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°40.6°39.3°38.8°38.4°38.1°
Beat VMG3.534.304.905.195.325.385.51
52°5.426.487.137.397.507.557.67
60°5.766.787.327.587.717.797.90
75°6.037.007.467.778.038.218.37
90°6.007.147.617.958.168.498.97
110°6.117.267.818.278.689.129.78
120°5.967.167.758.288.839.2910.45
135°5.346.647.457.958.519.1010.71
150°4.535.696.737.407.778.128.95
Run VMG3.924.935.836.416.737.227.98
Gybe Angles144.2°147.4°148.4°150.7°151.1°173.9°175.3°

APH: 530.8

CDL: 9.673

GPH: 594.9

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 Allowance0.093%Age Allowance0.228%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.380m
CREW
Maximum weight740 kgMinimum weight555 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail40.3141.27Headsail Luffed35.4735.47Headsail FlyingSymmetricAsymmetric121.13121.13 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail11.30Storm Jib11.30Heavy Weather Jib30.49
SAIL LIMITS
Headsails5  Spinnakers4 * Asymmetric SHALL NOT be tacked on the pole
STABILITY
Righting Moment128.4 kg·mStability Index120.4
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  04340001WHLIssued on 20/04/2022Valid 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 VMG1020.9837.2734.5693.6677.2669.6653.6
52°664.1555.4505.2486.9480.1476.6469.1
60°625.1530.8491.9474.8466.7462.2455.6
75°597.3514.5482.3463.2448.4438.6429.9
90°599.6504.5472.8453.0441.0424.1401.5
110°589.3495.9461.0435.4414.8394.8368.3
120°604.3502.9464.7435.0407.7387.7344.5
135°674.8541.8483.2452.8423.2395.5336.2
150°795.4632.7535.2486.6463.6443.3402.0
Run VMG918.4730.5617.9561.5535.0498.7451.2
Selected Courses
Windward / Leeward969.7783.9676.2627.6606.1584.2552.4
All purpose744.8612.0545.3512.9494.7478.6452.2
Single Number Scoring Options
CourseTime On DistanceTime On Time
Windward / Leeward657.60.9124
All purpose530.81.1305
 
