Double HandedInternational Certificate2026
Gray GooseUSA 33
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 Angles44.9°43.0°40.7°39.6°39.3°39.2°39.8°40.8°42.8°
Beat VMG2.603.704.434.714.844.914.944.934.72
52°4.055.626.556.867.017.097.157.207.04
60°4.335.936.817.127.277.387.457.537.42
75°4.556.147.017.427.667.858.008.188.21
90°4.576.257.037.517.948.278.558.979.23
110°4.476.247.207.818.298.699.069.9010.93
120°4.346.197.277.918.489.149.7110.7711.36
135°3.915.666.997.868.729.6010.3312.2314.11
150°3.254.766.057.037.948.819.8512.7815.80
Run VMG2.824.135.246.096.887.638.5311.0614.01
Gybe Angles140.3°142.4°146.2°151.5°150.1°148.9°148.6°149.4°152.4°
APH ToD:527.7CDL: 8.550APH ToT: 1.1371CertNo:US33-33
BOAT
ClassMaxi Dolphin 33 MODDesignerMaxi DolphinBuilderMaxi DolphinAge date01/2007Series date01/2003Offset fileMD33-USA33.offData fileUS33-33
HULL
Length Overall9.903Maximum Beam3.196Draft2.233Displacement2,046DLR3.0379IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.415m
CREW
Maximum weight170(default)Minimum weight120 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail32.6733.96Headsail Luffed19.3819.38Headsail FlyingSymmetricAsymmetric109.47109.47 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail8.41Storm Jib6.20Heavy Weather Jib16.72
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 55.7 Stability Index 110.2
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  04560004H27 Issued on 06/03/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedInternational Certificate2026
Gray GooseUSA 33
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 VMG1384.6973.4813.1763.7743.4733.7728.3730.9762.3
52°889.8640.0550.0524.7513.7507.5503.4500.1511.7
60°830.7607.6528.9505.9495.2488.1483.2477.9485.1
75°790.6586.0513.9485.5470.0458.9450.3440.1438.3
90°787.4576.3512.2479.5453.4435.2421.1401.2389.9
110°805.4577.3500.3460.8434.3414.3397.2363.7329.5
120°830.2581.9495.4455.4424.4394.1370.8334.2316.8
135°920.6636.5515.0458.1413.1374.9348.5294.4255.1
150°1107.4755.5595.3512.3453.3408.6365.5281.8227.9
Run VMG1278.7872.4687.4591.0523.3471.8422.0325.4257.0
Selected Courses
Windward / Leeward1331.6922.9750.2677.4633.4602.7575.2528.1509.6
All purpose1012.5713.6596.1546.9515.8493.2474.4443.1429.2
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward651.10.9215
All purpose527.71.1371
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7655
Downwind "popa"1.0788
70% up, 30% down "Ilhabela"0.8386
30% up, 70% down "Ilhabela-inverso"0.9608
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Predominantly Upwind585.11.0254
Predominantly Downwind510.81.1747
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP543.41.1041 Predom. Rc High412.01.4565 5B SF Bay L/M700.80.8561 TriNum AP Low654.80.9162 Predom. Dn Low776.70.7725 5B SF Bay Med619.60.9684 TriNum AP Med527.31.1380 Predom. Dn L/M579.61.0351 5B SF Bay M/H563.71.0643 TriNum AP High467.41.2838 Predom. Dn Med497.21.2067 5B SF Bay High527.51.1375 TriNum W/L Low878.80.6828 Predom. Dn M/H431.41.3909 5B AP Low723.80.8290 TriNum W/L Med650.10.9229 Predom. Dn High381.21.5738 5B AP L/M584.21.0270 TriNum W/L Hig564.41.0631 ChiMac Up Low717.30.8365 5B AP Med520.41.1529 Predom. Upwind608.30.9864 ChiMac Up Med657.10.9132 5B AP M/H475.81.2610 Predom. Reaching514.81.1655 ChiMac Up High584.61.0264 5B AP High446.11.3449 Predom. Downwind531.41.1291 ChiMac Off Low672.20.8926 5B W/L Low981.90.6111 Predom. Up Low803.40.7468 ChiMac Off Med594.01.0101 5B W/L L/M732.70.8189 Predom. Up L/M628.00.9554 ChiMac Off High496.01.2096 5B W/L Med640.40.9368 Predom. Up Med572.51.0481 ChiMac AP Low691.90.8671 5B W/L M/H576.81.0402 Predom. Up M/H541.11.1089 ChiMac AP Med623.70.9620 5B W/L High533.11.1256 Predom. Up High525.91.1410 ChiMac AP High539.31.1125 W/L 60-40 Low992.70.6044 Predom. Rc Low702.10.8546 BayMac Cove Island794.50.7552 W/L 60-40 L/M748.00.8022 Predom. Rc L/M546.01.0989 BayMac Shore789.10.7604 W/L 60-40 Med662.30.9060 Predom. Rc Med485.91.2347 Harvest Moon445.31.3475 W/L 60-40 M/H607.60.9875 Predom. Rc M/H441.51.3589 5B SF Bay Low830.20.7227 W/L 60-40 High573.61.0460      SA/DSPL Up32.21SA/DSPL Dn87.97
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance572.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating572.31.0485
FinRating, kevyt tuuli967.01.0341
FinRating, kova tuuli447.21.1181
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0485
