Non Spin/HSFClub Certificate2025
DEMELZAIRL100
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 Angles42.6°42.6°41.1°39.6°37.7°37.2°36.9°37.3°38.2°
Beat VMG2.223.033.664.124.424.554.624.624.56
52°3.404.585.415.886.126.266.336.376.37
60°3.594.805.606.016.246.396.486.536.56
75°3.694.915.706.116.356.536.676.836.90
90°3.584.795.626.086.356.556.737.037.21
110°3.074.265.225.896.276.536.767.217.62
120°2.904.065.035.756.186.456.697.167.68
135°2.523.614.585.365.926.266.516.957.46
150°2.093.094.034.825.485.966.286.727.16
Run VMG1.812.683.504.224.885.465.916.466.87
Gybe Angles147.6°147.6°152.3°159.3°167.6°174.1°178.1°179.5°179.2°
APH ToD:670.7CDL: 7.053APH ToT: 0.8945CertNo:
BOAT
ClassSHAMROCKDesignerR.HOLLANDBuilderAge date08/1979Series date01/1975Offset fileH505.BOFData fileIRL100
HULL
Length Overall9.046 mMaximum Beam3.098 mDraft1.671 mDisplacement3,560 kgDLR9.7479IMS DivisionCruiser/RacerDynamic Allowance0.510%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.336m
CREW
Maximum weight595 kg(declared)Minimum weight465 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail17.6517.95Headsail Luffed29.6529.65Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail5.12Storm Jib6.73Heavy Weather Jib18.16
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
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.
Non Spin/HSFClub Certificate2025
DEMELZAIRL100
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 VMG1621.41186.4983.9873.4814.7790.9779.9779.7789.6
52°1058.4785.3665.2612.4587.9574.7568.5565.4565.2
60°1003.3750.7642.7598.6576.9563.6555.6551.0548.7
75°974.5733.7631.9588.8566.8551.5540.0526.9522.0
90°1005.4751.0640.7591.9566.7549.5535.2512.5499.2
110°1173.0844.5689.7611.2574.2551.3532.3499.1472.5
120°1241.5886.3716.2626.2582.7557.9538.3502.5468.5
135°1430.0996.6785.9672.0608.5575.1553.4517.7482.8
150°1720.91164.7893.1747.1656.7603.6573.7535.6502.6
Run VMG1986.01344.91029.4852.7738.4659.5608.9557.6524.3
Selected Courses
Windward / Leeward1799.21265.61006.6863.0776.5725.2694.4668.7657.0
All purpose1358.9974.0791.6696.2643.1613.0594.3573.0559.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward817.40.7340
All purpose670.70.8945
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6765
Downwind "popa"0.7252
70% up, 30% down "Ilhabela"0.6904
30% up, 70% down "Ilhabela-inverso"0.7099
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Predominantly Upwind708.20.8472
Predominantly Downwind701.00.8559
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low882.80.6797
Triple Number AP Medium665.80.9012
Triple Number AP High591.01.0152
Triple Number Windward/Leeward Low1188.50.5048
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Single Number Predominant Upwind737.20.8139
Single Number Predominant Reaching675.30.8885
Single Number Predominant Downwind737.80.8133
Predominant Upwind - Low1026.20.5847
Predominant Upwind - Low/Med780.40.7688
Predominant Upwind - Medium683.20.8782
Predominant Upwind - Med/High636.30.9430
Predominant Upwind - High621.40.9656
Predominant Downwind Low1122.40.5346
Predominant Downwind Low/Med807.90.7427
Predominant Downwind Medium672.20.8926
Predominant Downwind Med/High593.21.0114
Predominant Downwind High557.41.0765
Predominant Reaching Low955.60.6279
Predominant Reaching Low/Med720.30.8330
Predominant Reaching Medium626.00.9585
Predominant Reaching Med/High574.51.0444
Predominant Reaching High549.61.0917
SA/DSPL Upwind20.20SA/DSPL Downwind20.20
Scoring OptionTODTOT
5-Band Windward/Leeward Low1335.40.4493
5-Band Windward/Leeward Low/Med960.20.6249
5-Band Windward/Leeward Medium794.70.7550
5-Band Windward/Leeward Med/High702.20.8545
