Non Spin/HSFClub Certificate2025
HYDROGENO21ITA-226RS21
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 Angles43.7°43.7°41.5°39.5°37.8°37.2°37.6°39.4°41.2°
Beat VMG2.213.073.744.194.504.644.694.754.71
52°3.474.695.535.986.376.706.907.117.19
60°3.734.945.726.166.597.027.347.717.90
75°3.905.105.846.326.827.398.008.959.53
90°3.775.005.806.306.827.438.1810.1411.78
110°3.244.515.506.096.647.268.0210.2413.39
120°2.984.225.255.916.426.987.679.4513.21
135°2.523.654.685.506.036.527.068.4610.85
150°2.123.104.034.875.556.026.467.478.78
Run VMG1.812.693.544.365.105.716.167.128.31
Gybe Angles145.6°145.6°180.0°180.0°180.0°180.0°180.0°180.0°179.1°
APH ToD:642.8CDL: 6.568APH ToT: 0.9335CertNo:25/1
BOAT
ClassRS 21DesignerRichardsBuilderRS SailingAge date01/2020Series date07/2018Offset fileRS21.offData fileI226RS21
HULL
Length Overall6.406 mMaximum Beam2.222 mDraft1.337 mDisplacement650 kgDLR3.5176IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.228%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight240 kg(declared)Minimum weight130 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail15.4115.99Headsail Luffed8.128.12Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS (m²)
Trysail4.14Storm Jib2.96Heavy Weather Jib7.99
SAIL LIMITS
Headsails1
✱ One set on the forestay
✱ Zero set flying
Spinnakers0
✱ No spinnaker pole aboard
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.
Non Spin/HSFClub Certificate2025
HYDROGENO21ITA-226RS21
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
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 VMG1627.81173.6962.3858.6800.6775.3767.9758.1763.6
52°1036.0767.7651.0601.8565.6537.4521.6506.3501.0
60°965.2728.5629.4584.5546.0512.8490.5467.1455.6
75°923.1705.8616.5569.5528.2487.2449.8402.1377.6
90°954.4720.5621.1571.2527.6484.3440.1355.2305.6
110°1110.9797.4654.2591.2542.4496.1449.0351.5268.8
120°1209.8852.4685.3609.5560.8516.0469.2381.0272.5
135°1429.3985.5768.8655.1597.1552.0510.2425.6331.7
150°1701.71160.8892.7739.1649.1598.3557.6482.1410.0
Run VMG1991.71340.41015.9825.4705.5630.9584.0505.6433.1
Selected Courses
Windward / Leeward1807.01257.0989.1842.0753.0703.1676.0631.9598.4
All purpose1338.1955.2774.1680.1620.6579.5548.1493.5449.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward795.90.7539
All purpose642.80.9335
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6889
Downwind "popa"0.7490
70% up, 30% down "Ilhabela"0.7059
30% up, 70% down "Ilhabela-inverso"0.7299
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Predominantly Upwind683.50.8778
Predominantly Downwind675.20.8887
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low864.60.6939
Triple Number AP Medium643.00.9331
Triple Number AP High535.51.1205
Triple Number Windward/Leeward Low1177.00.5098
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Single Number Predominant Upwind708.80.8465
Single Number Predominant Reaching636.80.9422
Single Number Predominant Downwind706.30.8494
Predominant Upwind - Low1010.40.5938
Predominant Upwind - Low/Med763.10.7862
Predominant Upwind - Medium659.50.9098
Predominant Upwind - Med/High594.41.0094
Predominant Upwind - High557.51.0761
Predominant Downwind Low1109.90.5406
Predominant Downwind Low/Med789.70.7598
Predominant Downwind Medium646.60.9280
Predominant Downwind Med/High547.41.0961
Predominant Downwind High477.21.2573
Predominant Reaching Low935.90.6411
Predominant Reaching Low/Med701.10.8558
Predominant Reaching Medium596.71.0055
Predominant Reaching Med/High513.61.1682
Predominant Reaching High448.81.3368
