Club Certificate2025
ESCOLA DE VELAESP-4103_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
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 Angles44.8°44.8°43.0°41.9°41.4°41.7°41.9°44.0°46.7°
Beat VMG1.772.412.913.253.483.653.703.633.48
52°2.763.734.434.875.135.335.462.873.55
60°2.953.954.645.045.305.545.735.825.83
75°3.084.114.795.195.485.766.046.386.53
90°3.014.104.905.375.756.126.456.827.38
110°2.974.064.855.335.726.106.537.829.77
120°2.803.884.715.225.605.976.377.5410.73
135°2.433.454.324.975.385.756.127.069.01
150°2.073.023.894.605.125.485.836.607.74
Run VMG1.792.623.394.084.675.125.456.126.92
Gybe Angles151.3°151.3°156.1°163.6°169.1°178.1°178.6°178.6°173.9°
APH ToD:768.4CDL: 4.524APH ToT: 0.7809CertNo:410301
BOAT
ClassMICRO CHALLLENGER 18DesignerJacques GaubertBuilderCN AzuréenAge date01/1978Series date01/1974Offset fileE166.BOFData fileE4103_C
HULL
Length Overall5.500 mMaximum Beam2.378 mDraft1.040 mDisplacement497 kgDLR5.6531IMS DivisionPerformanceDynamic Allowance0.310%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight215 kg(declared)Minimum weight130 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail9.379.55Headsail Luffed7.107.10Headsail FlyingSymmetric12.5612.55Asymmetric
STORM SAIL AREAS (m²)
Trysail2.89Storm Jib1.38Heavy Weather Jib3.73
SAIL LIMITS
Headsails5Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
CASCO ESTIMADO. PESADO 1 DINA.2025
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.
Club Certificate2025
ESCOLA DE VELAESP-4103_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
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 VMG2038.61491.31239.01109.11035.3986.5973.7991.51034.3
52°1304.7964.8812.7739.4701.4675.0659.91253.31014.1
60°1219.4910.3775.6713.7679.0650.0628.8619.0617.5
75°1170.1876.9750.9693.9657.2624.6596.2564.6551.3
90°1197.2877.4734.5671.0626.1588.4557.7527.8487.8
110°1213.2887.6741.5675.6629.7589.9551.2460.5368.6
120°1286.7928.3763.8689.1643.1602.8564.9477.7335.6
135°1480.51043.1832.8724.8669.2626.3588.5510.2399.8
150°1736.61192.6926.4782.8703.8656.9617.1545.6464.9
Run VMG2012.91376.01061.6882.3770.8703.5660.1588.7520.3
Selected Courses
Windward / Leeward2022.11433.61150.3995.7903.0845.0816.9790.1777.3
All purpose1534.51105.1903.9801.5741.0698.7670.8666.3609.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward947.00.6336
All purpose768.40.7809
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5366
Downwind "popa"0.6950
70% up, 30% down "Ilhabela"0.5760
30% up, 70% down "Ilhabela-inverso"0.6385
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Predominantly Upwind838.30.7157
Predominantly Downwind771.00.7782
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low1004.50.5973
Triple Number AP Medium764.20.7851
Triple Number AP High676.10.8875
Triple Number Windward/Leeward Low1349.90.4445
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Single Number Predominant Upwind892.10.6725
Single Number Predominant Reaching766.50.7828
Single Number Predominant Downwind811.90.7390
Predominant Upwind - Low1220.60.4916
Predominant Upwind - Low/Med929.50.6455
Predominant Upwind - Medium810.00.7407
Predominant Upwind - Med/High778.70.7706
Predominant Upwind - High877.40.6839
Predominant Downwind Low1214.80.4939
Predominant Downwind Low/Med883.90.6788
Predominant Downwind Medium741.00.8097
Predominant Downwind Med/High660.50.9083
Predominant Downwind High640.70.9365
Predominant Reaching Low1082.00.5545
Predominant Reaching Low/Med815.80.7354
Predominant Reaching Medium704.60.8515
Predominant Reaching Med/High649.20.9242
