Club Certificate2026
TWISTERITA-13091
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 Angles45.5°42.6°40.1°38.3°37.4°37.2°37.1°37.5°38.9°
Beat VMG2.443.414.084.484.644.704.734.744.62
52°3.805.135.926.296.456.526.556.596.56
60°4.065.366.096.436.606.676.726.786.77
75°4.235.516.206.546.766.917.007.127.18
90°4.105.406.186.566.827.047.237.497.65
110°3.855.336.266.717.037.307.517.838.00
120°3.715.166.146.657.027.387.728.238.61
135°3.244.645.706.396.817.197.608.509.65
150°2.683.924.995.886.476.857.218.039.11
Run VMG2.323.404.335.125.806.306.687.358.12
Gybe Angles138.4°146.0°150.7°154.1°162.6°170.0°177.2°176.8°169.4°
APH ToD:602.6CDL: 7.613APH ToT: 0.9957CertNo:26/1
BOAT
ClassRimar 31 mod.DesignerFinotBuilderRimarAge date09/1997Series date01/1994Offset fileTWISTER.OFFData fileI13091
HULL
Length Overall8.823 mMaximum Beam2.912 mDraft1.862 mDisplacement2,911 kgDLR6.5752IMS DivisionCruiser/RacerDynamic Allowance0.010%Age Allowance0.650%RS Assessment-0.229%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight430 kg(declared)Minimum weight300 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail24.0824.53Headsail Luffed26.5826.58Headsail FlyingSymmetric61.7461.74Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail6.97Storm Jib6.38Heavy Weather Jib17.21
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 51.0 kg·m Stability Index 116.6
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  03190004QC7 Issued on 19/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
TWISTERITA-13091
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 VMG1476.31056.7881.7803.9776.5765.4760.4760.2778.8
52°946.2702.0607.7572.1558.0552.4549.2546.3548.5
60°886.3671.1590.9560.0545.7539.4535.5531.0532.1
75°850.9653.4580.3550.2532.8521.3514.6505.5501.4
90°877.0667.1582.8548.5527.7511.1497.8480.8470.3
110°934.9675.6575.1536.9512.2492.8479.6459.7450.0
120°969.7698.3586.5541.2512.7488.1466.4437.4418.3
135°1110.5775.8632.0563.3528.6500.4473.7423.7373.2
150°1343.2917.3721.0611.9556.6525.6499.2448.5395.3
Run VMG1551.01059.2832.0702.6620.7571.6538.9489.6443.5
Selected Courses
Windward / Leeward1513.61058.0856.9753.3698.6668.5649.7624.9611.2
All purpose1143.5818.8682.0617.8584.7564.8550.6529.4515.6
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward728.70.8234
All purpose602.60.9957
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7235
Downwind "popa"0.8723
70% up, 30% down "Ilhabela"0.7626
30% up, 70% down "Ilhabela-inverso"0.8216
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Predominantly Upwind649.20.9243
Predominantly Downwind608.50.9861
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP626.30.9580 Predom. Rc High500.51.1987 5B SF Bay L/M789.10.7604 TriNum AP Low750.40.7996 Predom. Dn Low915.70.6553 5B SF Bay Med690.80.8686 TriNum AP Med598.91.0018 Predom. Dn L/M682.60.8790 5B SF Bay M/H639.60.9381 TriNum AP High546.21.0984 Predom. Dn Med589.61.0176 5B SF Bay High615.30.9751 TriNum W/L Low1002.70.5984 Predom. Dn M/H531.51.1289 5B AP Low832.20.7210 TriNum W/L Med722.50.8305 Predom. Dn High494.41.2135 5B AP L/M665.10.9021 TriNum W/L Hig645.10.9301 ChiMac Up Low795.70.7541 5B AP Med592.11.0134 Predom. Upwind674.20.8900 ChiMac Up Med727.50.8248 5B AP M/H552.31.0863 Predom. Reaching601.00.9984 ChiMac Up High648.40.9253 5B AP High530.71.1305 Predom. Downwind635.50.9442 ChiMac Off Low791.40.7581 5B W/L Low1121.60.5349 Predom. Up Low894.50.6707 ChiMac Off Med702.90.8536 5B W/L L/M826.60.7259 Predom. Up L/M698.10.8595 ChiMac Off High597.71.0039 5B W/L Med711.70.8430 Predom. Up Med632.20.9490 ChiMac AP Low790.10.7594 5B W/L M/H652.80.9192 Predom. Up M/H601.60.9973 ChiMac AP Med712.80.8418 5B W/L High626.80.9572 Predom. Up High588.51.0196 ChiMac AP High621.70.9652 W/L 60-40 Low1120.90.5353 Predom. Rc Low808.60.7420 BayMac Cove Island904.30.6635 W/L 60-40 L/M834.20.7193 Predom. Rc L/M630.90.9510 BayMac Shore896.60.6692 W/L 60-40 Med726.70.8257 Predom. Rc Med566.21.0598 Harvest Moon536.11.1191 W/L 60-40 M/H674.70.8893 Predom. Rc M/H526.21.1403 5B SF Bay Low945.90.6343 W/L 60-40 High654.10.9172      SA/DSPL Up24.76SA/DSPL Dn41.94
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
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 Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating651.90.9204
FinRating, kevyt tuuli1105.70.9044
FinRating, kova tuuli534.30.9359
