Club Certificate2025
ROCKABILL VIIRL 10800
ORC
Central Rating Office
Issuing certificates for
Ireland
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles42.9°42.9°40.8°38.9°37.6°36.9°36.6°36.5°37.1°
Beat VMG2.593.584.384.985.335.495.585.665.63
52°4.015.426.437.077.427.617.707.817.83
60°4.255.686.667.237.587.797.928.078.11
75°4.405.846.797.347.707.998.228.508.65
90°4.255.786.887.467.728.018.318.839.19
110°4.315.897.047.668.118.468.719.169.52
120°4.195.746.897.578.088.569.029.7310.44
135°3.685.166.387.237.788.298.8110.1412.71
150°3.064.385.576.577.307.808.279.3211.20
Run VMG2.653.804.825.716.447.047.518.379.70
Gybe Angles145.1°145.1°149.2°152.5°158.3°165.3°169.6°168.7°142.3°
APH ToD:531.6CDL: 9.812APH ToT: 1.1287CertNo:
BOAT
ClassJPK 10.80DesignerJPK DesignBuilderJPK CompositesAge date01/2016Series date01/2014Offset fileJPK-1080.offData fileIRL10800
HULL
Length Overall10.877 mMaximum Beam3.660 mDraft2.166 mDisplacement4,803 kgDLR5.7220IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.357%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.375m
CREW
Maximum weight680 kg(declared)Minimum weight550 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail37.5538.25Headsail Luffed32.6032.60Headsail FlyingSymmetric112.29112.29Asymmetric
STORM SAIL AREAS (m²)
Trysail10.92Storm Jib10.20Heavy Weather Jib27.54
SAIL LIMITS
Headsails6Spinnakers5
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  03880003TN7Issued on 06/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
ROCKABILL VIIRL 10800
ORC
Central Rating Office
Issuing certificates for
Ireland
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1390.41004.6821.9723.6675.8655.9644.8635.8639.2
52°896.8663.9559.6509.2485.0473.4467.5460.8459.6
60°846.3633.3540.8497.7475.0461.9454.5446.3443.7
75°819.1616.9530.5490.4467.3450.3437.9423.7416.4
90°847.9622.9522.9482.6466.4449.7433.0407.6391.8
110°834.4610.8511.3469.8444.0425.4413.4392.8378.1
120°859.8627.2522.3475.3445.7420.8399.1370.0344.7
135°977.6697.3564.7498.3462.9434.3408.4355.1283.4
150°1176.7821.1646.5548.0493.4461.6435.1386.2321.3
Run VMG1359.1948.1746.5631.0558.6511.3479.1430.1371.1
Selected Courses
Windward / Leeward1374.0976.3784.2677.3617.2583.6561.9533.0505.1
All purpose1047.4756.5620.3550.6512.9489.9473.3448.4424.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward647.40.9268
All purpose531.61.1287
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8136
Downwind "popa"0.9757
70% up, 30% down "Ilhabela"0.8563
30% up, 70% down "Ilhabela-inverso"0.9206
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Predominantly Upwind574.71.0440
Predominantly Downwind540.51.1100
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low688.40.8716
Triple Number AP Medium528.71.1348
Triple Number AP High468.11.2818
Triple Number Windward/Leeward Low919.00.6529
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Single Number Predominant Upwind597.71.0039
Single Number Predominant Reaching532.01.1277
Single Number Predominant Downwind562.71.0662
Predominant Upwind - Low833.30.7200
Predominant Upwind - Low/Med633.20.9475
Predominant Upwind - Medium555.41.0803
Predominant Upwind - Med/High515.41.1642
Predominant Upwind - High495.51.2109
Predominant Downwind Low828.90.7238
Predominant Downwind Low/Med612.80.9791
Predominant Downwind Medium521.51.1504
Predominant Downwind Med/High461.91.2989
Predominant Downwind High419.91.4288
Predominant Reaching Low743.90.8065
Predominant Reaching Low/Med566.91.0584
Predominant Reaching Medium498.31.2040
Predominant Reaching Med/High454.21.3209
Predominant Reaching High422.51.4202
SA/DSPL Upwind24.52SA/DSPL Downwind52.36
Scoring OptionTODTOT
5-Band Windward/Leeward Low1027.90.5837
5-Band Windward/Leeward Low/Med750.20.7998
