Club
Certificate
2023

Boat

Gwhiz

USA 24

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 Angles42.7°40.6°39.3°38.4°38.2°38.7°39.4°
Beat VMG3.624.334.744.904.995.035.01
52°5.476.346.786.967.057.107.13
60°5.736.546.957.157.247.307.36
75°5.906.677.077.337.517.627.75
90°6.046.867.287.547.717.868.15
110°5.886.847.347.718.048.358.88
120°5.726.777.327.768.168.499.12
135°5.126.347.077.547.998.479.67
150°4.355.476.417.017.347.658.33
Run VMG3.774.745.556.076.386.887.58
Gybe Angles144.4°147.8°148.7°150.3°165.8°174.5°175.7°

APH: 558.9

CDL: 8.649

GPH: 621.0

CertNo: US7095

BOAT
ClassFIRST 10RDesignerFARRBuilderBENETEAUAge date01/2007Series date10/2005Offset fileFIRST347-DEEPRUDDER.offData fileUSA24
HULL
Length Overall10.364 mMaximum Beam3.372 mDraft1.993 mDisplacement4,500 kgDLR6.6260IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFeathering 2 bladesDiameter0.410m
CREW
Maximum weight455 kgMinimum weight341 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail34.1334.82Headsail Luffed37.7737.77Headsail FlyingSymmetricAsymmetric111.98111.98 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail10.08Storm Jib8.72Heavy Weather Jib23.54
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  04560002PD4Issued on 29/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Gwhiz

USA 24

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 VMG995.4831.6760.1734.0722.1716.1718.8
52°658.3567.5531.1517.4510.7507.2505.0
60°628.2550.4518.2503.8497.0492.9489.4
75°609.7540.0508.9491.0479.3472.3464.7
90°596.4524.7494.6477.3466.8458.1441.9
110°612.1526.6490.3467.2448.0431.0405.6
120°629.1532.1491.8464.0441.4424.1394.7
135°703.3568.0509.3477.6450.3425.2372.1
150°827.0657.6561.6513.7490.1470.4432.3
Run VMG955.0759.4648.4592.9564.7523.5475.2
Selected Courses
Windward / Leeward975.2795.5704.3663.4643.4619.8597.0
All purpose752.5629.1571.1543.3526.6512.4492.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward688.70.8712
All purpose558.91.0735
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7667
Downwind "popa"0.9294
70% up, 30% down "Ilhabela"0.8092
30% up, 70% down "Ilhabela-inverso"0.8738
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Predominantly Upwind603.60.9940
Predominantly Downwind561.81.0680
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low690.80.8686
Triple Number All Purpose Medium555.61.0800
Triple Number All Purpose High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Predominantly Upwind603.60.9940
Predominantly Downwind561.81.0680
Predominantly Upwind Low767.80.7815
Predominantly Upwind Medium626.40.9579
Predominantly Upwind High598.91.0019
Predominantly Downwind Low751.80.7981
Predominantly Downwind Medium559.11.0732
Predominantly Downwind High479.51.2512
Chicago-Mac Upwind0.9781
Chicago-Mac All Purpose1.0122
Chicago-Mac Downwind1.0515
Bayview-Mac Cove Island0.9520
Bayview-Mac Shore0.9574
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching527.71.1370
Predominantly Reaching Low624.60.9606
Predominantly Reaching Medium522.01.1495
Predominantly Reaching High469.11.2790
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low961.30.6241
5-Band Low / Medium816.10.7352
5-Band Medium674.20.8899
5-Band Medium / High623.70.9620
5-Band High600.90.9984
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance606.5
Triple Number Coastal/Long Distance Low690.8
Triple Number Coastal/Long Distance Medium555.6
Triple Number Coastal/Long Distance High508.5
Triple Number Windward/Leeward Low885.3
Triple Number Windward/Leeward Medium683.1
Triple Number Windward/Leeward High617.2
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8686
Triple Number Coastal/Long Distance Medium1.0800
Triple Number Coastal/Long Distance High1.1799
Triple Number Windward/Leeward Low0.6777
Triple Number Windward/Leeward Medium0.8784
Triple Number Windward/Leeward High0.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low690.8
Triple Number Coastal/Long Distance Medium555.6
Triple Number Coastal/Long Distance High508.5
Triple Number Windward/Leeward Low885.3
Triple Number Windward/Leeward Medium683.1
Triple Number Windward/Leeward High617.2
Predominantly Upwind603.6
Predominantly Downwind561.8
Predominantly Reaching538.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8686
Triple Number Coastal/Long Distance Medium1.0800
Triple Number Coastal/Long Distance High1.1799
Triple Number Windward/Leeward Low0.6777
Triple Number Windward/Leeward Medium0.8784
Triple Number Windward/Leeward High0.9722
Coastal/Long Distance0.9893
Predominantly Upwind0.9940
Predominantly Downwind1.0680
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8686
Tretall Distanseseilas Mellomvind1.0800
Tretall Distanseseilas Mye vind1.1799
Tretall Pølsebane Lite vind0.6777
Tretall Pølsebane Mellomvind0.8784
Tretall Pølsebane Mye vind0.9722
Distanseseilas ett tall (OSN 8-16kn)0.9893
Distanseseilas ett tall (APH 6-20kn)1.0735
Enkeltall Motvind0.9940
Enkeltall Medvind1.0680
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Coastal/Long Distance606.50.9893
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind603.60.9940
Predominantly Downwind561.81.0680
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore603.80.9937
Cape Doctor Coastal498.61.2034
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8686
Triple Number Coastal/Long Distance Medium1.0800
Triple Number Coastal/Long Distance High1.1799
Triple Number Windward/Leeward Low0.6777
Triple Number Windward/Leeward Medium0.8784
Triple Number Windward/Leeward High0.9722
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8686
Triple Number Coastal/Long Distance Medium1.0800
Triple Number Coastal/Long Distance High1.1799
Triple Number Windward/Leeward Low0.6777
Triple Number Windward/Leeward Medium0.8784
Triple Number Windward/Leeward High0.9722
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Predominantly Upwind603.60.9940
Predominantly Downwind561.81.0680
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance606.50.9893
Triple Number Coastal/Long Distance Low690.80.8686
Triple Number Coastal/Long Distance Medium555.61.0800
Triple Number Coastal/Long Distance High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance973.1749.6638.6579.1547.2518.2472.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low690.80.8686
Triple Number All Purpose Medium555.61.0800
Triple Number All Purpose High508.51.1799
Triple Number Windward/Leeward Low885.30.6777
Triple Number Windward/Leeward Medium683.10.8784
Triple Number Windward/Leeward High617.20.9722
Predominantly Upwind603.60.9940
Predominantly Downwind561.81.0680
Predominantly Upwind Low767.80.7815
Predominantly Upwind Medium626.40.9579
Predominantly Upwind High598.91.0019
Predominantly Downwind Low751.80.7981
Predominantly Downwind Medium559.11.0732
Predominantly Downwind High479.51.2512
Chicago-Mac Upwind0.9781
Chicago-Mac All Purpose1.0122
Chicago-Mac Downwind1.0515
Bayview-Mac Cove Island0.9520
Bayview-Mac Shore0.9574
Harvest Moon Regatta488.71.2277
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy599.11.0015
San Francisco Bay Medium670.30.8951
Predominantly Reaching527.71.1370
Predominantly Reaching Low624.60.9606
Predominantly Reaching Medium522.01.1495
Predominantly Reaching High469.11.2790
Windward/Leeward 60-40 Low890.90.6734
Windward/Leeward 60-40 Medium705.10.8510
Windward/Leeward 60-40 High651.70.9207
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low961.30.6241
5-Band Low / Medium816.10.7352
5-Band Medium674.20.8899
5-Band Medium / High623.70.9620
5-Band High600.90.9984
ORC Ref  04560002PD4Issued on 29/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Gwhiz

