Non Spin/HSFClub Certificate2026
Twa FamkesNED 7761
Watersportverbond
www.watersportverbond.nl
Wedstrijdsport@watersportverbond.nl
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 Angles47.2°44.5°42.1°40.5°39.5°39.0°38.8°38.9°39.9°
Beat VMG2.433.484.264.825.145.285.365.415.34
52°3.855.386.397.047.387.547.637.717.71
60°4.195.706.687.277.597.777.867.967.97
75°4.445.936.897.447.778.018.198.388.47
90°4.315.826.847.447.808.108.368.769.00
110°3.675.166.297.147.658.018.359.029.64
120°3.314.825.996.897.497.888.238.949.70
135°2.794.185.346.297.047.557.928.609.36
150°2.323.524.625.586.407.087.568.248.92
Run VMG2.013.054.004.875.666.407.037.878.52
Gybe Angles142.1°145.7°151.0°156.8°174.8°176.2°177.7°178.9°178.9°
APH ToD:565.3CDL: 10.002APH ToT: 1.0613CertNo:24358
BOAT
ClassDehler 39DesignerJudel &VrolijkBuilderDehlerAge date01/2007Series date01/1998Offset fileDEH39_19.offData fileNED7761
HULL
Length Overall11.785 mMaximum Beam3.786 mDraft1.955 mDisplacement7,566 kgDLR5.9294IMS DivisionCruiser/RacerDynamic Allowance0.280%Age Allowance0.650%RS Assessment-0.127%
PROPELLER
InstallationStrutTypeFolding 3 bladesDiameter0.430m
CREW
Maximum weight773 kg(default)Minimum weight643 kg ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail48.8149.49Headsail Luffed37.0137.01Headsail FlyingSymmetricAsymmetric
STORM SAIL AREAS Maximum (m²)
Trysail15.21Storm Jib12.89Heavy Weather Jib34.78
SAIL LIMITS
Headsails6
✱ Zero set flying
Spinnakers0
✱ Spinnaker pole aboard
STABILITY
Righting Moment 184.5 kg·m Stability Index 124.2
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.
ORC Ref  04310004JLE Issued on 01/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Twa FamkesNED 7761
Watersportverbond
www.watersportverbond.nl
Wedstrijdsport@watersportverbond.nl
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 VMG1481.71034.8845.1747.4700.8681.8671.8665.3674.4
52°934.1669.7563.5511.4487.7477.3472.0466.9467.1
60°859.8631.4538.8495.4474.4463.6458.2452.1451.8
75°811.1606.7522.3483.8463.1449.3439.5429.7424.8
90°834.9619.0526.4484.0461.3444.7430.8411.1399.8
110°980.9697.9572.5504.5470.8449.2430.9399.2373.5
120°1088.1747.2601.5522.4480.8456.7437.4402.9371.3
135°1288.4861.2673.9572.3511.1476.6454.6418.5384.7
150°1548.91021.9779.0645.2562.1508.4476.2436.7403.5
Run VMG1788.51180.0898.9739.4635.9562.5511.8457.4422.5
Selected Courses
Windward / Leeward1635.11107.4872.0743.4668.3622.1591.8561.4548.5
All purpose1207.3836.5674.6589.0541.4513.5495.1472.5458.8
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward703.40.8530
All purpose565.31.0613
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.7855
Downwind "popa"0.8424
70% up, 30% down "Ilhabela"0.8017
30% up, 70% down "Ilhabela-inverso"0.8245
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Predominantly Upwind599.31.0012
Predominantly Downwind594.11.0100
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP589.81.0173 Predom. Rc High448.61.3375 5B SF Bay L/M786.50.7629 TriNum AP Low755.50.7942 Predom. Dn Low980.40.6120 5B SF Bay Med657.60.9124 TriNum AP Med561.51.0686 Predom. Dn L/M691.80.8673 5B SF Bay M/H584.71.0262 TriNum AP High491.21.2214 Predom. Dn Med568.51.0555 5B SF Bay High555.71.0797 TriNum W/L Low1041.40.5762 Predom. Dn M/H493.21.2165 5B AP Low856.90.7002 TriNum W/L Med698.80.8586 Predom. Dn High456.71.3139 5B AP L/M648.60.9251 TriNum W/L Hig587.91.0205 ChiMac Up Low774.10.7751 5B AP