Club
Certificate
2024

Boat

YA ANDARA

ESP-3423_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 24 kt
Beat Angles44.6°42.4°40.8°39.5°39.4°39.4°40.7°43.4°
Beat VMG2.913.553.994.284.384.414.324.08
52°4.495.325.846.136.286.336.336.20
60°4.745.566.026.306.476.556.596.53
75°4.905.726.176.466.696.887.067.10
90°4.795.736.286.616.847.037.437.64
110°4.825.816.386.787.177.518.028.37
120°4.655.676.296.707.107.498.349.22
135°4.145.165.956.426.827.228.129.63
150°3.514.525.386.046.466.837.598.58
Run VMG3.043.924.685.355.916.347.047.77
Gybe Angles146.7°150.5°153.7°160.6°174.1°178.1°178.1°177.5°
APH ToD:647.1CDL: 6.853APH ToT: 0.9272CertNo:342302
BOAT
ClassFIRST 265DesignerFINOTBuilderBENETEAUAge date01/1992Series date01/1991Offset fileE202.OFFData fileE3423_C
HULL
Length Overall7.920 mMaximum Beam2.904 mDraft1.462 mDisplacement2,128 kgDLR5.4563IMS DivisionCruiser/RacerDynamic Allowance0.300%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.385m
CREW
Maximum weight310 kg(declared)Minimum weight180 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail18.1818.51Headsail Luffed19.9219.92Headsail FlyingSymmetric41.5941.59Asymmetric
STORM SAIL AREAS (m²)
Trysail5.47Storm Jib4.49Heavy Weather Jib12.12
SAIL LIMITS
Headsails5  Spinnakers4
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.

