Club
Certificate
2023

Boat

BLOOM COUNTY

USA 18151

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 Angles42.4°40.5°38.4°36.9°36.3°35.8°36.0°
Beat VMG3.414.194.765.105.235.315.36
52°5.166.176.727.067.257.367.48
60°5.406.376.887.247.517.657.81
75°5.536.497.007.417.808.118.43
90°5.556.627.197.557.848.289.07
110°5.616.747.418.028.589.029.80
120°5.456.617.317.998.719.4510.74
135°4.886.126.937.568.259.0611.33
150°4.075.176.166.937.498.089.55
Run VMG3.534.475.346.086.657.158.27
Gybe Angles138.1°146.9°147.8°155.9°168.2°173.0°151.4°

APH: 553.0

CDL: 8.816

GPH: 624.2

CertNo: US1815

BOAT
ClassMancebo 31DesignerManceboBuilderAge date01/1984Series date01/1982Offset fileMancebo31b.offData fileUSA 18151
HULL
Length Overall9.440 mMaximum Beam2.994 mDraft2.137 mDisplacement1,989 kgDLR3.2303IMS DivisionPerformanceDynamic Allowance0.190%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight547 kgMinimum weight410 kg * when appliedNon Manual PowerCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.1121.52Headsail Luffed23.3923.39Headsail FlyingSymmetric68.0368.03Asymmetric70.6470.64 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.17Storm Jib5.13Heavy Weather Jib13.83
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric may be tacked on the pole
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  03330002S06Issued on 31/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

BLOOM COUNTY

USA 18151

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 VMG1055.8858.3756.0706.3688.2678.2672.2
52°697.8583.9535.4510.1496.4488.8481.5
60°666.2565.0523.5497.3479.5470.3461.0
75°650.9555.1514.6485.7461.4444.1427.2
90°649.2543.6501.0476.9459.2434.6397.0
110°641.7534.0485.8449.1419.4399.3367.3
120°660.7544.5492.3450.5413.4381.1335.2
135°737.0588.3519.2475.9436.6397.5317.8
150°884.4696.9584.0519.6481.0445.7377.2
Run VMG1021.2804.7674.3592.0541.7503.3435.2
Selected Courses
Windward / Leeward1038.5831.5715.2649.2614.9590.7553.7
All purpose800.0652.3577.5533.6506.3484.4450.0
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward682.60.8790
All purpose553.01.0850
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7756
Downwind "popa"0.9185
70% up, 30% down "Ilhabela"0.8136
30% up, 70% down "Ilhabela-inverso"0.8704
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Predominantly Upwind599.91.0002
Predominantly Downwind563.51.0647
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low726.10.8263
Triple Number All Purpose Medium551.31.0884
Triple Number All Purpose High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Predominantly Upwind599.91.0002
Predominantly Downwind563.51.0647
Predominantly Upwind Low806.00.7444
Predominantly Upwind Medium617.90.9710
Predominantly Upwind High567.71.0570
Predominantly Downwind Low794.20.7555
Predominantly Downwind Medium562.11.0674
Predominantly Downwind High449.31.3355
Chicago-Mac Upwind0.9817
Chicago-Mac All Purpose1.0099
Chicago-Mac Downwind1.0445
Bayview-Mac Cove Island0.9320
Bayview-Mac Shore0.9427
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching526.01.1406
Predominantly Reaching Low656.00.9147
Predominantly Reaching Medium524.11.1448
Predominantly Reaching High442.51.3560
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1022.60.5868
5-Band Low / Medium850.80.7052
5-Band Medium664.80.9025
5-Band Medium / High593.51.0110
5-Band High560.11.0712
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance602.0
Triple Number Coastal/Long Distance Low726.1
Triple Number Coastal/Long Distance Medium551.3
Triple Number Coastal/Long Distance High477.0
Triple Number Windward/Leeward Low935.0
Triple Number Windward/Leeward Medium677.8
Triple Number Windward/Leeward High582.9
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8263
Triple Number Coastal/Long Distance Medium1.0884
Triple Number Coastal/Long Distance High1.2579
Triple Number Windward/Leeward Low0.6417
Triple Number Windward/Leeward Medium0.8852
Triple Number Windward/Leeward High1.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low726.1
Triple Number Coastal/Long Distance Medium551.3
Triple Number Coastal/Long Distance High477.0
Triple Number Windward/Leeward Low935.0
Triple Number Windward/Leeward Medium677.8
Triple Number Windward/Leeward High582.9
Predominantly Upwind599.9
Predominantly Downwind563.5
Predominantly Reaching539.2
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8263
Triple Number Coastal/Long Distance Medium1.0884
Triple Number Coastal/Long Distance High1.2579
Triple Number Windward/Leeward Low0.6417
Triple Number Windward/Leeward Medium0.8852
Triple Number Windward/Leeward High1.0293
Coastal/Long Distance0.9967
Predominantly Upwind1.0002
Predominantly Downwind1.0647
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8263
Tretall Distanseseilas Mellomvind1.0884
Tretall Distanseseilas Mye vind1.2579
Tretall Pølsebane Lite vind0.6417
Tretall Pølsebane Mellomvind0.8852
Tretall Pølsebane Mye vind1.0293
Distanseseilas ett tall (OSN 8-16kn)0.9967
Distanseseilas ett tall (APH 6-20kn)1.0850
Enkeltall Motvind1.0002
Enkeltall Medvind1.0647
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Coastal/Long Distance602.00.9967
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind599.91.0002
Predominantly Downwind563.51.0647
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore564.81.0623
Cape Doctor Coastal460.31.3034
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8263
Triple Number Coastal/Long Distance Medium1.0884
Triple Number Coastal/Long Distance High1.2579
Triple Number Windward/Leeward Low0.6417
Triple Number Windward/Leeward Medium0.8852
Triple Number Windward/Leeward High1.0293
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8263
Triple Number Coastal/Long Distance Medium1.0884
Triple Number Coastal/Long Distance High1.2579
Triple Number Windward/Leeward Low0.6417
Triple Number Windward/Leeward Medium0.8852
Triple Number Windward/Leeward High1.0293
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Predominantly Upwind599.91.0002
Predominantly Downwind563.51.0647
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance602.00.9967
Triple Number Coastal/Long Distance Low726.10.8263
Triple Number Coastal/Long Distance Medium551.31.0884
Triple Number Coastal/Long Distance High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1036.8782.7647.6568.5525.6488.3426.9
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low726.10.8263
Triple Number All Purpose Medium551.31.0884
Triple Number All Purpose High477.01.2579
Triple Number Windward/Leeward Low935.00.6417
Triple Number Windward/Leeward Medium677.80.8852
Triple Number Windward/Leeward High582.91.0293
Predominantly Upwind599.91.0002
Predominantly Downwind563.51.0647
Predominantly Upwind Low806.00.7444
Predominantly Upwind Medium617.90.9710
Predominantly Upwind High567.71.0570
Predominantly Downwind Low794.20.7555
Predominantly Downwind Medium562.11.0674
Predominantly Downwind High449.31.3355
Chicago-Mac Upwind0.9817
Chicago-Mac All Purpose1.0099
Chicago-Mac Downwind1.0445
Bayview-Mac Cove Island0.9320
Bayview-Mac Shore0.9427
Harvest Moon Regatta471.31.2730
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy565.01.0620
San Francisco Bay Medium669.40.8963
Predominantly Reaching526.01.1406
Predominantly Reaching Low656.00.9147
Predominantly Reaching Medium524.11.1448
Predominantly Reaching High442.51.3560
Windward/Leeward 60-40 Low939.40.6387
Windward/Leeward 60-40 Medium695.90.8621
Windward/Leeward 60-40 High615.40.9749
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1022.60.5868
5-Band Low / Medium850.80.7052
5-Band Medium664.80.9025
5-Band Medium / High593.51.0110
5-Band High560.11.0712
ORC Ref  03330002S06Issued on 31/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