Med551.91.0872 Predom. Upwind626.30.9581 ChiMac Up Med690.80.8685 5B AP M/H498.31.2041 Predom. Reaching566.31.0596 ChiMac Up High595.41.0078 5B AP High474.11.2656 Predom. Downwind627.60.9561 ChiMac Off Low824.00.7282 5B W/L Low1180.50.5083 Predom. Up Low892.60.6722 ChiMac Off Med712.10.8426 5B W/L L/M831.30.7218 Predom. Up L/M663.90.9037 ChiMac Off High581.41.0320 5B W/L Med683.70.8776 Predom. Up Med576.71.0404 ChiMac AP Low792.60.7570 5B W/L M/H598.21.0029 Predom. Up M/H533.71.1241 ChiMac AP Med696.80.8611 5B W/L High564.41.0631 Predom. Up High517.61.1591 ChiMac AP High585.41.0249 W/L 60-40 Low1164.20.5154 Predom. Rc Low821.40.7305 BayMac Cove Island925.50.6483 W/L 60-40 L/M828.50.7242 Predom. Rc L/M607.50.9877 BayMac Shore913.90.6565 W/L 60-40 Med689.90.8697 Predom. Rc Med522.11.1493 Harvest Moon495.71.2105 W/L 60-40 M/H613.60.9779 Predom. Rc M/H473.21.2680 5B SF Bay Low974.50.6157 W/L 60-40 High585.11.0254      SA/DSPL Up22.12SA/DSPL Dn22.12
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance619.8
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating619.80.9680
FinRating, kevyt tuuli1165.60.8580
FinRating, kova tuuli477.41.0473
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.9680
Triple Number Coastal/Long Distance Low0.7942
Triple Number Coastal/Long Distance Medium1.0688
Triple Number Coastal/Long Distance High1.2214
Triple Number Windward/Leeward Low0.6062
Triple Number Windward/Leeward Medium0.8586
Triple Number Windward/Leeward High1.0205
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
For information
General Purpose Handicap (GPH)640.5
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Saronikos S All Purpose639.30.9386
Saronikos S Upwind698.40.8592
Saronikos S Downwind582.71.0297
Saronikos N All Purpose680.60.8816
Saronikos N Upwind731.00.8208
Saronikos N Downwind650.20.9228
Saronikos SW All Purpose651.10.9215
Saronikos SW Upwind720.10.8332
Saronikos SW Downwind597.71.0039
Saronikos NE All Purpose718.40.8352
Saronikos NE Upwind684.60.8764
Saronikos NE Downwind745.90.8044
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose589.81.0173
5-Band All Purpose Low928.20.6464
5-Band All Purpose L/M673.90.8904
5-Band All Purpose Med570.41.0520
5-Band All Purpose M/H511.81.1722
5-Band All Purpose High485.61.2355
Single Number Predominant Upwind597.21.0047
Single Number Predominant Reaching541.11.1089
Single Number Predominant Downwind595.41.0077
5-Band 50-50 Windward/Leeward Low1180.50.5083
5-Band 50-50 Windward/Leeward L/M831.30.7218
5-Band 50-50 Windward/Leeward Med683.70.8776
5-Band 50-50 Windward/Leeward M/H598.21.0029
5-Band 50-50 Windward/Leeward High564.41.0631
5-Band 60-40 Windward/Leeward Low1164.20.5154
5-Band 60-40 Windward/Leeward L/M828.50.7242
5-Band 60-40 Windward/Leeward Med689.90.8697
5-Band 60-40 Windward/Leeward M/H613.60.9779
5-Band 60-40 Windward/Leeward High585.11.0254
Triple Number 50-50 Windward/Leeward Low1041.40.5762
Triple Number 50-50 Windward/Leeward Med698.90.8585
Triple Number 50-50 Windward/Leeward High588.01.0205
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward709.30.8459
Triple Number 60-40 Windward/Leeward Low1030.00.5825
Triple Number 60-40 Windward/Leeward Med703.90.8524
Triple Number 60-40 Windward/Leeward High604.70.9921
Triple Number All-Purpose Low826.00.7264
Triple Number All-Purpose Med580.81.0331
Triple Number All-Purpose High504.21.1901
