Club
Certificate
Double Handed
2023

Boat

Lidi

ISR 1

IYC
IYC , P.O.Box 3299
Ramat Gan
Israel
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles42.4°40.5°39.4°39.0°39.0°39.4°40.0°
Beat VMG3.974.684.985.115.185.205.15
52°5.996.907.257.417.507.547.49
60°6.287.187.537.687.767.827.84
75°6.487.387.797.998.128.208.29
90°6.677.567.928.178.418.588.79
110°6.487.528.088.498.849.119.55
120°6.167.378.028.508.889.3110.14
135°5.576.877.728.288.839.4210.77
150°4.705.946.987.688.138.539.42
Run VMG4.075.156.056.667.047.488.35
Gybe Angles143.3°146.6°149.8°150.7°150.2°173.0°174.8°

APH: 518.5

CDL: 9.963

GPH: 574.5

CertNo: 23001D

BOAT
ClassX-41DesignerJEPPESENBuilderX YACHTSAge date08/2008Series date01/2006Offset fileX41.OD.offData fileISR1
HULL
Length Overall12.350 mMaximum Beam3.646 mDraft2.502 mDisplacement6,951 kgDLR5.5005IMS DivisionPerformanceDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.450m
CREW
Maximum weight170 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail52.0953.07Headsail Luffed44.7644.76Headsail FlyingSymmetricAsymmetric133.94133.94 (1 asymmetric(s) with SHW/SFL < 85%)
STORM SAIL AREAS (m²)
Trysail15.40Storm Jib14.64Heavy Weather Jib39.52
SAIL LIMITS
Headsails6  Spinnakers5 * Asymmetric SHALL NOT be tacked on the pole
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
based on I4100 ITA
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  04390002B1CIssued on 17/01/2023Valid until 28/02/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Lidi

ISR 1

IYC
IYC , P.O.Box 3299
Ramat Gan
Israel
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG907.6769.1723.5703.9694.8692.0698.6
52°600.7521.6496.7485.8480.2477.3480.4
60°572.9501.2478.2468.7463.6460.6459.4
75°556.0487.9461.9450.3443.4438.9434.0
90°539.6476.1454.8440.5427.8419.5409.5
110°555.2478.6445.7424.1407.5395.4376.8
120°584.5488.6448.7423.6405.4386.5355.0
135°646.8524.1466.5434.7407.6382.0334.1
150°765.2605.6515.7468.5442.7422.0382.2
Run VMG883.6699.2595.5540.6511.1481.2431.1
Selected Courses
Windward / Leeward895.6734.2659.5622.3602.9586.6564.8
All purpose689.1577.8529.9505.1489.8477.8461.1
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward644.30.9313
All purpose518.51.1571
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8093
Downwind "popa"1.0139
70% up, 30% down "Ilhabela"0.8615
30% up, 70% down "Ilhabela-inverso"0.9424
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Predominantly Upwind563.91.0640
Predominantly Downwind516.81.1611
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low633.40.9473
Triple Number All Purpose Medium515.61.1637
Triple Number All Purpose High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Predominantly Upwind563.91.0640
Predominantly Downwind516.81.1611
Predominantly Upwind Low704.50.8516
Predominantly Upwind Medium590.71.0157
Predominantly Upwind High570.91.0509
Predominantly Downwind Low691.70.8674
Predominantly Downwind Medium512.31.1713
Predominantly Downwind High437.81.3706
Chicago-Mac Upwind1.0453
Chicago-Mac All Purpose1.0908
Chicago-Mac Downwind1.1417
Bayview-Mac Cove Island1.0330
Bayview-Mac Shore1.0368
Victoria-Maui1.2209
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance563.5
Triple Number Coastal/Long Distance Low633.4
Triple Number Coastal/Long Distance Medium515.6
Triple Number Coastal/Long Distance High474.5
Triple Number Windward/Leeward Low814.9
Triple Number Windward/Leeward Medium639.2
Triple Number Windward/Leeward High582.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9473
Triple Number Coastal/Long Distance Medium1.1637
Triple Number Coastal/Long Distance High1.2644
Triple Number Windward/Leeward Low0.7363
Triple Number Windward/Leeward Medium0.9387
Triple Number Windward/Leeward High1.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low633.4
Triple Number Coastal/Long Distance Medium515.6
Triple Number Coastal/Long Distance High474.5
Triple Number Windward/Leeward Low814.9
Triple Number Windward/Leeward Medium639.2
Triple Number Windward/Leeward High582.5
Predominantly Upwind563.9
Predominantly Downwind516.8
Predominantly Reaching495.9
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9473
Triple Number Coastal/Long Distance Medium1.1637
Triple Number Coastal/Long Distance High1.2644
Triple Number Windward/Leeward Low0.7363
Triple Number Windward/Leeward Medium0.9387
Triple Number Windward/Leeward High1.0300
Coastal/Long Distance1.0648
Predominantly Upwind1.0640
Predominantly Downwind1.1611
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9473
Tretall Distanseseilas Mellomvind1.1637
Tretall Distanseseilas Mye vind1.2644
Tretall Pølsebane Lite vind0.7363
Tretall Pølsebane Mellomvind0.9387
Tretall Pølsebane Mye vind1.0300
Distanseseilas ett tall (OSN 8-16kn)1.0648
Distanseseilas ett tall (APH 6-20kn)1.1571
Enkeltall Motvind1.0640
Enkeltall Medvind1.1611
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Coastal/Long Distance563.51.0648
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind563.91.0640
Predominantly Downwind516.81.1611
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore571.41.0501
Cape Doctor Coastal466.11.2873
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9473
Triple Number Coastal/Long Distance Medium1.1637
Triple Number Coastal/Long Distance High1.2644
Triple Number Windward/Leeward Low0.7363
Triple Number Windward/Leeward Medium0.9387
Triple Number Windward/Leeward High1.0300
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9473
Triple Number Coastal/Long Distance Medium1.1637
Triple Number Coastal/Long Distance High1.2644
Triple Number Windward/Leeward Low0.7363
Triple Number Windward/Leeward Medium0.9387
Triple Number Windward/Leeward High1.0300
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Predominantly Upwind563.91.0640
Predominantly Downwind516.81.1611
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.51.0648
Triple Number Coastal/Long Distance Low633.40.9473
Triple Number Coastal/Long Distance Medium515.61.1637
Triple Number Coastal/Long Distance High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance894.4690.9595.4540.4509.5482.2436.7
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low633.40.9473
Triple Number All Purpose Medium515.61.1637
Triple Number All Purpose High474.51.2644
Triple Number Windward/Leeward Low814.90.7363
Triple Number Windward/Leeward Medium639.20.9387
Triple Number Windward/Leeward High582.51.0300
Predominantly Upwind563.91.0640
Predominantly Downwind516.81.1611
Predominantly Upwind Low704.50.8516
Predominantly Upwind Medium590.71.0157
Predominantly Upwind High570.91.0509
Predominantly Downwind Low691.70.8674
Predominantly Downwind Medium512.31.1713
Predominantly Downwind High437.81.3706
Chicago-Mac Upwind1.0453
Chicago-Mac All Purpose1.0908
Chicago-Mac Downwind1.1417
Bayview-Mac Cove Island1.0330
Bayview-Mac Shore1.0368
Harvest Moon Regatta447.71.3402
Victoria-Maui1.2209
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy565.31.0615
San Francisco Bay Medium626.70.9574
Predominantly Reaching1.2333
Predominantly Reaching Low1.0495
Predominantly Reaching Medium1.2470
Predominantly Reaching High1.3875
Windward/Leeward 60-40 Low819.60.7321
Windward/Leeward 60-40 Medium664.50.9030
Windward/Leeward 60-40 High620.80.9664
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low883.20.6794
5-Band Low / Medium754.70.7951
5-Band Medium631.60.9500
5-Band Medium / High588.71.0192
5-Band High568.61.0552
ORC Ref  04390002B1CIssued on 17/01/2023Valid until 28/02/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Lidi

