International
Certificate
2022

Boat

Matilda 4

EST-112

Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.2°41.8°40.8°39.3°38.8°38.7°38.2°
Beat VMG3.494.264.865.175.305.365.49
52°5.376.427.097.387.497.547.65
60°5.706.737.297.567.707.787.88
75°5.966.957.447.758.008.208.37
90°5.997.137.567.788.118.458.95
110°6.127.277.828.268.568.849.35
120°5.987.187.778.308.849.269.97
135°5.346.687.487.988.559.1610.80
150°4.535.696.757.427.798.159.21
Run VMG3.924.935.846.436.747.217.98
Gybe Angles144.2°147.5°148.3°150.5°150.7°173.0°142.1°

APH: 532.3

CDL: 9.635

GPH: 596.8

CertNo: 250/21

BOAT
ClassJ-112EDesignerJOHNSTONEBuilderJ-BOATSAge date07/2019Series date10/2015Offset fileJ112-EST112.offData fileEST112
HULL
Length Overall11.000 mMaximum Beam3.598 mDraft2.046 mDisplacement5,183 kgDLR5.4143IMS DivisionCruiser/RacerDynamic Allowance0.137%Age Allowance0.228%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight710 kgMinimum weight533 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail38.6639.38Headsail Luffed35.1135.11Headsail FlyingSymmetricAsymmetric127.44127.44 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail11.28Storm Jib11.30Heavy Weather Jib30.49
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric SHALL NOT be tacked on the pole
STABILITY
Righting Moment128.4 kg·mStability Index120.6
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  043400027NLIssued on 28/07/2022Valid until 31/12/2022
VPP ver: 2022 1.01 | © ORC | www.orc.org

International
Certificate
2022

Boat

Matilda 4

EST-112

Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1032.7845.7740.3696.1679.1671.4655.2
52°671.0560.7507.8488.1480.9477.2470.5
60°631.5535.0494.1476.1467.3462.7457.1
75°603.8517.9484.2464.8449.7439.2430.3
90°600.5504.9476.5462.5443.7426.1402.4
110°588.3495.2460.5435.8420.4407.2384.8
120°601.9501.4463.6433.7407.1388.9361.2
135°674.5539.2481.4451.0421.2393.2333.2
150°794.9632.4533.6485.0462.4441.9390.7
Run VMG917.8730.2616.2559.5533.7499.3451.2
Selected Courses
Windward / Leeward975.3788.0678.3627.8606.4585.4553.2
All purpose748.5614.4546.8514.1495.6480.2453.5
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward659.00.9104
All purpose532.31.1273
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.7894
Downwind "popa"0.9749
70% up, 30% down "Ilhabela"0.8372
30% up, 70% down "Ilhabela-inverso"0.9107
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Predominantly Upwind579.91.0347
Predominantly Downwind535.61.1203
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low681.40.8805
Triple Number All Purpose Medium528.71.1348
Triple Number All Purpose High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Predominantly Upwind579.91.0347
Predominantly Downwind535.61.1203
Predominantly Upwind Low773.00.7762
Predominantly Upwind Medium600.40.9994
Predominantly Upwind High557.71.0759
Predominantly Downwind Low732.00.8197
Predominantly Downwind Medium530.31.1314
Predominantly Downwind High449.21.3356
Chicago-Mac Upwind1.0174
Chicago-Mac All Purpose1.0561
Chicago-Mac Downwind1.1031
Bayview-Mac Cove Island0.9800
Bayview-Mac Shore0.9852
Victoria-Maui1.1727
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance580.1
Triple Number Coastal/Long Distance Low681.4
Triple Number Coastal/Long Distance Medium528.7
Triple Number Coastal/Long Distance High474.0
Triple Number Windward/Leeward Low881.6
Triple Number Windward/Leeward Medium652.6
Triple Number Windward/Leeward High578.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8805
Triple Number Coastal/Long Distance Medium1.1348
Triple Number Coastal/Long Distance High1.2657
Triple Number Windward/Leeward Low0.6806
Triple Number Windward/Leeward Medium0.9194
Triple Number Windward/Leeward High1.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low681.4
Triple Number Coastal/Long Distance Medium528.7
Triple Number Coastal/Long Distance High474.0
Triple Number Windward/Leeward Low881.6
Triple Number Windward/Leeward Medium652.6
Triple Number Windward/Leeward High578.5
Predominantly Upwind579.9
Predominantly Downwind535.6
Predominantly Reaching514.3
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8805
Triple Number Coastal/Long Distance Medium1.1348
Triple Number Coastal/Long Distance High1.2657
Triple Number Windward/Leeward Low0.6806
Triple Number Windward/Leeward Medium0.9194
Triple Number Windward/Leeward High1.0371
Coastal/Long Distance1.0344
Predominantly Upwind1.0347
Predominantly Downwind1.1203
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)1.0344
Tretall Distanseseilas Lite vind0.8805
Tretall Distanseseilas Mellomvind1.1348
Tretall Distanseseilas Mye vind1.2657
Tretall Pølsebane Lite vind0.6806
Tretall Pølsebane Mellomvind0.9194
Tretall Pølsebane Mye vind1.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Coastal/Long Distance580.11.0344
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind579.91.0347
Predominantly Downwind535.61.1203
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore562.81.0660
Cape Doctor Coastal461.51.3000
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8805
Triple Number Coastal/Long Distance Medium1.1348
Triple Number Coastal/Long Distance High1.2657
Triple Number Windward/Leeward Low0.6806
Triple Number Windward/Leeward Medium0.9194
Triple Number Windward/Leeward High1.0371
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8805
Triple Number Coastal/Long Distance Medium1.1348
Triple Number Coastal/Long Distance High1.2657
Triple Number Windward/Leeward Low0.6806
Triple Number Windward/Leeward Medium0.9194
Triple Number Windward/Leeward High1.0371
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Predominantly Upwind579.91.0347
Predominantly Downwind535.61.1203
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance580.11.0344
Triple Number Coastal/Long Distance Low681.40.8805
Triple Number Coastal/Long Distance Medium528.71.1348
Triple Number Coastal/Long Distance High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance969.5739.1613.4548.2514.3484.7434.8
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low681.40.8805
Triple Number All Purpose Medium528.71.1348
Triple Number All Purpose High474.01.2657
Triple Number Windward/Leeward Low881.60.6806
Triple Number Windward/Leeward Medium652.60.9194
Triple Number Windward/Leeward High578.51.0371
Predominantly Upwind579.91.0347
Predominantly Downwind535.61.1203
Predominantly Upwind Low773.00.7762
Predominantly Upwind Medium600.40.9994
Predominantly Upwind High557.71.0759
Predominantly Downwind Low732.00.8197
Predominantly Downwind Medium530.31.1314
Predominantly Downwind High449.21.3356
Chicago-Mac Upwind1.0174
Chicago-Mac All Purpose1.0561
Chicago-Mac Downwind1.1031
Bayview-Mac Cove Island0.9800
Bayview-Mac Shore0.9852
Harvest Moon Regatta468.21.2816
Victoria-Maui1.1727
5-Band
Windward/Leeward		Time On DistanceTime On Time
5-Band Low960.80.6245
5-Band Low / Medium805.00.7454
5-Band Medium642.50.9339
5-Band Medium / High587.11.0220
5-Band High558.81.0738
ORC Ref  043400027NLIssued on 28/07/2022Valid until 31/12/2022
VPP ver: 2022 1.01 | © ORC | www.orc.org

