Club
Certificate
2024

Boat

NAKIYOWIN

USA 1999

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles44.2°42.8°41.5°40.4°39.9°39.5°39.6°40.5°
Beat VMG3.414.054.514.774.884.954.954.87
52°5.236.106.586.836.957.027.067.04
60°5.546.356.766.987.137.207.277.28
75°5.756.506.897.137.317.457.617.70
90°5.666.486.917.197.397.587.888.07
110°5.546.567.077.417.707.948.268.50
120°5.416.457.027.397.718.018.568.95
135°4.906.016.767.187.527.838.469.16
150°4.195.246.116.666.987.237.698.17
Run VMG3.634.545.295.776.076.577.207.67
Gybe Angles145.1°147.8°147.8°149.1°166.7°174.1°176.8°176.8°
APH ToD:581.8CDL: 8.507APH ToT: 1.0312CertNo:US1999
BOAT
ClassEricson 38 SDDesignerBruce KingBuilderEricson YachtsAge date06/1980Series date04/1980Offset fileUS18251sk.offData fileUS1999
HULL
Length Overall11.480 mMaximum Beam3.730 mDraft1.499 mDisplacement7,023 kgDLR9.3410IMS DivisionCruiser/RacerDynamic Allowance0.260%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFeathering 3 bladesDiameter0.381m
CREW
Maximum weight750 kg(declared)Minimum weight620 kg * when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail32.0032.37Headsail Luffed55.9155.91Headsail FlyingSymmetricAsymmetric114.06114.06 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail9.94Storm Jib11.76Heavy Weather Jib31.73
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

