Club 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 Angles44.9°44.9°43.1°42.4°41.0°39.8°39.4°39.7°41.3°
Beat VMG2.002.763.353.784.114.334.414.434.31
52°3.164.285.095.645.986.176.286.346.31
60°3.394.545.345.856.146.336.456.546.54
75°3.534.715.516.026.306.496.656.866.93
90°3.644.935.836.296.546.686.787.087.33
110°3.694.985.896.386.686.967.227.617.91
120°3.514.805.756.306.656.957.277.978.48
135°3.044.265.276.046.456.787.117.889.00
150°2.553.654.665.526.146.506.817.448.31
Run VMG2.193.174.044.805.516.006.366.947.55
Gybe Angles148.0°148.0°152.5°154.6°162.9°170.9°177.7°178.6°175.7°
APH ToD:655.6CDL: 6.609APH ToT: 0.9153CertNo:003/25
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 Allowance0.310%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.360m
CREW
Maximum weight426 kg(default)Minimum weight296 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.
Club 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 VMG1800.71306.31075.7953.3875.6832.0815.8813.3835.8
52°1139.9841.9706.8637.8602.5583.1573.4568.0570.2
60°1061.6792.7673.9615.0586.0568.8558.2550.8550.3
75°1020.6764.7652.9598.5571.4554.7541.4525.0519.5
90°989.9730.9617.6572.4550.2538.6530.9508.5491.4
110°975.9722.3611.2564.6538.9517.5498.5473.0455.0
120°1024.6749.7626.1571.7541.4517.9495.0451.5424.5
135°1185.2845.9682.7596.1558.0530.8506.5457.0400.2
150°1414.5985.0773.3652.5586.7554.0528.9484.0433.0
Run VMG1642.01137.4890.6749.6653.4600.1565.7518.7477.0
Selected Courses
Windward / Leeward1719.81221.8983.2851.5764.5716.0690.7666.0656.4
All purpose1294.5935.6767.8681.2630.5601.3583.4559.8544.9
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward804.60.7457
All purpose655.60.9153
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6295
Downwind "popa"0.8211
70% up, 30% down "Ilhabela"0.6769
30% up, 70% down "Ilhabela-inverso"0.7524
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Predominantly Upwind717.80.8358
Predominantly Downwind654.90.9162
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low851.70.7045
Triple Number AP Medium651.60.9208
Triple Number AP High579.01.0362
Triple Number Windward/Leeward Low1151.20.5212
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Single Number Predominant Upwind748.10.8020
Single Number Predominant Reaching649.30.9241
Single Number Predominant Downwind684.10.8770
Predominant Upwind - Low1048.40.5723
Predominant Upwind - Low/Med796.40.7534
Predominant Upwind - Medium693.10.8657
Predominant Upwind - Med/High640.30.9370
Predominant Upwind - High623.30.9626
Predominant Downwind Low1009.10.5946
Predominant Downwind Low/Med742.90.8076
Predominant Downwind Medium629.80.9526
Predominant Downwind Med/High563.71.0644
Predominant Downwind High525.71.1414
Predominant Reaching Low905.60.6626
Predominant Reaching Low/Med689.40.8704
Predominant Reaching Medium605.00.9918
Predominant Reaching Med/High558.51.0742
Predominant Reaching High530.71.1307
SA/DSPL Upwind18.03SA/DSPL Downwind36.35
Scoring OptionTODTOT
5-Band Windward/Leeward Low1287.00.4662
5-Band Windward/Leeward Low/Med939.60.6386
5-Band Windward/Leeward Medium783.00.7663
5-Band Windward/Leeward Med/High697.00.8608
5-Band Windward/Leeward High668.60.8974
Windward/Leeward 60-40 Low1304.10.4601
Windward/Leeward 60-40 Low/Med959.10.6256
Windward/Leeward 60-40 Medium805.00.7453
Windward/Leeward 60-40 Med/High722.20.8308
Windward/Leeward 60-40 High698.40.8591
5-Band AP Low933.20.6430
5-Band AP Low/Med741.70.8089
5-Band AP Medium641.60.9352
5-Band AP Med/High586.41.0232
5-Band AP High561.31.0689
5-Band SF Bay Tour - Low1113.70.5387
5-Band SF Bay Tour - Low/Med902.80.6646
5-Band SF Bay Tour - Medium761.00.7884
5-Band SF Bay Tour - Med/High684.00.8771
5-Band SF Bay Tour - High657.00.9132
Chicago-Mac Upwind0.7743
Chicago-Mac All Purpose0.8118
Chicago-Mac Downwind0.8452
Bayview-Mac Cove Island0.5889
Bayview-Mac Shore0.5928
Harvest Moon Regatta566.01.0601
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance714.0
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating707.40.8481
FinRating, kevyt tuuli1258.60.7945
FinRating, kova tuuli564.50.8858
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8403
Triple Number Coastal/Long Distance Low0.7045
Triple Number Coastal/Long Distance Medium0.9209
Triple Number Coastal/Long Distance High1.0362
Triple Number Windward/Leeward Low0.5442
Triple Number Windward/Leeward Medium0.7504
Triple Number Windward/Leeward High0.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
For information
General Purpose Handicap (GPH)737.8
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low851.7
Triple Number Coastal/Long Distance Medium651.5
Triple Number Coastal/Long Distance High579.0
