Club Certificate2026
ROCKABILL VIIRL 10800
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
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 Angles45.6°43.0°40.9°39.0°37.7°37.1°36.7°36.6°37.3°
Beat VMG2.513.564.364.955.325.485.585.665.62
52°3.925.406.417.067.427.617.707.817.83
60°4.195.666.647.237.587.807.928.078.12
75°4.385.826.787.347.708.008.228.518.66
90°4.235.786.897.467.738.018.338.889.30
110°4.245.907.057.678.118.488.749.279.71
120°4.115.746.907.588.098.599.109.9810.83
135°3.615.176.387.237.788.328.9110.5312.74
150°3.014.395.576.587.307.818.319.5311.39
Run VMG2.613.804.835.716.457.057.528.439.87
Gybe Angles140.8°145.1°149.2°152.5°158.3°165.3°169.6°165.1°145.2°
APH ToD:531.6CDL: 9.791APH ToT: 1.1287CertNo:26072
BOAT
ClassJPK 10.80DesignerJPK DesignBuilderJPK CompositesAge date01/2016Series date01/2014Offset fileJPK-1080.offData fileIRL10800
HULL
Length Overall10.877Maximum Beam3.660Draft2.166Displacement4,803DLR5.7220IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.390%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.425m
CREW
Maximum weight680(declared)Minimum weight550 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail37.5538.25Headsail Luffed32.6032.60Headsail FlyingSymmetric112.29112.29Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail10.92Storm Jib10.20Heavy Weather Jib27.54
SAIL LIMITS
Headsails6Spinnakers5
STABILITY
Righting Moment 138.2 Stability Index 131.3
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  051800048FQ Issued on 04/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ROCKABILL VIIRL 10800
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
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 VMG1435.21011.3826.6726.8677.3656.6645.5636.6640.2
52°918.7667.1561.5510.1485.2473.3467.4460.7459.5
60°859.1635.7541.9498.1475.1461.8454.3446.1443.5
75°822.7618.2531.0490.5467.3450.2437.7423.2415.5
90°850.4623.1522.8482.3466.0449.5432.3405.3386.9
110°849.2610.6511.0469.4443.7424.8411.9388.3370.7
120°875.8626.9521.9474.9445.2419.3395.4360.6332.4
135°995.9696.8564.2497.8462.5432.5404.1341.9282.5
150°1195.9820.3645.9547.5493.0461.2433.3377.9316.0
Run VMG1380.9947.2745.8630.4558.1510.8478.6427.3364.9
Selected Courses
Windward / Leeward1408.0979.3786.2678.6617.7583.7562.0531.9502.5
All purpose1069.4758.3621.3551.2513.0489.6472.4445.0421.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward648.20.9257
All purpose531.61.1287
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.8107
Downwind "popa"0.9772
70% up, 30% down "Ilhabela"0.8544
30% up, 70% down "Ilhabela-inverso"0.9205
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Predominantly Upwind575.41.0427
Predominantly Downwind540.11.1109
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP552.11.0868 Predom. Rc High418.71.4331 5B SF Bay L/M717.50.8363 TriNum AP Low689.80.8698 Predom. Dn Low834.10.7194 5B SF Bay Med610.60.9826 TriNum AP Med528.91.1343 Predom. Dn L/M612.90.9790 5B SF Bay M/H550.41.0900 TriNum AP High466.41.2864 Predom. Dn Med521.21.1513 5B SF Bay High518.31.1577 TriNum W/L Low924.50.6490 Predom. Dn M/H459.81.3048 5B AP Low766.80.7825 TriNum W/L Med643.60.9323 Predom. Dn High415.41.4443 5B AP L/M600.80.9987 TriNum W/L Hig556.21.0788 ChiMac Up Low734.60.8167 5B AP Med521.01.1516 Predom. Upwind599.51.0009 ChiMac Up Med658.60.9110 5B AP M/H474.11.2656 Predom. Reaching532.21.1274 ChiMac Up High570.71.0513 5B AP High445.71.3461 Predom. Downwind562.91.0659 ChiMac Off Low715.10.8390 5B W/L Low1038.20.5779 Predom. Up Low841.90.7127 ChiMac Off Med629.20.9536 5B W/L L/M751.80.7981 Predom. Up L/M634.90.9451 ChiMac Off High526.01.1407 5B W/L Med631.60.9500 Predom. Up Med556.01.0792 ChiMac AP Low721.90.8312 5B W/L M/H565.31.0614 Predom. Up M/H514.81.1654 ChiMac AP Med641.90.9347 5B W/L High532.01.1277 Predom. Up High494.11.2144 ChiMac AP High547.21.0964 W/L 60-40 Low1044.80.5743 Predom. Rc Low748.40.8018 BayMac Cove Island828.90.7239 W/L 60-40 L/M760.80.7887 Predom. Rc L/M567.21.0578 BayMac Shore822.70.7293 W/L 60-40 Med643.60.9322 Predom. Rc Med498.11.2046 Harvest Moon467.91.2823 W/L 60-40 M/H581.91.0311 Predom. Rc M/H452.51.3260 5B SF Bay Low876.80.6843 W/L 60-40 High553.41.0842      SA/DSPL Up24.52SA/DSPL Dn52.36