5-Band Windward/Leeward Medium630.90.9510
5-Band Windward/Leeward Med/High565.31.0613
5-Band Windward/Leeward High533.21.1253
Windward/Leeward 60-40 Low1033.40.5806
Windward/Leeward 60-40 Low/Med758.60.7909
Windward/Leeward 60-40 Medium642.70.9335
Windward/Leeward 60-40 Med/High581.81.0312
Windward/Leeward 60-40 High554.11.0828
5-Band AP Low761.70.7877
5-Band AP Low/Med600.01.0001
5-Band AP Medium521.01.1517
5-Band AP Med/High475.21.2626
5-Band AP High448.61.3375
5-Band SF Bay Tour - Low887.10.6764
5-Band SF Bay Tour - Low/Med718.20.8354
5-Band SF Bay Tour - Medium610.00.9836
5-Band SF Bay Tour - Med/High551.11.0888
5-Band SF Bay Tour - High520.41.1530
Chicago-Mac Upwind0.9721
Chicago-Mac All Purpose1.0013
Chicago-Mac Downwind1.0259
Bayview-Mac Cove Island0.7308
Bayview-Mac Shore0.7355
Harvest Moon Regatta463.71.2939
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance576.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating576.81.0401
FinRating, kevyt tuuli1010.70.9894
FinRating, kova tuuli450.21.1105
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance1.0401
Triple Number Coastal/Long Distance Low0.8716
Triple Number Coastal/Long Distance Medium1.1349
Triple Number Coastal/Long Distance High1.2818
Triple Number Windward/Leeward Low0.6816
Triple Number Windward/Leeward Medium0.9335
Triple Number Windward/Leeward High1.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
For information
General Purpose Handicap (GPH)597.8
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low688.4
Triple Number Coastal/Long Distance Medium528.7
Triple Number Coastal/Long Distance High468.1
Triple Number Windward/Leeward Low880.3
Triple Number Windward/Leeward Medium642.7
Triple Number Windward/Leeward High556.5
Predominantly Upwind574.7
Predominantly Downwind540.5
Predominantly Reaching520.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8716
Triple Number Coastal/Long Distance Medium1.1349
Triple Number Coastal/Long Distance High1.2818
Triple Number Windward/Leeward Low0.6816
Triple Number Windward/Leeward Medium0.9335
Triple Number Windward/Leeward High1.0782
Coastal/Long Distance1.0401
Predominantly Upwind1.0440
Predominantly Downwind1.1100
For information
General Purpose Handicap (GPH)597.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.1287
Distanseseilas Trippeltall svak vind0.8716
Distanseseilas Trippeltall mellomvind1.1349
Distanseseilas Trippeltall sterk vind1.2818
Pølsebane Trippeltall svak vind0.6816
Pølsebane Trippeltall mellomvind0.9335
Pølsebane Trippeltall sterk vind1.0782
Motvind Singeltall1.0440
Medvind Singeltall1.1100
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Coastal/Long Distance576.81.0401
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind574.71.0440
Predominantly Downwind540.51.1100
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore513.51.1685
Cape Doctor Coastal431.81.3895
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8716
Triple Number Coastal/Long Distance Medium1.1349
Triple Number Coastal/Long Distance High1.2818
Triple Number Windward/Leeward Low0.6816
Triple Number Windward/Leeward Medium0.9335
Triple Number Windward/Leeward High1.0782
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8716
Triple Number Coastal/Long Distance Medium1.1349
Triple Number Coastal/Long Distance High1.2818
Triple Number Windward/Leeward Low0.6816
Triple Number Windward/Leeward Medium0.9335
Triple Number Windward/Leeward High1.0782
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Predominantly Upwind574.71.0440
Predominantly Downwind540.51.1100
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance576.81.0401
Triple Number Coastal/Long Distance Low688.40.8716
Triple Number Coastal/Long Distance Medium528.71.1349
