Double HandedClub Certificate2025
JANAAUT 181
Austrian Sailing Federation
Seegelände 10
7100 Neusiedl am See
Austria
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 Angles44.8°44.8°42.7°41.7°41.1°40.7°40.6°41.6°43.9°
Beat VMG2.032.793.383.804.074.174.214.163.98
52°3.204.315.105.645.936.076.126.146.05
60°3.434.575.355.846.116.256.326.366.32
75°3.574.755.546.016.286.456.576.686.71
90°3.674.945.806.236.426.536.716.987.13
110°3.735.025.916.366.656.907.087.387.63
120°3.564.855.786.316.646.947.257.798.16
135°3.094.315.316.076.486.817.137.979.12
150°2.573.684.695.556.166.536.857.528.52
Run VMG2.213.194.074.835.536.026.396.987.63
Gybe Angles148.0°148.0°152.3°154.6°162.8°170.5°177.7°178.1°169.4°
APH ToD:659.2CDL: 6.479APH ToT: 0.9102CertNo:D03/25
BOAT
ClassDEHLER 28DesignerV.D. STADTBuilderDEHLERAge date01/1993Series date01/1992Offset fileDEH28.OFFData fileJana
HULL
Length Overall8.512 mMaximum Beam2.852 mDraft1.389 mDisplacement3,036 kgDLR8.3239IMS DivisionCruiser/RacerDynamic Allowance0.350%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.360m
CREW
Maximum weight180 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension0.00 m
SAIL AREAS (m²)
MeasuredRatedMainsail22.7923.17Headsail Luffed15.1515.15Headsail FlyingSymmetric53.7053.70Asymmetric
STORM SAIL AREAS (m²)
Trysail6.96Storm Jib4.79Heavy Weather Jib12.92
SAIL LIMITS
Headsails5
✱ One set on the forestay
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.
Double HandedClub Certificate2025
JANAAUT 181
Austrian Sailing Federation
Seegelände 10
7100 Neusiedl am See
Austria
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 VMG1775.41290.81065.1947.5885.5862.5854.8864.9905.3
52°1124.0835.4705.6638.5606.7593.4588.4586.8595.2
60°1050.4787.7672.9616.1588.8575.7570.0566.2569.3
75°1007.1757.3649.7598.9573.3557.9547.8538.5536.2
90°980.5729.1620.3577.4560.6551.0536.7515.9504.8
110°964.5716.6609.3565.9541.3522.1508.1488.1471.7
120°1012.7742.8622.4570.6542.2519.0496.8462.2441.0
135°1166.0835.7677.5593.3555.8529.0505.0451.9394.6
150°1402.0977.0767.7648.5584.3551.7525.9479.0422.6
Run VMG1626.71128.1884.3744.9650.6598.0563.6515.5471.6
Selected Courses
Windward / Leeward1699.51209.5974.7846.2768.0730.3709.2690.2688.4
All purpose1278.1926.9763.3679.6634.0610.6595.2576.0566.5
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward809.10.7416
All purpose659.20.9102
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6203
Downwind "popa"0.8260
70% up, 30% down "Ilhabela"0.6704
30% up, 70% down "Ilhabela-inverso"0.7512
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Predominantly Upwind723.20.8296
Predominantly Downwind654.60.9165
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low845.10.7100
Triple Number AP Medium654.20.9172
Triple Number AP High591.81.0138
Triple Number Windward/Leeward Low1140.10.5263
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Single Number Predominant Upwind754.10.7956
Single Number Predominant Reaching652.10.9201
Single Number Predominant Downwind683.80.8775
Predominant Upwind - Low1038.00.5780
Predominant Upwind - Low/Med793.70.7559
Predominant Upwind - Medium699.30.8580
Predominant Upwind - Med/High657.70.9123
Predominant Upwind - High647.10.9272
Predominant Downwind Low999.60.6003
Predominant Downwind Low/Med739.60.8113
Predominant Downwind Medium630.80.9512
Predominant Downwind Med/High567.91.0566
Predominant Downwind High530.61.1309
Predominant Reaching Low897.90.6682
Predominant Reaching Low/Med688.50.8715
Predominant Reaching Medium609.20.9848
Predominant Reaching Med/High566.11.0598
Predominant Reaching High539.81.1114
SA/DSPL Upwind18.03SA/DSPL Downwind36.35
Scoring OptionTODTOT
5-Band Windward/Leeward Low1273.70.4711
5-Band Windward/Leeward Low/Med933.50.6428
