Club
Certificate
2023

Boat

AFTERSCHOCK

USA 82

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 Angles41.8°39.4°37.6°36.9°36.4°36.0°36.3°
Beat VMG3.874.584.935.095.185.245.26
52°5.786.596.927.057.137.187.22
60°6.026.757.077.217.297.347.40
75°6.156.847.197.407.517.607.70
90°6.036.797.207.477.687.838.04
110°5.636.687.237.567.828.008.31
120°5.476.577.177.567.918.218.72
135°4.936.096.867.337.718.099.03
150°4.175.306.246.917.337.698.48
Run VMG3.614.595.426.106.697.157.84
Gybe Angles144.2°148.7°152.9°158.6°171.8°177.2°179.0°

APH: 554.9

CDL: 9.215

GPH: 616.7

CertNo: US6341

BOAT
ClassSCHOCK 35DesignerShad TurnerBuilderW.D. SCHOCKAge date01/2001Series date01/1984Offset fileUS18732.OFFData fileUS6341
HULL
Length Overall10.775 mMaximum Beam3.633 mDraft2.150 mDisplacement5,120 kgDLR6.2161IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.381m
CREW
Maximum weight502 kgMinimum weight377 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail33.7234.28Headsail Luffed48.3648.36Headsail FlyingSymmetric91.7391.73Asymmetric
STORM SAIL AREAS (m²)
Trysail9.84Storm Jib11.24Heavy Weather Jib30.33
SAIL LIMITS
Headsails5  Spinnakers4
STABILITY
Righting MomentN/AStability 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.
ORC Ref  03330002JBDIssued on 25/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

