International Certificate2026
SUMMER STORMUSA 520
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 Angles46.0°43.6°40.9°39.3°38.2°37.5°36.9°36.7°37.8°
Beat VMG3.555.076.096.616.937.147.307.497.50
52°5.587.799.049.599.9810.3010.5710.9811.13
60°6.058.289.4210.0510.5210.9011.2111.6811.95
75°6.498.669.7810.6911.3111.8112.2412.9613.49
90°6.398.579.7010.7811.7612.5213.1614.2815.10
110°5.868.229.6410.8511.9212.7713.5815.5617.08
120°5.467.819.4110.7011.8713.1514.2616.0017.52
135°4.767.008.8910.1411.5013.0014.4816.7619.64
150°3.965.847.538.849.9311.1612.6315.8119.57
Run VMG3.435.066.527.668.609.6710.9413.7016.95
Gybe Angles139.7°140.6°141.4°146.2°146.9°144.4°144.1°145.8°148.6°
APH ToD:380.7CDL: 16.028APH ToT: 1.5760CertNo:168173
BOAT
ClassTP 52DesignerJudel/VrolijkBuilderPremier CompositesAge date05/2015Series date05/2015Offset fileTP52-USA520.offData fileUSA520
HULL
Length Overall15.848 mMaximum Beam4.424 mDraft3.501 mDisplacement6,768 kgDLR2.0137IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.357%RS Assessment-0.483%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.425m
CREW
Maximum weight1,285 kg(declared)Minimum weight1,092 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail98.29100.98Headsail Luffed66.5766.57Headsail FlyingSymmetricAsymmetric267.57267.57 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS Maximum (m²)
Trysail25.60Storm Jib19.38Heavy Weather Jib52.32
SAIL LIMITS
Headsails8Spinnakers6
STABILITY
Righting Moment 392.4 kg·m Stability Index 142.9
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  04560004NHS Issued on 28/04/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
SUMMER STORMUSA 520
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 VMG1015.3709.7590.7544.6519.5504.2493.3480.3480.2
52°645.6462.3398.4375.6360.8349.4340.6328.0323.5
60°594.8434.9382.1358.1342.1330.3321.3308.2301.4
75°554.5415.6368.1336.8318.3304.8294.1277.9266.9
90°563.8420.3371.0333.9306.1287.5273.5252.1238.5
110°614.8437.8373.6331.8301.9281.8265.1231.3210.8
120°659.9461.1382.6336.5303.2273.7252.4225.0205.5
135°756.3513.9405.1355.0313.0276.8248.6214.8183.3
150°909.9616.3478.1407.3362.7322.5285.1227.6183.9
Run VMG1050.6711.6552.1470.3418.8372.3329.2262.9212.4
Selected Courses
Windward / Leeward1032.9710.7571.4507.4469.2438.2411.2371.6346.3
All purpose772.1541.3447.5401.2371.2347.6328.1299.6281.1
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward482.31.2442
All purpose380.71.5760
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"1.0931
Downwind "popa"1.3474
70% up, 30% down "Ilhabela"1.1587
30% up, 70% down "Ilhabela-inverso"1.2595
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Predominantly Upwind417.71.4363
Predominantly Downwind383.31.5653
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP392.41.5290 Predom. Rc High275.72.1764 5B SF Bay L/M526.31.1401 TriNum AP Low494.41.2137 Predom. Dn Low609.40.9846 5B SF Bay Med454.41.3205 TriNum AP Med381.71.5720 Predom. Dn L/M444.41.3500 5B SF Bay M/H400.01.4999 TriNum AP High322.31.8617 Predom. Dn Med371.41.6156 5B SF Bay High365.21.6429 TriNum W/L Low673.80.8905 Predom. Dn M/H311.01.9290 5B AP Low550.91.0892 TriNum W/L Med482.71.2430 Predom. Dn High271.02.2140 5B AP L/M433.71.3834 TriNum W/L Hig403.11.4884 ChiMac Up Low526.71.1391 5B AP Med375.01.6001 Predom. Upwind433.01.3857 ChiMac Up Med475.31.2624 5B AP M/H330.21.8168 Predom. Reaching370.61.6188 ChiMac Up High412.31.4554 5B AP High301.31.9913 Predom. Downwind399.91.5003 