Predominant Reaching High667.70.8987
SA/DSPL Upwind26.32SA/DSPL Downwind35.03
Scoring OptionTODTOT
5-Band Windward/Leeward Low1510.80.3971
5-Band Windward/Leeward Low/Med1101.00.5449
5-Band Windward/Leeward Medium922.10.6507
5-Band Windward/Leeward Med/High824.30.7279
5-Band Windward/Leeward High792.50.7571
Windward/Leeward 60-40 Low1521.70.3943
Windward/Leeward 60-40 Low/Med1120.90.5353
Windward/Leeward 60-40 Medium947.90.6330
Windward/Leeward 60-40 Med/High856.20.7008
Windward/Leeward 60-40 High833.20.7201
5-Band AP Low1109.90.5406
5-Band AP Low/Med873.40.6870
5-Band AP Medium751.60.7983
5-Band AP Med/High680.80.8814
5-Band AP High657.30.9128
5-Band SF Bay Tour - Low1306.40.4593
5-Band SF Bay Tour - Low/Med1059.80.5661
5-Band SF Bay Tour - Medium897.90.6683
5-Band SF Bay Tour - Med/High809.90.7408
5-Band SF Bay Tour - High783.00.7663
Chicago-Mac Upwind0.6552
Chicago-Mac All Purpose0.6868
Chicago-Mac Downwind0.7120
Bayview-Mac Cove Island0.4986
Bayview-Mac Shore0.5024
Harvest Moon Regatta645.70.9292
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance835.3
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating835.30.7183
FinRating, kevyt tuuli1483.20.6742
FinRating, kova tuuli630.10.7935
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.7183
Triple Number Coastal/Long Distance Low0.5973
Triple Number Coastal/Long Distance Medium0.7852
Triple Number Coastal/Long Distance High0.8875
Triple Number Windward/Leeward Low0.4644
Triple Number Windward/Leeward Medium0.6383
Triple Number Windward/Leeward High0.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
For information
General Purpose Handicap (GPH)865.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low1004.5
Triple Number Coastal/Long Distance Medium764.1
Triple Number Coastal/Long Distance High676.1
Triple Number Windward/Leeward Low1292.0
Triple Number Windward/Leeward Medium940.0
Triple Number Windward/Leeward High813.9
Predominantly Upwind838.3
Predominantly Downwind771.0
Predominantly Reaching738.4
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.5973
Triple Number Coastal/Long Distance Medium0.7852
Triple Number Coastal/Long Distance High0.8875
Triple Number Windward/Leeward Low0.4644
Triple Number Windward/Leeward Medium0.6383
Triple Number Windward/Leeward High0.7372
Coastal/Long Distance0.7183
Predominantly Upwind0.7157
Predominantly Downwind0.7782
For information
General Purpose Handicap (GPH)865.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.7809
Distanseseilas Trippeltall svak vind0.5973
Distanseseilas Trippeltall mellomvind0.7852
Distanseseilas Trippeltall sterk vind0.8875
Pølsebane Trippeltall svak vind0.4644
Pølsebane Trippeltall mellomvind0.6383
Pølsebane Trippeltall sterk vind0.7372
Motvind Singeltall0.7157
Medvind Singeltall0.7782
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Coastal/Long Distance835.30.7183
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind838.30.7157
Predominantly Downwind771.00.7782
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore781.10.7681
Cape Doctor Coastal626.80.9572
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.5973
Triple Number Coastal/Long Distance Medium0.7852
Triple Number Coastal/Long Distance High0.8875
Triple Number Windward/Leeward Low0.4644
Triple Number Windward/Leeward Medium0.6383
Triple Number Windward/Leeward High0.7372
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.5973
Triple Number Coastal/Long Distance Medium0.7852
Triple Number Coastal/Long Distance High0.8875
Triple Number Windward/Leeward Low0.4644