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9204
Triple Number Coastal/Long Distance Low0.7996
Triple Number Coastal/Long Distance Medium1.0019
Triple Number Coastal/Long Distance High1.0984
Triple Number Windward/Leeward Low0.6267
Triple Number Windward/Leeward Medium0.8305
Triple Number Windward/Leeward High0.9301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
For information
General Purpose Handicap (GPH)671.0
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Saronikos S All Purpose674.80.8891
Saronikos S Upwind752.80.7970
Saronikos S Downwind582.11.0308
Saronikos N All Purpose711.30.8435
Saronikos N Upwind785.10.7642
Saronikos N Downwind634.80.9451
Saronikos SW All Purpose677.90.8851
Saronikos SW Upwind767.90.7814
Saronikos SW Downwind591.81.0139
Saronikos NE All Purpose736.40.8148
Saronikos NE Upwind739.80.8111
Saronikos NE Downwind710.70.8442
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose626.30.9580
5-Band All Purpose Low900.90.6660
5-Band All Purpose L/M688.70.8712
5-Band All Purpose Med610.10.9835
5-Band All Purpose M/H565.91.0602
5-Band All Purpose High541.31.1085
Single Number Predominant Upwind647.50.9267
Single Number Predominant Reaching579.71.0349
Single Number Predominant Downwind609.60.9842
5-Band 50-50 Windward/Leeward Low1121.60.5349
5-Band 50-50 Windward/Leeward L/M826.60.7259
5-Band 50-50 Windward/Leeward Med711.70.8430
5-Band 50-50 Windward/Leeward M/H652.80.9192
5-Band 50-50 Windward/Leeward High626.80.9572
5-Band 60-40 Windward/Leeward Low1120.90.5353
5-Band 60-40 Windward/Leeward L/M834.20.7193
5-Band 60-40 Windward/Leeward Med726.70.8257
5-Band 60-40 Windward/Leeward M/H674.70.8893
5-Band 60-40 Windward/Leeward High654.10.9172
Triple Number 50-50 Windward/Leeward Low1002.70.5984
Triple Number 50-50 Windward/Leeward Med722.60.8304
Triple Number 50-50 Windward/Leeward High645.10.9301
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward743.30.8072
Triple Number 60-40 Windward/Leeward Low1004.60.5973
Triple Number 60-40 Windward/Leeward Med736.40.8148
Triple Number 60-40 Windward/Leeward High668.40.8977
Triple Number All-Purpose Low814.00.7371
Triple Number All-Purpose Med617.50.9717
Triple Number All-Purpose High559.11.0732
Triple Number Predominant Upwind Low821.00.7308
Triple Number Predominant Upwind Med640.20.9372
Triple Number Predominant Upwind High604.40.9927
Triple Number Predominant Reaching Low739.40.8115
Triple Number Predominant Reaching Med580.91.0329
Triple Number Predominant Reaching High510.71.1748
Triple Number Predominant Downwind Low819.80.7319
Triple Number Predominant Downwind Med599.31.0011
Triple Number Predominant Downwind High510.81.1745
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low750.4
Triple Number Coastal/Long Distance Medium598.9
Triple Number Coastal/Long Distance High546.2
Triple Number Windward/Leeward Low957.4
Triple Number Windward/Leeward Medium722.5
Triple Number Windward/Leeward High645.1
Predominantly Upwind649.2
Predominantly Downwind608.5
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 Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7996
Triple Number Coastal/Long Distance Medium1.0019
Triple Number Coastal/Long Distance High1.0984
Triple Number Windward/Leeward Low0.6267
Triple Number Windward/Leeward Medium0.8305
Triple Number Windward/Leeward High0.9301
Coastal/Long Distance0.9204
Predominantly Upwind0.9243
Predominantly Downwind0.9861
For information
General Purpose Handicap (GPH)671.0
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9957
Distanseseilas Trippeltall svak vind0.7996
Distanseseilas Trippeltall mellomvind1.0019
Distanseseilas Trippeltall sterk vind1.0984
Pølsebane Trippeltall svak vind0.6267
Pølsebane Trippeltall mellomvind0.8305
Pølsebane Trippeltall sterk vind0.9301
Motvind Singeltall0.9243
Medvind Singeltall0.9861
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Coastal/Long Distance651.90.9204
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind649.20.9243
Predominantly Downwind608.50.9861
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore615.30.9751
Cape Doctor Coastal519.71.1544
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7996
Triple Number Coastal/Long Distance Medium1.0019
Triple Number Coastal/Long Distance High1.0984
Triple Number Windward/Leeward Low0.6267
Triple Number Windward/Leeward Medium0.8305