SA/DSPL Upwind31.41SA/DSPL Downwind31.41
Scoring OptionTODTOT
5-Band Windward/Leeward Low1328.20.4517
5-Band Windward/Leeward Low/Med941.80.6371
5-Band Windward/Leeward Medium772.80.7764
5-Band Windward/Leeward Med/High679.50.8830
5-Band Windward/Leeward High633.70.9468
Windward/Leeward 60-40 Low1309.40.4582
Windward/Leeward 60-40 Low/Med940.10.6383
Windward/Leeward 60-40 Medium781.60.7677
Windward/Leeward 60-40 Med/High697.60.8601
Windward/Leeward 60-40 High659.10.9103
5-Band AP Low973.40.6164
5-Band AP Low/Med745.00.8054
5-Band AP Medium630.40.9518
5-Band AP Med/High550.31.0904
5-Band AP High495.41.2113
5-Band SF Bay Tour - Low1129.60.5312
5-Band SF Bay Tour - Low/Med898.90.6675
5-Band SF Bay Tour - Medium748.10.8021
5-Band SF Bay Tour - Med/High663.80.9039
5-Band SF Bay Tour - High618.30.9703
Chicago-Mac Upwind0.8143
Chicago-Mac All Purpose0.8177
Chicago-Mac Downwind0.8100
Bayview-Mac Cove Island0.5759
Bayview-Mac Shore0.5829
Harvest Moon Regatta541.81.1074
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance702.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating702.60.8539
FinRating, kevyt tuuli1309.10.7639
FinRating, kova tuuli493.31.0136
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8539
Triple Number Coastal/Long Distance Low0.6939
Triple Number Coastal/Long Distance Medium0.9332
Triple Number Coastal/Long Distance High1.1205
Triple Number Windward/Leeward Low0.5343
Triple Number Windward/Leeward Medium0.7596
Triple Number Windward/Leeward High0.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
For information
General Purpose Handicap (GPH)729.7
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low864.7
Triple Number Coastal/Long Distance Medium642.9
Triple Number Coastal/Long Distance High535.5
Triple Number Windward/Leeward Low1123.0
Triple Number Windward/Leeward Medium789.9
Triple Number Windward/Leeward High666.2
Predominantly Upwind683.5
Predominantly Downwind675.2
Predominantly Reaching634.0
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6939
Triple Number Coastal/Long Distance Medium0.9332
Triple Number Coastal/Long Distance High1.1205
Triple Number Windward/Leeward Low0.5343
Triple Number Windward/Leeward Medium0.7596
Triple Number Windward/Leeward High0.9006
Coastal/Long Distance0.8539
Predominantly Upwind0.8778
Predominantly Downwind0.8887
For information
General Purpose Handicap (GPH)729.7
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9335
Distanseseilas Trippeltall svak vind0.6939
Distanseseilas Trippeltall mellomvind0.9332
Distanseseilas Trippeltall sterk vind1.1205
Pølsebane Trippeltall svak vind0.5343
Pølsebane Trippeltall mellomvind0.7596
Pølsebane Trippeltall sterk vind0.9006
Motvind Singeltall0.8778
Medvind Singeltall0.8887
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Coastal/Long Distance702.60.8539
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind683.50.8778
Predominantly Downwind675.20.8887
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore608.40.9862
Cape Doctor Coastal462.71.2967
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6939
Triple Number Coastal/Long Distance Medium0.9332
Triple Number Coastal/Long Distance High1.1205
Triple Number Windward/Leeward Low0.5343
Triple Number Windward/Leeward Medium0.7596
Triple Number Windward/Leeward High0.9006
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6939
Triple Number Coastal/Long Distance Medium0.9332
Triple Number Coastal/Long Distance High1.1205
Triple Number Windward/Leeward Low0.5343
Triple Number Windward/Leeward Medium0.7596