Custom scoring options for Australia
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Custom scoring options for Austria
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Brazil
Single NumberTime On Time
Upwind "bolina"0.7944
Downwind "popa"0.9737
70% up, 30% down "Ilhabela"0.8409
30% up, 70% down "Ilhabela-inverso"0.9120
Custom scoring options for Bulgaria
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Predominantly Upwind577.41.0392
Predominantly Downwind535.21.1211
Custom scoring options for Canada
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low678.40.8844
Triple Number All Purpose Medium527.41.1377
Triple Number All Purpose High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Predominantly Upwind577.41.0392
Predominantly Downwind535.21.1211
Predominantly Upwind Low767.10.7821
Predominantly Upwind Medium597.31.0046
Predominantly Upwind High556.41.0784
Predominantly Downwind Low730.80.8210
Predominantly Downwind Medium530.91.1301
Predominantly Downwind High449.71.3341
Chicago-Mac Upwind1.0221
Chicago-Mac All Purpose1.0595
Chicago-Mac Downwind1.1038
Bayview-Mac Cove Island0.9846
Bayview-Mac Shore0.9907
Victoria-Maui1.1730
Custom scoring options for Cyprus
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Denmark
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Spain
Single NumberTime On Distance
Coastal/Long Distance578.4
Triple Number Coastal/Long Distance Low678.4
Triple Number Coastal/Long Distance Medium527.4
Triple Number Coastal/Long Distance High472.7
Triple Number Windward/Leeward Low876.8
Triple Number Windward/Leeward Medium651.5
Triple Number Windward/Leeward High577.7
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Estonia
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Finland
Single NumberTime On DistanceTime On Time
FinRating (Coastal/Long Distance)578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for France
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Custom scoring options for Germany
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8844
Triple Number Coastal/Long Distance Medium1.1377
Triple Number Coastal/Long Distance High1.2693
Triple Number Windward/Leeward Low0.6843
Triple Number Windward/Leeward Medium0.9210
Triple Number Windward/Leeward High1.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Greece
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Hungary
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Custom scoring options for Israel
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Italy
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Japan
Single NumberTime On DistanceTime On Time
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Korea
Single NumberTime On Distance
Triple Number Coastal/Long Distance Low678.4
Triple Number Coastal/Long Distance Medium527.4
Triple Number Coastal/Long Distance High472.7
Triple Number Windward/Leeward Low876.8
Triple Number Windward/Leeward Medium651.5
Triple Number Windward/Leeward High577.7
Predominantly Upwind577.4
Predominantly Downwind535.2
Predominantly Reaching512.8
Custom scoring options for Lithuania
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Netherlands
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8844
Triple Number Coastal/Long Distance Medium1.1377
Triple Number Coastal/Long Distance High1.2693
Triple Number Windward/Leeward Low0.6843
Triple Number Windward/Leeward Medium0.9210
Triple Number Windward/Leeward High1.0386
Coastal/Long Distance1.0373
Predominantly Upwind1.0392
Predominantly Downwind1.1211
Custom scoring options for Norway
Single NumberTime On Time
Distanseseilas (NOR-rating ett tall)1.0373
Tretall Distanseseilas Lite vind0.8844
Tretall Distanseseilas Mellomvind1.1377
Tretall Distanseseilas Mye vind1.2693
Tretall Pølsebane Lite vind0.6843
Tretall Pølsebane Mellomvind0.9210
Tretall Pølsebane Mye vind1.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Distanseseilas964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Portugal
Single NumberTime On DistanceTime On Time
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Coastal/Long Distance578.41.0373
Custom scoring options for Russia
Single NumberTime On DistanceTime On Time
Predominantly Upwind577.41.0392
Predominantly Downwind535.21.1211
Custom scoring options for South Africa
Single NumberTime On DistanceTime On Time
Cape Doctor Inshore561.91.0678
Cape Doctor Coastal460.11.3040
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Custom scoring options for Slovenia
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8844
Triple Number Coastal/Long Distance Medium1.1377
Triple Number Coastal/Long Distance High1.2693
Triple Number Windward/Leeward Low0.6843
Triple Number Windward/Leeward Medium0.9210
Triple Number Windward/Leeward High1.0386
Custom scoring options for Switzerland
Single NumberTime On Time
Triple Number Coastal/Long Distance Low0.8844
Triple Number Coastal/Long Distance Medium1.1377
Triple Number Coastal/Long Distance High1.2693
Triple Number Windward/Leeward Low0.6843
Triple Number Windward/Leeward Medium0.9210
Triple Number Windward/Leeward High1.0386
Custom scoring options for Sweden
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Predominantly Upwind577.41.0392
Predominantly Downwind535.21.1211
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for Ukraine
Single NumberTime On DistanceTime On Time
Coastal/Long Distance578.41.0373
Triple Number Coastal/Long Distance Low678.40.8844
Triple Number Coastal/Long Distance Medium527.41.1377
Triple Number Coastal/Long Distance High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance964.6735.6611.7547.1513.9483.9431.0
Custom scoring options for United States of America
Single NumberTime On DistanceTime On Time
Triple Number All Purpose Low678.40.8844
Triple Number All Purpose Medium527.41.1377
Triple Number All Purpose High472.71.2693
Triple Number Windward/Leeward Low876.80.6843
Triple Number Windward/Leeward Medium651.50.9210
Triple Number Windward/Leeward High577.71.0386
Predominantly Upwind577.41.0392
Predominantly Downwind535.21.1211
Predominantly Upwind Low767.10.7821
Predominantly Upwind Medium597.31.0046
Predominantly Upwind High556.41.0784
Predominantly Downwind Low730.80.8210
Predominantly Downwind Medium530.91.1301
Predominantly Downwind High449.71.3341
Chicago-Mac Upwind1.0221
Chicago-Mac All Purpose1.0595
Chicago-Mac Downwind1.1038
Bayview-Mac Cove Island0.9846
Bayview-Mac Shore0.9907
Harvest Moon Regatta466.41.2865
Victoria-Maui1.1730
5-Band
Windward/Leeward		Time On DistanceTime On Time
5-Band Low955.40.6280
5-Band Low / Medium801.20.7489
5-Band Medium641.50.9353
5-Band Medium / High586.21.0235
5-Band High557.91.0755
ORC Ref  04340001WHLIssued on 20/04/2022Valid 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 constructionCoredAramid Hull CoreNoCarbon RudderNoLight stanchionsNoTrim tabNo
LOA11.000Max. Beam3.598Draft2.046Displacement5,183Wetted area25.44IMS L10.077LSM09.855Acc. length11.000Sink (kg/mm) 18.80
VCGD-0.026VCGM-0.067RM Measured (kg·m) 128.4RM Default (kg·m) 128.2Limit of positive stability(°) 121.2Stability Index120.4
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
P13.650IG14.940ISP15.960MDT10.110MDL10.180MDT20.102MDL20.146TL1.460MW0.173GO0.198
E4.730J4.270BAS1.700FSD0.038SFJ0.222SPL4.916WPLTPS5.700BD0.237MWT105.00MCG4.450
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  04340001WHLIssued on 20/04/2022Valid 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.DateMakerMaterialComment3a0.581.261.993.154.0340.3104/04/2022UnknownLight'2120.211.081.843.124.0539.2720/02/2020One sailsUnknownHeavy
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateMakerMaterialComment9a0.330.981.652.693.594.4113.98YesNo 35.4720/04/2022One SailsUnknownJ-1 20218a0.330.971.642.613.524.4513.98YesNo 35.0520/04/2022One SailUnknownJ-2 2021100.050.921.753.204.154.4911.73NoInner 32.6726/07/2021One SailsUnknownStay sail 202111a0.120.581.092.183.294.3413.42YesNo 29.4220/04/2022One SailsUnknownJ-3 2021
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateMakerMaterialComment7a17.6713.9915.839.109.5196%121.1320/04/2022One SailsUnknownA4 202110a17.6614.2015.938.989.4295%120.3820/04/2022One SailsUnknownA2 20219a17.1814.8516.028.809.6891%119.7920/04/2022One SailsUnknownA1 2021817.4114.3715.898.029.3586%109.7226/07/2021One SailsUnknownA36b16.3414.6515.506.507.6985%87.0020/04/2022One SailsUnknownA0 2021
ORC Ref  04340001WHLIssued on 20/04/2022Valid until 31/12/2022
VPP ver: 2022 1.01 | © ORC | www.orc.org