Club Certificate2026
MaelstromUSA 107
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 Angles44.8°42.0°38.9°37.3°36.8°36.4°36.2°36.7°38.4°
Beat VMG2.964.154.865.145.305.405.475.475.34
52°4.616.246.977.237.407.547.647.737.66
60°4.956.527.197.487.707.867.998.138.09
75°5.216.727.407.878.158.398.598.878.96
90°5.096.657.388.018.538.919.259.7610.11
110°5.026.797.598.138.639.139.7711.0011.80
120°4.846.717.698.429.049.6610.2711.4412.54
135°4.346.167.348.289.3510.4211.2812.9414.84
150°3.625.216.427.298.199.2510.5313.8617.10
Run VMG3.134.515.566.337.108.019.1212.0015.17
Gybe Angles140.6°143.5°144.5°152.8°150.3°145.4°145.2°148.7°152.8°
APH ToD:492.2CDL: 9.449APH ToT: 1.2191CertNo:US107-30
BOAT
ClassMelges 30 ModDesignerReichel/ PughBuilderMelgesAge date03/1996Series date01/1996Offset fileMELGES-30.offData fileUS107-30
HULL
Length Overall9.685Maximum Beam2.936Draft2.153Displacement1,902DLR2.9101IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.650%RS Assessment-0.178%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight560(declared)Minimum weight430 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail40.5341.75Headsail Luffed21.3421.34Headsail FlyingSymmetricAsymmetric121.07121.07 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS Maximum (m²)
Trysail11.08Storm Jib7.40Heavy Weather Jib19.98
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 54.6 Stability Index 111.1
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  04560004EV3 Issued on 25/02/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MaelstromUSA 107
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 VMG1216.2866.9740.8700.2679.2666.4658.2658.4674.5
52°781.2576.9516.4497.8486.2477.7471.0465.5469.7
60°727.8551.8500.6481.0467.8458.1450.7442.7444.9
75°690.6535.4486.5457.7441.5428.9419.1406.1401.6
90°707.3541.3487.6449.2421.8404.0389.3368.9356.0
110°717.8529.9474.5442.8416.9394.5368.4327.3305.1
120°743.3536.5468.1427.7398.4372.7350.4314.7287.1
135°828.6584.9490.8435.0385.1345.5319.1278.2242.5
150°995.0690.9560.4494.0439.5389.2341.9259.8210.5
Run VMG1148.9797.7647.1568.7507.3449.5394.8300.0237.3
Selected Courses
Windward / Leeward1182.5832.3694.0634.4593.3557.9526.5479.2455.9
All purpose899.0648.6557.4514.7484.1459.0437.4405.8389.6
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward604.10.9933
All purpose492.21.2191
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.8451
Downwind "popa"1.1459
70% up, 30% down "Ilhabela"0.9173
30% up, 70% down "Ilhabela-inverso"1.0354
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Predominantly Upwind543.51.1039
Predominantly Downwind480.01.2501
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP503.81.1910 Predom. Rc High380.21.5779 5B SF Bay L/M648.40.9254 TriNum AP Low603.00.9950 Predom. Dn Low709.50.8456 5B SF Bay Med576.01.0417 TriNum AP Med494.21.2142 Predom. Dn L/M544.61.1017 5B SF Bay M/H516.81.1609 TriNum AP High431.01.3922 Predom. Dn Med468.21.2815 5B SF Bay High478.71.2534 TriNum W/L Low799.10.7508 Predom. Dn M/H400.31.4989 5B AP Low658.90.9107 TriNum W/L Med606.60.9892 Predom. Dn High352.51.7022 5B AP L/M544.91.1011 TriNum W/L Hig516.61.1614 ChiMac Up Low655.20.9157 5B AP Med487.21.2316 Predom. Upwind560.41.0707 ChiMac Up Med603.70.9939 5B AP M/H439.71.3646 Predom. Reaching478.11.2549 ChiMac Up High540.01.1111 5B AP High408.51.4688 Predom. Downwind495.21.2116 ChiMac Off Low621.70.9650 5B W/L Low885.30.6777 Predom. Up Low725.30.8272 ChiMac Off Med552.71.0856 5B W/L L/M678.50.8843 Predom. Up L/M582.51.0300 ChiMac Off High464.41.2920 5B W/L Med597.01.0050 Predom. Up Med532.41.1269 ChiMac AP Low636.20.9431 5B W/L M/H529.51.1332 Predom. Up M/H498.21.2043 ChiMac AP Med576.51.0407 5B W/L High483.31.2414 Predom. Up High481.11.2472 ChiMac AP High501.21.1972 W/L 60-40 Low892.80.6721 Predom. Rc Low642.60.9337 BayMac Cove Island722.20.8308 W/L 60-40 L/M690.00.8696 Predom. Rc L/M512.01.1718 BayMac Shore717.50.8362 W/L 60-40 Med614.40.9766 Predom. Rc Med454.61.3200 Harvest Moon416.61.4401 W/L 60-40 M/H555.91.0794 Predom. Rc M/H408.61.4685 5B SF Bay Low752.60.7973 W/L 60-40 High518.91.1563      SA/DSPL Up40.22SA/DSPL Dn105.05
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance533.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating533.21.1253
FinRating, kevyt tuuli871.51.1475
FinRating, kova tuuli409.31.2216
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.1253
