Club Certificate2026
WHITE KNIGHTIRL 9564
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 Angles45.4°42.5°40.6°38.3°37.1°36.7°36.6°36.8°38.0°
Beat VMG2.263.183.844.274.474.544.584.594.52
52°3.534.795.615.996.176.256.306.356.35
60°3.765.015.786.126.306.416.466.536.55
75°3.925.155.886.236.446.616.726.866.94
90°3.805.045.876.296.546.706.907.197.37
110°3.554.925.856.326.646.947.237.627.87
120°3.374.725.696.226.556.887.227.878.29
135°2.914.215.215.946.346.666.987.758.57
150°2.413.594.605.446.036.396.697.358.11
Run VMG2.093.113.994.755.425.926.296.867.50
Gybe Angles142.6°147.4°152.1°155.9°163.9°172.7°178.6°178.6°177.7°
APH ToD:637.3CDL: 7.047APH ToT: 0.9415CertNo:26090
BOAT
ClassHunter ImpalaDesignerDavid ThomasBuilderHunterBoatsAge date01/1979Series date01/1978Offset filek13613.bofData fileIRL9564_WhiteKnight
HULL
Length Overall8.500Maximum Beam2.794Draft1.739Displacement2,409DLR7.1633IMS DivisionCruiser/RacerDynamic Allowance0.240%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight510(declared)Minimum weight380 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.6322.07Headsail Luffed20.2820.28Headsail FlyingSymmetric39.6739.67Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail6.28Storm Jib4.52Heavy Weather Jib12.19
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting Moment 33.5 Stability Index 112.0
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  051800048KJ Issued on 05/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
WHITE KNIGHTIRL 9564
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 VMG1591.21131.6938.3843.9806.0792.7786.2783.6796.6
52°1021.1751.6641.8601.2583.2575.7571.5566.8567.2
60°956.9718.0622.4588.4571.1561.9557.3550.9549.5
75°919.0699.6611.9577.9558.6544.8535.5524.7518.7
90°947.9714.2613.6572.1550.4537.2521.7500.6488.2
110°1013.9731.0615.4570.1542.2518.5498.3472.4457.5
120°1067.3762.7633.0579.0549.4523.2498.4457.7434.4
135°1237.7854.9691.2606.5568.0540.9515.4464.6420.2
150°1492.91002.8782.8661.4597.1563.7538.4490.0444.0
Run VMG1723.91157.9902.3757.8664.2607.9572.7524.9480.3
Selected Courses
Windward / Leeward1657.51144.8920.3800.9735.1700.3679.5654.2638.4
All purpose1248.3885.0729.7654.6615.9594.1578.2554.8539.7
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward770.70.7785
All purpose637.30.9415
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6905
Downwind "popa"0.8096
70% up, 30% down "Ilhabela"0.7224
30% up, 70% down "Ilhabela-inverso"0.7698
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Predominantly Upwind683.40.8779
Predominantly Downwind650.00.9230
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP663.90.9038 Predom. Rc High528.31.1356 5B SF Bay L/M843.30.7115 TriNum AP Low807.40.7431 Predom. Dn Low999.70.6002 5B SF Bay Med728.90.8231 TriNum AP Med632.90.9480 Predom. Dn L/M733.70.8177 5B SF Bay M/H670.60.8947 TriNum AP High573.41.0464 Predom. Dn Med627.70.9559 5B SF Bay High644.80.9305 TriNum W/L Low1083.10.5540 Predom. Dn M/H564.91.0622 5B AP Low901.80.6653 TriNum W/L Med763.70.7856 Predom. Dn High527.21.1382 5B AP L/M709.30.8459 TriNum W/L Hig675.20.8886 ChiMac Up Low850.20.7057 5B AP Med625.00.9600 Predom. Upwind711.50.8433 ChiMac Up Med771.90.7773 5B AP M/H580.11.0343 Predom. Reaching639.00.9390 ChiMac Up High682.00.8798 5B AP High556.21.0787 Predom. Downwind681.30.8807 ChiMac Off Low857.30.6998 5B W/L Low1216.90.4931 Predom. Up Low963.60.6227 ChiMac Off Med756.90.7927 5B W/L L/M883.90.6788 Predom. Up L/M740.70.8100 ChiMac Off High638.50.9396 5B W/L Med751.00.7989 Predom. Up Med663.50.9042 ChiMac AP Low849.40.7064 5B W/L M/H683.40.8780 Predom. Up M/H628.40.9548 ChiMac AP Med761.30.7881 5B W/L High655.90.9148 Predom. Up High613.20.9785 ChiMac AP High658.30.9114 W/L 60-40 Low1213.10.4946 Predom. Rc Low875.90.6850 BayMac Cove Island976.70.6143 W/L 60-40 L/M889.90.6742 Predom. Rc L/M672.20.8925 BayMac Shore967.60.6201 W/L 60-40 Med764.70.7846 Predom. Rc Med598.11.0032 Harvest Moon568.51.0554 W/L 60-40 M/H704.40.8517 Predom. Rc M/H555.61.0800 5B SF Bay Low1021.40.5874 W/L 60-40 High682.00.8798      SA/DSPL Up23.25SA/DSPL Dn34.01
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance690.4
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating690.40.8690
