Double HandedClub Certificate2025
RIPTIDEUSA 32122
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 Angles43.3°43.3°41.5°41.1°41.6°42.3°43.1°45.8°52.6°
Beat VMG2.303.143.743.984.024.023.993.783.37
52°3.584.795.575.895.996.036.045.915.48
60°3.835.055.816.146.256.316.346.306.14
75°4.025.266.006.386.606.736.836.896.87
90°3.975.286.116.456.817.097.297.557.68
110°4.075.416.306.857.297.617.908.408.74
120°3.915.276.226.827.397.978.449.2910.09
135°3.334.695.806.487.067.718.4810.9112.59
150°2.733.945.015.886.557.117.739.4312.55
Run VMG2.363.414.345.095.806.346.848.1710.87
Gybe Angles142.6°142.6°146.9°150.2°160.3°165.7°164.6°149.0°149.0°
APH ToD:628.3CDL: 6.277APH ToT: 0.9550CertNo:US7596
BOAT
ClassExpress 27DesignerSchumakerBuilderAlsbergAge date01/1986Series date01/1982Offset fileUS18887.OFFData fileUSA7596
HULL
Length Overall8.309 mMaximum Beam2.463 mDraft1.337 mDisplacement1,136 kgDLR3.9281IMS DivisionSportboatDynamic Allowance0.190%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight145 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail16.9517.40Headsail Luffed12.2612.26Headsail FlyingSymmetric42.7142.71Asymmetric40.1140.11 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail4.82Storm Jib4.19Heavy Weather Jib11.30
SAIL LIMITS
Headsails5Spinnakers4
✱ Asymmetric SHALL NOT be tacked on the pole
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.
Double HandedClub Certificate2025
RIPTIDEUSA 32122
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
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 VMG1567.41146.6963.1905.6894.9896.5903.4952.21067.5
52°1004.7752.1646.2610.8601.1597.0596.1608.9657.2
60°940.5712.8619.8586.6575.9570.2567.5571.2586.4
75°894.9684.9600.5564.3545.1534.5527.1522.4524.4
90°906.7681.5589.4558.2528.8507.7493.6477.1468.5
110°884.2665.3571.5525.5493.7473.4455.4428.8411.7
120°920.3683.0578.6528.2486.9451.8426.7387.5356.7
135°1082.1766.9620.6555.2509.6467.2424.6329.9285.9
150°1318.8914.7718.1612.0549.4506.3465.6381.8286.8
Run VMG1526.41056.3829.2706.6620.2567.6526.4440.8331.1
Selected Courses
Windward / Leeward1545.11101.4896.1806.1757.5732.0714.9696.5699.3
All purpose1160.2845.6704.4644.6611.2590.5574.6554.3555.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward785.90.7635
All purpose628.30.9550
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6304
Downwind "popa"0.8848
70% up, 30% down "Ilhabela"0.6899
30% up, 70% down "Ilhabela-inverso"0.7892
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Predominantly Upwind697.20.8605
Predominantly Downwind612.30.9798
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low775.00.7742
Triple Number AP Medium625.00.9600
Triple Number AP High571.01.0509
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Single Number Predominant Upwind726.40.8260
Single Number Predominant Reaching611.80.9807
Single Number Predominant Downwind637.80.9408
Predominant Upwind - Low939.60.6385
Predominant Upwind - Low/Med742.40.8081
Predominant Upwind - Medium681.80.8800
Predominant Upwind - Med/High657.90.9121
Predominant Upwind - High661.50.9071
Predominant Downwind Low923.00.6501
Predominant Downwind Low/Med692.20.8668
Predominant Downwind Medium596.21.0063
Predominant Downwind Med/High525.41.1419
Predominant Downwind High471.41.2728
Predominant Reaching Low826.00.7264
Predominant Reaching Low/Med645.80.9290
Predominant Reaching Medium577.81.0385
Predominant Reaching Med/High529.71.1327
Predominant Reaching High499.41.2015
SA/DSPL Upwind26.82SA/DSPL Downwind54.77
Scoring OptionTODTOT
5-Band Windward/Leeward Low1161.50.5166