ChiMac Off Low520.81.1521 5B W/L Low756.40.7932 Predom. Up Low596.61.0056 ChiMac Off Med453.61.3226 5B W/L L/M554.21.0826 Predom. Up L/M458.51.3087 ChiMac Off High370.41.6199 5B W/L Med474.01.2659 Predom. Up Med406.51.4761 ChiMac AP Low520.51.1527 5B W/L M/H414.01.4492 Predom. Up M/H370.31.6202 ChiMac AP Med462.01.2988 5B W/L High374.11.6039 Predom. Up High349.31.7176 ChiMac AP High389.61.5400 W/L 60-40 Low756.40.7932 Predom. Rc Low531.51.1288 BayMac Cove Island601.80.9970 W/L 60-40 L/M559.71.0720 Predom. Rc L/M403.91.4854 BayMac Shore596.11.0066 W/L 60-40 Med484.21.2393 Predom. Rc Med347.61.7260 Harvest Moon316.51.8959 W/L 60-40 M/H430.31.3945 Predom. Rc M/H303.11.9795 5B SF Bay Low632.40.9487 W/L 60-40 High395.81.5160      SA/DSPL Up45.79SA/DSPL Dn101.61
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance417.2
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating417.21.4381
FinRating, kevyt tuuli744.91.3424
FinRating, kova tuuli301.11.6604
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.4381
Triple Number Coastal/Long Distance Low1.2137
Triple Number Coastal/Long Distance Medium1.5722
Triple Number Coastal/Long Distance High1.8617
Triple Number Windward/Leeward Low0.9360
Triple Number Windward/Leeward Medium1.2430
Triple Number Windward/Leeward High1.4884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
For information
General Purpose Handicap (GPH)428.6
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Saronikos S All Purpose431.01.3920
Saronikos S Upwind494.11.2144
Saronikos S Downwind355.51.6876
Saronikos N All Purpose458.01.3100
Saronikos N Upwind511.11.1739
Saronikos N Downwind405.31.4804
Saronikos SW All Purpose430.51.3937
Saronikos SW Upwind502.11.1949
Saronikos SW Downwind363.81.6492
Saronikos NE All Purpose475.01.2633
Saronikos NE Upwind475.21.2626
Saronikos NE Downwind460.31.3034
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose392.41.5290
5-Band All Purpose Low599.21.0013
5-Band All Purpose L/M449.61.3344
5-Band All Purpose Med387.51.5485
5-Band All Purpose M/H339.61.7670
5-Band All Purpose High309.21.9403
Single Number Predominant Upwind416.31.4412
Single Number Predominant Reaching358.01.6761
Single Number Predominant Downwind384.41.5609
5-Band 50-50 Windward/Leeward Low756.40.7932
5-Band 50-50 Windward/Leeward L/M554.21.0826
5-Band 50-50 Windward/Leeward Med474.01.2659
5-Band 50-50 Windward/Leeward M/H414.01.4492
5-Band 50-50 Windward/Leeward High374.11.6039
5-Band 60-40 Windward/Leeward Low756.40.7932
5-Band 60-40 Windward/Leeward L/M559.71.0720
5-Band 60-40 Windward/Leeward Med484.21.2393
5-Band 60-40 Windward/Leeward M/H430.31.3945
5-Band 60-40 Windward/Leeward High395.81.5160
Triple Number 50-50 Windward/Leeward Low673.80.8905
Triple Number 50-50 Windward/Leeward Med482.81.2429
Triple Number 50-50 Windward/Leeward High403.11.4884
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward492.51.2183
Triple Number 60-40 Windward/Leeward Low675.50.8883
Triple Number 60-40 Windward/Leeward Med492.21.2190
Triple Number 60-40 Windward/Leeward High420.71.4261
Triple Number All-Purpose Low538.01.1152
Triple Number All-Purpose Med394.71.5202
Triple Number All-Purpose High331.21.8113
Triple Number Predominant Upwind Low544.61.1017
Triple Number Predominant Upwind Med414.31.4484
Triple Number Predominant Upwind High370.01.6217
Triple Number Predominant Reaching Low482.91.2426
Triple Number Predominant Reaching Med362.51.6553
Triple Number Predominant Reaching High288.22.0817