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance577.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating577.11.0397
FinRating, kevyt tuuli1023.00.9776
FinRating, kova tuuli446.91.1187
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance1.0397
Triple Number Coastal/Long Distance Low0.8698
Triple Number Coastal/Long Distance Medium1.1345
Triple Number Coastal/Long Distance High1.2864
Triple Number Windward/Leeward Low0.6797
Triple Number Windward/Leeward Medium0.9323
Triple Number Windward/Leeward High1.0788
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
For information
General Purpose Handicap (GPH)598.1
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Saronikos S All_Purpose606.40.9895
Saronikos S Upwind686.80.8736
Saronikos S Downwind511.91.1721
Saronikos N All_Purpose606.40.9895
Saronikos N Upwind718.20.8354
Saronikos N Downwind563.81.0642
Saronikos SW All_Purpose613.00.9788
Saronikos SW Upwind711.10.8438
Saronikos SW Downwind518.81.1566
Saronikos NE All_Purpose662.90.9051
Saronikos NE Upwind677.50.8857
Saronikos NE Downwind633.40.9473
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose552.11.0868
5-Band All-Purpose Low834.60.7189
5-Band All-Purpose L/M622.30.9642
5-Band All-Purpose Med538.01.1153
5-Band All-Purpose M/H487.21.2315
5-Band All-Purpose High455.01.3187
Single Number Predominant Upwind574.31.0447
Single Number Predominant Reaching512.71.1703
Single Number Predominant Downwind540.71.1096
5-Band 50-50 Windward/Leeward Low1038.20.5779
5-Band 50-50 Windward/Leeward L/M751.80.7981
5-Band 50-50 Windward/Leeward Med631.60.9500
5-Band 50-50 Windward/Leeward M/H565.31.0614
5-Band 50-50 Windward/Leeward High532.01.1277
5-Band 60-40 Windward/Leeward Low1044.80.5743
5-Band 60-40 Windward/Leeward L/M760.80.7887
5-Band 60-40 Windward/Leeward Med643.60.9322
5-Band 60-40 Windward/Leeward M/H581.91.0311
5-Band 60-40 Windward/Leeward High553.41.0842
Triple Number 50-50 Windward/Leeward Low924.50.6490
Triple Number 50-50 Windward/Leeward Med643.60.9322
Triple Number 50-50 Windward/Leeward High556.21.0788
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward660.40.9085
Triple Number 60-40 Windward/Leeward Low931.70.6440
Triple Number 60-40 Windward/Leeward Med655.10.9158
Triple Number 60-40 Windward/Leeward High573.91.0455
Triple Number All-Purpose Low749.10.8009
Triple Number All-Purpose Med546.31.0983
Triple Number All-Purpose High478.61.2537
Triple Number Predominant Upwind Low764.70.7846
Triple Number Predominant Upwind Med566.21.0598
Triple Number Predominant Upwind High514.21.1669
Triple Number Predominant Reaching Low678.80.8839
Triple Number Predominant Reaching Med512.61.1706
Triple Number Predominant Reaching High435.91.3766
Triple Number Predominant Downwind Low744.60.8058
Triple Number Predominant Downwind Med531.21.1295
Triple Number Predominant Downwind High439.51.3653
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low689.8
Triple Number Coastal/Long Distance Medium528.9
Triple Number Coastal/Long Distance High466.4
Triple Number Windward/Leeward Low882.7
Triple Number Windward/Leeward Medium643.6
Triple Number Windward/Leeward High556.2
Predominantly Upwind575.4
Predominantly Downwind540.1
Predominantly Reaching520.3
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8698
Triple Number Coastal/Long Distance Medium1.1345
Triple Number Coastal/Long Distance High1.2864
Triple Number Windward/Leeward Low0.6797
Triple Number Windward/Leeward Medium0.9323
Triple Number Windward/Leeward High1.0788
Coastal/Long Distance1.0397
Predominantly Upwind1.0427
Predominantly Downwind1.1109
For information
General Purpose Handicap (GPH)598.1
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.1287
Distanseseilas Trippeltall svak vind0.8698
Distanseseilas Trippeltall mellomvind1.1345
Distanseseilas Trippeltall sterk vind1.2864
Pølsebane Trippeltall svak vind0.6797
Pølsebane Trippeltall mellomvind0.9323
Pølsebane Trippeltall sterk vind1.0788
Motvind Singeltall1.0427
Medvind Singeltall1.1109
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Coastal/Long Distance577.11.0397
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind575.41.0427
Predominantly Downwind540.11.1109
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore511.41.1733