Triple Number Coastal/Long Distance Low0.9950
Triple Number Coastal/Long Distance Medium1.2143
Triple Number Coastal/Long Distance High1.3922
Triple Number Windward/Leeward Low0.7862
Triple Number Windward/Leeward Medium0.9892
Triple Number Windward/Leeward High1.1614
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
For information
General Purpose Handicap (GPH)545.8
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Saronikos S All Purpose543.61.1038
Saronikos S Upwind636.10.9433
Saronikos S Downwind428.71.3995
Saronikos N All Purpose543.61.1038
Saronikos N Upwind656.90.9133
Saronikos N Downwind492.31.2189
Saronikos SW All Purpose542.11.1068
Saronikos SW Upwind640.50.9367
Saronikos SW Downwind446.51.3437
Saronikos NE All Purpose596.51.0059
Saronikos NE Upwind615.00.9756
Saronikos NE Downwind551.21.0885
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose503.81.1910
5-Band All Purpose Low715.00.8391
5-Band All Purpose L/M562.61.0665
5-Band All Purpose Med499.71.2008
5-Band All Purpose M/H448.91.3365
5-Band All Purpose High416.61.4401
Single Number Predominant Upwind541.71.1077
Single Number Predominant Reaching465.21.2898
Single Number Predominant Downwind481.31.2466
5-Band 50-50 Windward/Leeward Low885.30.6777
5-Band 50-50 Windward/Leeward L/M678.50.8843
5-Band 50-50 Windward/Leeward Med597.01.0050
5-Band 50-50 Windward/Leeward M/H529.51.1332
5-Band 50-50 Windward/Leeward High483.31.2414
5-Band 60-40 Windward/Leeward Low892.80.6721
5-Band 60-40 Windward/Leeward L/M690.00.8696
5-Band 60-40 Windward/Leeward Med614.40.9766
5-Band 60-40 Windward/Leeward M/H555.91.0794
5-Band 60-40 Windward/Leeward High518.91.1563
Triple Number 50-50 Windward/Leeward Low799.10.7508
Triple Number 50-50 Windward/Leeward Med606.60.9891
Triple Number 50-50 Windward/Leeward High516.61.1614
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward621.90.9648
Triple Number 60-40 Windward/Leeward Low807.50.7430
Triple Number 60-40 Windward/Leeward Med622.90.9632
Triple Number 60-40 Windward/Leeward High545.31.1002
Triple Number All-Purpose Low651.60.9209
Triple Number All-Purpose Med507.31.1828
Triple Number All-Purpose High439.91.3640
Triple Number Predominant Upwind Low669.60.8961
Triple Number Predominant Upwind Med540.11.1110
Triple Number Predominant Upwind High503.41.1918
Triple Number Predominant Reaching Low592.71.0123
Triple Number Predominant Reaching Med471.41.2728
Triple Number Predominant Reaching High392.91.5272
Triple Number Predominant Downwind Low641.90.9347
Triple Number Predominant Downwind Med477.11.2576
Triple Number Predominant Downwind High373.41.6067
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low603.0
Triple Number Coastal/Long Distance Medium494.1
Triple Number Coastal/Long Distance High431.0
Triple Number Windward/Leeward Low763.2
Triple Number Windward/Leeward Medium606.6
Triple Number Windward/Leeward High516.6
Predominantly Upwind543.5
Predominantly Downwind480.0
Predominantly Reaching466.3
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9950
Triple Number Coastal/Long Distance Medium1.2143
Triple Number Coastal/Long Distance High1.3922
Triple Number Windward/Leeward Low0.7862
Triple Number Windward/Leeward Medium0.9892
Triple Number Windward/Leeward High1.1614
Coastal/Long Distance1.1253
Predominantly Upwind1.1039
Predominantly Downwind1.2501
For information
General Purpose Handicap (GPH)545.8
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.2191
Distanseseilas Trippeltall svak vind0.9950
Distanseseilas Trippeltall mellomvind1.2143
Distanseseilas Trippeltall sterk vind1.3922
Pølsebane Trippeltall svak vind0.7862
Pølsebane Trippeltall mellomvind0.9892
Pølsebane Trippeltall sterk vind1.1614
Motvind Singeltall1.1039
Medvind Singeltall1.2501
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Coastal/Long Distance533.21.1253
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind543.51.1039
Predominantly Downwind480.01.2501
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore462.91.2963
Cape Doctor Coastal394.51.5210
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9950
Triple Number Coastal/Long Distance Medium1.2143
Triple Number Coastal/Long Distance High1.3922
Triple Number Windward/Leeward Low0.7862
Triple Number Windward/Leeward Medium0.9892
Triple Number Windward/Leeward High1.1614
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9950
Triple Number Coastal/Long Distance Medium1.2143