Club
Certificate
2024

Boat

YA ANDARA

ESP-3423_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 24 kt
Beat VMG1237.21015.5901.5841.5821.2816.3832.9882.9
52°802.2676.8616.9587.2573.2568.5568.9581.1
60°758.9648.0597.8571.7556.6549.4546.3551.6
75°735.3629.7583.3557.3537.7523.1510.1507.0
90°751.0628.3573.0544.4526.3512.4484.3470.9
110°747.0619.1564.5530.8502.4479.2449.0430.1
120°774.0635.1572.3537.3507.2480.7431.6390.6
135°869.3698.2605.3560.4528.0498.7443.4373.8
150°1025.0796.2669.1596.4557.3527.2474.3419.5
Run VMG1183.6919.1769.8673.3609.1567.9511.5463.5
Selected Courses
Windward / Leeward1210.4967.3835.6757.4715.1692.1672.2673.2
All purpose929.6758.1670.8621.8594.0576.2554.1544.2
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward797.40.7524
All purpose647.10.9272
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6496
Downwind "popa"0.8024
70% up, 30% down "Ilhabela"0.6889
30% up, 70% down "Ilhabela-inverso"0.7495
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Predominantly Upwind702.80.8537
Predominantly Downwind656.40.9141
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low843.80.7110
Triple Number AP Medium642.60.9336
Triple Number AP High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Single Number Predominant Upwind701.30.8556
Single Number Predominant Reaching619.60.9684
Single Number Predominant Downwind657.40.9127
Predominant Upwind - Low932.60.6434
Predominant Upwind - Low/Med774.50.7747
Predominant Upwind - Medium678.20.8846
Predominant Upwind - Med/High634.90.9450
Predominant Upwind - High625.10.9599
Predominant Downwind Low930.40.6449
Predominant Downwind Low/Med749.50.8006
Predominant Downwind Medium631.20.9506
Predominant Downwind Med/High559.01.0733
Predominant Downwind High517.01.1606
Predominant Reaching Low831.40.7216
Predominant Reaching Low/Med688.30.8717
Predominant Reaching Medium599.71.0006
Predominant Reaching Med/High549.11.0926
Predominant Reaching High519.41.1552
SA/DSPL Upwind22.97SA/DSPL Downwind36.04
Scoring OptionTODTOT
5-Band Windward/Leeward Low1155.20.5194
5-Band Windward/Leeward Low/Med925.70.6482
5-Band Windward/Leeward Medium775.40.7738
5-Band Windward/Leeward Med/High698.10.8595
5-Band Windward/Leeward High675.80.8878
Windward/Leeward 60-40 Low1161.50.5166
Windward/Leeward 60-40 Low/Med937.00.6403
Windward/Leeward 60-40 Medium792.50.7571
Windward/Leeward 60-40 Med/High722.90.8300
Windward/Leeward 60-40 High708.40.8470
5-Band AP Low890.60.6737
5-Band AP Low/Med732.50.8192
5-Band AP Medium632.90.9480
5-Band AP Med/High579.31.0357
5-Band AP High556.21.0787
5-Band SF Bay Tour - Low1097.70.5466
5-Band SF Bay Tour - Low/Med886.00.6772
5-Band SF Bay Tour - Medium750.60.7994
5-Band SF Bay Tour - Med/High683.10.8784
5-Band SF Bay Tour - High662.70.9053
Chicago-Mac Upwind0.8367
Chicago-Mac All Purpose0.8645
Chicago-Mac Downwind0.8974
Bayview-Mac Cove Island0.8015
Bayview-Mac Shore0.8092
Harvest Moon Regatta556.01.0792
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance704.6
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7110
Triple Number Coastal/Long Distance Medium0.9338
Triple Number Coastal/Long Distance High1.0483
Triple Number Windward/Leeward Low0.5510
Triple Number Windward/Leeward Medium0.7591
Triple Number Windward/Leeward High0.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low843.9
Triple Number Coastal/Long Distance Medium642.5
Triple Number Coastal/Long Distance High572.4
Triple Number Windward/Leeward Low1088.9
Triple Number Windward/Leeward Medium790.4
Triple Number Windward/Leeward High690.4
Predominantly Upwind702.8
Predominantly Downwind656.4
Predominantly Reaching629.6
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7110
Triple Number Coastal/Long Distance Medium0.9338
Triple Number Coastal/Long Distance High1.0483
Triple Number Windward/Leeward Low0.5510
Triple Number Windward/Leeward Medium0.7591
Triple Number Windward/Leeward High0.8691
Coastal/Long Distance0.8515
Predominantly Upwind0.8537
Predominantly Downwind0.9141
For information
General Purpose Handicap (GPH)729.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7110
Tretall Distanseseilas Mellomvind0.9338
Tretall Distanseseilas Mye vind1.0483
Tretall Pølsebane Lite vind0.5510
Tretall Pølsebane Mellomvind0.7591
Tretall Pølsebane Mye vind0.8691
Distanseseilas ett tall0.9272
Enkeltall Motvind0.8537
Enkeltall Medvind0.9141
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Coastal/Long Distance704.60.8515
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind702.80.8537
Predominantly Downwind656.40.9141
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore672.90.8916
Cape Doctor Coastal547.21.0966
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7110
Triple Number Coastal/Long Distance Medium0.9338
Triple Number Coastal/Long Distance High1.0483
Triple Number Windward/Leeward Low0.5510
Triple Number Windward/Leeward Medium0.7591
Triple Number Windward/Leeward High0.8691
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7110
Triple Number Coastal/Long Distance Medium0.9338
Triple Number Coastal/Long Distance High1.0483
Triple Number Windward/Leeward Low0.5510
Triple Number Windward/Leeward Medium0.7591
Triple Number Windward/Leeward High0.8691
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Predominantly Upwind702.80.8537
Predominantly Downwind656.40.9141
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance704.60.8515
Triple Number Coastal/Long Distance Low843.90.7110
Triple Number Coastal/Long Distance Medium642.50.9338
Triple Number Coastal/Long Distance High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1207.7909.2754.1663.7617.0582.0523.2506.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low843.80.7110
Triple Number AP Medium642.60.9336
Triple Number AP High572.41.0483
Triple Number Windward/Leeward Low1088.90.5510
Triple Number Windward/Leeward Medium790.40.7591
Triple Number Windward/Leeward High690.40.8691
Single Number Predominant Upwind701.30.8556
Single Number Predominant Reaching619.60.9684
Single Number Predominant Downwind657.40.9127
Predominant Upwind - Low932.60.6434
Predominant Upwind - Low/Med774.50.7747
Predominant Upwind - Medium678.20.8846
Predominant Upwind - Med/High634.90.9450
Predominant Upwind - High625.10.9599
Predominant Downwind Low930.40.6449
Predominant Downwind Low/Med749.50.8006
Predominant Downwind Medium631.20.9506
Predominant Downwind Med/High559.01.0733
Predominant Downwind High517.01.1606
Predominant Reaching Low831.40.7216
Predominant Reaching Low/Med688.30.8717
Predominant Reaching Medium599.71.0006
Predominant Reaching Med/High549.11.0926
Predominant Reaching High519.41.1552
SA/DSPL Upwind22.97SA/DSPL Downwind36.04
Scoring OptionTODTOT
5-Band Windward/Leeward Low1155.20.5194
5-Band Windward/Leeward Low/Med925.70.6482
5-Band Windward/Leeward Medium775.40.7738
5-Band Windward/Leeward Med/High698.10.8595
5-Band Windward/Leeward High675.80.8878
Windward/Leeward 60-40 Low1161.50.5166
Windward/Leeward 60-40 Low/Med937.00.6403
Windward/Leeward 60-40 Medium792.50.7571
Windward/Leeward 60-40 Med/High722.90.8300
Windward/Leeward 60-40 High708.40.8470
5-Band AP Low890.60.6737
5-Band AP Low/Med732.50.8192
5-Band AP Medium632.90.9480
5-Band AP Med/High579.31.0357
5-Band AP High556.21.0787
5-Band SF Bay Tour - Low1097.70.5466
5-Band SF Bay Tour - Low/Med886.00.6772
5-Band SF Bay Tour - Medium750.60.7994
5-Band SF Bay Tour - Med/High683.10.8784
5-Band SF Bay Tour - High662.70.9053
Chicago-Mac Upwind0.8367
Chicago-Mac All Purpose0.8645
Chicago-Mac Downwind0.8974
Bayview-Mac Cove Island0.8015
Bayview-Mac Shore0.8092
Harvest Moon Regatta556.01.0792

