Double HandedClub Certificate2025
EXPLOSIVEX 505
Deutscher Segler Verband e.V.
Soling 16
24159 Kiel Schilksee
technik@dsv.org
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 Angles43.1°43.1°41.2°40.3°40.0°40.1°40.5°41.9°45.1°
Beat VMG2.172.973.573.914.044.074.084.003.72
52°3.384.525.285.685.845.905.935.925.75
60°3.604.765.495.866.036.106.146.166.06
75°3.764.935.656.026.236.376.466.546.54
90°3.734.975.766.126.326.536.716.927.01
110°3.785.055.886.296.616.857.017.287.39
120°3.604.885.786.256.616.957.267.708.07
135°3.144.355.336.026.436.817.198.189.80
150°2.543.664.685.536.106.486.857.689.35
Run VMG2.193.174.064.825.505.976.347.018.09
Gybe Angles146.9°146.9°151.6°154.6°163.7°172.3°177.2°177.2°147.4°
APH ToD:660.6CDL: 6.239APH ToT: 0.9082CertNo:142710
BOAT
ClassEXPRESSDesignerPETER NORLINBuilderALBIN MARINEAge date01/1979Series date01/1978Offset fileAlbinExpess.offData fileEX505
HULL
Length Overall7.785 mMaximum Beam2.520 mDraft1.451 mDisplacement1,870 kgDLR6.1211IMS DivisionSportboatDynamic Allowance0.210%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight195 kg(declared)Minimum weight120 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail18.7419.11Headsail Luffed14.5014.50Headsail FlyingSymmetric41.6541.65Asymmetric
STORM SAIL AREAS (m²)
Trysail5.57Storm Jib3.90Heavy Weather Jib10.53
SAIL LIMITS
Headsails5
✱ Woven polyester sails
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
EXPLOSIVEX 505
Deutscher Segler Verband e.V.
Soling 16
24159 Kiel Schilksee
technik@dsv.org
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 VMG1655.51211.21009.8920.9891.9883.7882.9901.0966.7
52°1066.2797.2681.5633.7616.1609.8606.7607.9625.9
60°1000.8757.1655.7614.3597.0590.0585.9584.1594.0
75°958.1729.8636.8598.2577.6564.8557.7550.1550.7
90°964.0724.6624.6588.1569.9551.0536.7520.2513.6
110°952.8713.6612.4571.9544.9525.8513.6494.8487.4
120°1000.9738.2623.1575.9544.4518.1495.6467.6446.2
135°1145.9826.7675.9597.8560.2529.0500.6440.3367.4
150°1416.8982.5768.9650.5589.8555.6525.8468.7385.2
Run VMG1640.91134.5886.7746.5654.6602.8568.2513.3444.8
Selected Courses
Windward / Leeward1646.01172.9948.3833.7773.3743.3725.6707.2705.7
All purpose1237.2901.7748.3675.9639.6619.1605.0586.6578.7
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward808.80.7419
All purpose660.60.9082
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.6267
Downwind "popa"0.8224
70% up, 30% down "Ilhabela"0.6749
30% up, 70% down "Ilhabela-inverso"0.7520
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Predominantly Upwind722.50.8304
Predominantly Downwind655.50.9153
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low825.00.7273
Triple Number AP Medium655.70.9151
Triple Number AP High601.60.9973
Triple Number Windward/Leeward Low1107.90.5416
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Single Number Predominant Upwind751.50.7984
Single Number Predominant Reaching652.40.9198
Single Number Predominant Downwind683.70.8776
Predominant Upwind - Low996.50.6021
Predominant Upwind - Low/Med777.30.7719
Predominant Upwind - Medium702.90.8536
Predominant Upwind - Med/High672.30.8925
Predominant Upwind - High666.00.9009
Predominant Downwind Low986.70.6081
Predominant Downwind Low/Med736.80.8144
Predominant Downwind Medium634.40.9457
Predominant Downwind Med/High571.91.0492
Predominant Downwind High530.71.1306
Predominant Reaching Low879.90.6819
Predominant Reaching Low/Med685.40.8755
Predominant Reaching Medium613.80.9774
Predominant Reaching Med/High571.11.0505
Predominant Reaching High544.61.1018
SA/DSPL Upwind21.86SA/DSPL Downwind39.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1235.60.4856
5-Band Windward/Leeward Low/Med915.10.6557
5-Band Windward/Leeward Medium788.90.7605