BLOOM COUNTY

USA 18151

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMancebo 31Measurement17/08/2023HINPlan reviewHull constructionCoredCarbon RudderYesLight stanchionsNoTrim tabNo
LOA9.440Max. Beam2.994Draft2.137Displacement1,989Wetted area16.68IMS L8.692LSM08.507Acc. length9.440Sink (kg/mm) 12.84
VCGD-0.247VCGM-0.272RM Rated (kg·m) 60.7Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
PIPA0.0000
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2Rotating mastNo
P10.216IG10.061ISP11.478MDT10.094MDL10.143MDT20.085MDL20.089TL1.511MW0.146GO0.164
E3.447J3.087BAS1.423FSD0.032SFJ0.457SPL3.941WPLTPS3.941BD0.131MWT76.23MCG3.288
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered60.7Flotation Date17/08/2023MeasurerComment
SFFP0.457FFMFF0.997LCFcl5.485SG1.0220
SAFP8.769FAMFA0.825LCFsh5.679HBI0.913
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03330002S06Issued on 31/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org

Club
Certificate
2023

Boat

BLOOM COUNTY

USA 18151

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentSR Main0.140.731.312.242.9221.1120/08/202318151SRM2011
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG10.070.561.092.213.404.6110.34NoNo 23.3919/03/2020
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS111.4311.4311.437.147.1568.0319/03/2020181515S1
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA212.8111.3412.087.027.02100%70.6419/03/202318151A2
ORC Ref  03330002S06Issued on 31/08/2023Valid until 31/12/2023
VPP ver: 2023 1.03 | © ORC | www.orc.org