Club Certificate2026
MACKEY GIRL 3170
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 Angles46.2°43.8°42.0°40.4°39.0°37.9°37.6°37.8°39.0°
Beat VMG2.093.043.764.284.664.884.975.004.91
52°3.284.665.636.266.646.866.977.047.03
60°3.534.935.896.476.827.047.187.287.29
75°3.715.106.066.646.977.237.447.707.79
90°3.625.136.196.827.167.357.548.008.30
110°3.675.196.296.937.347.718.048.498.87
120°3.515.006.116.827.277.688.098.959.64
135°3.064.475.586.467.007.417.848.8310.34
150°2.533.784.875.826.567.037.428.249.37
Run VMG2.193.274.225.055.786.376.837.568.32
Gybe Angles142.9°146.2°150.1°152.8°158.8°165.5°171.8°176.3°168.1°
APH ToD:597.5CDL: 8.235APH ToT: 1.0043CertNo:26154
BOAT
ClassFIRST 31.7DesignerFINOTBuilderBENETEAUAge date01/2000Series date01/1988Offset fileFIRST317.offData fileIRL3170
HULL
Length Overall9.610 mMaximum Beam3.212 mDraft1.917 mDisplacement3,595 kgDLR5.1870IMS DivisionCruiser/RacerDynamic Allowance0.300%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.412m
CREW
Maximum weight578 kgMinimum weight448 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail25.2525.80Headsail Luffed22.1222.12Headsail FlyingSymmetric63.5463.54Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail7.37Storm Jib7.01Heavy Weather Jib18.93
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting Moment 77.2 kg·m Stability Index 110.0
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  05180004W2B Issued on 04/08/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MACKEY GIRL 3170
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 VMG1725.71183.5957.8841.8772.6737.3724.1719.6733.4
52°1096.4771.8639.1575.2542.1524.7516.3511.1512.4
60°1019.2730.4611.0556.2528.2511.6501.6494.5494.1
75°971.5706.2594.3542.5516.2498.0483.7467.7462.1
90°995.2702.0581.2528.1503.0489.9477.3449.8433.6
110°982.2694.1572.1519.8490.5466.7447.9423.8405.7
120°1024.9720.6589.6527.8495.1468.5444.8402.4373.3
135°1178.3805.9644.9557.6514.5485.5459.4407.6348.3
150°1424.0952.8738.7619.0549.0511.7484.9436.8384.1
Run VMG1644.31100.2852.9713.1622.7565.3527.4476.4432.7
Selected Courses
Windward / Leeward1685.01141.9905.3777.4697.6651.3625.8598.0583.1
All purpose1270.5876.9708.4622.4573.1544.0525.5500.3482.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward735.10.8162
All purpose597.51.0043
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7075
Downwind "popa"0.8646
70% up, 30% down "Ilhabela"0.7483
30% up, 70% down "Ilhabela-inverso"0.8106
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Predominantly Upwind649.10.9243
Predominantly Downwind607.10.9883
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP622.70.9636 Predom. Rc High473.61.2668 5B SF Bay L/M824.30.7279 TriNum AP Low792.60.7570 Predom. Dn Low970.70.6181 5B SF Bay Med690.90.8684 TriNum AP Med593.61.0108 Predom. Dn L/M695.80.8623 5B SF Bay M/H616.70.9729 TriNum AP High520.71.1524 Predom. Dn Med582.61.0299 5B SF Bay High587.31.0216 TriNum W/L Low1077.00.5571 Predom. Dn M/H513.91.1675 5B AP Low889.50.6746 TriNum W/L Med729.90.8220 Predom. Dn High472.91.2688 5B AP L/M682.90.8786 TriNum W/L Hig621.70.9651 ChiMac Up Low849.00.7067 5B AP Med583.71.0279 Predom. Upwind680.80.8813 ChiMac Up Med754.50.7952 5B AP M/H528.31.1356 Predom. Reaching599.31.0012 ChiMac Up High645.60.9294 5B AP High501.61.1962 Predom. Downwind637.70.9408 ChiMac Off Low822.80.7292 5B W/L Low1218.50.4924 Predom. Up Low983.00.6104 ChiMac Off Med717.60.8361 5B W/L L/M864.40.6941 Predom. Up L/M724.50.8281 ChiMac Off High593.51.0110 5B W/L Med714.50.8397 Predom. Up Med625.00.9601 ChiMac AP Low831.70.7214 5B W/L M/H631.40.9503 Predom. Up M/H574.71.0440 ChiMac AP Med733.10.8185 5B W/L High600.20.9997 Predom. Up High556.11.0790 ChiMac AP High617.60.9715 W/L 60-40 Low1227.30.4889 Predom. Rc Low866.10.6928 BayMac Cove Island964.60.6220 W/L 60-40 L/M876.10.6848 Predom. Rc L/M639.50.9382 BayMac Shore956.80.6271 W/L 60-40 Med729.50.8224 Predom. Rc Med553.41.0842 Harvest Moon521.91.1497 W/L 60-40 M/H651.00.9216 Predom. Rc M/H504.41.1895 5B SF Bay Low1018.80.5889 W/L 60-40 High624.70.9604      SA/DSPL Up20.10SA/DSPL Dn37.67
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance651.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating651.00.9216
FinRating, kevyt tuuli1202.60.8316