USA 24

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFIRST 10RMeasurementHINPlan reviewHull constructionCoredCarbon RudderYesLight stanchionsNoTrim tabNo
LOA10.364Max. Beam3.372Draft1.993Displacement4,500Wetted area22.24IMS L9.021LSM08.789Acc. length10.364Sink (kg/mm) 16.30
VCGD-0.130VCGM-0.107RM Rated (kg·m) 102.6Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFeathering 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.410PBW0.000PIPA0.0036
EDL1.810ST10.121ST20.180
ST30.180ST40.111ST50.180
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P12.802IG13.168ISP14.143MDT10.100MDL10.180MDT20.096MDL20.150TL1.230MW0.150GO0.160
E4.496J3.689BAS1.540FSD0.034SFJ0.000SPLWPLTPS5.006BD0.131MWT109.77MCG4.780
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date17/02/2022MeasurerComment
SFFP0.172FFMFF1.304LCFcl5.370SG1.0250
SAFP9.530FAMFA1.052LCFsh5.613HBI1.168
W116.1W232.0W348.0W4187.8
PD163.0PD2125.0PD3188.0PD4251.0
WD10.531PLM2140.00GSA78.5RSA31500.0RM441.3
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG00.000.00Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCGaAnchor00.00Total deductible0
ORC Ref  04560002PD4Issued on 29/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

Gwhiz

USA 24

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain 20220.140.951.692.893.7534.1323/05/2022Sail ID: 11455
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentLM1-20220.050.721.412.834.275.7213.26NoNo 37.7720/05/2022Sail ID: 11445L
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA216.0813.8014.949.078.69104%111.9814/06/2016Sail ID: 10681Code 0-7514.5513.1113.835.947.8975%72.9508/06/2022Sail ID: 11446
ORC Ref  04560002PD4Issued on 29/06/2023Valid until 19/02/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org