Club
Certificate
2023

Boat

KRONOS

ESP-4889_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles42.4°40.6°39.4°38.4°37.6°37.2°37.1°
Beat VMG3.754.484.975.255.395.485.56
52°5.676.607.127.387.537.617.70
60°5.946.827.297.547.707.807.90
75°6.126.977.417.687.898.048.24
90°6.016.917.417.727.958.168.49
110°5.756.897.527.908.208.458.76
120°5.636.797.477.888.228.549.08
135°5.126.317.167.668.038.389.08
150°4.315.466.457.207.668.018.67
Run VMG3.734.735.596.336.927.438.12
Gybe Angles144.2°148.7°151.4°156.8°166.4°177.2°179.0°

APH: 537.3

CDL: 10.043

GPH: 600.8

CertNo: 488901

BOAT
ClassFIRST 42DesignerG. FRERSBuilderBENETEAUAge date01/1982Series date01/1981Offset fileFIRST42.offData fileE4889_C
HULL
Length Overall12.785 mMaximum Beam3.982 mDraft2.244 mDisplacement9,751 kgDLR8.3527IMS DivisionCruiser/RacerDynamic Allowance0.220%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 3 bladesDiameter0.483m
CREW
Maximum weight450 kgMinimum weight338 kg * when appliedNon Manual PowerYesCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail41.0641.69Headsail Luffed63.2763.27Headsail FlyingSymmetric139.85139.85Asymmetric
STORM SAIL AREAS (m²)
Trysail11.75Storm Jib14.47Heavy Weather Jib39.07
SAIL LIMITS
Headsails1 * Woven polyester sails  Spinnakers5
STABILITY
Righting MomentN/AStability IndexN/A
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  03510002F3EIssued on 31/03/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