NAKIYOWIN

USA 1999

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1056.5890.0797.8755.3737.2727.8726.6740.0
52°688.4590.3546.8527.1517.6513.0510.1511.5
60°649.9567.1532.8515.4505.2499.9495.4494.6
75°626.0553.6522.6505.0492.4483.0473.3467.8
90°635.8555.8520.9500.6487.3475.1457.1446.3
110°649.3548.7508.9485.9467.8453.3435.8423.4
120°665.9557.8512.7487.4467.1449.6420.4402.3
135°734.2599.0532.6501.5479.0459.5425.3393.0
150°858.2687.4589.6540.7515.6497.8467.8440.8
Run VMG991.0793.7680.9624.4593.5547.9499.8469.2
Selected Courses
Windward / Leeward1023.7841.8739.3689.9665.3637.9613.2604.6
All purpose790.1661.9596.3563.9545.4530.1512.4502.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward717.70.8360
All purpose581.81.0312
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7380
Downwind "popa"0.8877
70% up, 30% down "Ilhabela"0.7773
30% up, 70% down "Ilhabela-inverso"0.8368
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Predominantly Upwind627.10.9568
Predominantly Downwind589.41.0180
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low726.00.8264
Triple Number AP Medium578.31.0375
Triple Number AP High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Single Number Predominant Upwind626.00.9584
Single Number Predominant Reaching555.71.0798
Single Number Predominant Downwind589.91.0171
Predominant Upwind - Low798.20.7517
Predominant Upwind - Low/Med679.70.8827
Predominant Upwind - Medium609.40.9846
Predominant Upwind - Med/High575.51.0426
Predominant Upwind - High562.81.0661
Predominant Downwind Low789.40.7601
Predominant Downwind Low/Med655.00.9161
Predominant Downwind Medium571.91.0492
Predominant Downwind Med/High520.51.1527
Predominant Downwind High488.91.2273
Predominant Reaching Low708.80.8465
Predominant Reaching Low/Med604.60.9923
Predominant Reaching Medium542.01.1071
Predominant Reaching Med/High505.41.1871
Predominant Reaching High483.91.2400
SA/DSPL Upwind23.82SA/DSPL Downwind39.57
Scoring OptionTODTOT
5-Band Windward/Leeward Low982.40.6107
5-Band Windward/Leeward Low/Med810.00.7407
5-Band Windward/Leeward Medium702.30.8543
5-Band Windward/Leeward Med/High642.90.9333
5-Band Windward/Leeward High616.00.9741
Windward/Leeward 60-40 Low989.70.6062
Windward/Leeward 60-40 Low/Med820.50.7313
Windward/Leeward 60-40 Medium715.50.8385
Windward/Leeward 60-40 Med/High660.60.9082
Windward/Leeward 60-40 High638.60.9395
5-Band AP Low761.00.7884
5-Band AP Low/Med643.20.9328
5-Band AP Medium571.51.0498
5-Band AP Med/High532.61.1266
5-Band AP High513.81.1677
5-Band SF Bay Tour - Low935.10.6416
5-Band SF Bay Tour - Low/Med775.30.7739
5-Band SF Bay Tour - Medium676.60.8867
5-Band SF Bay Tour - Med/High624.90.9601
5-Band SF Bay Tour - High602.60.9957
Chicago-Mac Upwind0.9404
Chicago-Mac All Purpose0.9687
Chicago-Mac Downwind1.0029
Bayview-Mac Cove Island0.9093
Bayview-Mac Shore0.9154
Harvest Moon Regatta511.91.1721
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance632.9
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating (Coastal/Long Distance)632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8264
Triple Number Coastal/Long Distance Medium1.0376
Triple Number Coastal/Long Distance High1.1379
Triple Number Windward/Leeward Low0.6432
Triple Number Windward/Leeward Medium0.8417
Triple Number Windward/Leeward High0.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low726.0
Triple Number Coastal/Long Distance Medium578.3
Triple Number Coastal/Long Distance High527.3
Triple Number Windward/Leeward Low932.8
Triple Number Windward/Leeward Medium712.8
Triple Number Windward/Leeward High635.5
Predominantly Upwind627.1
Predominantly Downwind589.4
Predominantly Reaching565.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8264
Triple Number Coastal/Long Distance Medium1.0376
Triple Number Coastal/Long Distance High1.1379
Triple Number Windward/Leeward Low0.6432
Triple Number Windward/Leeward Medium0.8417
Triple Number Windward/Leeward High0.9442
Coastal/Long Distance0.9480
Predominantly Upwind0.9568
Predominantly Downwind1.0180
For information
General Purpose Handicap (GPH)647.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.8264
Tretall Distanseseilas Mellomvind1.0376
Tretall Distanseseilas Mye vind1.1379
Tretall Pølsebane Lite vind0.6432
Tretall Pølsebane Mellomvind0.8417
Tretall Pølsebane Mye vind0.9442
Distanseseilas ett tall1.0312
Enkeltall Motvind0.9568
Enkeltall Medvind1.0180
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Coastal/Long Distance632.90.9480
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind627.10.9568
Predominantly Downwind589.41.0180
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore607.20.9882
Cape Doctor Coastal505.71.1864
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8264
Triple Number Coastal/Long Distance Medium1.0376
Triple Number Coastal/Long Distance High1.1379
Triple Number Windward/Leeward Low0.6432
Triple Number Windward/Leeward Medium0.8417
Triple Number Windward/Leeward High0.9442
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8264
Triple Number Coastal/Long Distance Medium1.0376
Triple Number Coastal/Long Distance High1.1379
Triple Number Windward/Leeward Low0.6432
Triple Number Windward/Leeward Medium0.8417
Triple Number Windward/Leeward High0.9442
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Predominantly Upwind627.10.9568
Predominantly Downwind589.41.0180
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance632.90.9480
Triple Number Coastal/Long Distance Low726.00.8264
Triple Number Coastal/Long Distance Medium578.31.0376
Triple Number Coastal/Long Distance High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1020.5791.9669.0601.8566.9536.2489.8478.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low726.00.8264
Triple Number AP Medium578.31.0375
Triple Number AP High527.31.1379
Triple Number Windward/Leeward Low932.80.6432
Triple Number Windward/Leeward Medium712.80.8417
Triple Number Windward/Leeward High635.50.9442
Single Number Predominant Upwind626.00.9584
Single Number Predominant Reaching555.71.0798
Single Number Predominant Downwind589.91.0171
Predominant Upwind - Low798.20.7517
Predominant Upwind - Low/Med679.70.8827
Predominant Upwind - Medium609.40.9846
Predominant Upwind - Med/High575.51.0426
Predominant Upwind - High562.81.0661
Predominant Downwind Low789.40.7601
Predominant Downwind Low/Med655.00.9161
Predominant Downwind Medium571.91.0492
Predominant Downwind Med/High520.51.1527
Predominant Downwind High488.91.2273
Predominant Reaching Low708.80.8465
Predominant Reaching Low/Med604.60.9923
Predominant Reaching Medium542.01.1071
Predominant Reaching Med/High505.41.1871
Predominant Reaching High483.91.2400
SA/DSPL Upwind23.82SA/DSPL Downwind39.57
Scoring OptionTODTOT
5-Band Windward/Leeward Low982.40.6107
5-Band Windward/Leeward Low/Med810.00.7407
5-Band Windward/Leeward Medium702.30.8543
5-Band Windward/Leeward Med/High642.90.9333
5-Band Windward/Leeward High616.00.9741
Windward/Leeward 60-40 Low989.70.6062
Windward/Leeward 60-40 Low/Med820.50.7313
Windward/Leeward 60-40 Medium715.50.8385
Windward/Leeward 60-40 Med/High660.60.9082
Windward/Leeward 60-40 High638.60.9395
5-Band AP Low761.00.7884
5-Band AP Low/Med643.20.9328
5-Band AP Medium571.51.0498
5-Band AP Med/High532.61.1266
5-Band AP High513.81.1677
5-Band SF Bay Tour - Low935.10.6416
5-Band SF Bay Tour - Low/Med775.30.7739
5-Band SF Bay Tour - Medium676.60.8867
5-Band SF Bay Tour - Med/High624.90.9601
5-Band SF Bay Tour - High602.60.9957
Chicago-Mac Upwind0.9404
Chicago-Mac All Purpose0.9687
Chicago-Mac Downwind1.0029
Bayview-Mac Cove Island0.9093
Bayview-Mac Shore0.9154
Harvest Moon Regatta511.91.1721