Triple Number Predominant Downwind Low541.71.1076
Triple Number Predominant Downwind Med380.71.5762
Triple Number Predominant Downwind High291.82.0560
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low494.4
Triple Number Coastal/Long Distance Medium381.6
Triple Number Coastal/Long Distance High322.3
Triple Number Windward/Leeward Low641.0
Triple Number Windward/Leeward Medium482.7
Triple Number Windward/Leeward High403.1
Predominantly Upwind417.7
Predominantly Downwind383.3
Predominantly Reaching363.5
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low1.2137
Triple Number Coastal/Long Distance Medium1.5722
Triple Number Coastal/Long Distance High1.8617
Triple Number Windward/Leeward Low0.9360
Triple Number Windward/Leeward Medium1.2430
Triple Number Windward/Leeward High1.4884
Coastal/Long Distance1.4381
Predominantly Upwind1.4363
Predominantly Downwind1.5653
For information
General Purpose Handicap (GPH)428.6
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.5760
Distanseseilas Trippeltall svak vind1.2137
Distanseseilas Trippeltall mellomvind1.5722
Distanseseilas Trippeltall sterk vind1.8617
Pølsebane Trippeltall svak vind0.9360
Pølsebane Trippeltall mellomvind1.2430
Pølsebane Trippeltall sterk vind1.4884
Motvind Singeltall1.4363
Medvind Singeltall1.5653
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Coastal/Long Distance417.21.4381
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind417.71.4363
Predominantly Downwind383.31.5653
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore353.91.6955
Cape Doctor Coastal286.62.0933
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low1.2137
Triple Number Coastal/Long Distance Medium1.5722
Triple Number Coastal/Long Distance High1.8617
Triple Number Windward/Leeward Low0.9360
Triple Number Windward/Leeward Medium1.2430
Triple Number Windward/Leeward High1.4884
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low1.2137
Triple Number Coastal/Long Distance Medium1.5722
Triple Number Coastal/Long Distance High1.8617
Triple Number Windward/Leeward Low0.9360
Triple Number Windward/Leeward Medium1.2430
Triple Number Windward/Leeward High1.4884
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Predominantly Upwind417.71.4363
Predominantly Downwind383.31.5653
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance417.21.4381
Triple Number Coastal/Long Distance Low494.41.2137
Triple Number Coastal/Long Distance Medium381.61.5722
Triple Number Coastal/Long Distance High322.31.8617
Triple Number Windward/Leeward Low641.00.9360
Triple Number Windward/Leeward Medium482.71.2430
Triple Number Windward/Leeward High403.11.4884
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1034.7710.8537.8455.1400.5362.6330.1280.8262.1
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP392.41.5290 Predom. Dn High271.02.2140 5B AP M/H330.21.8168 TriNum AP Low494.41.2137 Predom. Rc Low531.51.1288 5B AP High301.31.9913 TriNum AP Med381.71.5720 Predom. Rc L/M403.91.4854 5B SF Bay Low632.40.9487 TriNum AP High322.31.8617 Predom. Rc Med347.61.7260 5B SF Bay L/M526.31.1401 TriNum W/L Low673.80.8905 Predom. Rc M/H303.11.9795 5B SF Bay Med454.41.3205 TriNum W/L Med482.71.2430 Predom. Rc High275.72.1764 5B SF Bay M/H400.01.4999 TriNum W/L Hig403.11.4884 5B W/L Low756.40.7932 5B SF Bay High365.21.6429 Predom. Upwind433.01.3857 5B W/L L/M554.21.0826 ChiMac Up Low526.71.1391 Predom. Reaching370.61.6188 5B W/L Med474.01.2659 ChiMac Up Med475.31.2624 