Triple Number Windward/Leeward Medium0.6383
Triple Number Windward/Leeward High0.7372
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Predominantly Upwind838.30.7157
Predominantly Downwind771.00.7782
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance835.30.7183
Triple Number Coastal/Long Distance Low1004.50.5973
Triple Number Coastal/Long Distance Medium764.10.7852
Triple Number Coastal/Long Distance High676.10.8875
Triple Number Windward/Leeward Low1292.00.4644
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance2143.11427.91080.3899.7792.7725.9675.7592.3537.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low1004.50.5973
Triple Number AP Medium764.20.7851
Triple Number AP High676.10.8875
Triple Number Windward/Leeward Low1349.90.4445
Triple Number Windward/Leeward Medium940.00.6383
Triple Number Windward/Leeward High813.90.7372
Single Number Predominant Upwind892.10.6725
Single Number Predominant Reaching766.50.7828
Single Number Predominant Downwind811.90.7390
Predominant Upwind - Low1220.60.4916
Predominant Upwind - Low/Med929.50.6455
Predominant Upwind - Medium810.00.7407
Predominant Upwind - Med/High778.70.7706
Predominant Upwind - High877.40.6839
Predominant Downwind Low1214.80.4939
Predominant Downwind Low/Med883.90.6788
Predominant Downwind Medium741.00.8097
Predominant Downwind Med/High660.50.9083
Predominant Downwind High640.70.9365
Predominant Reaching Low1082.00.5545
Predominant Reaching Low/Med815.80.7354
Predominant Reaching Medium704.60.8515
Predominant Reaching Med/High649.20.9242
Predominant Reaching High667.70.8987
SA/DSPL Upwind26.32SA/DSPL Downwind35.03
Scoring OptionTODTOT
5-Band Windward/Leeward Low1510.80.3971
5-Band Windward/Leeward Low/Med1101.00.5449
5-Band Windward/Leeward Medium922.10.6507
5-Band Windward/Leeward Med/High824.30.7279
5-Band Windward/Leeward High792.50.7571
Windward/Leeward 60-40 Low1521.70.3943
Windward/Leeward 60-40 Low/Med1120.90.5353
Windward/Leeward 60-40 Medium947.90.6330
Windward/Leeward 60-40 Med/High856.20.7008
Windward/Leeward 60-40 High833.20.7201
5-Band AP Low1109.90.5406
5-Band AP Low/Med873.40.6870
5-Band AP Medium751.60.7983
5-Band AP Med/High680.80.8814
5-Band AP High657.30.9128
5-Band SF Bay Tour - Low1306.40.4593
5-Band SF Bay Tour - Low/Med1059.80.5661
5-Band SF Bay Tour - Medium897.90.6683
5-Band SF Bay Tour - Med/High809.90.7408
5-Band SF Bay Tour - High783.00.7663
Chicago-Mac Upwind0.6552
Chicago-Mac All Purpose0.6868
Chicago-Mac Downwind0.7120
Bayview-Mac Cove Island0.4986
Bayview-Mac Shore0.5024
Harvest Moon Regatta645.70.9292
Club Certificate2025
ESCOLA DE VELAESP-4103_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassMICRO CHALLLENGER 18Measurement09/04/2025HINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA5.500Max. Beam2.378Draft1.040Displacement497Wetted area6.84IMS L4.888LSM04.446Acc. length5.499Sink (kg/mm) 5.55
VCGD0.022VCGM0.075RM Rated (kg·m) 11.9Limit of positive stability(°) N/AStability IndexN/ADefault crew weight217Declared crew weight215
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders1Rotating mastNo
P6.420IG5.250ISP5.610MDT10.065MDL10.070MDT2MDL2TLTaperMWGO
E2.570J1.620BAS0.750FSD0.000SFJ0.570SPL1.700WPLTPS0.000BD0.065MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
ESCOLA DE VELAESP-4103_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.110.480.861.542.109.3709/04/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment10.050.350.661.332.042.735.24NoNo 7.1009/04/2025
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment15.405.405.402.772.8712.5609/04/2025