Triple Number Predominant Upwind Low810.90.7399
Triple Number Predominant Upwind Med588.41.0197
Triple Number Predominant Upwind High531.81.1282
Triple Number Predominant Reaching Low739.10.8118
Triple Number Predominant Reaching Med538.91.1135
Triple Number Predominant Reaching High457.71.3109
Triple Number Predominant Downwind Low862.00.6961
Triple Number Predominant Downwind Med584.61.0263
Triple Number Predominant Downwind High475.91.2607
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low755.5
Triple Number Coastal/Long Distance Medium561.4
Triple Number Coastal/Long Distance High491.2
Triple Number Windward/Leeward Low989.8
Triple Number Windward/Leeward Medium698.8
Triple Number Windward/Leeward High587.9
Predominantly Upwind599.3
Predominantly Downwind594.1
Predominantly Reaching557.8
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7942
Triple Number Coastal/Long Distance Medium1.0688
Triple Number Coastal/Long Distance High1.2214
Triple Number Windward/Leeward Low0.6062
Triple Number Windward/Leeward Medium0.8586
Triple Number Windward/Leeward High1.0205
Coastal/Long Distance0.9680
Predominantly Upwind1.0012
Predominantly Downwind1.0100
For information
General Purpose Handicap (GPH)640.5
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)1.0613
Distanseseilas Trippeltall svak vind0.7942
Distanseseilas Trippeltall mellomvind1.0688
Distanseseilas Trippeltall sterk vind1.2214
Pølsebane Trippeltall svak vind0.6062
Pølsebane Trippeltall mellomvind0.8586
Pølsebane Trippeltall sterk vind1.0205
Motvind Singeltall1.0012
Medvind Singeltall1.0100
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Coastal/Long Distance619.80.9680
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind599.31.0012
Predominantly Downwind594.11.0100
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore552.41.0863
Cape Doctor Coastal462.91.2961
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7942
Triple Number Coastal/Long Distance Medium1.0688
Triple Number Coastal/Long Distance High1.2214
Triple Number Windward/Leeward Low0.6062
Triple Number Windward/Leeward Medium0.8586
Triple Number Windward/Leeward High1.0205
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.7942
Triple Number Coastal/Long Distance Medium1.0688
Triple Number Coastal/Long Distance High1.2214
Triple Number Windward/Leeward Low0.6062
Triple Number Windward/Leeward Medium0.8586
Triple Number Windward/Leeward High1.0205
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Predominantly Upwind599.31.0012
Predominantly Downwind594.11.0100
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance619.80.9680
Triple Number Coastal/Long Distance Low755.50.7942
Triple Number Coastal/Long Distance Medium561.41.0688
Triple Number Coastal/Long Distance High491.21.2214
Triple Number Windward/Leeward Low989.80.6062
Triple Number Windward/Leeward Medium698.80.8586
Triple Number Windward/Leeward High587.91.0205
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1650.41114.7819.9667.5579.4533.6500.7451.9435.8