5-Band Windward/Leeward Medium787.20.7622
5-Band Windward/Leeward Med/High714.50.8398
5-Band Windward/Leeward High693.20.8656
Windward/Leeward 60-40 Low1290.00.4651
Windward/Leeward 60-40 Low/Med952.90.6297
Windward/Leeward 60-40 Medium810.60.7402
Windward/Leeward 60-40 Med/High743.70.8068
Windward/Leeward 60-40 High728.60.8235
5-Band AP Low924.80.6488
5-Band AP Low/Med738.80.8121
5-Band AP Medium645.20.9299
5-Band AP Med/High597.81.0037
5-Band AP High577.71.0386
5-Band SF Bay Tour - Low1102.50.5442
5-Band SF Bay Tour - Low/Med897.00.6689
5-Band SF Bay Tour - Medium765.50.7838
5-Band SF Bay Tour - Med/High701.70.8550
5-Band SF Bay Tour - High681.90.8799
Chicago-Mac Upwind0.7713
Chicago-Mac All Purpose0.8107
Chicago-Mac Downwind0.8469
Bayview-Mac Cove Island0.5927
Bayview-Mac Shore0.5966
Harvest Moon Regatta568.91.0547
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance716.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating710.30.8447
FinRating, kevyt tuuli1245.80.8027
FinRating, kova tuuli580.80.8608
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8371
Triple Number Coastal/Long Distance Low0.7100
Triple Number Coastal/Long Distance Medium0.9173
Triple Number Coastal/Long Distance High1.0138
Triple Number Windward/Leeward Low0.5494
Triple Number Windward/Leeward Medium0.7482
Triple Number Windward/Leeward High0.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
For information
General Purpose Handicap (GPH)739.3
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low845.1
Triple Number Coastal/Long Distance Medium654.1
Triple Number Coastal/Long Distance High591.8
Triple Number Windward/Leeward Low1092.1
Triple Number Windward/Leeward Medium801.9
Triple Number Windward/Leeward High707.4
Predominantly Upwind723.2
Predominantly Downwind654.6
Predominantly Reaching633.8
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7100
Triple Number Coastal/Long Distance Medium0.9173
Triple Number Coastal/Long Distance High1.0138
Triple Number Windward/Leeward Low0.5494
Triple Number Windward/Leeward Medium0.7482
Triple Number Windward/Leeward High0.8482
Coastal/Long Distance0.8371
Predominantly Upwind0.8296
Predominantly Downwind0.9165
For information
General Purpose Handicap (GPH)739.3
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9102
Distanseseilas Trippeltall svak vind0.7100
Distanseseilas Trippeltall mellomvind0.9173
Distanseseilas Trippeltall sterk vind1.0138
Pølsebane Trippeltall svak vind0.5494
Pølsebane Trippeltall mellomvind0.7482
Pølsebane Trippeltall sterk vind0.8482
Motvind Singeltall0.8296
Medvind Singeltall0.9165
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Coastal/Long Distance716.80.8371
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind723.20.8296
Predominantly Downwind654.60.9165
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore689.00.8709
Cape Doctor Coastal569.41.0538
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7100
Triple Number Coastal/Long Distance Medium0.9173
Triple Number Coastal/Long Distance High1.0138
Triple Number Windward/Leeward Low0.5494
Triple Number Windward/Leeward Medium0.7482
Triple Number Windward/Leeward High0.8482
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7100
Triple Number Coastal/Long Distance Medium0.9173
Triple Number Coastal/Long Distance High1.0138
Triple Number Windward/Leeward Low0.5494
Triple Number Windward/Leeward Medium0.7482
Triple Number Windward/Leeward High0.8482
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Predominantly Upwind723.20.8296
Predominantly Downwind654.60.9165
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.80.8371
Triple Number Coastal/Long Distance Low845.10.7100