Predom. Downwind399.91.5003 5B W/L M/H414.01.4492 ChiMac Up High412.31.4554 Predom. Up Low596.61.0056 5B W/L High374.11.6039 ChiMac Off Low520.81.1521 Predom. Up L/M458.51.3087 W/L 60-40 Low756.40.7932 ChiMac Off Med453.61.3226 Predom. Up Med406.51.4761 W/L 60-40 L/M559.71.0720 ChiMac Off High370.41.6199 Predom. Up M/H370.31.6202 W/L 60-40 Med484.21.2393 ChiMac AP Low520.51.1527 Predom. Up High349.31.7176 W/L 60-40 M/H430.31.3945 ChiMac AP Med462.01.2988 Predom. Dn Low609.40.9846 W/L 60-40 High395.81.5160 ChiMac AP High389.61.5400 Predom. Dn L/M444.41.3500 5B AP Low550.91.0892 BayMac Cove Island601.80.9970 Predom. Dn Med371.41.6156 5B AP L/M433.71.3834 BayMac Shore596.11.0066 Predom. Dn M/H311.01.9290 5B AP Med375.01.6001 Harvest Moon316.51.8959      SA/DSPL Up45.79SA/DSPL Dn101.61
ORC Ref  04560004NHS Issued on 28/04/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
SUMMER STORMUSA 520
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassTP 52Measurement08/04/2025HINAE-PCTTP521B515Plan reviewHull constructionCarbonCarbon rudderYesLight stanchionsYesTrim tabNo
Length overall15.848Maximum beam4.424Draft3.501Displacement6,768Wetted area40.31IMS L15.533LSM014.977Accomod. length14.378Sink (kg/mm) 31.55
VCGD-1.419VCGM-1.412 RM Rated (kg·m) 392.4Limit of positive stability(°) 144.2 Stability Index 142.9 BLR index 0.0000Default crew weight1,225 Declared crew weight 1,285
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.425PBW0.106PIPA0.0044
EDL0.650ST10.054ST20.196
ST30.200ST40.116ST50.340
RIG
BackstayAdjustableForestayAdjustableInner forestayNot installedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingYesBase of mastAdjustableRunning backstaysYesCheckstaysNoSpreaders3Rotating mastNo
P20.370IG19.594ISP22.369MDT10.132MDL10.297MDT20.101MDL20.152TL3.220MW0.284GO0.313
E7.180J6.188BAS2.129FSD0.036SFJ0.611SPLWPLTPS9.023BD0.355MWT252.40MCG7.381
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodBoom incliningFlotation Date21/04/2026
SFFP0.505FFM1.454FF1.453LCFcl8.781SG1.0290
SAFP15.707FAM1.115FA1.115LCFsh9.085HBI1.243
W1171.5W2171.5W3171.5W4171.5LCFD8.754
PD1236.3PD2234.8PD3233.3PD4237.4
WD6.814PLM9000.00GSA1.0RSA1.0RM390.9
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1PVC Fuel Tank on CLFuel84239.450.00Total deductible199.450.00
OTHER ITEMSIdKindDescriptionWeightLCGVCG2BatteryStarter Battery, 12V 90Ah7.900.001Battery1X House Battery, 12V 100Ah Mastervolt Lithium9.800.001Engine (IC)YANMAR 4JH5E SD60Total deductible
ORC Ref  04560004NHS Issued on 28/04/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
International Certificate2026
SUMMER STORMUSA 520
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMn-112.162.713.625.006.1098.2920/01/2026MN-11MNLTA1.992.713.695.016.0798.2321/04/2026BlackMn-102.172.693.604.996.1198.1720/01/2026MN-2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ2-90.151.021.813.264.816.3420.33YesNo 66.5703/05/2025SS-20.060.921.773.404.836.0818.86NoInner 61.2127/05/2024GS-20.100.621.152.042.913.7813.71YesInner 27.3820/01/2026GS-2024SJS-20.600.891.241.892.683.5010.43YesInner 20.2423/01/2024
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA2-825.5821.5223.5513.4714.2994%267.5715/04/2026A2-8MH023.5221.5622.548.4411.2075%168.9020/01/2026
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverYes (manual)BoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  04560004NHS Issued on 28/04/2026 Valid until 28/02/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org