Club
Certificate
2024

Boat

YA ANDARA

ESP-3423_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFIRST 265Measurement29/12/2023HINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA7.920Max. Beam2.904Draft1.462Displacement2,128Wetted area14.76IMS L7.408LSM07.306Acc. length7.920Sink (kg/mm) 11.23
VCGD-0.091VCGM-0.065RM Rated (kg·m) 48.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight440Declared crew weight310
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.385PBW0.135PIPA0.0044
PSD0.025PHD0.066PHL0.110
PSA16.5°ESL0.971
ST10.028ST20.101ST30.101
ST40.057ST50.215
RIG
Forestay tensionAftInner stayFixedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders1Rotating mastNo
P9.400IG9.420ISP9.520MDT10.095MDL10.143MDT20.095MDL20.143TLMW0.143GO0.160
E3.320J3.080BAS1.450FSD0.030SFJ0.000SPL3.150WPLTPSBD0.120MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered50.0Flotation Date01/01/2010
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2024

Boat

YA ANDARA

ESP-3423_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20.130.671.202.082.7318.1804/06/2024
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20.060.561.072.153.314.489.04NoNo 19.9204/06/202410.060.500.982.053.114.218.95NoNo 18.5329/12/2023
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment19.589.589.585.215.2141.5929/12/2023
CRUISER/RACER REQUIREMENTS*
Accommodation length7.9 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity19 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 l
*This list refers to the calculated requirements. See IMS Appendix 1 for the complete list of requirements.