MultihullInternational Certificate2026
AllegraSUI 888
ORC Multihull
Rating Office
www.orc.org/multihull
mh@orc.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 Angles46.6°46.6°46.0°44.4°43.4°43.1°43.5°43.7°44.9°
Beat VMG3.694.825.686.927.888.779.6710.5910.85
52°5.837.628.9510.7012.0713.4715.0416.5717.10
60°6.398.329.7011.4112.8714.5016.5118.3319.22
75°5.818.8911.4612.0713.7015.7918.5321.7122.85
90°5.979.1411.8212.4113.6915.8318.6624.3626.39
110°5.047.7910.4312.4814.5513.7415.7020.9228.50
120°4.977.409.8212.1914.1716.5719.3224.0922.76
135°4.426.618.7810.8212.5814.5516.7421.8727.38
150°3.735.527.279.0310.5711.9813.8117.9123.00
Run VMG3.234.786.307.829.1510.3811.9615.5119.92
Gybe Angles141.7°141.7°139.5°141.3°143.9°137.5°139.5°137.6°135.9°
MHR:339.4CertNo:MH011
BOAT
ClassIrens 78DesignerIrens_NigelBuilderGreen MarineAge date06/2014Series date06/2014Offset fileMH011.offData fileMH011
HULL
Length Overall25.530 mMaximum Beam9.766 mDraft4.331 mDisplacement32,090 kgDLR1.8447Dynamic Allowance0.100%Age Allowance0.390%RSA-0.407%
PROPELLER
InstallationShaft exposedTypeFolding 4 bladesDiameter0.500m
CREW
Weight965 kg(declared)Crew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail216.46243.77Headsail Luffed91.5591.55Headsail Flying213.65SymmetricAsymmetric508.20
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.
MultihullInternational Certificate2026
AllegraSUI 888
ORC Multihull
Rating Office
www.orc.org/multihull
mh@orc.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 VMG975.3747.5633.7520.2457.0410.3372.4339.9331.9
52°617.8472.7402.2336.4298.1267.3239.4217.2210.5
60°563.5432.5371.1315.5279.8248.2218.0196.4187.4
75°620.1405.1314.0298.2262.8228.0194.3165.8157.5
90°602.8393.8304.7290.0263.0227.4192.9147.8136.4
110°714.6462.1345.0288.4247.4262.0229.3172.1126.3
120°724.7486.6366.6295.4254.1217.2186.3149.4158.2
135°813.6544.3410.0332.7286.2247.4215.0164.6131.5
150°965.3652.6495.0398.7340.6300.4260.6201.1156.5
Run VMG1114.6753.6571.5460.3393.3346.9300.9232.2180.7
Selected Courses
Windward / Leeward1037.3750.5602.6490.3425.2378.6336.6286.0256.3
All purpose792.0561.0446.2372.9325.3291.1256.0214.3193.4
Single Number Scoring Options
Course Time On
Distance
Time On
Time
Windward / Leeward447.11.3420
All purpose339.41.7680
MultihullInternational Certificate2026
AllegraSUI 888
ORC Multihull
Rating Office
www.orc.org/multihull
mh@orc.org
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassIrens 78Measurement20/05/2021HIN1
LOA25.530Max. Beam9.766Draft4.331Displacement32,090Dspl lightship29,161Wetted area100.77
Superstructure frontal area22.65Superstructure lateral area61.33Default crew weight911Declared crew weight965
PROPELLER
Propeller TypeFolding 4 blades
InstallationShaft exposedTwin screwYesHydro generatorNo
PRD0.500PBW0.100PIPA0.0135
PSD0.030PHD0.080PHL0.120
PSA16.0°ESL0.900
ST10.050ST20.130ST30.180
ST40.080ST50.330
RIG
Single headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Jumper strutsNoRotating mastYesMast rakeMast cant angle
P31.000IG27.700ISP30.920MDT10.350MDL10.664MDT20.350MDL20.664TL0.000MW0.664GO0.664
E10.840J7.200JZ2.000BAS2.540FSDSFJ3.200SPLWPLTPS11.660BD
ForetrianglesIdITPTPZComment027.7007.2002.000main forestay030.92011.6602.000ISP/TPS228.69010.3052.500316.6006.5002.500Staysails130.92011.6602.500
FLOTATION
Flotation Date20/05/2021SG1.0250
FFM1.135FAM1.176
BALLAST
TANKS
IdDescriptionCapacityLCGVCGSp.Wght Condition
Measurement
Level
Sailing
01FUEL PORT1,00515.00-0.600.84003420.10002FUEL STARBOARD1,00515.00-0.600.84005330.10003WATER PORT67513.00-0.701.0000410.10004WATER STARBOARD67513.00-0.701.00001560.10005GREY PORT34513.50-0.701.01001110.10006GREY STARBOARD34513.50-0.701.0100560.10007BLACK PORT24514.00-0.701.0200540.10008BLACK STARBOARD24514.00-0.701.0200490.10009FUEL DAY T GEN7021.00-0.100.840001.00010FUEL DAY T PORT8021.00-0.100.840001.00011FUEL DAY T STARBOARD8021.00-0.100.840001.000
INVENTORY
IdDescriptionWeight MsrmentWeight SailingLCGVCGGAIdDescriptionWeight MsrmentWeight SailingLCGVCGGA01AncOff:MainOn:Fortress78305.501.80    02Chain98339.901.50    03Mainsail26526515.003.50    04SPINN. STAYSAIL-A25259.002.00    05A3-D015711.002.00    07Off:CrSlnt21,On:J1-C859110.002.00    08-SCR21,+SCR-C14012110.002.00    09A2 87kg08716.001.70    10GS-B03110.001.70    11J0-C09310.002.00    12CREW GEAR016518.001.00    14LiIon BATTERY585812.000.80    15MOORING LINE05514.001.50    16EngineSpares&tools03618.001.00    17SpareOils&Coolant010016.001.70    17Dishwasher51016.702.00    18-225kg 13/05/20252250    19J2C 33kg off00    204 mattresses 60kg off00    21Radar 5kg off5010.0010.00    22Anchor Fortress 15kg off15020.501.00    23Helm station dodgers 6kg off6018.502.00   
MultihullInternational Certificate2026
AllegraSUI 888
ORC Multihull
Rating Office
www.orc.org/multihull
mh@orc.org
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMN-Cv22.833.715.057.159.01216.4620/09/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentSCR-C0.111.793.547.1110.7314.4529.81NoYes0213.6527/08/2025OSP6634-003 SCR-CJ0-D0.121.502.955.908.9912.2629.87No30179.6923/04/2026OSP 7066-002J1-C0.231.192.063.645.066.2126.45NoNo091.5520/08/2025OSP 6634-001 J1CSS-A0.080.981.963.935.967.9716.92NoYes367.1027/08/2025SS-AGS-B0.090.811.573.024.355.6217.18YesYes350.3827/08/2025
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioFTAreaMeas.DateCommentA2-E35.4932.5234.0117.9417.91100%0508.2015/06/2026OSP-7068-001A1-A34.8929.9532.4216.1318.3188%0447.5607/08/2025A1-AA3-D33.0729.4031.2415.1918.2683%0411.3607/08/2025A3-D