Club
Certificate
Non Spinnaker
2022

Boat

SKIMMER

USA 160

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles44.4°42.3°42.0°41.1°40.6°40.5°41.4°
Beat VMG2.803.393.854.154.264.304.35
52°4.335.135.746.056.196.246.29
60°4.595.425.966.236.376.446.46
75°4.795.656.126.376.576.726.88
90°4.735.636.146.446.696.937.27
110°4.385.326.016.366.636.927.52
120°4.135.055.826.256.536.807.42
135°3.614.545.335.966.316.587.15
150°3.083.994.745.435.976.306.81
Run VMG2.693.554.325.005.646.106.66
Gybe Angles173.0°177.2°179.9°179.9°179.9°179.9°179.9°

APH: 681.6

CDL: 6.610

GPH: 771.3

CertNo: USA160

BOAT
ClassAlerion Express 28DesignerSchumacherBuilderTPIAge date02/2001Series date02/1990Offset fileALR28JT1.offData fileUSA160NS
HULL
Length Overall8.610 mMaximum Beam2.490 mDraft1.405 mDisplacement2,582 kgDLR6.6064IMS DivisionPerformanceDynamic Allowance0.290%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.406m
CREW
Maximum weight275 kgMinimum weight190 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail23.1523.78Headsail Luffed11.2311.23Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail6.71Storm Jib4.18Heavy Weather Jib11.28
SAIL LIMITS
Headsails5  Spinnakers0 * No spinnaker pole aboard
STABILITY
Righting Moment39.2 kg·mStability IndexN/A
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.