AFTERSCHOCK

USA 82

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 VMG929.9785.7730.2706.8694.5686.8684.6
52°622.8546.3520.3510.6505.2501.7498.5
60°598.4533.0508.9499.5494.0490.4486.4
75°585.1526.0500.4486.7479.3473.9467.4
90°597.0530.0500.1482.1469.0459.5447.9
110°639.8538.8498.1476.0460.4450.1433.0
120°658.0548.3502.0476.0455.4438.6412.9
135°729.8591.1524.6491.3467.2444.9398.6
150°864.2679.9577.0521.3490.9468.2424.7
Run VMG997.9785.0664.5589.8538.5503.4459.2
Selected Courses
Windward / Leeward963.9785.4697.3648.3616.5595.1571.9
All purpose746.6625.0569.2539.5520.8507.6488.9
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward672.10.8927
All purpose554.91.0813
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8048
Downwind "popa"0.9255
70% up, 30% down "Ilhabela"0.8376
30% up, 70% down "Ilhabela-inverso"0.8856
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Predominantly Upwind592.41.0129
Predominantly Downwind565.21.0616
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low685.80.8749
Triple Number All Purpose Medium551.81.0873
Triple Number All Purpose High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Predominantly Upwind592.41.0129
Predominantly Downwind565.21.0616
Predominantly Upwind Low742.00.8086
Predominantly Upwind Medium609.90.9838
Predominantly Upwind High582.71.0297
Predominantly Downwind Low765.00.7843
Predominantly Downwind Medium564.11.0636
Predominantly Downwind High476.21.2601
Chicago-Mac Upwind0.9970
Chicago-Mac All Purpose1.0177
Chicago-Mac Downwind1.0436
Bayview-Mac Cove Island0.9607
Bayview-Mac Shore0.9709
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching529.71.1326
Predominantly Reaching Low627.60.9560
Predominantly Reaching Medium525.81.1412
Predominantly Reaching High473.81.2665
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low950.10.6315
5-Band Low / Medium805.90.7445
5-Band Medium658.10.9118
5-Band Medium / High599.31.0012
5-Band High575.91.0419
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance600.5
Triple Number Coastal/Long Distance Low685.8
Triple Number Coastal/Long Distance Medium551.8
Triple Number Coastal/Long Distance High503.9
Triple Number Windward/Leeward Low874.6
Triple Number Windward/Leeward Medium668.1
Triple Number Windward/Leeward High591.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8749
Triple Number Coastal/Long Distance Medium1.0873
Triple Number Coastal/Long Distance High1.1907
Triple Number Windward/Leeward Low0.6860
Triple Number Windward/Leeward Medium0.8981
Triple Number Windward/Leeward High1.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low685.8
Triple Number Coastal/Long Distance Medium551.8
Triple Number Coastal/Long Distance High503.9
Triple Number Windward/Leeward Low874.6
Triple Number Windward/Leeward Medium668.1
Triple Number Windward/Leeward High591.7
Predominantly Upwind592.4
Predominantly Downwind565.2
Predominantly Reaching542.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8749
Triple Number Coastal/Long Distance Medium1.0873
Triple Number Coastal/Long Distance High1.1907
Triple Number Windward/Leeward Low0.6860
Triple Number Windward/Leeward Medium0.8981
Triple Number Windward/Leeward High1.0140
Coastal/Long Distance0.9992
Predominantly Upwind1.0129
Predominantly Downwind1.0616
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8749
Tretall Distanseseilas Mellomvind1.0873
Tretall Distanseseilas Mye vind1.1907
Tretall Pølsebane Lite vind0.6860
Tretall Pølsebane Mellomvind0.8981
Tretall Pølsebane Mye vind1.0140
Distanseseilas ett tall (OSN 8-16kn)0.9992
Distanseseilas ett tall (APH 6-20kn)1.0813
Enkeltall Motvind1.0129
Enkeltall Medvind1.0616
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Coastal/Long Distance600.50.9992
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind592.41.0129
Predominantly Downwind565.21.0616
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore578.81.0366
Cape Doctor Coastal494.51.2133
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8749
Triple Number Coastal/Long Distance Medium1.0873
Triple Number Coastal/Long Distance High1.1907
Triple Number Windward/Leeward Low0.6860
Triple Number Windward/Leeward Medium0.8981
Triple Number Windward/Leeward High1.0140
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8749
Triple Number Coastal/Long Distance Medium1.0873
Triple Number Coastal/Long Distance High1.1907
Triple Number Windward/Leeward Low0.6860
Triple Number Windward/Leeward Medium0.8981
Triple Number Windward/Leeward High1.0140
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Predominantly Upwind592.41.0129
Predominantly Downwind565.21.0616
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance600.50.9992
Triple Number Coastal/Long Distance Low685.80.8749
Triple Number Coastal/Long Distance Medium551.81.0873
Triple Number Coastal/Long Distance High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance967.3742.8634.6573.2539.3512.7471.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low685.80.8749
Triple Number All Purpose Medium551.81.0873
Triple Number All Purpose High503.91.1907
Triple Number Windward/Leeward Low874.60.6860
Triple Number Windward/Leeward Medium668.10.8981
Triple Number Windward/Leeward High591.71.0140
Predominantly Upwind592.41.0129
Predominantly Downwind565.21.0616
Predominantly Upwind Low742.00.8086
Predominantly Upwind Medium609.90.9838
Predominantly Upwind High582.71.0297
Predominantly Downwind Low765.00.7843
Predominantly Downwind Medium564.11.0636
Predominantly Downwind High476.21.2601
Chicago-Mac Upwind0.9970
Chicago-Mac All Purpose1.0177
Chicago-Mac Downwind1.0436
Bayview-Mac Cove Island0.9607
Bayview-Mac Shore0.9709
Harvest Moon Regatta490.51.2233
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy581.61.0316
San Francisco Bay Medium659.50.9097
Predominantly Reaching529.71.1326
Predominantly Reaching Low627.60.9560
Predominantly Reaching Medium525.81.1412
Predominantly Reaching High473.81.2665
Windward/Leeward 60-40 Low871.30.6887
Windward/Leeward 60-40 Medium685.10.8757
Windward/Leeward 60-40 High624.40.9608
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low950.10.6315
5-Band Low / Medium805.90.7445
5-Band Medium658.10.9118
5-Band Medium / High599.31.0012
5-Band High575.91.0419
ORC Ref  03330002JBDIssued on 25/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

AFTERSCHOCK

USA 82

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSCHOCK 35MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA10.775Max. Beam3.633Draft2.150Displacement5,120Wetted area24.76IMS L9.502LSM09.373Acc. length10.775Sink (kg/mm) 18.11
VCGD0.158VCGM0.114RM Rated (kg·m) 108.9Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.381PBW0.098PIPA0.0027
PSD0.024PHD0.040PHL0.134
PSA17.0°ESL0.945
ST10.021ST20.094ST30.094
ST40.043ST50.207
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2Rotating mastNo
P13.411IG14.935ISP14.935MDT10.107MDL10.177MDT20.101MDL20.125TL2.752MW0.119GO0.134
E4.191J4.191BAS1.478FSD0.030SFJ-0.009SPL4.275WPLTPS0.000BD0.143MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered109.3Flotation Date21/04/2023MeasurerComment
SFFP0.421FFMFF1.074LCFcl5.749SG1.0100
SAFP9.836FAMFA0.877LCFsh6.031HBI0.987
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGAStbd settee alloy tankFuel50384.990.00Total deductible324.990.00
Total deductible
ORC Ref  03330002JBDIssued on 25/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

AFTERSCHOCK

USA 82

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.150.881.582.733.5733.7203/09/2023New main 2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentGenoa0.080.801.553.134.766.5015.17NoNo 48.3603/09/2023New genoa 2023
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment202664614.7414.7414.747.557.1491.73
ORC Ref  03330002JBDIssued on 25/04/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org