KRONOS

ESP-4889_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG959.2802.8723.7685.8667.4657.1647.2
52°634.6545.7505.9487.5478.4473.0467.8
60°605.7527.5494.0477.2467.4461.8455.5
75°588.2516.9485.9468.5456.4447.5436.7
90°599.3520.9485.9466.5452.6441.2423.8
110°626.0522.3478.8455.9439.1426.0410.9
120°639.5530.3482.0456.8437.7421.6396.4
135°703.8570.6502.8469.9448.2429.6396.4
150°835.3659.3558.0500.1470.2449.5415.0
Run VMG964.6761.3643.6568.5520.3484.8443.4
Selected Courses
Windward / Leeward961.9782.1683.7627.1593.9570.9545.3
All purpose743.9617.8554.1519.6499.1484.8465.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward654.30.9170
All purpose537.31.1168
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8166
Downwind "popa"0.9575
70% up, 30% down "Ilhabela"0.8543
30% up, 70% down "Ilhabela-inverso"0.9104
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Predominantly Upwind576.71.0404
Predominantly Downwind547.21.0964
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low680.90.8812
Triple Number All Purpose Medium534.11.1233
Triple Number All Purpose High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Predominantly Upwind576.71.0404
Predominantly Downwind547.21.0964
Predominantly Upwind Low748.30.8018
Predominantly Upwind Medium593.71.0107
Predominantly Upwind High554.41.0822
Predominantly Downwind Low749.00.8011
Predominantly Downwind Medium544.11.1027
Predominantly Downwind High459.51.3057
Chicago-Mac Upwind1.0226
Chicago-Mac All Purpose1.0464
Chicago-Mac Downwind1.0775
Bayview-Mac Cove Island0.9776
Bayview-Mac Shore0.9875
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching513.11.1693
Predominantly Reaching Low619.00.9693
Predominantly Reaching Medium508.41.1801
Predominantly Reaching High454.41.3205
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low948.00.6329
5-Band Low / Medium799.60.7504
5-Band Medium639.20.9387
5-Band Medium / High575.21.0431
5-Band High549.71.0915
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance583.3
Triple Number Coastal/Long Distance Low680.9
Triple Number Coastal/Long Distance Medium534.1
Triple Number Coastal/Long Distance High481.2
Triple Number Windward/Leeward Low872.0
Triple Number Windward/Leeward Medium650.5
Triple Number Windward/Leeward High567.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8812
Triple Number Coastal/Long Distance Medium1.1233
Triple Number Coastal/Long Distance High1.2468
Triple Number Windward/Leeward Low0.6881
Triple Number Windward/Leeward Medium0.9223
Triple Number Windward/Leeward High1.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low680.9
Triple Number Coastal/Long Distance Medium534.1
Triple Number Coastal/Long Distance High481.2
Triple Number Windward/Leeward Low872.0
Triple Number Windward/Leeward Medium650.5
Triple Number Windward/Leeward High567.1
Predominantly Upwind576.7
Predominantly Downwind547.2
Predominantly Reaching525.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8812
Triple Number Coastal/Long Distance Medium1.1233
Triple Number Coastal/Long Distance High1.2468
Triple Number Windward/Leeward Low0.6881
Triple Number Windward/Leeward Medium0.9223
Triple Number Windward/Leeward High1.0581
Coastal/Long Distance1.0286
Predominantly Upwind1.0404
Predominantly Downwind1.0964
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8812
Tretall Distanseseilas Mellomvind1.1233
Tretall Distanseseilas Mye vind1.2468
Tretall Pølsebane Lite vind0.6881
Tretall Pølsebane Mellomvind0.9223
Tretall Pølsebane Mye vind1.0581
Distanseseilas ett tall (OSN 8-16kn)1.0286
Distanseseilas ett tall (APH 6-20kn)1.1168
Enkeltall Motvind1.0404
Enkeltall Medvind1.0964
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Coastal/Long Distance583.31.0286
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind576.71.0404
Predominantly Downwind547.21.0964
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore553.01.0850
Cape Doctor Coastal471.41.2727
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8812
Triple Number Coastal/Long Distance Medium1.1233
Triple Number Coastal/Long Distance High1.2468
Triple Number Windward/Leeward Low0.6881
Triple Number Windward/Leeward Medium0.9223
Triple Number Windward/Leeward High1.0581
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8812
Triple Number Coastal/Long Distance Medium1.1233
Triple Number Coastal/Long Distance High1.2468
Triple Number Windward/Leeward Low0.6881
Triple Number Windward/Leeward Medium0.9223
Triple Number Windward/Leeward High1.0581
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Predominantly Upwind576.71.0404
Predominantly Downwind547.21.0964
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance583.31.0286
Triple Number Coastal/Long Distance Low680.90.8812
Triple Number Coastal/Long Distance Medium534.11.1233
Triple Number Coastal/Long Distance High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance962.2737.6620.1552.8517.4490.2448.3
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low680.90.8812
Triple Number All Purpose Medium534.11.1233
Triple Number All Purpose High481.21.2468
Triple Number Windward/Leeward Low872.00.6881
Triple Number Windward/Leeward Medium650.50.9223
Triple Number Windward/Leeward High567.11.0581
Predominantly Upwind576.71.0404
Predominantly Downwind547.21.0964
Predominantly Upwind Low748.30.8018
Predominantly Upwind Medium593.71.0107
Predominantly Upwind High554.41.0822
Predominantly Downwind Low749.00.8011
Predominantly Downwind Medium544.11.1027
Predominantly Downwind High459.51.3057
Chicago-Mac Upwind1.0226
Chicago-Mac All Purpose1.0464
Chicago-Mac Downwind1.0775
Bayview-Mac Cove Island0.9776
Bayview-Mac Shore0.9875
Harvest Moon Regatta473.21.2680
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy557.71.0759
San Francisco Bay Medium643.80.9319
Predominantly Reaching513.11.1693
Predominantly Reaching Low619.00.9693
Predominantly Reaching Medium508.41.1801
Predominantly Reaching High454.41.3205
Windward/Leeward 60-40 Low873.80.6867
Windward/Leeward 60-40 Medium668.60.8974
Windward/Leeward 60-40 High597.31.0045
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low948.00.6329
5-Band Low / Medium799.60.7504
5-Band Medium639.20.9387
5-Band Medium / High575.21.0431
5-Band High549.71.0915
ORC Ref  03510002F3EIssued on 31/03/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

KRONOS

ESP-4889_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFIRST 42MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA12.785Max. Beam3.982Draft2.244Displacement9,751Wetted area33.69IMS L10.603LSM010.528Acc. length12.800Sink (kg/mm) 24.02
VCGD-0.232VCGM-0.256RM Rated (kg·m) 257.4Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.483PBWPIPA0.0034
PSD0.025PHD0.060PHL0.010
PSA18.0°ESL0.835
ST10.025ST20.100ST30.105
ST40.010ST50.100
RIG
Forestay tensionAftInner stayAdjustableCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays1Spreaders2Rotating mastNo
P15.250IG17.010ISP17.100MDT10.100MDL10.110MDT2MDL2TLMWGO
E4.400J5.100BAS1.700FSD0.050SFJSPL5.500WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered260.0Flotation Date01/01/2010MeasurerComment
SFFP0.600FFMFF1.387LCFcl6.979SG
SAFP11.980FAMFA0.991LCFsh7.255HBI1.172
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03510002F3EIssued on 31/03/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
2023

Boat

KRONOS

ESP-4889_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment0010.931.722.943.8241.0601/03/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment0017.00NoNo 63.27
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment0010.00139.85
ORC Ref  03510002F3EIssued on 31/03/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org