Club
Certificate
Non Spinnaker
2022

Boat

SKIMMER

USA 160

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1283.71061.1935.9867.2845.0837.9827.9
52°832.1701.4626.6594.6581.8577.0572.2
60°784.2664.3604.3578.1564.9558.8557.4
75°752.0637.7588.6564.7548.1535.6523.5
90°761.5639.4586.3559.0538.3519.7495.5
110°821.8676.3598.8565.7542.7520.3478.8
120°872.5712.6618.5576.0551.4529.2485.3
135°996.0792.2674.9604.4570.2547.2503.4
150°1169.7903.1759.2663.4603.4571.8528.8
Run VMG1339.71014.8833.8719.8638.5590.0540.4
Selected Courses
Windward / Leeward1311.71038.0884.9793.5741.8714.0684.1
All purpose1000.9811.7709.1651.8620.5601.6575.7
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward838.40.7157
All purpose681.60.8803
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.6307
Downwind "popa"0.7398
70% up, 30% down "Ilhabela"0.6599
30% up, 70% down "Ilhabela-inverso"0.7033
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Predominantly Upwind730.80.8210
Predominantly Downwind700.80.8561
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low906.30.6620
Triple Number All Purpose Medium676.40.8871
Triple Number All Purpose High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Predominantly Upwind730.80.8210
Predominantly Downwind700.80.8561
Predominantly Upwind Low994.20.6035
Predominantly Upwind Medium747.50.8027
Predominantly Upwind High691.60.8676
Predominantly Downwind Low1014.20.5916
Predominantly Downwind Medium695.80.8623
Predominantly Downwind High566.21.0597
Chicago-Mac Upwind0.8049
Chicago-Mac All Purpose0.8208
Chicago-Mac Downwind0.8391
Bayview-Mac Cove Island0.7593
Bayview-Mac Shore0.7709
Victoria-Maui0.8969
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance744.4
Triple Number Coastal/Long Distance Low906.3
Triple Number Coastal/Long Distance Medium676.4
Triple Number Coastal/Long Distance High596.6
Triple Number Windward/Leeward Low1174.9
Triple Number Windward/Leeward Medium831.4
Triple Number Windward/Leeward High709.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6620
Triple Number Coastal/Long Distance Medium0.8871
Triple Number Coastal/Long Distance High1.0057
Triple Number Windward/Leeward Low0.5107
Triple Number Windward/Leeward Medium0.7217
Triple Number Windward/Leeward High0.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low906.3
Triple Number Coastal/Long Distance Medium676.4
Triple Number Coastal/Long Distance High596.6
Triple Number Windward/Leeward Low1174.9
Triple Number Windward/Leeward Medium831.4
Triple Number Windward/Leeward High709.7
Predominantly Upwind730.8
Predominantly Downwind700.8
Predominantly Reaching665.8
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6620
Triple Number Coastal/Long Distance Medium0.8871
Triple Number Coastal/Long Distance High1.0057
Triple Number Windward/Leeward Low0.5107
Triple Number Windward/Leeward Medium0.7217
Triple Number Windward/Leeward High0.8454
Coastal/Long Distance0.8060
Predominantly Upwind0.8210
Predominantly Downwind0.8561
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)0.8060
Tretall Distanseseilas Lite vind0.6620
Tretall Distanseseilas Mellomvind0.8871
Tretall Distanseseilas Mye vind1.0057
Tretall Pølsebane Lite vind0.5107
Tretall Pølsebane Mellomvind0.7217
Tretall Pølsebane Mye vind0.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Coastal/Long Distance744.40.8060
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind730.80.8210
Predominantly Downwind700.80.8561
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore693.10.8657
Cape Doctor Coastal583.51.0283
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6620
Triple Number Coastal/Long Distance Medium0.8871
Triple Number Coastal/Long Distance High1.0057
Triple Number Windward/Leeward Low0.5107
Triple Number Windward/Leeward Medium0.7217
Triple Number Windward/Leeward High0.8454
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.6620
Triple Number Coastal/Long Distance Medium0.8871
Triple Number Coastal/Long Distance High1.0057
Triple Number Windward/Leeward Low0.5107
Triple Number Windward/Leeward Medium0.7217
Triple Number Windward/Leeward High0.8454
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Predominantly Upwind730.80.8210
Predominantly Downwind700.80.8561
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance744.40.8060
Triple Number Coastal/Long Distance Low906.30.6620
Triple Number Coastal/Long Distance Medium676.40.8871
Triple Number Coastal/Long Distance High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1314.5976.3799.1696.7644.2607.9549.5
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low906.30.6620
Triple Number All Purpose Medium676.40.8871
Triple Number All Purpose High596.61.0057
Triple Number Windward/Leeward Low1174.90.5107
Triple Number Windward/Leeward Medium831.40.7217
Triple Number Windward/Leeward High709.70.8454
Predominantly Upwind730.80.8210
Predominantly Downwind700.80.8561
Predominantly Upwind Low994.20.6035
Predominantly Upwind Medium747.50.8027
Predominantly Upwind High691.60.8676
Predominantly Downwind Low1014.20.5916
Predominantly Downwind Medium695.80.8623
Predominantly Downwind High566.21.0597
Chicago-Mac Upwind0.8049
Chicago-Mac All Purpose0.8208
Chicago-Mac Downwind0.8391
Bayview-Mac Cove Island0.7593
Bayview-Mac Shore0.7709
Harvest Moon Regatta596.81.0053
Victoria-Maui0.8969
5-Band
Windward/Leeward
Time On DistanceTime On Time
5-Band Low1290.60.4649
5-Band Low / Medium1063.40.5642
5-Band Medium813.80.7373
5-Band Medium / High720.30.8330
5-Band High689.30.8705

Club
Certificate
Non Spinnaker
2022

Boat

SKIMMER

USA 160

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassAlerion Express 28MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.610Max. Beam2.490Draft1.405Displacement2,582Wetted area14.70IMS L7.290LSM07.311Acc. length8.092Sink (kg/mm) 10.74
VCGD0.051VCGM0.013RM Measured (kg·m) 39.2RM Default (kg·m) 39.2Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.406PBW0.122PIPA0.0016
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/CheckstaysSpreaders2
P10.060IG9.140ISP9.140MDT10.082MDL10.133MDT20.063MDL20.104TLMWGO
E3.810J2.970BAS1.150FSDSFJ0.130SPLWPLTPS2.970BDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG estimatedFlotation Date01/07/2022MeasurerComment
SFFP0.491FFMFF0.893LCFcl4.579SG
SAFP8.307FAMFA0.638LCFsh4.754HBI0.691
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
Non Spinnaker
2022

Boat

SKIMMER

USA 160

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateMakerMaterialCommentMI-10.132.423.2023.1518/05/2022North ChesapeakeUnknown
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialCommentJib0.080.340.641.261.882.508.89NoNo 11.2318/05/2022North ChesapeakeUnknown