Triple Number Coastal/Long Distance High1.3922
Triple Number Windward/Leeward Low0.7862
Triple Number Windward/Leeward Medium0.9892
Triple Number Windward/Leeward High1.1614
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Predominantly Upwind543.51.1039
Predominantly Downwind480.01.2501
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance533.21.1253
Triple Number Coastal/Long Distance Low603.00.9950
Triple Number Coastal/Long Distance Medium494.11.2143
Triple Number Coastal/Long Distance High431.01.3922
Triple Number Windward/Leeward Low763.20.7862
Triple Number Windward/Leeward Medium606.60.9892
Triple Number Windward/Leeward High516.61.1614
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1179.2828.9656.0575.4517.9477.1441.0384.9366.4
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP503.81.1910 Predom. Dn High352.51.7022 5B AP M/H439.71.3646 TriNum AP Low603.00.9950 Predom. Rc Low642.60.9337 5B AP High408.51.4688 TriNum AP Med494.21.2142 Predom. Rc L/M512.01.1718 5B SF Bay Low752.60.7973 TriNum AP High431.01.3922 Predom. Rc Med454.61.3200 5B SF Bay L/M648.40.9254 TriNum W/L Low799.10.7508 Predom. Rc M/H408.61.4685 5B SF Bay Med576.01.0417 TriNum W/L Med606.60.9892 Predom. Rc High380.21.5779 5B SF Bay M/H516.81.1609 TriNum W/L Hig516.61.1614 5B W/L Low885.30.6777 5B SF Bay High478.71.2534 Predom. Upwind560.41.0707 5B W/L L/M678.50.8843 ChiMac Up Low655.20.9157 Predom. Reaching478.11.2549 5B W/L Med597.01.0050 ChiMac Up Med603.70.9939 Predom. Downwind495.21.2116 5B W/L M/H529.51.1332 ChiMac Up High540.01.1111 Predom. Up Low725.30.8272 5B W/L High483.31.2414 ChiMac Off Low621.70.9650 Predom. Up L/M582.51.0300 W/L 60-40 Low892.80.6721 ChiMac Off Med552.71.0856 Predom. Up Med532.41.1269 W/L 60-40 L/M690.00.8696 ChiMac Off High464.41.2920 Predom. Up M/H498.21.2043 W/L 60-40 Med614.40.9766 ChiMac AP Low636.20.9431 Predom. Up High481.11.2472 W/L 60-40 M/H555.91.0794 ChiMac AP Med576.51.0407 Predom. Dn Low709.50.8456 W/L 60-40 High518.91.1563 ChiMac AP High501.21.1972 Predom. Dn L/M544.61.1017 5B AP Low658.90.9107 BayMac Cove Island722.20.8308 Predom. Dn Med468.21.2815 5B AP L/M544.91.1011 BayMac Shore717.50.8362 Predom. Dn M/H400.31.4989 5B AP Med487.21.2316 Harvest Moon416.61.4401      SA/DSPL Up40.22SA/DSPL Dn105.05
ORC Ref  04560004EV3 Issued on 25/02/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MaelstromUSA 107
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMelges 30 ModMeasurement12/05/2025HINMEB30107K596Plan reviewHull constructionCoredCarbon rudderYesLight stanchionsNoTrim tabNo
Length overall9.685Maximum beam2.936Draft2.153Displacement1,902Wetted area16.36IMS L9.230LSM08.677Accomod. length9.542Sink (kg/mm) 12.80
VCGD-0.191VCGM-0.208 RM Rated (kg·m) 54.6Limit of positive stability(°) 117.5 Stability Index 111.1 BLR index 0.0000Default crew weight562 Declared crew weight 560
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritYesNon-circular riggingNoFiber riggingYesBase of mastAdjustableRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P13.412IG12.165ISP14.418MDT10.116MDL10.159MDT20.074MDL20.095TL2.286MW0.180GO0.180
E4.720J3.290BAS1.300FSD0.030SFJ0.145SPLWPLTPS5.940BD0.150MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date12/05/2025
SFFP1.040FFM0.959FF0.959LCFcl5.293SG1.0190
SAFP9.480FAM0.666FA0.670LCFsh5.486HBI0.907
W144.6W244.6W344.6W444.6LCFD5.064
PD1293.6PD2291.0PD3293.4PD4292.5
WD4.540PLM9000.00GSA1.0RSA1.0RM54.5
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG264l Water BladderWater6404.260.00125l Vetus Plastic Fuel TankFuel25127.460.00Total deductible107.460.00
OTHER ITEMSIdKindDescriptionWeightLCGVCG3Battery15AH Starter Battery LiFePo4 Model G3036.410.002Battery100AH Victron LiFePo4 House Battery147.020.001Engine (IC)Yanmar 2GM20F1142.960.25Total deductible0
ORC Ref  04560004EV3 Issued on 25/02/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MaelstromUSA 107
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMn0.161.202.093.374.1540.5315/05/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ10.070.530.961.772.543.3212.30YesNo 21.3414/05/2025
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA1.516.7414.4515.609.259.5897%121.0715/05/2025A216.7814.3615.578.939.4994%117.3215/05/2025A2-Red
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04560004EV3 Issued on 25/02/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org