5-Band Windward/Leeward High671.10.8941
Windward/Leeward 60-40 Low1317.20.4555
Windward/Leeward 60-40 Low/Med958.10.6262
Windward/Leeward 60-40 Medium802.10.7480
Windward/Leeward 60-40 Med/High718.70.8349
Windward/Leeward 60-40 High693.20.8656
5-Band AP Low994.50.6033
5-Band AP Low/Med762.90.7865
5-Band AP Medium655.20.9157
5-Band AP Med/High598.01.0033
5-Band AP High574.31.0448
5-Band SF Bay Tour - Low1141.70.5255
5-Band SF Bay Tour - Low/Med915.70.6552
5-Band SF Bay Tour - Medium767.30.7820
5-Band SF Bay Tour - Med/High688.60.8714
5-Band SF Bay Tour - High662.00.9063
Chicago-Mac Upwind0.7883
Chicago-Mac All Purpose0.7888
Chicago-Mac Downwind0.7812
Bayview-Mac Cove Island0.5676
Bayview-Mac Shore0.5740
Harvest Moon Regatta591.01.0153
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance730.1
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating730.10.8218
FinRating, kevyt tuuli1318.10.7587
FinRating, kova tuuli579.40.8630
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8218
Triple Number Coastal/Long Distance Low0.6797
Triple Number Coastal/Long Distance Medium0.9013
Triple Number Coastal/Long Distance High1.0152
Triple Number Windward/Leeward Low0.5281
Triple Number Windward/Leeward Medium0.7392
Triple Number Windward/Leeward High0.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
For information
General Purpose Handicap (GPH)757.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low882.7
Triple Number Coastal/Long Distance Medium665.7
Triple Number Coastal/Long Distance High591.0
Triple Number Windward/Leeward Low1136.1
Triple Number Windward/Leeward Medium811.7
Triple Number Windward/Leeward High692.4
Predominantly Upwind708.2
Predominantly Downwind701.0
Predominantly Reaching664.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6797
Triple Number Coastal/Long Distance Medium0.9013
Triple Number Coastal/Long Distance High1.0152
Triple Number Windward/Leeward Low0.5281
Triple Number Windward/Leeward Medium0.7392
Triple Number Windward/Leeward High0.8665
Coastal/Long Distance0.8218
Predominantly Upwind0.8472
Predominantly Downwind0.8559
For information
General Purpose Handicap (GPH)757.1
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.8945
Distanseseilas Trippeltall svak vind0.6797
Distanseseilas Trippeltall mellomvind0.9013
Distanseseilas Trippeltall sterk vind1.0152
Pølsebane Trippeltall svak vind0.5281
Pølsebane Trippeltall mellomvind0.7392
Pølsebane Trippeltall sterk vind0.8665
Motvind Singeltall0.8472
Medvind Singeltall0.8559
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Coastal/Long Distance730.10.8218
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind708.20.8472
Predominantly Downwind701.00.8559
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore660.50.9084
Cape Doctor Coastal563.21.0653
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6797
Triple Number Coastal/Long Distance Medium0.9013
Triple Number Coastal/Long Distance High1.0152
Triple Number Windward/Leeward Low0.5281
Triple Number Windward/Leeward Medium0.7392
Triple Number Windward/Leeward High0.8665
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6797
Triple Number Coastal/Long Distance Medium0.9013
Triple Number Coastal/Long Distance High1.0152
Triple Number Windward/Leeward Low0.5281
Triple Number Windward/Leeward Medium0.7392
Triple Number Windward/Leeward High0.8665
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Predominantly Upwind708.20.8472
Predominantly Downwind701.00.8559
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance730.10.8218
Triple Number Coastal/Long Distance Low882.70.6797
Triple Number Coastal/Long Distance Medium665.70.9013