5-Band Windward/Leeward Med/High729.50.8225
5-Band Windward/Leeward High710.10.8450
Windward/Leeward 60-40 Low1242.80.4828
Windward/Leeward 60-40 Low/Med930.20.6450
Windward/Leeward 60-40 Medium812.00.7389
Windward/Leeward 60-40 Med/High760.90.7885
Windward/Leeward 60-40 High749.90.8001
5-Band AP Low905.30.6628
5-Band AP Low/Med729.30.8227
5-Band AP Medium648.30.9254
5-Band AP Med/High607.20.9882
5-Band AP High588.41.0197
5-Band SF Bay Tour - Low1066.60.5625
5-Band SF Bay Tour - Low/Med878.40.6831
5-Band SF Bay Tour - Medium767.10.7821
5-Band SF Bay Tour - Med/High715.80.8382
5-Band SF Bay Tour - High698.00.8595
Chicago-Mac Upwind0.7785
Chicago-Mac All Purpose0.8145
Chicago-Mac Downwind0.8477
Bayview-Mac Cove Island0.6052
Bayview-Mac Shore0.6096
Harvest Moon Regatta570.01.0527
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance716.6
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating716.60.8373
FinRating, kevyt tuuli1211.70.8253
FinRating, kova tuuli591.40.8455
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.8373
Triple Number Coastal/Long Distance Low0.7273
Triple Number Coastal/Long Distance Medium0.9152
Triple Number Coastal/Long Distance High0.9973
Triple Number Windward/Leeward Low0.5657
Triple Number Windward/Leeward Medium0.7495
Triple Number Windward/Leeward High0.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
For information
General Purpose Handicap (GPH)736.0
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low825.0
Triple Number Coastal/Long Distance Medium655.6
Triple Number Coastal/Long Distance High601.6
Triple Number Windward/Leeward Low1060.6
Triple Number Windward/Leeward Medium800.5
Triple Number Windward/Leeward High723.1
Predominantly Upwind722.5
Predominantly Downwind655.5
Predominantly Reaching635.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7273
Triple Number Coastal/Long Distance Medium0.9152
Triple Number Coastal/Long Distance High0.9973
Triple Number Windward/Leeward Low0.5657
Triple Number Windward/Leeward Medium0.7495
Triple Number Windward/Leeward High0.8298
Coastal/Long Distance0.8373
Predominantly Upwind0.8304
Predominantly Downwind0.9153
For information
General Purpose Handicap (GPH)736.0
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)0.9082
Distanseseilas Trippeltall svak vind0.7273
Distanseseilas Trippeltall mellomvind0.9152
Distanseseilas Trippeltall sterk vind0.9973
Pølsebane Trippeltall svak vind0.5657
Pølsebane Trippeltall mellomvind0.7495
Pølsebane Trippeltall sterk vind0.8298
Motvind Singeltall0.8304
Medvind Singeltall0.9153
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Coastal/Long Distance716.60.8373
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind722.50.8304
Predominantly Downwind655.50.9153
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore706.10.8497
Cape Doctor Coastal581.11.0326
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7273
Triple Number Coastal/Long Distance Medium0.9152
Triple Number Coastal/Long Distance High0.9973
Triple Number Windward/Leeward Low0.5657
Triple Number Windward/Leeward Medium0.7495
Triple Number Windward/Leeward High0.8298
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.7273
Triple Number Coastal/Long Distance Medium0.9152
Triple Number Coastal/Long Distance High0.9973
Triple Number Windward/Leeward Low0.5657
Triple Number Windward/Leeward Medium0.7495
Triple Number Windward/Leeward High0.8298
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Predominantly Upwind722.50.8304
Predominantly Downwind655.50.9153
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance716.60.8373
Triple Number Coastal/Long Distance Low825.00.7273
Triple Number Coastal/Long Distance Medium655.60.9152
Triple Number Coastal/Long Distance High601.60.9973