FinRating, kova tuuli504.00.9920
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9216
Triple Number Coastal/Long Distance Low0.7570
Triple Number Coastal/Long Distance Medium1.0109
Triple Number Coastal/Long Distance High1.1524
Triple Number Windward/Leeward Low0.5862
Triple Number Windward/Leeward Medium0.8220
Triple Number Windward/Leeward High0.9651
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
For information
General Purpose Handicap (GPH)675.9
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Saronikos S All Purpose692.00.8671
Saronikos S Upwind787.40.7620
Saronikos S Downwind579.51.0353
Saronikos N All Purpose727.30.8250
Saronikos N Upwind825.40.7269
Saronikos N Downwind638.50.9397
Saronikos SW All Purpose702.60.8540
Saronikos SW Upwind817.40.7340
Saronikos SW Downwind589.81.0174
Saronikos NE All Purpose760.00.7895
Saronikos NE Upwind776.80.7724
Saronikos NE Downwind724.60.8281
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose622.70.9636
5-Band All Purpose Low972.10.6172
5-Band All Purpose L/M707.60.8480
5-Band All Purpose Med602.40.9960
5-Band All Purpose M/H543.71.1036
5-Band All Purpose High514.11.1670
Single Number Predominant Upwind647.90.9260
Single Number Predominant Reaching572.71.0477
Single Number Predominant Downwind607.60.9875
5-Band 50-50 Windward/Leeward Low1218.50.4924
5-Band 50-50 Windward/Leeward L/M864.40.6941
5-Band 50-50 Windward/Leeward Med714.50.8397
5-Band 50-50 Windward/Leeward M/H631.40.9503
5-Band 50-50 Windward/Leeward High600.20.9997
5-Band 60-40 Windward/Leeward Low1227.30.4889
5-Band 60-40 Windward/Leeward L/M876.10.6848
5-Band 60-40 Windward/Leeward Med729.50.8224
5-Band 60-40 Windward/Leeward M/H651.00.9216
5-Band 60-40 Windward/Leeward High624.70.9604
Triple Number 50-50 Windward/Leeward Low1077.00.5571
Triple Number 50-50 Windward/Leeward Med730.10.8218
Triple Number 50-50 Windward/Leeward High621.70.9651
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward750.30.7997
Triple Number 60-40 Windward/Leeward Low1086.50.5522
Triple Number 60-40 Windward/Leeward Med744.50.8059
Triple Number 60-40 Windward/Leeward High642.50.9338
Triple Number All-Purpose Low865.10.6935
Triple Number All-Purpose Med612.80.9790
Triple Number All-Purpose High535.31.1209
Triple Number Predominant Upwind Low886.20.6771
Triple Number Predominant Upwind Med638.20.9402
Triple Number Predominant Upwind High574.41.0446
Triple Number Predominant Reaching Low779.00.7702
Triple Number Predominant Reaching Med571.21.0503
Triple Number Predominant Reaching High487.41.2310
Triple Number Predominant Downwind Low859.50.6980
Triple Number Predominant Downwind Med594.31.0096
Triple Number Predominant Downwind High493.31.2164
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low792.6
Triple Number Coastal/Long Distance Medium593.5
Triple Number Coastal/Long Distance High520.7
Triple Number Windward/Leeward Low1023.5
Triple Number Windward/Leeward Medium729.9
Triple Number Windward/Leeward High621.7
Predominantly Upwind649.1
Predominantly Downwind607.1
Predominantly Reaching582.3
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7570
Triple Number Coastal/Long Distance Medium1.0109
Triple Number Coastal/Long Distance High1.1524
Triple Number Windward/Leeward Low0.5862
Triple Number Windward/Leeward Medium0.8220
Triple Number Windward/Leeward High0.9651
Coastal/Long Distance0.9216
Predominantly Upwind0.9243
Predominantly Downwind0.9883
For information
General Purpose Handicap (GPH)675.9
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0043
Distanseseilas Trippeltall svak vind0.7570
Distanseseilas Trippeltall mellomvind1.0109
Distanseseilas Trippeltall sterk vind1.1524
Pølsebane Trippeltall svak vind0.5862
Pølsebane Trippeltall mellomvind0.8220
Pølsebane Trippeltall sterk vind0.9651
Motvind Singeltall0.9243
Medvind Singeltall0.9883
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Coastal/Long Distance651.00.9216
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind649.10.9243
Predominantly Downwind607.10.9883
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore587.51.0212
Cape Doctor Coastal488.11.2294
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7570
Triple Number Coastal/Long Distance Medium1.0109
Triple Number Coastal/Long Distance High1.1524