International
Certificate
2022

Boat

Matilda 4

EST-112

Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-112EMeasurementHINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA11.000Max. Beam3.598Draft2.046Displacement5,183Wetted area25.44IMS L10.067LSM09.855Acc. length11.000Sink (kg/mm) 18.80
VCGD-0.026VCGM-0.067RM Measured (kg·m) 128.4RM Default (kg·m) 126.6Limit of positive stability(°) 121.5Stability Index120.6
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.380PBW0.100PIPA0.0031
EDL2.130ST10.065ST20.180
ST30.180ST40.090ST50.300
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingYesRunners/Checkstays0Spreaders2
P13.680IG14.940ISP15.960MDT10.110MDL10.180MDT20.102MDL20.146TL1.460MW0.173GO0.198
E4.710J4.270BAS1.700FSD0.038SFJ0.222SPL4.916WPLTPS5.760BD0.237MWT105.00MCG4.450
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date12/08/2021MeasurerCommentWC 2021/TALLIN
SFFP0.488FFM1.323FF1.330LCFcl5.891SG1.0000
SAFP10.805FAM1.031FA1.039LCFsh6.156HBI1.139
W176.0W276.0W376.0W476.0
PD1589.5PD2592.8PD3591.4PD4593.4
WD12.700PLM9000.00GSA1.0RSA1.0
TANKS
INVENTORY
INVENTORY
BALLASTIdKindDescriptionWeightLCGVCGTCG8FixedLot of pieces1004.277FixedLot of pieces1505.776Fixed6pcs (18+17+8+17+12,5+12,5)855.225Fixed2pcs (17+17kg) centerline344.724Fixed3pcs (25+18+17kg) portside605.223Fixed15kg portside154.672Fixed2pcs (16+18kg) portside344.271Fixed2pcs (16+17kg) centerline333.62Fixed Ballast Total511
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCG2Fuel plastic Starport aft cabin0.900080128.271Water Neopren bag At the bow10002.00Total deductible118.27
OTHER ITEMSIdKindDescriptionWeightLCGVCG2MiscellaneousAutopilot10.001MiscellaneousAir heater, port aft cabin8.271Battery2x165ah starport side4.731EngineVolvo Penta D1-20Total deductible
ORC Ref  043400027NLIssued on 28/07/2022Valid until 31/12/2022
VPP ver: 2022 1.01 | © ORC | www.orc.org

International
Certificate
2022

Boat

Matilda 4

EST-112

Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateMakerMaterialComment40.581.181.822.953.9038.6627/07/2022ONeSailsUnknown'22
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialComment130.330.951.612.603.534.4714.03YesNo 35.1127/07/2022OneSailsUnknownJ2 '22120.100.951.582.653.584.4514.02YesNo 35.1127/07/2022OneSailsUnknownJ1 '22100.050.921.753.204.154.4911.73NoInner 32.6726/07/2021One SailsUnknownStay sail 2021140.360.801.342.373.384.3413.03YesNo 30.4327/07/2022OneSailsUnknownJ3 '22
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateMakerMaterialComment1118.1614.2216.199.588.91108%127.4427/07/2022OneSailsUnknownA2 '221217.4614.7916.139.459.45100%126.9827/07/2022OneSailsUnknownA1 '227b17.5713.9615.779.119.4796%120.6315/07/2022One SailsUnknownA4 20218a17.2814.2115.758.089.2388%109.0327/07/2022One SailsUnknownA3
ORC Ref  043400027NLIssued on 28/07/2022Valid until 31/12/2022
VPP ver: 2022 1.01 | © ORC | www.orc.org