Double HandedClub Certificate2026
TiimiFIN 4949
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 Angles46.3°42.7°41.0°40.7°40.3°40.2°40.1°40.7°42.6°
Beat VMG2.443.373.944.244.374.424.444.424.26
52°3.845.075.816.166.296.366.396.416.36
60°4.115.316.016.336.486.546.586.636.61
75°4.325.486.156.486.666.776.846.946.98
90°4.225.426.166.576.786.927.067.287.44
110°3.975.386.276.707.007.297.557.888.03
120°3.835.246.166.636.967.297.648.228.50
135°3.344.725.746.386.767.097.448.198.87
150°2.764.005.025.846.386.747.047.748.45
Run VMG2.393.464.355.065.726.246.617.217.87
Gybe Angles139.7°144.4°148.7°150.5°163.7°171.8°178.1°178.6°177.7°
APH ToD:616.6CDL: 7.293APH ToT: 0.9730CertNo:
BOAT
ClassInferno 31DesignerHakan SodergrenBuilderFinngulf MarinAge date01/1986Series date01/1986Offset fileINFERNO-31.offData fileFIN4949
HULL
Length Overall9.447 mMaximum Beam3.018 mDraft1.637 mDisplacement4,351 kgDLR8.4608IMS DivisionCruiser/RacerDynamic Allowance0.190%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.410m
CREW
Maximum weight170 kg(declared)Minimum weight120 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail31.1631.74Headsail Luffed31.5731.57Headsail FlyingSymmetric60.1860.18Asymmetric63.5657.29 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail9.19Storm Jib6.94Heavy Weather Jib18.74
SAIL LIMITS
Headsails5Spinnakers4
✱ Asymmetric SHALL NOT be tacked on the pole
STABILITY
Righting Moment 77.7 kg·m Stability Index 127.7
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  04140004Q8A Issued on 18/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
TiimiFIN 4949
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 VMG1474.91069.5913.8849.2824.4814.6810.4814.8845.5
52°938.4709.9619.6584.7571.9566.3563.2561.2566.4
60°875.1678.0598.9568.8556.0550.5546.9543.2544.9
75°834.0656.7585.0555.7540.6531.6526.2518.4515.5
90°852.4664.6584.1548.0531.1520.5509.9494.8483.9
110°907.2669.0574.6537.6514.4494.1476.9457.1448.1
120°940.5687.7584.6542.7517.0494.1471.5438.0423.5
135°1077.9762.8627.7564.2532.3507.9483.8439.4405.9
150°1303.1899.8717.2616.1564.1534.4511.1465.2426.3
Run VMG1504.71039.0828.2711.2629.0577.3544.3499.6457.4
Selected Courses
Windward / Leeward1489.81054.3871.0780.2726.7695.9677.3657.2651.5
All purpose1122.3816.3689.6631.1600.1581.6568.1549.6542.5
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward753.60.7962
All purpose616.60.9730
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6889
Downwind "popa"0.8698
70% up, 30% down "Ilhabela"0.7348
30% up, 70% down "Ilhabela-inverso"0.8063
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Predominantly Upwind668.70.8972
Predominantly Downwind616.20.9736
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP640.50.9368 Predom. Rc High518.61.1569 5B SF Bay L/M806.90.7436 TriNum AP Low753.00.7969 Predom. Dn Low903.70.6639 5B SF Bay Med716.90.8370 TriNum AP Med613.30.9783 Predom. Dn L/M686.00.8747 5B SF Bay M/H668.50.8975 TriNum AP High564.51.0629 Predom. Dn Med598.91.0018 5B SF Bay High649.10.9244 TriNum W/L Low1006.30.5963 Predom. Dn M/H544.31.1024 5B AP Low825.40.7269 TriNum W/L Med748.90.8012 Predom. Dn High511.81.1724 5B AP L/M674.40.8896 TriNum W/L Hig674.50.8896 ChiMac Up Low805.70.7447 5B AP Med606.90.9886 Predom. Upwind692.70.8662 ChiMac Up Med742.90.8076 5B AP M/H569.91.0528 Predom. Reaching608.80.9856 ChiMac Up High670.20.8952 5B AP High551.51.0879 Predom. Downwind642.10.9345 ChiMac Off Low788.20.7613 5B W/L Low1117.30.5370 Predom. Up Low896.10.6696 ChiMac Off Med705.40.8506 5B W/L L/M844.60.7104 Predom. Up L/M713.50.8410 ChiMac Off High607.10.9883 5B W/L Med738.30.8126 Predom. Up Med653.30.9184 ChiMac AP Low793.30.7564 5B W/L M/H681.20.8808 Predom. Up M/H625.90.9587 ChiMac AP Med721.50.8316 5B W/L High659.70.9095 Predom. Up High616.30.9736 ChiMac AP High637.10.9418 W/L 60-40 Low1120.20.5356 Predom. Rc Low801.70.7484 BayMac Cove Island905.40.6627 W/L 60-40 L/M855.90.7010 Predom. Rc L/M635.40.9444 BayMac Shore897.90.6682 W/L 60-40 Med757.30.7923 Predom. Rc Med575.51.0425 Harvest Moon544.51.1020 W/L 60-40 M/H707.60.8480 Predom. Rc M/H540.31.1104 5B SF Bay Low947.90.6330 W/L 60-40 High691.60.8675      SA/DSPL Up23.43SA/DSPL Dn35.37
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance668.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating668.80.8972
FinRating, kevyt tuuli1097.90.9109
FinRating, kova tuuli555.20.9006
