Non Spin/HSFClub Certificate2026
DEMELZAIRL100
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 Angles45.9°43.0°41.5°40.0°38.1°37.3°37.1°37.3°38.6°
Beat VMG2.102.983.614.074.394.544.614.644.55
52°3.294.535.375.866.126.276.346.386.38
60°3.524.765.576.006.246.396.496.556.57
75°3.674.885.686.116.356.536.686.886.96
90°3.554.785.616.086.366.566.757.117.34
110°2.974.265.225.896.286.556.797.327.70
120°2.794.065.035.756.196.476.717.277.76
135°2.433.624.595.365.926.276.527.027.57
150°2.053.094.034.825.495.976.296.757.26
Run VMG1.772.683.504.234.885.465.926.476.91
Gybe Angles144.4°147.6°152.3°159.3°167.6°174.1°178.1°179.2°179.0°
APH ToD:671.8CDL: 7.003APH ToT: 0.8931CertNo:26020_NS
BOAT
ClassSHAMROCKDesignerR.HOLLANDBuilderAge date08/1979Series date01/1975Offset fileH505.BOFData fileIRL100
HULL
Length Overall9.046Maximum Beam3.098Draft1.671Displacement3,560DLR9.7479IMS DivisionCruiser/RacerDynamic Allowance0.510%Age Allowance0.650%RS Assessment-0.254%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.336m
CREW
Maximum weight595(declared)Minimum weight465 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail17.6517.95Headsail Luffed29.6529.65Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail5.12Storm Jib6.73Heavy Weather Jib18.16
SAIL LIMITS
Headsails5
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting Moment 57.7 Stability Index 110.6
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  051800048HT Issued on 05/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
DEMELZAIRL100
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 VMG1715.61206.4997.6883.5820.9792.4781.0776.7791.4
52°1094.9794.4670.4614.7588.6574.6567.6564.6564.4
60°1022.1757.1645.9599.7577.1563.4554.8550.0547.6
75°980.9737.1633.3589.0566.7551.3539.0523.3517.6
90°1015.1753.3641.8591.9566.0548.4533.2506.2490.2
110°1212.0845.2689.9611.0573.3550.0529.8491.7467.3
120°1288.4886.2715.9625.8581.8556.6536.3495.5464.1
135°1481.5995.6785.0671.3607.9574.1552.1513.1475.8
150°1758.11163.7892.4746.5656.2603.1572.7533.4496.0
Run VMG2030.11343.71028.6852.0737.8659.0608.4556.5521.0
Selected Courses
Windward / Leeward1872.81275.11013.1867.8779.4725.7694.7666.6656.2
All purpose1407.9979.7795.2698.4644.1612.8593.5569.5555.6
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward820.40.7314
All purpose671.80.8931
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6711
Downwind "popa"0.7259
70% up, 30% down "Ilhabela"0.6866
30% up, 70% down "Ilhabela-inverso"0.7085
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Predominantly Upwind711.00.8439
Predominantly Downwind701.40.8555
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP699.80.8574 Predom. Rc High545.71.0995 5B SF Bay L/M917.70.6538 TriNum AP Low887.40.6761 Predom. Dn Low1135.00.5286 5B SF Bay Med770.00.7792 TriNum AP Med667.10.8995 Predom. Dn L/M808.90.7417 5B SF Bay M/H688.50.8715 TriNum AP High589.41.0181 Predom. Dn Med672.20.8925 5B SF Bay High660.10.9090 TriNum W/L Low1202.40.4990 Predom. Dn M/H592.11.0134 5B AP Low1006.60.5961 TriNum W/L Med814.90.7363 Predom. Dn High554.31.0824 5B AP L/M765.90.7833 TriNum W/L Hig691.90.8672 ChiMac Up Low911.10.6586 5B AP Med656.30.9142 Predom. Upwind742.10.8086 ChiMac Up Med816.00.7353 5B AP M/H597.01.0051 Predom. Reaching677.00.8862 ChiMac Up High707.00.8486 5B AP High571.31.0503 Predom. Downwind739.80.8110 ChiMac Off Low958.60.6259 5B W/L Low1359.00.4415 Predom. Up Low1045.80.5737 ChiMac Off Med833.60.7197 5B W/L L/M965.90.6212 Predom. Up L/M785.70.7637 ChiMac Off High688.30.8718 5B W/L Med797.50.7523 Predom. Up Med685.40.8754 ChiMac AP Low928.50.6462 5B W/L M/H702.30.8544 Predom. Up M/H635.70.9438 ChiMac AP Med820.30.7314 5B W/L High669.60.8960 Predom. Up High619.10.9691 ChiMac AP High694.90.8635 W/L 60-40 Low1343.50.4466 Predom. Rc Low966.90.6205 BayMac Cove Island1076.50.5574 W/L 60-40 L/M965.20.6217 Predom. Rc L/M721.90.8311 BayMac Shore1064.40.5637 W/L 60-40 Med805.60.7448 Predom. Rc Med626.20.9582 Harvest Moon598.71.0022 W/L 60-40 M/H718.90.8346 Predom. Rc M/H573.01.0472 5B SF Bay Low1130.60.5307 W/L 60-40 High691.70.8674      SA/DSPL Up20.20SA/DSPL Dn20.20
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance732.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating732.00.8197
