/Long Distance High1.0534
Triple Number Windward/Leeward Low0.6122
Triple Number Windward/Leeward Medium0.7951
Triple Number Windward/Leeward High0.8855
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7844
Triple Number Coastal/Long Distance Medium0.9665
Triple Number Coastal/Long Distance High1.0534
Triple Number Windward/Leeward Low0.6122
Triple Number Windward/Leeward Medium0.7951
Triple Number Windward/Leeward High0.8855
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Predominantly Upwind676.50.8869
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 Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance676.10.8875
Triple Number Coastal/Long Distance Low764.90.7844
Triple Number Coastal/Long Distance Medium620.80.9665
Triple Number Coastal/Long Distance High569.61.0534
Triple Number Windward/Leeward Low980.10.6122
Triple Number Windward/Leeward Medium754.60.7951
Triple Number Windward/Leeward High677.60.8855
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1534.91078.5832.5714.0646.8609.6578.2527.6513.3
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP647.30.9269 Predom. Dn High507.31.1826 5B AP M/H575.61.0424 TriNum AP Low764.90.7844 Predom. Rc Low816.70.7347 5B AP High554.61.0818 TriNum AP Med620.80.9665 Predom. Rc L/M644.90.9304 5B SF Bay Low963.50.6227 TriNum AP High569.61.0534 Predom. Rc Med582.61.0298 5B SF Bay L/M816.20.7351 TriNum W/L Low1025.40.5851 Predom. Rc M/H543.91.1032 5B SF Bay Med722.90.8300 TriNum W/L Med754.60.7951 Predom. Rc High518.71.1566 5B SF Bay M/H672.30.8925 TriNum W/L Hig677.60.8855 5B W/L Low1142.00.5254 5B SF Bay High649.40.9240 Predom. Upwind700.80.8562 5B W/L L/M855.00.7018 ChiMac Up Low814.80.7363 Predom. Reaching616.20.9736 5B W/L Med743.80.8066 ChiMac Up Med751.50.7984 Predom. Downwind650.00.9230 5B W/L M/H685.10.8758 ChiMac Up High677.40.8858 Predom. Up Low906.10.6622 5B W/L High660.50.9084 ChiMac Off Low806.30.7441 Predom. Up L/M721.20.8320 W/L 60-40 Low1140.30.5262 ChiMac Off Med717.80.8359 Predom. Up Med661.50.9071 W/L 60-40 L/M864.90.6937 ChiMac Off High612.30.9798 Predom. Up M/H632.60.9484 W/L 60-40 Med763.30.7861 ChiMac AP Low806.70.7438 Predom. Up High621.60.9652 W/L 60-40 M/H712.30.8423 ChiMac AP Med731.90.8198 Predom. Dn Low929.70.6453 W/L 60-40 High694.10.8644 ChiMac AP High643.30.9327 Predom. Dn L/M698.00.8596 5B AP Low842.90.7118 BayMac Cove Island922.80.6502 Predom. Dn Med604.60.9923 5B AP L/M683.80.8774 BayMac Shore914.50.6561 Predom. Dn M/H545.71.0995 5B AP Med614.20.9769 Harvest Moon549.61.0916      SA/DSPL Up25.94SA/DSPL Dn41.19
ORC Ref  04140004TR8 Issued on 22/06/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
HattiwattiFIN 3464
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassInferno 29MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall8.800Maximum beam2.514Draft1.534Displacement2,678Wetted area15.47IMS L7.586LSM07.506Accomod. length8.171Sink (kg/mm) 11.52
VCGD-0.152VCGM-0.114 RM Rated (kg·m) 45.2Limit of positive stability(°) 126.5 Stability Index 128.5 BLR index 0.0000Default crew weight170 Declared crew weight 211
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.380PBWPIPA0.0053
PSD0.025PHD0.600PHL0.116
PSA14.0°ESL0.702
ST10.023ST20.086ST30.100
ST40.049ST50.100
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P11.000IG10.075ISP10.165MDT10.092MDL10.135MDT20.082MDL20.094TL2.310MW0.138GO0.147
E4.000J3.150BAS1.496FSDSFJ0.180SPL3.170WPLTPS0.000BDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date29/01/2020
SFFP0.482FFM1.089FF1.095LCFcl5.114SG1.0050
SAFP8.072FAM0.772FA0.776LCFsh5.273HBI0.909
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004TR8 Issued on 22/06/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
HattiwattiFIN 3464
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20.150.881.602.663.3526.6408/07/2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20.060.591.172.333.514.7010.04NoNo 23.5408/07/2021G1
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment210.3410.3710.366.275.6653.0508/07/2021
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length8.2 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity33 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04140004TR8 Issued on 22/06/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org