Triple Number Windward/Leeward High0.9301
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7996
Triple Number Coastal/Long Distance Medium1.0019
Triple Number Coastal/Long Distance High1.0984
Triple Number Windward/Leeward Low0.6267
Triple Number Windward/Leeward Medium0.8305
Triple Number Windward/Leeward High0.9301
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Predominantly Upwind649.20.9243
Predominantly Downwind608.50.9861
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.90.9204
Triple Number Coastal/Long Distance Low750.40.7996
Triple Number Coastal/Long Distance Medium598.91.0019
Triple Number Coastal/Long Distance High546.21.0984
Triple Number Windward/Leeward Low957.40.6267
Triple Number Windward/Leeward Medium722.50.8305
Triple Number Windward/Leeward High645.10.9301
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1517.41058.1809.6687.0621.1585.3555.9508.1493.4
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP626.30.9580 Predom. Dn High494.41.2135 5B AP M/H552.31.0863 TriNum AP Low750.40.7996 Predom. Rc Low808.60.7420 5B AP High530.71.1305 TriNum AP Med598.91.0018 Predom. Rc L/M630.90.9510 5B SF Bay Low945.90.6343 TriNum AP High546.21.0984 Predom. Rc Med566.21.0598 5B SF Bay L/M789.10.7604 TriNum W/L Low1002.70.5984 Predom. Rc M/H526.21.1403 5B SF Bay Med690.80.8686 TriNum W/L Med722.50.8305 Predom. Rc High500.51.1987 5B SF Bay M/H639.60.9381 TriNum W/L Hig645.10.9301 5B W/L Low1121.60.5349 5B SF Bay High615.30.9751 Predom. Upwind674.20.8900 5B W/L L/M826.60.7259 ChiMac Up Low795.70.7541 Predom. Reaching601.00.9984 5B W/L Med711.70.8430 ChiMac Up Med727.50.8248 Predom. Downwind635.50.9442 5B W/L M/H652.80.9192 ChiMac Up High648.40.9253 Predom. Up Low894.50.6707 5B W/L High626.80.9572 ChiMac Off Low791.40.7581 Predom. Up L/M698.10.8595 W/L 60-40 Low1120.90.5353 ChiMac Off Med702.90.8536 Predom. Up Med632.20.9490 W/L 60-40 L/M834.20.7193 ChiMac Off High597.71.0039 Predom. Up M/H601.60.9973 W/L 60-40 Med726.70.8257 ChiMac AP Low790.10.7594 Predom. Up High588.51.0196 W/L 60-40 M/H674.70.8893 ChiMac AP Med712.80.8418 Predom. Dn Low915.70.6553 W/L 60-40 High654.10.9172 ChiMac AP High621.70.9652 Predom. Dn L/M682.60.8790 5B AP Low832.20.7210 BayMac Cove Island904.30.6635 Predom. Dn Med589.61.0176 5B AP L/M665.10.9021 BayMac Shore896.60.6692 Predom. Dn M/H531.51.1289 5B AP Med592.11.0134 Harvest Moon536.11.1191      SA/DSPL Up24.76SA/DSPL Dn41.94
ORC Ref  03190004QC7 Issued on 19/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
TWISTERITA-13091
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassRimar 31 mod.Measurement27/06/2000HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall8.823Maximum beam2.912Draft1.862Displacement2,911Wetted area16.34IMS L7.828LSM07.621Accomod. length8.823Sink (kg/mm) 12.00
VCGD-0.094VCGM-0.001 RM Rated (kg·m) 51.0Limit of positive stability(°) 118.9 Stability Index 116.6 BLR index 0.0000Default crew weight467 Declared crew weight 430
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBW0.105PIPA0.0023
EDL1.000ST10.065ST20.210
ST30.210ST40.090ST50.104
RIG
BackstayAdjustableForestayAdjustable (turnbuckle)Inner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P11.050IG11.290ISP11.390MDT10.095MDL10.120MDT20.095MDL20.105TL0.800MW0.120GO0.120
E3.600J3.440BAS1.400FSD0.026SFJSPL3.620WPLTPSBD0.100MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.094Flotation Date05/11/2024
SFFP0.350FFM1.205FF1.205LCFcl4.848SG1.0250
SAFP8.058FAM0.905FA0.905LCFsh5.070HBI1.034
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03190004QC7 Issued on 19/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
TWISTERITA-13091
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.250.881.432.313.0324.0818/05/2026
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.050.601.182.313.524.8111.25NoNo 26.5818/05/2026
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC11.3511.3511.356.566.4061.74* Copied from legacy *
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverYes (manual)BoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length8.8 mTable area0.33 m²Headroom1.59 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity42 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity26 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  03190004QC7 Issued on 19/05/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org