FinRating, kevyt tuuli1345.30.7434
FinRating, kova tuuli576.50.8673
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8197
Triple Number Coastal/Long Distance Low0.6761
Triple Number Coastal/Long Distance Medium0.8996
Triple Number Coastal/Long Distance High1.0181
Triple Number Windward/Leeward Low0.5244
Triple Number Windward/Leeward Medium0.7363
Triple Number Windward/Leeward High0.8672
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
For information
General Purpose Handicap (GPH)759.1
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Saronikos S All_Purpose758.70.7908
Saronikos S Upwind828.20.7244
Saronikos S Downwind694.90.8635
Saronikos N All_Purpose758.70.7908
Saronikos N Upwind865.50.6933
Saronikos N Downwind769.90.7793
Saronikos SW All_Purpose774.70.7745
Saronikos SW Upwind855.90.7010
Saronikos SW Downwind714.00.8404
Saronikos NE All_Purpose850.90.7051
Saronikos NE Upwind816.70.7346
Saronikos NE Downwind883.00.6795
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose699.80.8574
5-Band All-Purpose Low1082.40.5543
5-Band All-Purpose L/M793.60.7560
5-Band All-Purpose Med676.90.8864
5-Band All-Purpose M/H612.50.9796
5-Band All-Purpose High585.21.0253
Single Number Predominant Upwind708.80.8465
Single Number Predominant Reaching647.70.9263
Single Number Predominant Downwind702.60.8540
5-Band 50-50 Windward/Leeward Low1359.00.4415
5-Band 50-50 Windward/Leeward L/M965.90.6212
5-Band 50-50 Windward/Leeward Med797.50.7523
5-Band 50-50 Windward/Leeward M/H702.30.8544
5-Band 50-50 Windward/Leeward High669.60.8960
5-Band 60-40 Windward/Leeward Low1343.50.4466
5-Band 60-40 Windward/Leeward L/M965.20.6217
5-Band 60-40 Windward/Leeward Med805.60.7448
5-Band 60-40 Windward/Leeward M/H718.90.8346
5-Band 60-40 Windward/Leeward High691.70.8674
Triple Number 50-50 Windward/Leeward Low1202.40.4990
Triple Number 50-50 Windward/Leeward Med815.00.7362
Triple Number 50-50 Windward/Leeward High691.90.8672
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward828.00.7247
Triple Number 60-40 Windward/Leeward Low1192.30.5032
Triple Number 60-40 Windward/Leeward Med821.90.7300
Triple Number 60-40 Windward/Leeward High710.00.8451
Triple Number All-Purpose Low966.10.6211
Triple Number All-Purpose Med688.60.8714
Triple Number All-Purpose High604.40.9928
Triple Number Predominant Upwind Low952.80.6298
Triple Number Predominant Upwind Med698.90.8585
Triple Number Predominant Upwind High633.70.9468
Triple Number Predominant Reaching Low871.90.6882
Triple Number Predominant Reaching Med644.30.9313
Triple Number Predominant Reaching High556.41.0784
Triple Number Predominant Downwind Low1001.20.5993
Triple Number Predominant Downwind Med689.40.8704
Triple Number Predominant Downwind High573.81.0457
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low887.4
Triple Number Coastal/Long Distance Medium667.0
Triple Number Coastal/Long Distance High589.3
Triple Number Windward/Leeward Low1144.2
Triple Number Windward/Leeward Medium814.9
Triple Number Windward/Leeward High691.9
Predominantly Upwind711.0
Predominantly Downwind701.4
Predominantly Reaching664.9
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6761
Triple Number Coastal/Long Distance Medium0.8996
Triple Number Coastal/Long Distance High1.0181
Triple Number Windward/Leeward Low0.5244
Triple Number Windward/Leeward Medium0.7363
Triple Number Windward/Leeward High0.8672
Coastal/Long Distance0.8197
Predominantly Upwind0.8439
Predominantly Downwind0.8555
For information
General Purpose Handicap (GPH)759.1
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.8931
Distanseseilas Trippeltall svak vind0.6761
Distanseseilas Trippeltall mellomvind0.8996
Distanseseilas Trippeltall sterk vind1.0181
Pølsebane Trippeltall svak vind0.5244
Pølsebane Trippeltall mellomvind0.7363
Pølsebane Trippeltall sterk vind0.8672
Motvind Singeltall0.8439
Medvind Singeltall0.8555
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Coastal/Long Distance732.00.8197
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind711.00.8439
Predominantly Downwind701.40.8555
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore659.30.9101
Cape Doctor Coastal559.81.0719
