Club
Certificate
Double Handed
2024

Boat

WYTE DOLPHIN

ESP-3370_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 Angles43.5°41.4°40.1°39.1°38.5°38.1°38.5°39.7°
Beat VMG2.993.614.034.294.424.474.464.35
52°4.545.345.816.066.196.256.286.25
60°4.765.545.966.196.326.416.476.47
75°4.905.676.086.316.486.616.786.86
90°4.825.666.156.386.556.737.047.26
110°4.935.866.326.626.897.117.427.68
120°4.775.796.296.626.937.267.818.16
135°4.315.376.106.486.797.147.948.81
150°3.684.695.596.186.516.817.518.36
Run VMG3.194.064.855.516.016.386.957.62
Gybe Angles146.6°150.7°151.9°161.5°175.9°178.6°178.6°177.2°
APH ToD:645.8CDL: 6.910APH ToT: 0.9291CertNo:3370R1
BOAT
ClassDOLPHIN 31DesignerSharp Allied Cons.BuilderRANK MARINE Int.Age date01/1986Series date01/1982Offset fileE188.OFFData fileE3370_C
HULL
Length Overall9.450 mMaximum Beam3.102 mDraft1.773 mDisplacement3,880 kgDLR9.1385IMS DivisionCruiser/RacerDynamic Allowance0.350%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeSolid 3 bladesDiameter0.300m
CREW
Maximum weight170 kg(default)Minimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail21.1221.79Headsail Luffed31.4831.48Headsail FlyingSymmetric76.2676.26Asymmetric
STORM SAIL AREAS (m²)
Trysail6.03Storm Jib6.28Heavy Weather Jib16.94
SAIL LIMITS
Headsails1 * Woven polyester sails  Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
COMMENTS
MEDIDAS ESTIMADAS CASCO ESTIMADO
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
Double Handed
2024