Triple Number Coastal/Long Distance Medium654.10.9173
Triple Number Coastal/Long Distance High591.81.0138
Triple Number Windward/Leeward Low1092.10.5494
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1791.81201.3913.9763.3676.6633.6600.1546.2533.5
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low845.10.7100
Triple Number AP Medium654.20.9172
Triple Number AP High591.81.0138
Triple Number Windward/Leeward Low1140.10.5263
Triple Number Windward/Leeward Medium801.90.7482
Triple Number Windward/Leeward High707.40.8482
Single Number Predominant Upwind754.10.7956
Single Number Predominant Reaching652.10.9201
Single Number Predominant Downwind683.80.8775
Predominant Upwind - Low1038.00.5780
Predominant Upwind - Low/Med793.70.7559
Predominant Upwind - Medium699.30.8580
Predominant Upwind - Med/High657.70.9123
Predominant Upwind - High647.10.9272
Predominant Downwind Low999.60.6003
Predominant Downwind Low/Med739.60.8113
Predominant Downwind Medium630.80.9512
Predominant Downwind Med/High567.91.0566
Predominant Downwind High530.61.1309
Predominant Reaching Low897.90.6682
Predominant Reaching Low/Med688.50.8715
Predominant Reaching Medium609.20.9848
Predominant Reaching Med/High566.11.0598
Predominant Reaching High539.81.1114
SA/DSPL Upwind18.03SA/DSPL Downwind36.35
Scoring OptionTODTOT
5-Band Windward/Leeward Low1273.70.4711
5-Band Windward/Leeward Low/Med933.50.6428
5-Band Windward/Leeward Medium787.20.7622
5-Band Windward/Leeward Med/High714.50.8398
5-Band Windward/Leeward High693.20.8656
Windward/Leeward 60-40 Low1290.00.4651
Windward/Leeward 60-40 Low/Med952.90.6297
Windward/Leeward 60-40 Medium810.60.7402
Windward/Leeward 60-40 Med/High743.70.8068
Windward/Leeward 60-40 High728.60.8235
5-Band AP Low924.80.6488
5-Band AP Low/Med738.80.8121
5-Band AP Medium645.20.9299
5-Band AP Med/High597.81.0037
5-Band AP High577.71.0386
5-Band SF Bay Tour - Low1102.50.5442
5-Band SF Bay Tour - Low/Med897.00.6689
5-Band SF Bay Tour - Medium765.50.7838
5-Band SF Bay Tour - Med/High701.70.8550
5-Band SF Bay Tour - High681.90.8799
Chicago-Mac Upwind0.7713
Chicago-Mac All Purpose0.8107
Chicago-Mac Downwind0.8469
Bayview-Mac Cove Island0.5927
Bayview-Mac Shore0.5966
Harvest Moon Regatta568.91.0547
Double HandedClub Certificate2025
JANAAUT 181
Austrian Sailing Federation
Seegelände 10
7100 Neusiedl am See
Austria
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDEHLER 28Measurement01/01/1999HIN510-283Plan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.512Max. Beam2.852Draft1.389Displacement3,036Wetted area16.12IMS L7.270LSM07.144Acc. length8.512Sink (kg/mm) 12.46
VCGD0.034VCGM0.065RM Rated (kg·m) 57.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight180
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.360PBWPIPA0.0005
EDLST1ST2
ST3ST4ST5
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P10.540IG9.780ISP9.850MDT10.090MDL10.140MDT20.090MDL20.140TL0.000MW0.140GO0.140
E3.770J2.950BAS1.300FSD0.028SFJ0.175SPL3.030WPLTPS3.000BD0.105MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date01/01/1999
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
JANAAUT 181
Austrian Sailing Federation
Seegelände 10
7100 Neusiedl am See
Austria
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment1680040.130.721.312.303.0922.7908/04/2019
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment00.080.450.861.652.443.159.28YesNo 15.1517/02/2023
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment1680019.469.469.466.976.1853.7008/04/2019
CRUISER/RACER REQUIREMENTS*
Accommodation length8.5 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity38 lMinimum number of seats in cockpit3Food stowage0.18 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.