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8972
Triple Number Coastal/Long Distance Low0.7969
Triple Number Coastal/Long Distance Medium0.9783
Triple Number Coastal/Long Distance High1.0629
Triple Number Windward/Leeward Low0.6233
Triple Number Windward/Leeward Medium0.8012
Triple Number Windward/Leeward High0.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
For information
General Purpose Handicap (GPH)683.0
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Saronikos S All Purpose692.00.8670
Saronikos S Upwind775.00.7742
Saronikos S Downwind585.01.0257
Saronikos N All Purpose726.50.8259
Saronikos N Upwind804.40.7459
Saronikos N Downwind633.20.9476
Saronikos SW All Purpose690.40.8690
Saronikos SW Upwind782.80.7664
Saronikos SW Downwind593.41.0111
Saronikos NE All Purpose743.10.8074
Saronikos NE Upwind751.80.7981
Saronikos NE Downwind702.50.8541
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose640.50.9368
5-Band All Purpose Low895.70.6699
5-Band All Purpose L/M697.90.8598
5-Band All Purpose Med625.00.9600
5-Band All Purpose M/H584.41.0267
5-Band All Purpose High563.71.0644
Single Number Predominant Upwind667.10.8994
Single Number Predominant Reaching588.41.0198
Single Number Predominant Downwind617.30.9719
5-Band 50-50 Windward/Leeward Low1117.30.5370
5-Band 50-50 Windward/Leeward L/M844.60.7104
5-Band 50-50 Windward/Leeward Med738.30.8126
5-Band 50-50 Windward/Leeward M/H681.20.8808
5-Band 50-50 Windward/Leeward High659.70.9095
5-Band 60-40 Windward/Leeward Low1120.20.5356
5-Band 60-40 Windward/Leeward L/M855.90.7010
5-Band 60-40 Windward/Leeward Med757.30.7923
5-Band 60-40 Windward/Leeward M/H707.60.8480
5-Band 60-40 Windward/Leeward High691.60.8675
Triple Number 50-50 Windward/Leeward Low1006.30.5963
Triple Number 50-50 Windward/Leeward Med748.90.8012
Triple Number 50-50 Windward/Leeward High674.40.8896
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward772.20.7770
Triple Number 60-40 Windward/Leeward Low1011.70.5931
Triple Number 60-40 Windward/Leeward Med766.70.7826
Triple Number 60-40 Windward/Leeward High702.20.8545
Triple Number All-Purpose Low814.40.7368
Triple Number All-Purpose Med632.00.9494
Triple Number All-Purpose High578.41.0373
Triple Number Predominant Upwind Low826.80.7257
Triple Number Predominant Upwind Med660.70.9081
Triple Number Predominant Upwind High630.40.9517
Triple Number Predominant Reaching Low737.70.8133
Triple Number Predominant Reaching Med590.71.0158
Triple Number Predominant Reaching High524.81.1432
Triple Number Predominant Downwind Low814.10.7370
Triple Number Predominant Downwind Med607.40.9879
Triple Number Predominant Downwind High522.81.1476
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low752.9
Triple Number Coastal/Long Distance Medium613.3
Triple Number Coastal/Long Distance High564.5
Triple Number Windward/Leeward Low962.6
Triple Number Windward/Leeward Medium748.9
Triple Number Windward/Leeward High674.5
Predominantly Upwind668.7
Predominantly Downwind616.2
Predominantly Reaching595.4
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7969
Triple Number Coastal/Long Distance Medium0.9783
Triple Number Coastal/Long Distance High1.0629
Triple Number Windward/Leeward Low0.6233
Triple Number Windward/Leeward Medium0.8012
Triple Number Windward/Leeward High0.8896
Coastal/Long Distance0.8972
Predominantly Upwind0.8972
Predominantly Downwind0.9736
For information
General Purpose Handicap (GPH)683.0
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9730
Distanseseilas Trippeltall svak vind0.7969
Distanseseilas Trippeltall mellomvind0.9783
Distanseseilas Trippeltall sterk vind1.0629
Pølsebane Trippeltall svak vind0.6233
Pølsebane Trippeltall mellomvind0.8012
Pølsebane Trippeltall sterk vind0.8896
Motvind Singeltall0.8972
Medvind Singeltall0.9736
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Coastal/Long Distance668.80.8972
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind668.70.8972
Predominantly Downwind616.20.9736
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore653.20.9186
Cape Doctor Coastal544.61.1017
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7969
Triple Number Coastal/Long Distance Medium0.9783
Triple Number Coastal/Long Distance High1.0629
Triple Number Windward/Leeward Low0.6233
Triple Number Windward/Leeward Medium0.8012
Triple Number Windward/Leeward High0.8896
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7969
