Club
Certificate
2023

Boat

CHEWBACCA

USA 42250

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°39.3°37.6°37.0°36.4°36.0°35.8°
Beat VMG4.505.275.655.876.016.106.19
52°6.747.597.978.158.268.358.45
60°7.037.808.168.348.478.558.67
75°7.217.948.328.578.738.869.03
90°7.097.888.338.658.909.119.42
110°6.457.658.308.729.079.359.79
120°6.287.528.238.719.139.5210.30
135°5.656.967.878.438.899.3410.36
150°4.786.007.037.828.368.819.72
Run VMG4.145.196.096.867.498.058.91
Gybe Angles143.3°146.2°149.8°155.9°162.8°175.4°178.4°

APH: 482.4

CDL: 11.905

GPH: 535.8

CertNo: US6819

BOAT
ClassNM 50 IORDesignerNELSON/MAREKBuilderKIWIAge date02/1987Series date02/1987Offset fileNELSONMAREK50-USA42250.offData fileUS6819
HULL
Length Overall15.128 mMaximum Beam4.542 mDraft2.749 mDisplacement10,313 kgDLR7.0992IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 2 bladesDiameter0.522m
CREW
Maximum weight822 kgMinimum weight616 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail65.5266.77Headsail Luffed94.2694.26Headsail FlyingSymmetric176.43176.43Asymmetric170.60170.60 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail19.19Storm Jib21.02Heavy Weather Jib56.74
SAIL LIMITS
Headsails7  Spinnakers5 * Asymmetric may be tacked on the pole
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
capnchewy@yahoo.com
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  04560002QCKIssued on 17/07/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

CHEWBACCA

USA 42250

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 VMG800.2683.1636.6613.4599.5590.1581.9
52°534.3474.1451.9441.8435.7431.4426.1
60°511.8461.3441.1431.4425.2420.9415.2
75°499.1453.5432.7420.2412.4406.4398.5
90°508.1456.6431.9416.2404.4395.1382.0
110°558.5470.7433.7413.0397.1385.2367.9
120°573.6478.7437.4413.4394.5378.2349.5
135°636.7517.2457.7427.2405.0385.3347.4
150°753.4600.2511.8460.2430.4408.8370.5
Run VMG870.0693.1590.9525.0480.9447.2403.9
Selected Courses
Windward / Leeward835.1688.1613.8569.2540.2518.7492.9
All purpose645.3545.1497.3469.9452.0438.5419.2
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward588.61.0193
All purpose482.41.2438
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.9323
Downwind "popa"1.0471
70% up, 30% down "Ilhabela"0.9640
30% up, 70% down "Ilhabela-inverso"1.0098
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Predominantly Upwind514.01.1674
Predominantly Downwind494.31.2139
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low595.21.0081
Triple Number All Purpose Medium480.81.2479
Triple Number All Purpose High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Predominantly Upwind514.01.1674
Predominantly Downwind494.31.2139
Predominantly Upwind Low642.50.9339
Predominantly Upwind Medium529.21.1338
Predominantly Upwind High500.21.1995
Predominantly Downwind Low667.30.8991
Predominantly Downwind Medium496.11.2095
Predominantly Downwind High416.71.4397
Chicago-Mac Upwind1.1490
Chicago-Mac All Purpose1.1684
Chicago-Mac Downwind1.1929
Bayview-Mac Cove Island1.1054
Bayview-Mac Shore1.1182
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching459.61.3054
Predominantly Reaching Low543.51.1040
Predominantly Reaching Medium456.81.3135
Predominantly Reaching High409.01.4672
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low823.80.7283
5-Band Low / Medium704.20.8520
5-Band Medium577.51.0390
5-Band Medium / High522.21.1489
5-Band High497.31.2064
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance523.4
Triple Number Coastal/Long Distance Low595.2
Triple Number Coastal/Long Distance Medium480.8
Triple Number Coastal/Long Distance High434.6
Triple Number Windward/Leeward Low761.6
Triple Number Windward/Leeward Medium586.7
Triple Number Windward/Leeward High514.4
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0081
Triple Number Coastal/Long Distance Medium1.2479
Triple Number Coastal/Long Distance High1.3805
Triple Number Windward/Leeward Low0.7878
Triple Number Windward/Leeward Medium1.0226
Triple Number Windward/Leeward High1.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low595.2
Triple Number Coastal/Long Distance Medium480.8
Triple Number Coastal/Long Distance High434.6
Triple Number Windward/Leeward Low761.6
Triple Number Windward/Leeward Medium586.7
Triple Number Windward/Leeward High514.4
Predominantly Upwind514.0
Predominantly Downwind494.3
Predominantly Reaching471.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0081
Triple Number Coastal/Long Distance Medium1.2479
Triple Number Coastal/Long Distance High1.3805
Triple Number Windward/Leeward Low0.7878
Triple Number Windward/Leeward Medium1.0226
Triple Number Windward/Leeward High1.1665
Coastal/Long Distance1.1463
Predominantly Upwind1.1674
Predominantly Downwind1.2139
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind1.0081
Tretall Distanseseilas Mellomvind1.2479
Tretall Distanseseilas Mye vind1.3805
Tretall Pølsebane Lite vind0.7878
Tretall Pølsebane Mellomvind1.0226
Tretall Pølsebane Mye vind1.1665
Distanseseilas ett tall (OSN 8-16kn)1.1463
Distanseseilas ett tall (APH 6-20kn)1.2438
Enkeltall Motvind1.1674
Enkeltall Medvind1.2139
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Coastal/Long Distance523.41.1463
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind514.01.1674
Predominantly Downwind494.31.2139
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore500.61.1985
Cape Doctor Coastal425.01.4118
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0081
Triple Number Coastal/Long Distance Medium1.2479
Triple Number Coastal/Long Distance High1.3805
Triple Number Windward/Leeward Low0.7878
Triple Number Windward/Leeward Medium1.0226
Triple Number Windward/Leeward High1.1665
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low1.0081
Triple Number Coastal/Long Distance Medium1.2479
Triple Number Coastal/Long Distance High1.3805
Triple Number Windward/Leeward Low0.7878
Triple Number Windward/Leeward Medium1.0226
Triple Number Windward/Leeward High1.1665
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Predominantly Upwind514.01.1674
Predominantly Downwind494.31.2139
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance523.41.1463
Triple Number Coastal/Long Distance Low595.21.0081
Triple Number Coastal/Long Distance Medium480.81.2479
Triple Number Coastal/Long Distance High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance838.6650.3556.7500.1468.5443.2403.2
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low595.21.0081
Triple Number All Purpose Medium480.81.2479
Triple Number All Purpose High434.61.3805
Triple Number Windward/Leeward Low761.60.7878
Triple Number Windward/Leeward Medium586.71.0226
Triple Number Windward/Leeward High514.41.1665
Predominantly Upwind514.01.1674
Predominantly Downwind494.31.2139
Predominantly Upwind Low642.50.9339
Predominantly Upwind Medium529.21.1338
Predominantly Upwind High500.21.1995
Predominantly Downwind Low667.30.8991
Predominantly Downwind Medium496.11.2095
Predominantly Downwind High416.71.4397
Chicago-Mac Upwind1.1490
Chicago-Mac All Purpose1.1684
Chicago-Mac Downwind1.1929
Bayview-Mac Cove Island1.1054
Bayview-Mac Shore1.1182
Harvest Moon Regatta425.21.4113
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy503.81.1910
San Francisco Bay Medium576.51.0408
Predominantly Reaching459.61.3054
Predominantly Reaching Low543.51.1040
Predominantly Reaching Medium456.81.3135
Predominantly Reaching High409.01.4672
Windward/Leeward 60-40 Low757.60.7920
Windward/Leeward 60-40 Medium599.21.0013
Windward/Leeward 60-40 High539.91.1113
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low823.80.7283
5-Band Low / Medium704.20.8520
5-Band Medium577.51.0390
5-Band Medium / High522.21.1489
5-Band High497.31.2064
ORC Ref  04560002QCKIssued on 17/07/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