Triple Number Windward/Leeward High0.9006
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Predominantly Upwind683.50.8778
Predominantly Downwind675.20.8887
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance702.60.8539
Triple Number Coastal/Long Distance Low864.70.6939
Triple Number Coastal/Long Distance Medium642.90.9332
Triple Number Coastal/Long Distance High535.51.1205
Triple Number Windward/Leeward Low1123.00.5343
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1957.51265.3932.7763.6662.2603.0553.6457.6403.8
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low864.60.6939
Triple Number AP Medium643.00.9331
Triple Number AP High535.51.1205
Triple Number Windward/Leeward Low1177.00.5098
Triple Number Windward/Leeward Medium789.90.7596
Triple Number Windward/Leeward High666.20.9006
Single Number Predominant Upwind708.80.8465
Single Number Predominant Reaching636.80.9422
Single Number Predominant Downwind706.30.8494
Predominant Upwind - Low1010.40.5938
Predominant Upwind - Low/Med763.10.7862
Predominant Upwind - Medium659.50.9098
Predominant Upwind - Med/High594.41.0094
Predominant Upwind - High557.51.0761
Predominant Downwind Low1109.90.5406
Predominant Downwind Low/Med789.70.7598
Predominant Downwind Medium646.60.9280
Predominant Downwind Med/High547.41.0961
Predominant Downwind High477.21.2573
Predominant Reaching Low935.90.6411
Predominant Reaching Low/Med701.10.8558
Predominant Reaching Medium596.71.0055
Predominant Reaching Med/High513.61.1682
Predominant Reaching High448.81.3368
SA/DSPL Upwind31.41SA/DSPL Downwind31.41
Scoring OptionTODTOT
5-Band Windward/Leeward Low1328.20.4517
5-Band Windward/Leeward Low/Med941.80.6371
5-Band Windward/Leeward Medium772.80.7764
5-Band Windward/Leeward Med/High679.50.8830
5-Band Windward/Leeward High633.70.9468
Windward/Leeward 60-40 Low1309.40.4582
Windward/Leeward 60-40 Low/Med940.10.6383
Windward/Leeward 60-40 Medium781.60.7677
Windward/Leeward 60-40 Med/High697.60.8601
Windward/Leeward 60-40 High659.10.9103
5-Band AP Low973.40.6164
5-Band AP Low/Med745.00.8054
5-Band AP Medium630.40.9518
5-Band AP Med/High550.31.0904
5-Band AP High495.41.2113
5-Band SF Bay Tour - Low1129.60.5312
5-Band SF Bay Tour - Low/Med898.90.6675
5-Band SF Bay Tour - Medium748.10.8021
5-Band SF Bay Tour - Med/High663.80.9039
5-Band SF Bay Tour - High618.30.9703
Chicago-Mac Upwind0.8143
Chicago-Mac All Purpose0.8177
Chicago-Mac Downwind0.8100
Bayview-Mac Cove Island0.5759
Bayview-Mac Shore0.5829
Harvest Moon Regatta541.81.1074
Non Spin/HSFClub Certificate2025
HYDROGENO21ITA-226RS21
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassRS 21Measurement29/11/2017HINPlan reviewHull constructionLightCarbon rudderNoLight stanchionsNoTrim tabNo
LOA6.406Max. Beam2.222Draft1.337Displacement650Wetted area8.24IMS L6.179LSM05.696Acc. length6.406Sink (kg/mm) 6.41
VCGD-1.300VCGM-1.273RM Rated (kg·m) 27.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight308Declared crew weight240
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialCarbonSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P7.800IG7.690ISP8.950MDT10.080MDL10.130MDT20.080MDL20.080TL1.440MW0.080GO0.080
E3.030J2.330BAS0.940FSDFoilSFJ0.135SPLWPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-1.300Flotation Date26/10/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Non Spin/HSFClub Certificate2025
HYDROGENO21ITA-226RS21
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.370.871.392.162.6615.4128/03/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.100.380.691.221.732.226.83NoNo 8.1228/03/2023