Triple Number Windward/Leeward Low0.5862
Triple Number Windward/Leeward Medium0.8220
Triple Number Windward/Leeward High0.9651
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7570
Triple Number Coastal/Long Distance Medium1.0109
Triple Number Coastal/Long Distance High1.1524
Triple Number Windward/Leeward Low0.5862
Triple Number Windward/Leeward Medium0.8220
Triple Number Windward/Leeward High0.9651
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Predominantly Upwind649.10.9243
Predominantly Downwind607.10.9883
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance651.00.9216
Triple Number Coastal/Long Distance Low792.60.7570
Triple Number Coastal/Long Distance Medium593.51.0109
Triple Number Coastal/Long Distance High520.71.1524
Triple Number Windward/Leeward Low1023.50.5862
Triple Number Windward/Leeward Medium729.90.8220
Triple Number Windward/Leeward High621.70.9651
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1680.91137.7850.3700.6611.3564.5531.2477.5458.6
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP622.70.9636 Predom. Dn High472.91.2688 5B AP M/H528.31.1356 TriNum AP Low792.60.7570 Predom. Rc Low866.10.6928 5B AP High501.61.1962 TriNum AP Med593.61.0108 Predom. Rc L/M639.50.9382 5B SF Bay Low1018.80.5889 TriNum AP High520.71.1524 Predom. Rc Med553.41.0842 5B SF Bay L/M824.30.7279 TriNum W/L Low1077.00.5571 Predom. Rc M/H504.41.1895 5B SF Bay Med690.90.8684 TriNum W/L Med729.90.8220 Predom. Rc High473.61.2668 5B SF Bay M/H616.70.9729 TriNum W/L Hig621.70.9651 5B W/L Low1218.50.4924 5B SF Bay High587.31.0216 Predom. Upwind680.80.8813 5B W/L L/M864.40.6941 ChiMac Up Low849.00.7067 Predom. Reaching599.31.0012 5B W/L Med714.50.8397 ChiMac Up Med754.50.7952 Predom. Downwind637.70.9408 5B W/L M/H631.40.9503 ChiMac Up High645.60.9294 Predom. Up Low983.00.6104 5B W/L High600.20.9997 ChiMac Off Low822.80.7292 Predom. Up L/M724.50.8281 W/L 60-40 Low1227.30.4889 ChiMac Off Med717.60.8361 Predom. Up Med625.00.9601 W/L 60-40 L/M876.10.6848 ChiMac Off High593.51.0110 Predom. Up M/H574.71.0440 W/L 60-40 Med729.50.8224 ChiMac AP Low831.70.7214 Predom. Up High556.11.0790 W/L 60-40 M/H651.00.9216 ChiMac AP Med733.10.8185 Predom. Dn Low970.70.6181 W/L 60-40 High624.70.9604 ChiMac AP High617.60.9715 Predom. Dn L/M695.80.8623 5B AP Low889.50.6746 BayMac Cove Island964.60.6220 Predom. Dn Med582.61.0299 5B AP L/M682.90.8786 BayMac Shore956.80.6271 Predom. Dn M/H513.91.1675 5B AP Med583.71.0279 Harvest Moon521.91.1497      SA/DSPL Up20.10SA/DSPL Dn37.67
ORC Ref  05180004W2B Issued on 04/08/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MACKEY GIRL 3170
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFIRST 31.7MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall9.610Maximum beam3.212Draft1.917Displacement3,595Wetted area20.14IMS L8.998LSM08.849Accomod. length9.610Sink (kg/mm) 15.52
VCGD0.123VCGM0.091 RM Rated (kg·m) 77.2Limit of positive stability(°) 112.3 Stability Index 110.0 BLR index 0.0000Default crew weight578 Declared crew weight
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.412PBWPIPA0.0032
EDL2.560ST10.042ST20.180
ST30.180ST40.112ST50.262
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P10.790IG11.840ISP11.855MDT10.104MDL10.158MDT20.104MDL20.158TLMW0.158GO0.158
E3.900J3.510BAS1.725FSDSFJSPL3.490WPLTPSBD0.112MWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2013
SFFP0.303FFM1.194FF1.194LCFcl5.310SG
SAFP8.732FAM0.970FA0.970LCFsh5.543HBI1.076
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  05180004W2B Issued on 04/08/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
MACKEY GIRL 3170
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMain0.831.482.5225.25from IRC 2021
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG10.080.531.011.993.033.7411.22NoNo 22.1230/07/2026
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS111.8811.8811.886.476.2163.54from IRC 2021
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length9.6 mTable area0.44 m²Headroom1.67 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity72 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity42 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  05180004W2B Issued on 04/08/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org