Triple Number Coastal/Long Distance Medium0.9783
Triple Number Coastal/Long Distance High1.0629
Triple Number Windward/Leeward Low0.6233
Triple Number Windward/Leeward Medium0.8012
Triple Number Windward/Leeward High0.8896
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Predominantly Upwind668.70.8972
Predominantly Downwind616.20.9736
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance668.80.8972
Triple Number Coastal/Long Distance Low752.90.7969
Triple Number Coastal/Long Distance Medium613.30.9783
Triple Number Coastal/Long Distance High564.51.0629
Triple Number Windward/Leeward Low962.60.6233
Triple Number Windward/Leeward Medium748.90.8012
Triple Number Windward/Leeward High674.50.8896
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1491.31052.7821.0706.6640.3603.8573.3522.2511.8
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP640.50.9368 Predom. Dn High511.81.1724 5B AP M/H569.91.0528 TriNum AP Low753.00.7969 Predom. Rc Low801.70.7484 5B AP High551.51.0879 TriNum AP Med613.30.9783 Predom. Rc L/M635.40.9444 5B SF Bay Low947.90.6330 TriNum AP High564.51.0629 Predom. Rc Med575.51.0425 5B SF Bay L/M806.90.7436 TriNum W/L Low1006.30.5963 Predom. Rc M/H540.31.1104 5B SF Bay Med716.90.8370 TriNum W/L Med748.90.8012 Predom. Rc High518.61.1569 5B SF Bay M/H668.50.8975 TriNum W/L Hig674.50.8896 5B W/L Low1117.30.5370 5B SF Bay High649.10.9244 Predom. Upwind692.70.8662 5B W/L L/M844.60.7104 ChiMac Up Low805.70.7447 Predom. Reaching608.80.9856 5B W/L Med738.30.8126 ChiMac Up Med742.90.8076 Predom. Downwind642.10.9345 5B W/L M/H681.20.8808 ChiMac Up High670.20.8952 Predom. Up Low896.10.6696 5B W/L High659.70.9095 ChiMac Off Low788.20.7613 Predom. Up L/M713.50.8410 W/L 60-40 Low1120.20.5356 ChiMac Off Med705.40.8506 Predom. Up Med653.30.9184 W/L 60-40 L/M855.90.7010 ChiMac Off High607.10.9883 Predom. Up M/H625.90.9587 W/L 60-40 Med757.30.7923 ChiMac AP Low793.30.7564 Predom. Up High616.30.9736 W/L 60-40 M/H707.60.8480 ChiMac AP Med721.50.8316 Predom. Dn Low903.70.6639 W/L 60-40 High691.60.8675 ChiMac AP High637.10.9418 Predom. Dn L/M686.00.8747 5B AP Low825.40.7269 BayMac Cove Island905.40.6627 Predom. Dn Med598.91.0018 5B AP L/M674.40.8896 BayMac Shore897.90.6682 Predom. Dn M/H544.31.1024 5B AP Med606.90.9886 Harvest Moon544.51.1020      SA/DSPL Up23.43SA/DSPL Dn35.37
ORC Ref  04140004Q8A Issued on 18/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
TiimiFIN 4949
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassInferno 31Measurement22/07/2022HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.447Maximum beam3.018Draft1.637Displacement4,351Wetted area19.45IMS L8.023LSM08.011Accomod. length9.447Sink (kg/mm) 14.42
VCGD-0.073VCGM-0.053 RM Rated (kg·m) 77.7Limit of positive stability(°) 125.1 Stability Index 127.7 BLR index 0.0000Default crew weight170 Declared crew weight 170
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.410PBW0.100PIPA0.0049
PSD0.025PHD0.069PHL0.130
PSA22.0°ESL0.800
ST10.025ST20.079ST30.080
ST40.050ST50.140
RIG
BackstayFixedForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysYesCheckstaysNoSpreaders2Rotating mastNo
P12.500IG11.780ISP11.830MDT10.110MDL10.160MDT20.090MDL20.115TL1.850MW0.160GO0.160
E4.200J3.575BAS1.480FSDSFJ0.185SPL3.590WPLTPS4.575BD0.155MWT105.00MCG4.370
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date22/07/2022
SFFP0.593FFM1.198FF1.205LCFcl5.476SG1.0050
SAFP8.565FAM0.948FA0.953LCFsh5.683HBI1.046
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04140004Q8A Issued on 18/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedClub Certificate2026
TiimiFIN 4949
Avomeripurjehtijat ry
c/o Helsingfors Segelklubb ry
Vattuniemen puistotie 1
00210 HELSINKI
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.120.881.602.703.5031.16
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment22.675.3811.60NoNo 31.57
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment111.6011.6011.606.236.2160.18
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment112.6712.675.826.8285%63.56
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9.4 mTable area0.44 m²Headroom1.66 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity68 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity38 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04140004Q8A Issued on 18/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org