Club
Certificate
2023

Boat

SKYBIRD

GBR-4189_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.9°41.4°40.5°40.0°39.4°39.0°39.0°
Beat VMG3.093.734.174.424.554.624.66
52°4.705.556.076.356.496.576.63
60°4.945.786.256.516.666.756.84
75°5.095.936.396.666.857.007.18
90°5.005.886.416.746.957.117.41
110°4.885.926.516.877.157.417.78
120°4.715.776.436.817.117.397.93
135°4.205.246.086.576.917.217.81
150°3.564.595.476.176.606.927.48
Run VMG3.093.984.755.456.046.497.09
Gybe Angles146.9°151.1°153.2°159.5°173.0°179.0°179.0°

APH: 630.0

CDL: 7.423

GPH: 708.5

CertNo: 418901

BOAT
ClassSIGMA 33DesignerD.THOMASBuilderMARINE PROJECTSAge date01/1986Series date01/1982Offset fileK14780.BOFData fileGBR4189_C
HULL
Length Overall9.860 mMaximum Beam3.214 mDraft1.816 mDisplacement4,600 kgDLR8.9756IMS DivisionCruiser/RacerDynamic Allowance0.280%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeSolid 3 bladesDiameter0.390m
CREW
Maximum weight320 kgMinimum weight235 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail27.2427.77Headsail Luffed32.2532.25Headsail FlyingSymmetric60.3860.38Asymmetric
STORM SAIL AREAS (m²)
Trysail7.98Storm Jib6.48Heavy Weather Jib17.50
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  03510002BB7Issued on 23/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SKYBIRD

GBR-4189_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1165.6964.6863.9814.5792.0779.4772.8
52°765.6649.0592.9567.3554.7548.2542.7
60°728.7623.2575.8553.0540.2533.1526.0
75°706.8607.0563.3540.6525.5514.5501.7
90°720.0612.0561.4534.3518.1506.5485.9
110°737.0608.6552.7524.3503.3486.1462.5
120°763.8624.4560.0528.8506.6487.3454.2
135°857.5687.3592.1547.6521.1499.5460.9
150°1010.5784.7658.2583.4545.1520.5481.4
Run VMG1166.8905.4757.7660.6595.8554.6508.1
Selected Courses
Windward / Leeward1166.2935.0810.8737.5693.9667.0640.5
All purpose898.0734.7651.3606.1580.3563.3541.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward772.70.7765
All purpose630.00.9525
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6826
Downwind "popa"0.8157
70% up, 30% down "Ilhabela"0.7177
30% up, 70% down "Ilhabela-inverso"0.7706
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Predominantly Upwind679.70.8827
Predominantly Downwind642.10.9345
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low816.30.7350
Triple Number All Purpose Medium625.50.9593
Triple Number All Purpose High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Predominantly Upwind679.70.8827
Predominantly Downwind642.10.9345
Predominantly Upwind Low901.50.6656
Predominantly Upwind Medium700.00.8572
Predominantly Upwind High651.30.9213
Predominantly Downwind Low900.90.6660
Predominantly Downwind Medium635.50.9441
Predominantly Downwind High529.81.1326
Chicago-Mac Upwind0.8664
Chicago-Mac All Purpose0.8891
Chicago-Mac Downwind0.9173
Bayview-Mac Cove Island0.8262
Bayview-Mac Shore0.8354
Victoria-Maui0.9828
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance685.7
Triple Number Coastal/Long Distance Low816.3
Triple Number Coastal/Long Distance Medium625.5
Triple Number Coastal/Long Distance High559.4
Triple Number Windward/Leeward Low1050.6
Triple Number Windward/Leeward Medium767.5
Triple Number Windward/Leeward High663.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7350
Triple Number Coastal/Long Distance Medium0.9593
Triple Number Coastal/Long Distance High1.0725
Triple Number Windward/Leeward Low0.5711
Triple Number Windward/Leeward Medium0.7818
Triple Number Windward/Leeward High0.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low816.3
Triple Number Coastal/Long Distance Medium625.5
Triple Number Coastal/Long Distance High559.4
Triple Number Windward/Leeward Low1050.6
Triple Number Windward/Leeward Medium767.5
Triple Number Windward/Leeward High663.8
Predominantly Upwind679.7
Predominantly Downwind642.1
Predominantly Reaching615.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7350
Triple Number Coastal/Long Distance Medium0.9593
Triple Number Coastal/Long Distance High1.0725
Triple Number Windward/Leeward Low0.5711
Triple Number Windward/Leeward Medium0.7818
Triple Number Windward/Leeward High0.9039
Coastal/Long Distance0.8750
Predominantly Upwind0.8827
Predominantly Downwind0.9345
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7350
Tretall Distanseseilas Mellomvind0.9593
Tretall Distanseseilas Mye vind1.0725
Tretall Pølsebane Lite vind0.5711
Tretall Pølsebane Mellomvind0.7818
Tretall Pølsebane Mye vind0.9039
Distanseseilas ett tall (OSN 8-16kn)0.8750
Distanseseilas ett tall (APH 6-20kn)0.9525
Enkeltall Motvind0.8827
Enkeltall Medvind0.9345
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Coastal/Long Distance685.70.8750
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind679.70.8827
Predominantly Downwind642.10.9345
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore648.40.9253
Cape Doctor Coastal548.21.0945
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7350
Triple Number Coastal/Long Distance Medium0.9593
Triple Number Coastal/Long Distance High1.0725
Triple Number Windward/Leeward Low0.5711
Triple Number Windward/Leeward Medium0.7818
Triple Number Windward/Leeward High0.9039
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7350
Triple Number Coastal/Long Distance Medium0.9593
Triple Number Coastal/Long Distance High1.0725
Triple Number Windward/Leeward Low0.5711
Triple Number Windward/Leeward Medium0.7818
Triple Number Windward/Leeward High0.9039
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Predominantly Upwind679.70.8827
Predominantly Downwind642.10.9345
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance685.70.8750
Triple Number Coastal/Long Distance Low816.30.7350
Triple Number Coastal/Long Distance Medium625.50.9593
Triple Number Coastal/Long Distance High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1166.3880.2732.2646.6602.2569.5518.5
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low816.30.7350
Triple Number All Purpose Medium625.50.9593
Triple Number All Purpose High559.41.0725
Triple Number Windward/Leeward Low1050.60.5711
Triple Number Windward/Leeward Medium767.50.7818
Triple Number Windward/Leeward High663.80.9039
Predominantly Upwind679.70.8827
Predominantly Downwind642.10.9345
Predominantly Upwind Low901.50.6656
Predominantly Upwind Medium700.00.8572
Predominantly Upwind High651.30.9213
Predominantly Downwind Low900.90.6660
Predominantly Downwind Medium635.50.9441
Predominantly Downwind High529.81.1326
Chicago-Mac Upwind0.8664
Chicago-Mac All Purpose0.8891
Chicago-Mac Downwind0.9173
Bayview-Mac Cove Island0.8262
Bayview-Mac Shore0.8354
Harvest Moon Regatta548.31.0943
Victoria-Maui0.9828
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy654.60.9166
San Francisco Bay Medium762.00.7874
Predominantly Reaching0.9998
Predominantly Reaching Low0.8075
Predominantly Reaching Medium1.0096
Predominantly Reaching High1.1409
Windward/Leeward 60-40 Low1053.50.5695
Windward/Leeward 60-40 Medium791.50.7581
Windward/Leeward 60-40 High703.40.8530
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1148.40.5225
5-Band Low / Medium958.20.6262
5-Band Medium753.00.7968
5-Band Medium / High673.00.8915
5-Band High645.10.9301
ORC Ref  03510002BB7Issued on 23/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SKYBIRD