Cape Doctor Coastal428.81.3994
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8698
Triple Number Coastal/Long Distance Medium1.1345
Triple Number Coastal/Long Distance High1.2864
Triple Number Windward/Leeward Low0.6797
Triple Number Windward/Leeward Medium0.9323
Triple Number Windward/Leeward High1.0788
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.8698
Triple Number Coastal/Long Distance Medium1.1345
Triple Number Coastal/Long Distance High1.2864
Triple Number Windward/Leeward Low0.6797
Triple Number Windward/Leeward Medium0.9323
Triple Number Windward/Leeward High1.0788
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Predominantly Upwind575.41.0427
Predominantly Downwind540.11.1109
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance577.11.0397
Triple Number Coastal/Long Distance Low689.80.8698
Triple Number Coastal/Long Distance Medium528.91.1345
Triple Number Coastal/Long Distance High466.41.2864
Triple Number Windward/Leeward Low882.70.6797
Triple Number Windward/Leeward Medium643.60.9323
Triple Number Windward/Leeward High556.21.0788
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1405.3976.1740.6616.0545.5507.5476.7426.9403.5
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP552.11.0868 Predom. Dn High415.41.4443 5B AP M/H474.11.2656 TriNum AP Low689.80.8698 Predom. Rc Low748.40.8018 5B AP High445.71.3461 TriNum AP Med528.91.1343 Predom. Rc L/M567.21.0578 5B SF Bay Low876.80.6843 TriNum AP High466.41.2864 Predom. Rc Med498.11.2046 5B SF Bay L/M717.50.8363 TriNum W/L Low924.50.6490 Predom. Rc M/H452.51.3260 5B SF Bay Med610.60.9826 TriNum W/L Med643.60.9323 Predom. Rc High418.71.4331 5B SF Bay M/H550.41.0900 TriNum W/L Hig556.21.0788 5B W/L Low1038.20.5779 5B SF Bay High518.31.1577 Predom. Upwind599.51.0009 5B W/L L/M751.80.7981 ChiMac Up Low734.60.8167 Predom. Reaching532.21.1274 5B W/L Med631.60.9500 ChiMac Up Med658.60.9110 Predom. Downwind562.91.0659 5B W/L M/H565.31.0614 ChiMac Up High570.71.0513 Predom. Up Low841.90.7127 5B W/L High532.01.1277 ChiMac Off Low715.10.8390 Predom. Up L/M634.90.9451 W/L 60-40 Low1044.80.5743 ChiMac Off Med629.20.9536 Predom. Up Med556.01.0792 W/L 60-40 L/M760.80.7887 ChiMac Off High526.01.1407 Predom. Up M/H514.81.1654 W/L 60-40 Med643.60.9322 ChiMac AP Low721.90.8312 Predom. Up High494.11.2144 W/L 60-40 M/H581.91.0311 ChiMac AP Med641.90.9347 Predom. Dn Low834.10.7194 W/L 60-40 High553.41.0842 ChiMac AP High547.21.0964 Predom. Dn L/M612.90.9790 5B AP Low766.80.7825 BayMac Cove Island828.90.7239 Predom. Dn Med521.21.1513 5B AP L/M600.80.9987 BayMac Shore822.70.7293 Predom. Dn M/H459.81.3048 5B AP Med521.01.1516 Harvest Moon467.91.2823      SA/DSPL Up24.52SA/DSPL Dn52.36
ORC Ref  051800048FQ Issued on 04/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ROCKABILL VIIRL 10800
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJPK 10.80Measurement26/05/2022HINPlan reviewHull constructionLightCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall10.877Maximum beam3.660Draft2.166Displacement4,803Wetted area24.04IMS L9.860LSM09.432Accomod. length10.877Sink (kg/mm) 17.91
VCGD-0.397VCGM-0.341 RM Rated (kg·m) 138.2Limit of positive stability(°) 134.2 Stability Index 131.3 BLR index 0.0000Default crew weight633 Declared crew weight 680
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.425PBW0.096PIPA0.0038
EDL1.940ST10.065ST20.180
ST30.180ST40.112ST50.300
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialCarbonSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P13.770IG14.220ISP15.840MDT10.110MDL10.180MDT20.100MDL20.143TL1.200MW0.179GO0.198
E4.530J4.350BAS1.620FSD0.033SFJSPL4.860WPLTPS5.080BD0.170MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered138.2Flotation Date18/03/2024
SFFP0.728FFMFF1.216LCFcl5.635SG
SAFP10.820FAMFA0.729LCFsh5.889HBI1.119
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  051800048FQ Issued on 04/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ROCKABILL VIIRL 10800
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
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
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
ORC Ref  051800048FQ Issued on 04/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org