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6761
Triple Number Coastal/Long Distance Medium0.8996
Triple Number Coastal/Long Distance High1.0181
Triple Number Windward/Leeward Low0.5244
Triple Number Windward/Leeward Medium0.7363
Triple Number Windward/Leeward High0.8672
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6761
Triple Number Coastal/Long Distance Medium0.8996
Triple Number Coastal/Long Distance High1.0181
Triple Number Windward/Leeward Low0.5244
Triple Number Windward/Leeward Medium0.7363
Triple Number Windward/Leeward High0.8672
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Predominantly Upwind711.00.8439
Predominantly Downwind701.40.8555
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance732.00.8197
Triple Number Coastal/Long Distance Low887.40.6761
Triple Number Coastal/Long Distance Medium667.00.8996
Triple Number Coastal/Long Distance High589.31.0181
Triple Number Windward/Leeward Low1144.20.5244
Triple Number Windward/Leeward Medium814.90.7363
Triple Number Windward/Leeward High691.90.8672
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1888.51281.9955.3785.1685.8635.5601.1549.3531.8
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP699.80.8574 Predom. Dn High554.31.0824 5B AP M/H597.01.0051 TriNum AP Low887.40.6761 Predom. Rc Low966.90.6205 5B AP High571.31.0503 TriNum AP Med667.10.8995 Predom. Rc L/M721.90.8311 5B SF Bay Low1130.60.5307 TriNum AP High589.41.0181 Predom. Rc Med626.20.9582 5B SF Bay L/M917.70.6538 TriNum W/L Low1202.40.4990 Predom. Rc M/H573.01.0472 5B SF Bay Med770.00.7792 TriNum W/L Med814.90.7363 Predom. Rc High545.71.0995 5B SF Bay M/H688.50.8715 TriNum W/L Hig691.90.8672 5B W/L Low1359.00.4415 5B SF Bay High660.10.9090 Predom. Upwind742.10.8086 5B W/L L/M965.90.6212 ChiMac Up Low911.10.6586 Predom. Reaching677.00.8862 5B W/L Med797.50.7523 ChiMac Up Med816.00.7353 Predom. Downwind739.80.8110 5B W/L M/H702.30.8544 ChiMac Up High707.00.8486 Predom. Up Low1045.80.5737 5B W/L High669.60.8960 ChiMac Off Low958.60.6259 Predom. Up L/M785.70.7637 W/L 60-40 Low1343.50.4466 ChiMac Off Med833.60.7197 Predom. Up Med685.40.8754 W/L 60-40 L/M965.20.6217 ChiMac Off High688.30.8718 Predom. Up M/H635.70.9438 W/L 60-40 Med805.60.7448 ChiMac AP Low928.50.6462 Predom. Up High619.10.9691 W/L 60-40 M/H718.90.8346 ChiMac AP Med820.30.7314 Predom. Dn Low1135.00.5286 W/L 60-40 High691.70.8674 ChiMac AP High694.90.8635 Predom. Dn L/M808.90.7417 5B AP Low1006.60.5961 BayMac Cove Island1076.50.5574 Predom. Dn Med672.20.8925 5B AP L/M765.90.7833 BayMac Shore1064.40.5637 Predom. Dn M/H592.11.0134 5B AP Med656.30.9142 Harvest Moon598.71.0022      SA/DSPL Up20.20SA/DSPL Dn20.20
ORC Ref  051800048HT Issued on 05/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
DEMELZAIRL100
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassSHAMROCKMeasurement20/09/2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.046Maximum beam3.098Draft1.671Displacement3,560Wetted area17.53IMS L7.387LSM07.147Accomod. length9.046Sink (kg/mm) 12.25
VCGD0.070VCGM0.055 RM Rated (kg·m) 57.7Limit of positive stability(°) 112.0 Stability Index 110.6 BLR index 0.0000Default crew weight426 Declared crew weight 595
Centerboard weightList angleCanting keel angle
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
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysYesCheckstaysNoSpreaders1Rotating mastNo
P9.750IG11.500ISP11.500MDT10.125MDL10.161MDT20.125MDL20.161TL0.600MW0.145GO0.175
E3.000J3.580BAS1.300FSD0.021SFJ0.450SPL3.340WPLTPSBD0.087MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered57.7Flotation Date20/09/2025
SFFP0.574FFMFF1.130LCFcl5.082SG
SAFP8.488FAMFA0.821LCFsh5.308HBI0.966
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  051800048HT Issued on 05/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
DEMELZAIRL100
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment0010.651.161.9617.65
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.651.262.535.1811.48NoNo 29.65
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
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.
ORC Ref  051800048HT Issued on 05/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org