GBR-4189_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSIGMA 33MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.860Max. Beam3.214Draft1.816Displacement4,600Wetted area20.00IMS L8.123LSM08.002Acc. length9.860Sink (kg/mm) 13.78
VCGD-0.246VCGM-0.258RM Rated (kg·m) 88.8Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeSolid 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.390PBW0.100PIPA0.0203
PSD0.025PHD0.062PHL0.100
PSA22.0°ESL0.579
ST10.021ST20.085ST30.085
ST40.061ST50.155
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P11.582IG11.384ISP11.384MDT10.112MDL10.146MDT20.112MDL20.146TLMW0.156GO0.156
E3.935J3.581BAS1.470FSD0.028SFJ0.260SPL3.660WPLTPSBD0.133MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered90.0Flotation Date01/01/2010MeasurerKARRASComment
SFFP0.623FFMFF1.063LCFcl5.364SG1.0270
SAFP9.043FAMFA0.941LCFsh5.595HBI0.986
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG1FUEL INOX7007.102WATER GRP10004.603WATER GRP10004.60Total deductible
OTHER ITEMSIdKindDescriptionWeightLCGVCG1Battery1 x 88 Ah3.802Battery1 x 55 Ah3.801EngineYANMAR 20 HP1AnchorANCHOR108.301ChainCHAIN+ROPE308.301Tools44.001Safety Equipment103.61Total deductible547.11
ORC Ref  03510002BB7Issued on 23/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
2023

Boat

SKYBIRD

GBR-4189_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentORC0.160.001.422.500.0027.24* Copied from legacy *
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC5.310.00NoNo 32.25* Copied from legacy *
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC11.2011.2011.206.440.0060.38* Copied from legacy *
ORC Ref  03510002BB7Issued on 23/01/2023Valid until 31/12/2023
VPP ver: 2023 1.00 | © ORC | www.orc.org