Triple Number Windward/Leeward Low1102.5
Triple Number Windward/Leeward Medium799.6
Triple Number Windward/Leeward High687.8
Predominantly Upwind717.8
Predominantly Downwind654.9
Predominantly Reaching632.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7045
Triple Number Coastal/Long Distance Medium0.9209
Triple Number Coastal/Long Distance High1.0362
Triple Number Windward/Leeward Low0.5442
Triple Number Windward/Leeward Medium0.7504
Triple Number Windward/Leeward High0.8724
Coastal/Long Distance0.8403
Predominantly Upwind0.8358
Predominantly Downwind0.9162
For information
General Purpose Handicap (GPH)737.8
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9153
Distanseseilas Trippeltall svak vind0.7045
Distanseseilas Trippeltall mellomvind0.9209
Distanseseilas Trippeltall sterk vind1.0362
Pølsebane Trippeltall svak vind0.5442
Pølsebane Trippeltall mellomvind0.7504
Pølsebane Trippeltall sterk vind0.8724
Motvind Singeltall0.8358
Medvind Singeltall0.9162
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Coastal/Long Distance714.00.8403
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind717.80.8358
Predominantly Downwind654.90.9162
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore659.30.9101
Cape Doctor Coastal549.41.0921
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7045
Triple Number Coastal/Long Distance Medium0.9209
Triple Number Coastal/Long Distance High1.0362
Triple Number Windward/Leeward Low0.5442
Triple Number Windward/Leeward Medium0.7504
Triple Number Windward/Leeward High0.8724
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7045
Triple Number Coastal/Long Distance Medium0.9209
Triple Number Coastal/Long Distance High1.0362
Triple Number Windward/Leeward Low0.5442
Triple Number Windward/Leeward Medium0.7504
Triple Number Windward/Leeward High0.8724
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Predominantly Upwind717.80.8358
Predominantly Downwind654.90.9162
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance714.00.8403
Triple Number Coastal/Long Distance Low851.70.7045
Triple Number Coastal/Long Distance Medium651.50.9209
Triple Number Coastal/Long Distance High579.01.0362
Triple Number Windward/Leeward Low1102.50.5442
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1814.11213.4921.1766.7672.8623.6589.3533.9516.6
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low851.70.7045
Triple Number AP Medium651.60.9208
Triple Number AP High579.01.0362
Triple Number Windward/Leeward Low1151.20.5212
Triple Number Windward/Leeward Medium799.60.7504
Triple Number Windward/Leeward High687.80.8724
Single Number Predominant Upwind748.10.8020
Single Number Predominant Reaching649.30.9241
Single Number Predominant Downwind684.10.8770
Predominant Upwind - Low1048.40.5723
Predominant Upwind - Low/Med796.40.7534
Predominant Upwind - Medium693.10.8657
Predominant Upwind - Med/High640.30.9370
Predominant Upwind - High623.30.9626
Predominant Downwind Low1009.10.5946
Predominant Downwind Low/Med742.90.8076
Predominant Downwind Medium629.80.9526
Predominant Downwind Med/High563.71.0644
Predominant Downwind High525.71.1414
Predominant Reaching Low905.60.6626
Predominant Reaching Low/Med689.40.8704
Predominant Reaching Medium605.00.9918
Predominant Reaching Med/High558.51.0742
Predominant Reaching High530.71.1307
SA/DSPL Upwind18.03SA/DSPL Downwind36.35
Scoring OptionTODTOT
5-Band Windward/Leeward Low1287.00.4662
5-Band Windward/Leeward Low/Med939.60.6386
5-Band Windward/Leeward Medium783.00.7663
5-Band Windward/Leeward Med/High697.00.8608
5-Band Windward/Leeward High668.60.8974
Windward/Leeward 60-40 Low1304.10.4601
Windward/Leeward 60-40 Low/Med959.10.6256
Windward/Leeward 60-40 Medium805.00.7453
Windward/Leeward 60-40 Med/High722.20.8308
Windward/Leeward 60-40 High698.40.8591
5-Band AP Low933.20.6430
5-Band AP Low/Med741.70.8089
5-Band AP Medium641.60.9352
5-Band AP Med/High586.41.0232
5-Band AP High561.31.0689
5-Band SF Bay Tour - Low1113.70.5387
5-Band SF Bay Tour - Low/Med902.80.6646
5-Band SF Bay Tour - Medium761.00.7884
5-Band SF Bay Tour - Med/High684.00.8771
5-Band SF Bay Tour - High657.00.9132
Chicago-Mac Upwind0.7743
Chicago-Mac All Purpose0.8118
Chicago-Mac Downwind0.8452
Bayview-Mac Cove Island0.5889
Bayview-Mac Shore0.5928
Harvest Moon Regatta566.01.0601
Club 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 L7.400LSM07.144Acc. length8.512Sink (kg/mm) 12.46
VCGD0.033VCGM0.064RM Rated (kg·m) 57.7Limit of positive stability(°) N/AStability IndexN/ADefault crew weight426Declared crew weightN/A
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
Club 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.