Triple Number Windward/Leeward Low1060.60.5657
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1742.91169.0892.2755.8682.4642.4609.1555.3542.4
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low825.00.7273
Triple Number AP Medium655.70.9151
Triple Number AP High601.60.9973
Triple Number Windward/Leeward Low1107.90.5416
Triple Number Windward/Leeward Medium800.50.7495
Triple Number Windward/Leeward High723.10.8298
Single Number Predominant Upwind751.50.7984
Single Number Predominant Reaching652.40.9198
Single Number Predominant Downwind683.70.8776
Predominant Upwind - Low996.50.6021
Predominant Upwind - Low/Med777.30.7719
Predominant Upwind - Medium702.90.8536
Predominant Upwind - Med/High672.30.8925
Predominant Upwind - High666.00.9009
Predominant Downwind Low986.70.6081
Predominant Downwind Low/Med736.80.8144
Predominant Downwind Medium634.40.9457
Predominant Downwind Med/High571.91.0492
Predominant Downwind High530.71.1306
Predominant Reaching Low879.90.6819
Predominant Reaching Low/Med685.40.8755
Predominant Reaching Medium613.80.9774
Predominant Reaching Med/High571.11.0505
Predominant Reaching High544.61.1018
SA/DSPL Upwind21.86SA/DSPL Downwind39.71
Scoring OptionTODTOT
5-Band Windward/Leeward Low1235.60.4856
5-Band Windward/Leeward Low/Med915.10.6557
5-Band Windward/Leeward Medium788.90.7605
5-Band Windward/Leeward Med/High729.50.8225
5-Band Windward/Leeward High710.10.8450
Windward/Leeward 60-40 Low1242.80.4828
Windward/Leeward 60-40 Low/Med930.20.6450
Windward/Leeward 60-40 Medium812.00.7389
Windward/Leeward 60-40 Med/High760.90.7885
Windward/Leeward 60-40 High749.90.8001
5-Band AP Low905.30.6628
5-Band AP Low/Med729.30.8227
5-Band AP Medium648.30.9254
5-Band AP Med/High607.20.9882
5-Band AP High588.41.0197
5-Band SF Bay Tour - Low1066.60.5625
5-Band SF Bay Tour - Low/Med878.40.6831
5-Band SF Bay Tour - Medium767.10.7821
5-Band SF Bay Tour - Med/High715.80.8382
5-Band SF Bay Tour - High698.00.8595
Chicago-Mac Upwind0.7785
Chicago-Mac All Purpose0.8145
Chicago-Mac Downwind0.8477
Bayview-Mac Cove Island0.6052
Bayview-Mac Shore0.6096
Harvest Moon Regatta570.01.0527
Double HandedClub Certificate2025
EXPLOSIVEX 505
Deutscher Segler Verband e.V.
Soling 16
24159 Kiel Schilksee
technik@dsv.org
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassEXPRESSMeasurement07/06/2024HIN505Plan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
LOA7.785Max. Beam2.520Draft1.451Displacement1,870Wetted area12.79IMS L6.871LSM06.734Acc. length7.785Sink (kg/mm) 9.35
VCGD-0.018VCGM0.023RM Rated (kg·m) 29.6Limit of positive stability(°) N/AStability IndexN/ADefault crew weight170Declared crew weight195
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders1Rotating mastNo
P9.500IG8.830ISP8.795MDT10.090MDL10.130MDT20.090MDL20.130TL0.000MW0.130GO0.130
E3.350J3.050BAS1.170FSD0.000SFJSPL3.170WPLTPS0.000BD0.100MWT39.00MCG4.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered-0.030Flotation Date01/01/1980
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Double HandedClub Certificate2025
EXPLOSIVEX 505
Deutscher Segler Verband e.V.
Soling 16
24159 Kiel Schilksee
technik@dsv.org
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment1779450.140.731.292.092.7618.7413/02/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment1778110.070.450.851.632.433.218.88YesNo 14.5018/03/2024
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment1778398.908.908.905.625.6041.6526/03/2024
CRUISER/RACER REQUIREMENTS*
Accommodation length7.8 mTable area0.22 m²Headroom1.40 mMinimum number of berths2Personal gear stowage0.08 m³Fresh water capacity18 lMinimum number of seats in cockpit2Food stowage0.12 m³Fuel capacity20 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.