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP589.81.0173 Predom. Dn High456.71.3139 5B AP M/H498.31.2041 TriNum AP Low755.50.7942 Predom. Rc Low821.40.7305 5B AP High474.11.2656 TriNum AP Med561.51.0686 Predom. Rc L/M607.50.9877 5B SF Bay Low974.50.6157 TriNum AP High491.21.2214 Predom. Rc Med522.11.1493 5B SF Bay L/M786.50.7629 TriNum W/L Low1041.40.5762 Predom. Rc M/H473.21.2680 5B SF Bay Med657.60.9124 TriNum W/L Med698.80.8586 Predom. Rc High448.61.3375 5B SF Bay M/H584.71.0262 TriNum W/L Hig587.91.0205 5B W/L Low1180.50.5083 5B SF Bay High555.71.0797 Predom. Upwind626.30.9581 5B W/L L/M831.30.7218 ChiMac Up Low774.10.7751 Predom. Reaching566.31.0596 5B W/L Med683.70.8776 ChiMac Up Med690.80.8685 Predom. Downwind627.60.9561 5B W/L M/H598.21.0029 ChiMac Up High595.41.0078 Predom. Up Low892.60.6722 5B W/L High564.41.0631 ChiMac Off Low824.00.7282 Predom. Up L/M663.90.9037 W/L 60-40 Low1164.20.5154 ChiMac Off Med712.10.8426 Predom. Up Med576.71.0404 W/L 60-40 L/M828.50.7242 ChiMac Off High581.41.0320 Predom. Up M/H533.71.1241 W/L 60-40 Med689.90.8697 ChiMac AP Low792.60.7570 Predom. Up High517.61.1591 W/L 60-40 M/H613.60.9779 ChiMac AP Med696.80.8611 Predom. Dn Low980.40.6120 W/L 60-40 High585.11.0254 ChiMac AP High585.41.0249 Predom. Dn L/M691.80.8673 5B AP Low856.90.7002 BayMac Cove Island925.50.6483 Predom. Dn Med568.51.0555 5B AP L/M648.60.9251 BayMac Shore913.90.6565 Predom. Dn M/H493.21.2165 5B AP Med551.91.0872 Harvest Moon495.71.2105      SA/DSPL Up22.12SA/DSPL Dn22.12
ORC Ref  04310004JLE Issued on 01/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Twa FamkesNED 7761
Watersportverbond
www.watersportverbond.nl
Wedstrijdsport@watersportverbond.nl
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDehler 39Measurement15/06/2007HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall11.785Maximum beam3.786Draft1.955Displacement7,566Wetted area31.07IMS L10.923LSM010.845Accomod. length11.785Sink (kg/mm) 23.05
VCGD-0.248VCGM-0.015 RM Rated (kg·m) 184.5Limit of positive stability(°) 120.7 Stability Index 124.2 BLR index 0.0000Default crew weight773 Declared crew weight 0
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeFolding 3 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.430PBWPIPA0.0037
EDL2.360ST10.042ST2
ST3ST40.112ST50.280
RIG
BackstayAdjustableForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders2Rotating mastNo
P15.600IG16.050ISP16.450MDT10.119MDL10.229MDT2MDL2TLTaperMWGO
E5.570J4.400BAS1.650FSDFoilSFJ0.030SPL4.698WPLTPS4.861BDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodPoles incliningFlotation Date15/06/2007
SFFP0.258FFM1.401FF1.417LCFcl6.498SG1.0000
SAFP11.419FAM1.141FA1.153LCFsh6.759HBI1.272
W127.0W254.0W381.0W4108.0
PD164.0PD2126.7PD3190.7PD4253.3
WD12.500PLM2000.00GSA78.5RSA5026.5RM184.1
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04310004JLE Issued on 01/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org
Non Spin/HSFClub Certificate2026
Twa FamkesNED 7761
Watersportverbond
www.watersportverbond.nl
Wedstrijdsport@watersportverbond.nl
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment20220.161.031.863.294.4948.81
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20220.080.691.282.423.534.6615.46NoNo 37.01
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length11.8 mTable area0.55 m²Headroom1.80 mMinimum number of berths5Personal gear stowage0.20 m³Fresh water capacity145 lMinimum number of seats in cockpit5Food stowage0.30 m³Fuel capacity86 lCabin soleStovesSinksGalley gear stowageToiletWash basinNavigation areaHanging locker
*This list is a summary of the requirements. See IMS Appendix 1 for details.
ORC Ref  04310004JLE Issued on 01/04/2026 Valid until 31/03/2027
VPP ver: 2026 1.00 | © ORC | www.orc.org