Triple Number Coastal/Long Distance Low0.9162
Triple Number Coastal/Long Distance Medium1.1381
Triple Number Coastal/Long Distance High1.2838
Triple Number Windward/Leeward Low0.7172
Triple Number Windward/Leeward Medium0.9229
Triple Number Windward/Leeward High1.0631
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
For information
General Purpose Handicap (GPH)587.5
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Saronikos S All Purpose589.91.0172
Saronikos S Upwind695.20.8631
Saronikos S Downwind458.71.3082
Saronikos N All Purpose589.91.0172
Saronikos N Upwind724.20.8285
Saronikos N Downwind525.41.1419
Saronikos SW All Purpose589.31.0182
Saronikos SW Upwind701.90.8548
Saronikos SW Downwind478.21.2548
Saronikos NE All Purpose652.50.9196
Saronikos NE Upwind676.00.8875
Saronikos NE Downwind595.81.0071
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose543.41.1041
5-Band All Purpose Low786.80.7626
5-Band All Purpose L/M602.70.9955
5-Band All Purpose Med534.31.1229
5-Band All Purpose M/H486.01.2345
5-Band All Purpose High453.71.3225
Single Number Predominant Upwind583.31.0286
Single Number Predominant Reaching497.01.2073
Single Number Predominant Downwind512.11.1716
5-Band 50-50 Windward/Leeward Low981.90.6111
5-Band 50-50 Windward/Leeward L/M732.70.8189
5-Band 50-50 Windward/Leeward Med640.40.9368
5-Band 50-50 Windward/Leeward M/H576.81.0402
5-Band 50-50 Windward/Leeward High533.11.1256
5-Band 60-40 Windward/Leeward Low992.70.6044
5-Band 60-40 Windward/Leeward L/M748.00.8022
5-Band 60-40 Windward/Leeward Med662.30.9060
5-Band 60-40 Windward/Leeward M/H607.60.9875
5-Band 60-40 Windward/Leeward High573.61.0460
Triple Number 50-50 Windward/Leeward Low878.80.6828
Triple Number 50-50 Windward/Leeward Med650.20.9228
Triple Number 50-50 Windward/Leeward High564.41.0631
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward673.30.8912
Triple Number 60-40 Windward/Leeward Low890.50.6738
Triple Number 60-40 Windward/Leeward Med670.90.8944
Triple Number 60-40 Windward/Leeward High597.61.0039
Triple Number All-Purpose Low709.90.8452
Triple Number All-Purpose Med541.81.1075
Triple Number All-Purpose High476.81.2584
Triple Number Predominant Upwind Low734.60.8168
Triple Number Predominant Upwind Med579.91.0347
Triple Number Predominant Upwind High547.71.0954
Triple Number Predominant Reaching Low641.30.9356
Triple Number Predominant Reaching Med503.11.1925
Triple Number Predominant Reaching High424.41.4139
Triple Number Predominant Downwind Low696.00.8620
Triple Number Predominant Downwind Med505.21.1878
Triple Number Predominant Downwind High401.91.4930
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low654.9
Triple Number Coastal/Long Distance Medium527.2
Triple Number Coastal/Long Distance High467.4
Triple Number Windward/Leeward Low836.6
Triple Number Windward/Leeward Medium650.1
Triple Number Windward/Leeward High564.4
Predominantly Upwind585.1
Predominantly Downwind510.8
Predominantly Reaching497.8
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9162
Triple Number Coastal/Long Distance Medium1.1381
Triple Number Coastal/Long Distance High1.2838
Triple Number Windward/Leeward Low0.7172
Triple Number Windward/Leeward Medium0.9229
Triple Number Windward/Leeward High1.0631
Coastal/Long Distance1.0485
Predominantly Upwind1.0254
Predominantly Downwind1.1747
For information
General Purpose Handicap (GPH)587.5
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.1371
Distanseseilas Trippeltall svak vind0.9162
Distanseseilas Trippeltall mellomvind1.1381
Distanseseilas Trippeltall sterk vind1.2838
Pølsebane Trippeltall svak vind0.7172
Pølsebane Trippeltall mellomvind0.9229
Pølsebane Trippeltall sterk vind1.0631
Motvind Singeltall1.0254
Medvind Singeltall1.1747
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Coastal/Long Distance572.31.0485
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind585.11.0254
Predominantly Downwind510.81.1747
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore515.21.1646
Cape Doctor Coastal433.41.3845
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9162
Triple Number Coastal/Long Distance Medium1.1381
Triple Number Coastal/Long Distance High1.2838
Triple Number Windward/Leeward Low0.7172
Triple Number Windward/Leeward Medium0.9229
Triple Number Windward/Leeward High1.0631
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.9162
Triple Number Coastal/Long Distance Medium1.1381