Club
Certificate
2024

Boat

NAKIYOWIN

USA 1999

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassEricson 38 SDMeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA11.480Max. Beam3.730Draft1.499Displacement7,023Wetted area25.25IMS L9.197LSM09.092Acc. length11.480Sink (kg/mm) 19.09
VCGD-0.008VCGM0.001RM Rated (kg·m) 147.8Limit of positive stability(°) N/AStability IndexN/ADefault crew weight601Declared crew weight750
PROPELLER
Propeller TypeFeathering 3 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.381PBW0.013PIPA0.0014
PSD0.025PHD0.071PHL0.180
PSA24.0°ESL
ST10.702ST20.046ST30.141
ST4ST5
RIG
Forestay tensionFixedInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunners/Checkstays0Spreaders2Rotating mastNo
P13.300IG15.228ISP15.240MDT10.187MDL10.217MDT20.181MDL20.184TL2.768MW0.184GO0.217
E4.267J4.950BAS1.808FSD0.032SFJ0.000SPLWPLTPS5.050BD0.150MWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/08/2023
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible

Club
Certificate
2024

Boat

NAKIYOWIN

USA 1999

US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentMN10.130.791.432.543.4532.0011/10/2023186565
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ10.080.951.853.725.667.7014.77NoNo 55.9111/10/2023186564
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA216.7014.7015.709.037.47121%114.0611/10/2023186566
CRUISER/RACER REQUIREMENTS*
Accommodation length11.5 mTable area0.55 m²Headroom1.79 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity138 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity80 l
*This list refers to the calculated requirements. See IMS Appendix 1 for the complete list of requirements.