CHEWBACCA

USA 42250

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassNM 50 IORMeasurement02/06/1992HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA15.128Max. Beam4.542Draft2.749Displacement10,313Wetted area38.44IMS L11.958LSM011.324Acc. length14.761Sink (kg/mm) 28.95
VCGD-0.243VCGM-0.217RM Rated (kg·m) 346.2Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.522PBW0.153PIPA0.0060
PSD0.031PHD0.058PHL0.153
PSA24.0°ESL1.015
ST10.031ST20.110ST30.122
ST40.052ST50.327
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays2Spreaders4Rotating mastNo
P18.145IG20.349ISP20.465MDT10.129MDL10.232MDT20.122MDL20.199TL3.378MW0.189GO0.232
E6.042J5.816BAS2.040FSD0.021SFJ0.241SPL5.864WPLTPS0.000BD0.266MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date02/06/2003MeasurerComment
SFFP1.128FFMFF1.407LCFcl7.901SG1.0000
SAFP13.335FAMFA1.125LCFsh8.221HBI1.240
W133.4W265.4W397.6W4129.9
PD136.5PD272.0PD3106.0PD4142.0
WD14.613PLM1506.00GSA20.0RSA5352.0RM352.2
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04560002QCKIssued on 17/07/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

CHEWBACCA

USA 42250

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentOUS1252170.161.332.293.925.0865.5211/02/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC8.690.00NoNo 94.26* Copied from legacy *
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC20.2420.2420.2410.4610.46176.43* Copied from legacy *
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentOE 121-4566-0221.2519.1220.1910.0910.3597%170.6009/02/20212004 A3
ORC Ref  04560002QCKIssued on 17/07/2023Valid until 19/02/2024
VPP ver: 2023 1.03 | © ORC | www.orc.org