Boat

WYTE DOLPHIN

ESP-3370_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 VMG1203.6997.9892.7838.5815.1804.8807.4827.2
52°793.2674.4619.5594.3581.9575.9573.0575.6
60°756.5650.2604.2581.8569.2562.1556.7556.1
75°734.3634.5592.5570.1555.2544.4531.0524.5
90°746.3635.9585.8564.5549.7535.1511.5496.2
110°729.8614.4569.6543.7522.9506.6485.2468.5
120°754.7621.4572.0543.8519.4496.2460.7441.3
135°834.9669.9589.9556.0530.0504.3453.3408.8
150°977.2767.7644.2583.0552.8528.4479.4430.6
Run VMG1128.3886.0742.8653.2598.6564.7517.8472.7
Selected Courses
Windward / Leeward1166.0941.9817.7745.9706.8684.8662.6649.9
All purpose904.2745.1665.2623.0599.1582.8561.1547.0
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward782.80.7665
All purpose645.80.9291
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6604
Downwind "popa"0.8249
70% up, 30% down "Ilhabela"0.7024
30% up, 70% down "Ilhabela-inverso"0.7675
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Predominantly Upwind700.70.8563
Predominantly Downwind649.00.9245
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low824.60.7276
Triple Number AP Medium641.30.9356
Triple Number AP High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Single Number Predominant Upwind699.40.8579
Single Number Predominant Reaching621.50.9654
Single Number Predominant Downwind649.60.9236
Predominant Upwind - Low912.50.6575
Predominant Upwind - Low/Med766.20.7831
Predominant Upwind - Medium678.70.8840
Predominant Upwind - Med/High637.10.9417
Predominant Upwind - High622.80.9633
Predominant Downwind Low899.60.6670
Predominant Downwind Low/Med732.20.8195
Predominant Downwind Medium625.80.9588
Predominant Downwind Med/High562.61.0664
Predominant Downwind High525.21.1424
Predominant Reaching Low813.70.7374
Predominant Reaching Low/Med682.10.8796
Predominant Reaching Medium603.90.9935
Predominant Reaching Med/High559.41.0727
Predominant Reaching High531.71.1284
SA/DSPL Upwind21.21SA/DSPL Downwind39.26
Scoring OptionTODTOT
5-Band Windward/Leeward Low1115.10.5381
5-Band Windward/Leeward Low/Med902.20.6650
5-Band Windward/Leeward Medium762.60.7868
5-Band Windward/Leeward Med/High689.90.8697
5-Band Windward/Leeward High664.20.9033
Windward/Leeward 60-40 Low1123.50.5341
Windward/Leeward 60-40 Low/Med915.30.6555
Windward/Leeward 60-40 Medium780.90.7684
Windward/Leeward 60-40 Med/High713.90.8405
Windward/Leeward 60-40 High693.50.8652
5-Band AP Low868.10.6912
5-Band AP Low/Med722.30.8306
5-Band AP Medium632.80.9482
5-Band AP Med/High585.21.0252
5-Band AP High562.41.0669
5-Band SF Bay Tour - Low1061.40.5653
5-Band SF Bay Tour - Low/Med865.30.6934
5-Band SF Bay Tour - Medium740.50.8102
5-Band SF Bay Tour - Med/High677.10.8862
5-Band SF Bay Tour - High653.00.9188
Chicago-Mac Upwind0.8407
Chicago-Mac All Purpose0.8711
Chicago-Mac Downwind0.9095
Bayview-Mac Cove Island0.8090
Bayview-Mac Shore0.8140
Harvest Moon Regatta565.61.0609
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance700.1
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7276
Triple Number Coastal/Long Distance Medium0.9357
Triple Number Coastal/Long Distance High1.0368
Triple Number Windward/Leeward Low0.5693
Triple Number Windward/Leeward Medium0.7728
Triple Number Windward/Leeward High0.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low824.6
Triple Number Coastal/Long Distance Medium641.2
Triple Number Coastal/Long Distance High578.7
Triple Number Windward/Leeward Low1053.9
Triple Number Windward/Leeward Medium776.4
Triple Number Windward/Leeward High682.0
Predominantly Upwind700.7
Predominantly Downwind649.0
Predominantly Reaching628.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7276
Triple Number Coastal/Long Distance Medium0.9357
Triple Number Coastal/Long Distance High1.0368
Triple Number Windward/Leeward Low0.5693
Triple Number Windward/Leeward Medium0.7728
Triple Number Windward/Leeward High0.8798
Coastal/Long Distance0.8570
Predominantly Upwind0.8563
Predominantly Downwind0.9245
For information
General Purpose Handicap (GPH)723.6
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.7276
Tretall Distanseseilas Mellomvind0.9357
Tretall Distanseseilas Mye vind1.0368
Tretall Pølsebane Lite vind0.5693
Tretall Pølsebane Mellomvind0.7728
Tretall Pølsebane Mye vind0.8798
Distanseseilas ett tall0.9291
Enkeltall Motvind0.8563
Enkeltall Medvind0.9245
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Coastal/Long Distance700.10.8570
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind700.70.8563
Predominantly Downwind649.00.9245
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore653.70.9178
Cape Doctor Coastal551.21.0885
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7276
Triple Number Coastal/Long Distance Medium0.9357
Triple Number Coastal/Long Distance High1.0368
Triple Number Windward/Leeward Low0.5693
Triple Number Windward/Leeward Medium0.7728
Triple Number Windward/Leeward High0.8798
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7276
Triple Number Coastal/Long Distance Medium0.9357
Triple Number Coastal/Long Distance High1.0368
Triple Number Windward/Leeward Low0.5693
Triple Number Windward/Leeward Medium0.7728
Triple Number Windward/Leeward High0.8798
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Predominantly Upwind700.70.8563
Predominantly Downwind649.00.9245
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance700.10.8570
Triple Number Coastal/Long Distance Low824.60.7276
Triple Number Coastal/Long Distance Medium641.20.9357
Triple Number Coastal/Long Distance High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1162.2887.3742.7662.3620.7588.6537.1521.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low824.60.7276
Triple Number AP Medium641.30.9356
Triple Number AP High578.71.0368
Triple Number Windward/Leeward Low1053.90.5693
Triple Number Windward/Leeward Medium776.40.7728
Triple Number Windward/Leeward High682.00.8798
Single Number Predominant Upwind699.40.8579
Single Number Predominant Reaching621.50.9654
Single Number Predominant Downwind649.60.9236
Predominant Upwind - Low912.50.6575
Predominant Upwind - Low/Med766.20.7831
Predominant Upwind - Medium678.70.8840
Predominant Upwind - Med/High637.10.9417
Predominant Upwind - High622.80.9633
Predominant Downwind Low899.60.6670
Predominant Downwind Low/Med732.20.8195
Predominant Downwind Medium625.80.9588
Predominant Downwind Med/High562.61.0664
Predominant Downwind High525.21.1424
Predominant Reaching Low813.70.7374
Predominant Reaching Low/Med682.10.8796
Predominant Reaching Medium603.90.9935
Predominant Reaching Med/High559.41.0727
Predominant Reaching High531.71.1284
SA/DSPL Upwind21.21SA/DSPL Downwind39.26
Scoring OptionTODTOT
5-Band Windward/Leeward Low1115.10.5381
5-Band Windward/Leeward Low/Med902.20.6650
5-Band Windward/Leeward Medium762.60.7868
5-Band Windward/Leeward Med/High689.90.8697
5-Band Windward/Leeward High664.20.9033
Windward/Leeward 60-40 Low1123.50.5341
Windward/Leeward 60-40 Low/Med915.30.6555
Windward/Leeward 60-40 Medium780.90.7684
Windward/Leeward 60-40 Med/High713.90.8405
Windward/Leeward 60-40 High693.50.8652
5-Band AP Low868.10.6912
5-Band AP Low/Med722.30.8306
5-Band AP Medium632.80.9482
5-Band AP Med/High585.21.0252
5-Band AP High562.41.0669
5-Band SF Bay Tour - Low1061.40.5653
5-Band SF Bay Tour - Low/Med865.30.6934
5-Band SF Bay Tour - Medium740.50.8102
5-Band SF Bay Tour - Med/High677.10.8862
5-Band SF Bay Tour - High653.00.9188
Chicago-Mac Upwind0.8407
Chicago-Mac All Purpose0.8711
Chicago-Mac Downwind0.9095
Bayview-Mac Cove Island0.8090
Bayview-Mac Shore0.8140
Harvest Moon Regatta565.61.0609

