Club
Certificate
2023

Boat

REDHEAD

USA 29

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 Angles43.0°41.2°39.6°38.8°38.2°38.2°38.7°
Beat VMG3.414.114.584.834.934.995.01
52°5.186.076.586.836.947.017.05
60°5.446.286.746.997.127.197.25
75°5.606.426.867.127.317.447.57
90°5.486.366.907.167.377.557.83
110°5.466.517.057.407.677.888.17
120°5.306.397.007.387.707.998.54
135°4.775.916.717.167.517.848.52
150°4.065.136.026.606.957.237.72
Run VMG3.524.445.215.726.036.557.22
Gybe Angles145.1°147.3°147.5°148.7°151.1°173.0°177.2°

APH: 582.7

CDL: 8.498

GPH: 650.6

CertNo: US2937

BOAT
ClassC&C 37DesignerCuthbertsonBuilderC&CAge date01/1982Series date05/1981Offset fileC&C37.offData fileUSA 29-37
HULL
Length Overall11.296 mMaximum Beam3.534 mDraft2.041 mDisplacement6,478 kgDLR9.8070IMS DivisionPerformanceDynamic Allowance0.210%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 2 bladesDiameter0.430m
CREW
Maximum weight565 kgMinimum weight424 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail32.4232.89Headsail Luffed48.5948.59Headsail FlyingSymmetricAsymmetric107.81107.81 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail9.52Storm Jib12.35Heavy Weather Jib33.33
SAIL LIMITS
Headsails1  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  03330002P1NIssued on 23/06/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