5-Band Windward/Leeward Low/Med874.10.6864
5-Band Windward/Leeward Medium769.30.7799
5-Band Windward/Leeward Med/High718.30.8353
5-Band Windward/Leeward High700.20.8569
Windward/Leeward 60-40 Low1170.30.5127
Windward/Leeward 60-40 Low/Med891.30.6732
Windward/Leeward 60-40 Medium796.10.7537
Windward/Leeward 60-40 Med/High756.60.7930
Windward/Leeward 60-40 High752.90.7969
5-Band AP Low847.90.7077
5-Band AP Low/Med690.40.8691
5-Band AP Medium618.00.9709
5-Band AP Med/High577.01.0399
5-Band AP High558.11.0751
5-Band SF Bay Tour - Low1002.80.5983
5-Band SF Bay Tour - Low/Med838.10.7159
5-Band SF Bay Tour - Medium745.20.8051
5-Band SF Bay Tour - Med/High700.00.8571
5-Band SF Bay Tour - High685.70.8751
Chicago-Mac Upwind0.8077
Chicago-Mac All Purpose0.8568
Chicago-Mac Downwind0.9052
Bayview-Mac Cove Island0.6395
Bayview-Mac Shore0.6440
Harvest Moon Regatta521.41.1507
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance682.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating682.60.8789
FinRating, kevyt tuuli1137.80.8789
FinRating, kova tuuli557.90.8963
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8789
Triple Number Coastal/Long Distance Low0.7742
Triple Number Coastal/Long Distance Medium0.9601
Triple Number Coastal/Long Distance High1.0509
Triple Number Windward/Leeward Low0.6007
Triple Number Windward/Leeward Medium0.7703
Triple Number Windward/Leeward High0.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
For information
General Purpose Handicap (GPH)698.1
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low775.0
Triple Number Coastal/Long Distance Medium624.9
Triple Number Coastal/Long Distance High570.9
Triple Number Windward/Leeward Low998.8
Triple Number Windward/Leeward Medium778.9
Triple Number Windward/Leeward High712.3
Predominantly Upwind697.2
Predominantly Downwind612.3
Predominantly Reaching593.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7742
Triple Number Coastal/Long Distance Medium0.9601
Triple Number Coastal/Long Distance High1.0509
Triple Number Windward/Leeward Low0.6007
Triple Number Windward/Leeward Medium0.7703
Triple Number Windward/Leeward High0.8424
Coastal/Long Distance0.8789
Predominantly Upwind0.8605
Predominantly Downwind0.9798
For information
General Purpose Handicap (GPH)698.1
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9550
Distanseseilas Trippeltall svak vind0.7742
Distanseseilas Trippeltall mellomvind0.9601
Distanseseilas Trippeltall sterk vind1.0509
Pølsebane Trippeltall svak vind0.6007
Pølsebane Trippeltall mellomvind0.7703
Pølsebane Trippeltall sterk vind0.8424
Motvind Singeltall0.8605
Medvind Singeltall0.9798
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Coastal/Long Distance682.70.8789
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind697.20.8605
Predominantly Downwind612.30.9798
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore698.50.8590
Cape Doctor Coastal555.31.0805
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7742
Triple Number Coastal/Long Distance Medium0.9601
Triple Number Coastal/Long Distance High1.0509
Triple Number Windward/Leeward Low0.6007
Triple Number Windward/Leeward Medium0.7703
Triple Number Windward/Leeward High0.8424
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7742
Triple Number Coastal/Long Distance Medium0.9601
Triple Number Coastal/Long Distance High1.0509
Triple Number Windward/Leeward Low0.6007
Triple Number Windward/Leeward Medium0.7703
Triple Number Windward/Leeward High0.8424
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Predominantly Upwind697.20.8605
Predominantly Downwind612.30.9798