FinRating, kevyt tuuli1201.60.8322
FinRating, kova tuuli560.00.8929
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8690
Triple Number Coastal/Long Distance Low0.7431
Triple Number Coastal/Long Distance Medium0.9481
Triple Number Coastal/Long Distance High1.0464
Triple Number Windward/Leeward Low0.5811
Triple Number Windward/Leeward Medium0.7856
Triple Number Windward/Leeward High0.8886
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
For information
General Purpose Handicap (GPH)712.8
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Saronikos S All_Purpose716.50.8375
Saronikos S Upwind794.90.7548
Saronikos S Downwind627.20.9566
Saronikos N All_Purpose716.50.8375
Saronikos N Upwind830.10.7228
Saronikos N Downwind685.60.8751
Saronikos SW All_Purpose723.80.8290
Saronikos SW Upwind814.70.7364
Saronikos SW Downwind639.40.9384
Saronikos NE All_Purpose786.70.7627
Saronikos NE Upwind783.50.7658
Saronikos NE Downwind771.30.7779
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose663.90.9038
5-Band All-Purpose Low976.50.6145
5-Band All-Purpose L/M734.90.8164
5-Band All-Purpose Med644.20.9313
5-Band All-Purpose M/H595.61.0074
5-Band All-Purpose High569.51.0536
Single Number Predominant Upwind681.70.8802
Single Number Predominant Reaching614.30.9767
Single Number Predominant Downwind651.20.9214
5-Band 50-50 Windward/Leeward Low1216.90.4931
5-Band 50-50 Windward/Leeward L/M883.90.6788
5-Band 50-50 Windward/Leeward Med751.00.7989
5-Band 50-50 Windward/Leeward M/H683.40.8780
5-Band 50-50 Windward/Leeward High655.90.9148
5-Band 60-40 Windward/Leeward Low1213.10.4946
5-Band 60-40 Windward/Leeward L/M889.90.6742
5-Band 60-40 Windward/Leeward Med764.70.7846
5-Band 60-40 Windward/Leeward M/H704.40.8517
5-Band 60-40 Windward/Leeward High682.00.8798
Triple Number 50-50 Windward/Leeward Low1083.10.5540
Triple Number 50-50 Windward/Leeward Med763.90.7855
Triple Number 50-50 Windward/Leeward High675.20.8886
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward784.00.7653
Triple Number 60-40 Windward/Leeward Low1082.70.5542
Triple Number 60-40 Windward/Leeward Med776.40.7728
Triple Number 60-40 Windward/Leeward High697.60.8601
Triple Number All-Purpose Low878.10.6833
Triple Number All-Purpose Med652.80.9191
Triple Number All-Purpose High588.31.0198
Triple Number Predominant Upwind Low881.20.6809
Triple Number Predominant Upwind Med673.00.8915
Triple Number Predominant Upwind High629.80.9528
Triple Number Predominant Reaching Low796.70.7531
Triple Number Predominant Reaching Med613.70.9776
Triple Number Predominant Reaching High539.61.1119
Triple Number Predominant Downwind Low890.40.6739
Triple Number Predominant Downwind Med639.00.9389
Triple Number Predominant Downwind High544.81.1014
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low807.4
Triple Number Coastal/Long Distance Medium632.8
Triple Number Coastal/Long Distance High573.4
Triple Number Windward/Leeward Low1032.5
Triple Number Windward/Leeward Medium763.7
Triple Number Windward/Leeward High675.2
Predominantly Upwind683.4
Predominantly Downwind650.0
Predominantly Reaching624.6
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7431
Triple Number Coastal/Long Distance Medium0.9481
Triple Number Coastal/Long Distance High1.0464
Triple Number Windward/Leeward Low0.5811
Triple Number Windward/Leeward Medium0.7856
Triple Number Windward/Leeward High0.8886
Coastal/Long Distance0.8690
Predominantly Upwind0.8779
Predominantly Downwind0.9230
For information
General Purpose Handicap (GPH)712.8
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9415
Distanseseilas Trippeltall svak vind0.7431
Distanseseilas Trippeltall mellomvind0.9481
Distanseseilas Trippeltall sterk vind1.0464
Pølsebane Trippeltall svak vind0.5811
Pølsebane Trippeltall mellomvind0.7856
Pølsebane Trippeltall sterk vind0.8886
Motvind Singeltall0.8779
Medvind Singeltall0.9230
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Coastal/Long Distance690.40.8690
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind683.40.8779
Predominantly Downwind650.00.9230
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore643.20.9329
Cape Doctor Coastal544.21.1025
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7431