REDHEAD

USA 29

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 VMG1054.3875.5785.8746.0729.8721.7719.0
52°694.6593.1547.1526.9518.4513.9510.6
60°662.2572.9533.9515.3505.8501.0496.8
75°643.3560.7524.7505.3492.6484.1475.6
90°656.7565.8521.7502.7488.7476.7459.7
110°658.9553.0510.4486.8469.5456.6440.5
120°679.3563.5514.6488.1467.7450.3421.7
135°754.3608.9536.7502.6479.2459.2422.5
150°886.2701.8598.1545.5517.6498.1466.5
Run VMG1023.3810.4690.7629.9597.3549.8498.8
Selected Courses
Windward / Leeward1038.8842.9738.2687.9663.5635.8608.9
All purpose803.9665.6596.5563.4545.3529.7511.4
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward717.00.8368
All purpose582.71.0297
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7457
Downwind "popa"0.8750
70% up, 30% down "Ilhabela"0.7803
30% up, 70% down "Ilhabela-inverso"0.8317
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Predominantly Upwind626.00.9584
Predominantly Downwind593.11.0117
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low734.80.8166
Triple Number All Purpose Medium578.41.0373
Triple Number All Purpose High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Predominantly Upwind626.00.9584
Predominantly Downwind593.11.0117
Predominantly Upwind Low814.20.7369
Predominantly Upwind Medium644.60.9308
Predominantly Upwind High607.60.9876
Predominantly Downwind Low803.30.7469
Predominantly Downwind Medium591.11.0150
Predominantly Downwind High507.91.1814
Chicago-Mac Upwind0.9424
Chicago-Mac All Purpose0.9665
Chicago-Mac Downwind0.9960
Bayview-Mac Cove Island0.9040
Bayview-Mac Shore0.9126
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching554.81.0815
Predominantly Reaching Low669.40.8963
Predominantly Reaching Medium548.31.0944
Predominantly Reaching High491.81.2199
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1023.70.5861
5-Band Low / Medium863.60.6948
5-Band Medium700.80.8561
5-Band Medium / High640.50.9368
5-Band High613.50.9779
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance633.0
Triple Number Coastal/Long Distance Low734.8
Triple Number Coastal/Long Distance Medium578.4
Triple Number Coastal/Long Distance High526.7
Triple Number Windward/Leeward Low940.9
Triple Number Windward/Leeward Medium711.5
Triple Number Windward/Leeward High632.6
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8166
Triple Number Coastal/Long Distance Medium1.0373
Triple Number Coastal/Long Distance High1.1391
Triple Number Windward/Leeward Low0.6377
Triple Number Windward/Leeward Medium0.8433
Triple Number Windward/Leeward High0.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low734.8
Triple Number Coastal/Long Distance Medium578.4
Triple Number Coastal/Long Distance High526.7
Triple Number Windward/Leeward Low940.9
Triple Number Windward/Leeward Medium711.5
Triple Number Windward/Leeward High632.6
Predominantly Upwind626.0
Predominantly Downwind593.1
Predominantly Reaching568.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8166
Triple Number Coastal/Long Distance Medium1.0373
Triple Number Coastal/Long Distance High1.1391
Triple Number Windward/Leeward Low0.6377
Triple Number Windward/Leeward Medium0.8433
Triple Number Windward/Leeward High0.9484
Coastal/Long Distance0.9478
Predominantly Upwind0.9584
Predominantly Downwind1.0117
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8166
Tretall Distanseseilas Mellomvind1.0373
Tretall Distanseseilas Mye vind1.1391
Tretall Pølsebane Lite vind0.6377
Tretall Pølsebane Mellomvind0.8433
Tretall Pølsebane Mye vind0.9484
Distanseseilas ett tall (OSN 8-16kn)0.9478
Distanseseilas ett tall (APH 6-20kn)1.0297
Enkeltall Motvind0.9584
Enkeltall Medvind1.0117
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Coastal/Long Distance633.00.9478
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind626.00.9584
Predominantly Downwind593.11.0117
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore617.00.9725
Cape Doctor Coastal516.91.1608
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8166
Triple Number Coastal/Long Distance Medium1.0373
Triple Number Coastal/Long Distance High1.1391
Triple Number Windward/Leeward Low0.6377
Triple Number Windward/Leeward Medium0.8433
Triple Number Windward/Leeward High0.9484
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8166
Triple Number Coastal/Long Distance Medium1.0373
Triple Number Coastal/Long Distance High1.1391
Triple Number Windward/Leeward Low0.6377
Triple Number Windward/Leeward Medium0.8433
Triple Number Windward/Leeward High0.9484
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Predominantly Upwind626.00.9584
Predominantly Downwind593.11.0117
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance633.00.9478
Triple Number Coastal/Long Distance Low734.80.8166
Triple Number Coastal/Long Distance Medium578.41.0373
Triple Number Coastal/Long Distance High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1037.3794.6668.7600.9566.2535.8490.0
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low734.80.8166
Triple Number All Purpose Medium578.41.0373
Triple Number All Purpose High526.71.1391
Triple Number Windward/Leeward Low940.90.6377
Triple Number Windward/Leeward Medium711.50.8433
Triple Number Windward/Leeward High632.60.9484
Predominantly Upwind626.00.9584
Predominantly Downwind593.11.0117
Predominantly Upwind Low814.20.7369
Predominantly Upwind Medium644.60.9308
Predominantly Upwind High607.60.9876
Predominantly Downwind Low803.30.7469
Predominantly Downwind Medium591.11.0150
Predominantly Downwind High507.91.1814
Chicago-Mac Upwind0.9424
Chicago-Mac All Purpose0.9665
Chicago-Mac Downwind0.9960
Bayview-Mac Cove Island0.9040
Bayview-Mac Shore0.9126
Harvest Moon Regatta513.31.1689
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy616.20.9737
San Francisco Bay Medium699.10.8582
Predominantly Reaching554.81.0815
Predominantly Reaching Low669.40.8963
Predominantly Reaching Medium548.31.0944
Predominantly Reaching High491.81.2199
Windward/Leeward 60-40 Low945.70.6345
Windward/Leeward 60-40 Medium730.10.8218
Windward/Leeward 60-40 High663.30.9046
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1023.70.5861
5-Band Low / Medium863.60.6948
5-Band Medium700.80.8561
5-Band Medium / High640.50.9368
5-Band High613.50.9779
ORC Ref  03330002P1NIssued on 23/06/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

REDHEAD

USA 29

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassC&C 37MeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA11.296Max. Beam3.534Draft2.041Displacement6,478Wetted area26.68IMS L8.981LSM08.708Acc. length11.296Sink (kg/mm) 18.55
VCGD-0.001VCGM-0.022RM Rated (kg·m) 145.0Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFeathering 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.430PBW0.110PIPA0.0103
PSD0.025PHD0.046PHL0.177
PSA29.5°ESL0.500
ST10.540ST20.046ST30.089
ST40.110ST50.310
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P13.600IG15.621ISP15.570MDT10.138MDL10.226MDT20.138MDL20.226TL0.000MW0.223GO0.250
E4.000J4.720BAS1.424FSD0.022SFJ0.000SPL0.000WPLTPS4.870BD0.156MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2021MeasurerComment
SFFP0.555FFMFF1.463LCFcl6.370SG
SAFP10.448FAMFA0.999LCFsh6.615HBI1.171
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03330002P1NIssued on 23/06/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

REDHEAD

USA 29

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMN10.120.861.542.573.3532.4206/07/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentRF Genoa0.050.761.483.074.766.5215.38NoNo 48.5907/06/2023
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA216.4014.7015.558.308.4099%107.8107/06/2023
ORC Ref  03330002P1NIssued on 23/06/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org