Triple Number Coastal/Long Distance High468.11.2818
Triple Number Windward/Leeward Low880.30.6816
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1453.9973.5739.0615.1545.3507.8477.8430.8408.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low688.40.8716
Triple Number AP Medium528.71.1348
Triple Number AP High468.11.2818
Triple Number Windward/Leeward Low919.00.6529
Triple Number Windward/Leeward Medium642.70.9335
Triple Number Windward/Leeward High556.51.0782
Single Number Predominant Upwind597.71.0039
Single Number Predominant Reaching532.01.1277
Single Number Predominant Downwind562.71.0662
Predominant Upwind - Low833.30.7200
Predominant Upwind - Low/Med633.20.9475
Predominant Upwind - Medium555.41.0803
Predominant Upwind - Med/High515.41.1642
Predominant Upwind - High495.51.2109
Predominant Downwind Low828.90.7238
Predominant Downwind Low/Med612.80.9791
Predominant Downwind Medium521.51.1504
Predominant Downwind Med/High461.91.2989
Predominant Downwind High419.91.4288
Predominant Reaching Low743.90.8065
Predominant Reaching Low/Med566.91.0584
Predominant Reaching Medium498.31.2040
Predominant Reaching Med/High454.21.3209
Predominant Reaching High422.51.4202
SA/DSPL Upwind24.52SA/DSPL Downwind52.36
Scoring OptionTODTOT
5-Band Windward/Leeward Low1027.90.5837
5-Band Windward/Leeward Low/Med750.20.7998
5-Band Windward/Leeward Medium630.90.9510
5-Band Windward/Leeward Med/High565.31.0613
5-Band Windward/Leeward High533.21.1253
Windward/Leeward 60-40 Low1033.40.5806
Windward/Leeward 60-40 Low/Med758.60.7909
Windward/Leeward 60-40 Medium642.70.9335
Windward/Leeward 60-40 Med/High581.81.0312
Windward/Leeward 60-40 High554.11.0828
5-Band AP Low761.70.7877
5-Band AP Low/Med600.01.0001
5-Band AP Medium521.01.1517
5-Band AP Med/High475.21.2626
5-Band AP High448.61.3375
5-Band SF Bay Tour - Low887.10.6764
5-Band SF Bay Tour - Low/Med718.20.8354
5-Band SF Bay Tour - Medium610.00.9836
5-Band SF Bay Tour - Med/High551.11.0888
5-Band SF Bay Tour - High520.41.1530
Chicago-Mac Upwind0.9721
Chicago-Mac All Purpose1.0013
Chicago-Mac Downwind1.0259
Bayview-Mac Cove Island0.7308
Bayview-Mac Shore0.7355
Harvest Moon Regatta463.71.2939
ORC Ref  03880003TN7Issued on 06/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
ROCKABILL VIIRL 10800
ORC
Central Rating Office
Issuing certificates for
Ireland
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJPK 10.80Measurement26/05/2022HINPlan reviewHull constructionLightCarbon rudderNoLight stanchionsNoTrim tabNo
LOA10.877Max. Beam3.660Draft2.166Displacement4,803Wetted area24.04IMS L9.860LSM09.432Acc. length10.877Sink (kg/mm) 17.91
VCGD-0.397VCGM-0.341RM Rated (kg·m) 138.2Limit of positive stability(°) N/AStability IndexN/ADefault crew weight633Declared crew weight680
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.375PBW0.096PIPA0.0038
EDL1.940ST10.065ST20.180
ST30.180ST40.112ST50.300
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P13.770IG14.220ISP15.840MDT10.110MDL10.180MDT20.100MDL20.143TL1.200MW0.179GO0.198
E4.530J4.350BAS1.620FSD0.033SFJSPL4.860WPLTPS5.080BD0.170MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered138.2Flotation Date18/03/2024
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03880003TN7Issued on 06/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org
Club Certificate2025
ROCKABILL VIIRL 10800
ORC
Central Rating Office
Issuing certificates for
Ireland
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment00.991.722.9537.55
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.711.332.374.3314.29NoNo 32.60
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment015.5715.5715.578.788.15112.29
ORC Ref  03880003TN7Issued on 06/06/2025Valid until 31/12/2025
VPP ver: 2025 1.01 | © ORC | www.orc.org