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance682.70.8789
Triple Number Coastal/Long Distance Low775.00.7742
Triple Number Coastal/Long Distance Medium624.90.9601
Triple Number Coastal/Long Distance High570.91.0509
Triple Number Windward/Leeward Low998.80.6007
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1633.71096.9842.2725.8656.2613.3576.0512.6498.0
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low775.00.7742
Triple Number AP Medium625.00.9600
Triple Number AP High571.01.0509
Triple Number Windward/Leeward Low1044.60.5744
Triple Number Windward/Leeward Medium778.90.7703
Triple Number Windward/Leeward High712.30.8424
Single Number Predominant Upwind726.40.8260
Single Number Predominant Reaching611.80.9807
Single Number Predominant Downwind637.80.9408
Predominant Upwind - Low939.60.6385
Predominant Upwind - Low/Med742.40.8081
Predominant Upwind - Medium681.80.8800
Predominant Upwind - Med/High657.90.9121
Predominant Upwind - High661.50.9071
Predominant Downwind Low923.00.6501
Predominant Downwind Low/Med692.20.8668
Predominant Downwind Medium596.21.0063
Predominant Downwind Med/High525.41.1419
Predominant Downwind High471.41.2728
Predominant Reaching Low826.00.7264
Predominant Reaching Low/Med645.80.9290
Predominant Reaching Medium577.81.0385
Predominant Reaching Med/High529.71.1327
Predominant Reaching High499.41.2015
SA/DSPL Upwind26.82SA/DSPL Downwind54.77
Scoring OptionTODTOT
5-Band Windward/Leeward Low1161.50.5166
5-Band Windward/Leeward Low/Med874.10.6864
5-Band Windward/Leeward Medium769.30.7799
5-Band Windward/Leeward Med/High718.30.8353
5-Band Windward/Leeward High700.20.8569
Windward/Leeward 60-40 Low1170.30.5127
Windward/Leeward 60-40 Low/Med891.30.6732
Windward/Leeward 60-40 Medium796.10.7537
Windward/Leeward 60-40 Med/High756.60.7930
Windward/Leeward 60-40 High752.90.7969
5-Band AP Low847.90.7077
5-Band AP Low/Med690.40.8691
5-Band AP Medium618.00.9709
5-Band AP Med/High577.01.0399
5-Band AP High558.11.0751
5-Band SF Bay Tour - Low1002.80.5983
5-Band SF Bay Tour - Low/Med838.10.7159
5-Band SF Bay Tour - Medium745.20.8051
5-Band SF Bay Tour - Med/High700.00.8571
5-Band SF Bay Tour - High685.70.8751
Chicago-Mac Upwind0.8077
Chicago-Mac All Purpose0.8568
Chicago-Mac Downwind0.9052
Bayview-Mac Cove Island0.6395
Bayview-Mac Shore0.6440
Harvest Moon Regatta521.41.1507
Double HandedClub Certificate2025
RIPTIDEUSA 32122
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassExpress 27MeasurementHINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.309Max. Beam2.463Draft1.337Displacement1,136Wetted area11.05IMS L6.985LSM06.613Acc. length8.004Sink (kg/mm) 8.27
VCGD0.002VCGM-0.033RM Rated (kg·m) 22.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight145
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0CheckstaysSpreaders2Rotating mastNo
P8.684IG8.773ISP8.773MDT10.078MDL10.129MDT20.072MDL20.091TL1.379MW0.091GO0.203
E3.170J2.740BAS1.150FSDFoilSFJ0.336SPL3.177WPLTPS3.050BD0.110MWT43.60MCG3.216
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.002Flotation Date28/01/2022
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
RIPTIDEUSA 32122
US SAILING
1 ROGER WILLIAMS UNI WAY
BRISTOL, RI 02809
USA
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.140.721.292.142.7216.9512/10/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentJ30.080.410.751.371.982.619.05YesNo 12.2611/04/2020
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateCommentS29.819.819.815.235.2042.7117/11/2020
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA9.907.908.905.365.6096%40.1115/04/2022