Club
Certificate
Double Handed
2024

Boat

WYTE DOLPHIN

ESP-3370_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDOLPHIN 31MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA9.450Max. Beam3.102Draft1.773Displacement3,880Wetted area18.64IMS L7.478LSM07.516Acc. length9.450Sink (kg/mm) 12.97
VCGD-0.316VCGM-0.299RM Rated (kg·m) 88.3Limit of positive stability(°) N/AStability IndexN/ADefault crew weight458Declared crew weightN/A
PROPELLER
Propeller TypeSolid 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.300PBWPIPA0.0112
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders1Rotating mastNo
P9.300IG11.200ISP11.200MDT10.100MDL10.110MDT2MDL2TLMWGO
E3.700J4.000BAS1.500FSD0.050SFJSPL4.500WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered90.0Flotation Date01/01/2010
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
Double Handed
2024

Boat

WYTE DOLPHIN

ESP-3370_C

RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment121.12
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentORC5.200.00NoNo 31.48* Copied from legacy *
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentORC0.0076.26* Copied from legacy *
CRUISER/RACER REQUIREMENTS*
Accommodation length9.4 mTable area0.44 m²Headroom1.66 mMinimum number of berths4Personal gear stowage0.16 m³Fresh water capacity68 lMinimum number of seats in cockpit4Food stowage0.24 m³Fuel capacity38 l
*This list refers to the calculated requirements. See IMS Appendix 1 for the complete list of requirements.