Triple Number Coastal/Long Distance High1.2838
Triple Number Windward/Leeward Low0.7172
Triple Number Windward/Leeward Medium0.9229
Triple Number Windward/Leeward High1.0631
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Predominantly Upwind585.11.0254
Predominantly Downwind510.81.1747
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance572.31.0485
Triple Number Coastal/Long Distance Low654.90.9162
Triple Number Coastal/Long Distance Medium527.21.1381
Triple Number Coastal/Long Distance High467.41.2838
Triple Number Windward/Leeward Low836.60.7172
Triple Number Windward/Leeward Medium650.10.9229
Triple Number Windward/Leeward High564.41.0631
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1326.3917.8706.8613.2552.8512.4476.6417.1403.2
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP543.41.1041 Predom. Dn High381.21.5738 5B AP M/H475.81.2610 TriNum AP Low654.80.9162 Predom. Rc Low702.10.8546 5B AP High446.11.3449 TriNum AP Med527.31.1380 Predom. Rc L/M546.01.0989 5B SF Bay Low830.20.7227 TriNum AP High467.41.2838 Predom. Rc Med485.91.2347 5B SF Bay L/M700.80.8561 TriNum W/L Low878.80.6828 Predom. Rc M/H441.51.3589 5B SF Bay Med619.60.9684 TriNum W/L Med650.10.9229 Predom. Rc High412.01.4565 5B SF Bay M/H563.71.0643 TriNum W/L Hig564.41.0631 5B W/L Low981.90.6111 5B SF Bay High527.51.1375 Predom. Upwind608.30.9864 5B W/L L/M732.70.8189 ChiMac Up Low717.30.8365 Predom. Reaching514.81.1655 5B W/L Med640.40.9368 ChiMac Up Med657.10.9132 Predom. Downwind531.41.1291 5B W/L M/H576.81.0402 ChiMac Up High584.61.0264 Predom. Up Low803.40.7468 5B W/L High533.11.1256 ChiMac Off Low672.20.8926 Predom. Up L/M628.00.9554 W/L 60-40 Low992.70.6044 ChiMac Off Med594.01.0101 Predom. Up Med572.51.0481 W/L 60-40 L/M748.00.8022 ChiMac Off High496.01.2096 Predom. Up M/H541.11.1089 W/L 60-40 Med662.30.9060 ChiMac AP Low691.90.8671 Predom. Up High525.91.1410 W/L 60-40 M/H607.60.9875 ChiMac AP Med623.70.9620 Predom. Dn Low776.70.7725 W/L 60-40 High573.61.0460 ChiMac AP High539.31.1125 Predom. Dn L/M579.61.0351 5B AP Low723.80.8290 BayMac Cove Island794.50.7552 Predom. Dn Med497.21.2067 5B AP L/M584.21.0270 BayMac Shore789.10.7604 Predom. Dn M/H431.41.3909 5B AP Med520.41.1529 Harvest Moon445.31.3475      SA/DSPL Up32.21SA/DSPL Dn87.97
ORC Ref  04560004H27 Issued on 06/03/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedInternational Certificate2026
Gray GooseUSA 33
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMaxi Dolphin 33 MODMeasurement21/08/2025HINIT-MDXMD3307M604Plan reviewHull constructionCarbonCarbon rudderYesLight stanchionsNoTrim tabNo
Length overall9.903Maximum beam3.196Draft2.233Displacement2,046Wetted area16.97IMS L9.030LSM08.765Accomod. length9.903Sink (kg/mm) 13.43
VCGD-0.045VCGM-0.053 RM Rated (kg·m) 55.7Limit of positive stability(°) 116.5 Stability Index 110.2 BLR index 0.0000Default crew weight170 Declared crew weight 510
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.415PBW0.106PIPA0.0032
EDL1.200ST10.041ST20.180
ST30.180ST40.113ST50.265
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialCarbonSingle headsail furlerNoMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P10.897IG10.941ISP11.901MDT10.110MDL10.177MDT20.086MDL20.137TL0.754MW0.141GO0.191
E4.407J2.980BAS0.834FSD0.030SFJ0.398SPLWPLTPS5.267BD0.164MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date21/08/2025
SFFP0.634FFM1.107FF1.106LCFcl5.246SG1.0240
SAFP9.903FAM0.076FA0.089LCFsh5.475HBI0.941
W135.0W235.0W335.0W435.0LCFD5.949
PD1209.0PD2206.2PD3211.1PD4214.6
WD4.483PLM9000.00GSA1.0RSA1.0RM58.8
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1.3 to stbd from CLFuel114866.360.03Total deductible726.360.03
OTHER ITEMSIdKindDescriptionWeightLCGVCG#Engine (IC)Yanmar 3JH20Total deductible
ORC Ref  04560004H27 Issued on 06/03/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Double HandedInternational Certificate2026
Gray GooseUSA 33
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMn1.241.532.153.143.9632.6713/08/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ20.070.531.001.792.483.2311.28YesNo 19.3822/08/2025
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA1.5+14.9513.6714.319.059.7093%109.4722/08/2025A013.4712.2012.845.847.6776%66.3822/08/2025
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04560004H27 Issued on 06/03/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org