ISR 1

IYC
IYC , P.O.Box 3299
Ramat Gan
Israel
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassX-41Measurement31/05/2016HINPlan reviewHull constructionCoredCarbon RudderNoLight stanchionsNoTrim tabNo
LOA12.350Max. Beam3.646Draft2.502Displacement6,951Wetted area30.90IMS L10.926LSM010.811Acc. length11.850Sink (kg/mm) 23.11
VCGD0.023VCGM0.001RM Rated (kg·m) 185.5Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.450PBW0.118PIPA0.0040
EDL1.890ST10.065ST20.180
ST30.170ST40.112ST50.320
RIG
Forestay tensionAftInner stayNone FittedCarbon mastYesHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders2Rotating mastNo
P16.080IG17.040ISP18.200MDT10.130MDL10.255MDT20.121MDL20.200TL0.930MW0.255GO0.275
E5.470J4.915BAS1.870FSD0.038SFJ0.285SPL5.018WPLTPS6.315BD0.200MWT202.00MCG5.515
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date25/05/2015Measurer120CommentCONDIZIONI OTTIME
SFFP0.200FFMFF1.442LCFcl6.924SG1.0290
SAFP11.995FAMFA1.092LCFsh7.144HBI1.206
W1114.0W2114.0W3114.0W4114.0
PD1603.2PD2597.6PD3609.1PD4600.9
WD12.400PLM9000.00GSA1.0RSA1.0RM184.7
TANKS
INVENTORY
INVENTORY
BALLASTIdKindDescriptionWeightLCGVCGTCGAFixedN.2 PANI PIOMBO FISSATI A MURATA405.700.00BFixedN.4 PANI PIOMBO FISSATI SENTINA605.000.00Fixed Ballast Total100
TANKSIdDescriptionSp.WghtCapacityConditionLCGVCGAGASOLIO INOX VUOTO0.900090105.900.00BACQUA PVC VUOTO18005.900.00Total deductible95.900.00
OTHER ITEMSIdKindDescriptionWeightLCGVCGABattery2 BATTERIE704.700.00AEngineVOLVO 40 HPTotal deductible0
ORC Ref  04390002B1CIssued on 17/01/2023Valid until 28/02/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Lidi

ISR 1

IYC
IYC , P.O.Box 3299
Ramat Gan
Israel
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentM20.211.142.043.514.5652.0923/12/2020
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentC0.130.771.432.713.955.2016.71NoNo 44.7623/12/2020
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA1.519.4116.8818.158.948.53105%133.9409/09/2020Code0 75%18.4516.7617.616.017.9276%93.7808/09/2018Email Zoran
ORC Ref  04390002B1CIssued on 17/01/2023Valid until 28/02/2024
VPP ver: 2023 1.00 | © ORC | www.orc.org