Triple Number Coastal/Long Distance High591.01.0152
Triple Number Windward/Leeward Low1136.10.5281
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1940.91273.5950.0781.8684.3635.7602.0553.2535.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low882.80.6797
Triple Number AP Medium665.80.9012
Triple Number AP High591.01.0152
Triple Number Windward/Leeward Low1188.50.5048
Triple Number Windward/Leeward Medium811.70.7392
Triple Number Windward/Leeward High692.40.8665
Single Number Predominant Upwind737.20.8139
Single Number Predominant Reaching675.30.8885
Single Number Predominant Downwind737.80.8133
Predominant Upwind - Low1026.20.5847
Predominant Upwind - Low/Med780.40.7688
Predominant Upwind - Medium683.20.8782
Predominant Upwind - Med/High636.30.9430
Predominant Upwind - High621.40.9656
Predominant Downwind Low1122.40.5346
Predominant Downwind Low/Med807.90.7427
Predominant Downwind Medium672.20.8926
Predominant Downwind Med/High593.21.0114
Predominant Downwind High557.41.0765
Predominant Reaching Low955.60.6279
Predominant Reaching Low/Med720.30.8330
Predominant Reaching Medium626.00.9585
Predominant Reaching Med/High574.51.0444
Predominant Reaching High549.61.0917
SA/DSPL Upwind20.20SA/DSPL Downwind20.20
Scoring OptionTODTOT
5-Band Windward/Leeward Low1335.40.4493
5-Band Windward/Leeward Low/Med960.20.6249
5-Band Windward/Leeward Medium794.70.7550
5-Band Windward/Leeward Med/High702.20.8545
5-Band Windward/Leeward High671.10.8941
Windward/Leeward 60-40 Low1317.20.4555
Windward/Leeward 60-40 Low/Med958.10.6262
Windward/Leeward 60-40 Medium802.10.7480
Windward/Leeward 60-40 Med/High718.70.8349
Windward/Leeward 60-40 High693.20.8656
5-Band AP Low994.50.6033
5-Band AP Low/Med762.90.7865
5-Band AP Medium655.20.9157
5-Band AP Med/High598.01.0033
5-Band AP High574.31.0448
5-Band SF Bay Tour - Low1141.70.5255
5-Band SF Bay Tour - Low/Med915.70.6552
5-Band SF Bay Tour - Medium767.30.7820
5-Band SF Bay Tour - Med/High688.60.8714
5-Band SF Bay Tour - High662.00.9063
Chicago-Mac Upwind0.7883
Chicago-Mac All Purpose0.7888
Chicago-Mac Downwind0.7812
Bayview-Mac Cove Island0.5676
Bayview-Mac Shore0.5740
Harvest Moon Regatta591.01.0153
Non Spin/HSFClub Certificate2025
DEMELZAIRL100
ORC
Central Rating Office
Issuing certificates for
Ireland
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSHAMROCKMeasurement20/09/2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA9.046Max. Beam3.098Draft1.671Displacement3,560Wetted area17.53IMS L7.387LSM07.147Acc. length9.046Sink (kg/mm) 12.25
VCGD0.070VCGM0.055RM Rated (kg·m) 57.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight426Declared crew weight595
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.336PBWPIPA0.0073
PSD0.025PHD0.070PHL0.123
PSA34.7°ESL0.590
ST10.020ST20.101ST30.101
ST40.053ST50.110
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays1CheckstaysSpreaders1Rotating mastNo
P9.750IG11.500ISP11.500MDT10.125MDL10.161MDT20.125MDL20.161TL0.600MW0.145GO0.175
E3.000J3.580BAS1.300FSD0.021SFJ0.450SPL3.340WPLTPSBD0.087MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered57.7Flotation Date20/09/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
DEMELZAIRL100
ORC
Central Rating Office
Issuing certificates for
Ireland
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment0010.651.161.9617.65
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.651.262.535.1811.48NoNo 29.65
CRUISER/RACER REQUIREMENTS*
Accommodation length9.0 mTable area0.44 m²Headroom1.62 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity60 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity30 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.