Triple Number Coastal/Long Distance Medium0.9481
Triple Number Coastal/Long Distance High1.0464
Triple Number Windward/Leeward Low0.5811
Triple Number Windward/Leeward Medium0.7856
Triple Number Windward/Leeward High0.8886
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7431
Triple Number Coastal/Long Distance Medium0.9481
Triple Number Coastal/Long Distance High1.0464
Triple Number Windward/Leeward Low0.5811
Triple Number Windward/Leeward Medium0.7856
Triple Number Windward/Leeward High0.8886
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Predominantly Upwind683.40.8779
Predominantly Downwind650.00.9230
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance690.40.8690
Triple Number Coastal/Long Distance Low807.40.7431
Triple Number Coastal/Long Distance Medium632.80.9481
Triple Number Coastal/Long Distance High573.41.0464
Triple Number Windward/Leeward Low1032.50.5811
Triple Number Windward/Leeward Medium763.70.7856
Triple Number Windward/Leeward High675.20.8886
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1664.21146.1868.8729.5654.1615.8584.7532.1515.7
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP663.90.9038 Predom. Dn High527.21.1382 5B AP M/H580.11.0343 TriNum AP Low807.40.7431 Predom. Rc Low875.90.6850 5B AP High556.21.0787 TriNum AP Med632.90.9480 Predom. Rc L/M672.20.8925 5B SF Bay Low1021.40.5874 TriNum AP High573.41.0464 Predom. Rc Med598.11.0032 5B SF Bay L/M843.30.7115 TriNum W/L Low1083.10.5540 Predom. Rc M/H555.61.0800 5B SF Bay Med728.90.8231 TriNum W/L Med763.70.7856 Predom. Rc High528.31.1356 5B SF Bay M/H670.60.8947 TriNum W/L Hig675.20.8886 5B W/L Low1216.90.4931 5B SF Bay High644.80.9305 Predom. Upwind711.50.8433 5B W/L L/M883.90.6788 ChiMac Up Low850.20.7057 Predom. Reaching639.00.9390 5B W/L Med751.00.7989 ChiMac Up Med771.90.7773 Predom. Downwind681.30.8807 5B W/L M/H683.40.8780 ChiMac Up High682.00.8798 Predom. Up Low963.60.6227 5B W/L High655.90.9148 ChiMac Off Low857.30.6998 Predom. Up L/M740.70.8100 W/L 60-40 Low1213.10.4946 ChiMac Off Med756.90.7927 Predom. Up Med663.50.9042 W/L 60-40 L/M889.90.6742 ChiMac Off High638.50.9396 Predom. Up M/H628.40.9548 W/L 60-40 Med764.70.7846 ChiMac AP Low849.40.7064 Predom. Up High613.20.9785 W/L 60-40 M/H704.40.8517 ChiMac AP Med761.30.7881 Predom. Dn Low999.70.6002 W/L 60-40 High682.00.8798 ChiMac AP High658.30.9114 Predom. Dn L/M733.70.8177 5B AP Low901.80.6653 BayMac Cove Island976.70.6143 Predom. Dn Med627.70.9559 5B AP L/M709.30.8459 BayMac Shore967.60.6201 Predom. Dn M/H564.91.0622 5B AP Med625.00.9600 Harvest Moon568.51.0554      SA/DSPL Up23.25SA/DSPL Dn34.01
ORC Ref  051800048KJ Issued on 05/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
WHITE KNIGHTIRL 9564
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassHunter ImpalaMeasurement08/05/2017HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall8.500Maximum beam2.794Draft1.739Displacement2,409Wetted area14.57IMS L7.229LSM06.954Accomod. length8.437Sink (kg/mm) 10.12
VCGD0.050VCGM0.050 RM Rated (kg·m) 33.5Limit of positive stability(°) 115.8 Stability Index 112.0 BLR index 0.0000Default crew weight410 Declared crew weight 510
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P10.210IG9.500ISP9.650MDT10.100MDL10.129MDT2MDL2TLTaperMWGO
E3.510J2.820BAS1.300FSD0.000SFJ0.370SPL2.820WPLTPS0.000BDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.050Flotation Date08/05/2017
SFFP0.581FFM1.045FF1.045LCFcl4.899SG1.0252
SAFP8.105FAM0.906FA0.906LCFsh5.093HBI0.969
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  051800048KJ Issued on 05/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
WHITE KNIGHTIRL 9564
ORC Ireland
www.orc-ireland.org
info@orc-ireland.org
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM010.771.342.3021.63from IRC 2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentG010.521.042.094.179.68NoNo 20.28from IRC 2025
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentSS019.379.379.375.085.0839.67from IRC 2025
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length8.4 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity36 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  051800048KJ Issued on 05/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org