Club Certificate2026
ARAOKESP-7627_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
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 Angles47.1°44.4°42.8°41.7°40.1°38.5°37.5°37.7°39.4°
Beat VMG1.932.783.383.834.184.434.604.674.56
52°3.054.275.115.665.996.206.356.486.46
60°3.294.515.355.856.146.346.506.696.72
75°3.454.665.495.986.276.486.677.007.19
90°3.344.575.536.126.456.706.907.157.51
110°3.304.635.606.176.526.857.177.748.10
120°3.164.475.466.086.466.797.137.798.38
135°2.804.065.045.806.266.596.927.628.31
150°2.363.514.505.315.926.316.627.267.91
Run VMG2.043.043.904.645.275.786.176.747.33
Gybe Angles144.9°148.3°151.9°155.5°161.7°167.8°176.3°177.9°177.2°
APH ToD:661.9CDL: 6.549APH ToT: 0.9065CertNo:762701
BOAT
ClassDUFOUR 28DesignerFarouxBuilderDUFOURAge date05/1981Series date01/1980Offset fileE192.BOFData fileE7627_C
HULL
Length Overall8.491Maximum Beam3.084Draft1.605Displacement2,722DLR8.3337IMS DivisionCruiser/RacerDynamic Allowance0.390%Age Allowance0.650%RS Assessment0.000%
PROPELLER
InstallationShaft non exposedTypeSolid 3 bladesDiameter0.300m
CREW
Maximum weight450(declared)Minimum weight320 ✱ when appliedCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail16.1416.45Headsail Luffed22.7022.70Headsail FlyingSymmetric37.6945.37Asymmetric
STORM SAIL AREAS Maximum (m²)
Trysail4.73Storm Jib5.59Heavy Weather Jib15.10
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting Moment 68.5 Stability Index 128.9
COMMENTS
MEDIDAS RI
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  03510004BFD Issued on 13/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ARAOKESP-7627_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
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 VMG1864.01296.61065.0939.9861.8811.8782.8771.2790.2
52°1181.0842.8704.5635.6600.9580.3566.8555.2557.0
60°1095.4797.8673.3615.5586.4568.0554.1537.7536.1
75°1044.0772.2655.5601.6574.4555.5539.6514.4501.0
90°1076.6787.6650.7588.5558.2537.5521.4503.7479.3
110°1090.5776.8642.8583.2551.8525.9502.0464.9444.6
120°1138.9804.6659.9591.6556.9530.4505.1461.9429.7
135°1287.6887.6713.7620.9575.3546.5520.4472.5433.4
150°1526.41025.1800.3677.5607.9570.3544.0496.1455.3
Run VMG1762.51183.7922.6776.4682.6622.9583.9534.1491.0
Selected Courses
Windward / Leeward1813.21240.1993.8858.2772.2717.3683.4652.6640.6
All purpose1374.6960.7782.7690.3637.4603.6579.9551.6536.4
Single Number Scoring Options
Course Time On
Distance 		Time On
Time
Windward / Leeward809.10.7415
All purpose661.90.9065
Custom scoring options for Australia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Custom scoring options for Austria
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Brazil
Scoring Option Time On
Time
Upwind "bolina"0.6433
Downwind "popa"0.7915
70% up, 30% down "Ilhabela"0.6816
30% up, 70% down "Ilhabela-inverso"0.7403
Custom scoring options for Bulgaria
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Predominantly Upwind718.00.8357
Predominantly Downwind671.10.8940
Custom scoring options for Canada
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP687.20.8731 Predom. Rc High529.01.1343 5B SF Bay L/M908.80.6602 TriNum AP Low871.70.6883 Predom. Dn Low1057.70.5673 5B SF Bay Med764.60.7847 TriNum AP Med658.70.9108 Predom. Dn L/M765.70.7836 5B SF Bay M/H677.20.8860 TriNum AP High575.21.0431 Predom. Dn Med644.70.9307 5B SF Bay High643.90.9319 TriNum W/L Low1173.00.5115 Predom. Dn M/H570.91.0509 5B AP Low972.60.6169 TriNum W/L Med805.60.7448 Predom. Dn High531.31.1294 5B AP L/M754.90.7948 TriNum W/L Hig680.30.8819 ChiMac Up Low932.80.6433 5B AP Med647.80.9262 Predom. Upwind750.20.7997 ChiMac Up Med830.60.7224 5B AP M/H584.01.0274 Predom. Reaching663.20.9048 ChiMac Up High712.20.8425 5B AP High553.91.0833 Predom. Downwind703.80.8526 ChiMac Off Low900.00.6667 5B W/L Low1321.80.4539 Predom. Up Low1074.10.5586 ChiMac Off Med788.10.7614 5B W/L L/M949.60.6319 Predom. Up L/M801.70.7484 ChiMac Off High656.70.9136 5B W/L Med788.40.7610 Predom. Up Med692.60.8663 ChiMac AP Low912.00.6579 5B W/L M/H691.40.8678 Predom. Up M/H630.60.9515 ChiMac AP Med806.10.7443 5B W/L High655.90.9148 Predom. Up High608.40.9863 ChiMac AP High682.40.8793 W/L 60-40 Low1333.60.4499 Predom. Rc Low950.30.6314 BayMac Cove Island1052.00.5703 W/L 60-40 L/M964.70.6220 Predom. Rc L/M708.80.8465 BayMac Shore1044.00.5747 W/L 60-40 Med806.10.7443 Predom. Rc Med614.00.9772 Harvest Moon581.01.0328 W/L 60-40 M/H711.60.8432 Predom. Rc M/H558.41.0745 5B SF Bay Low1114.30.5385 W/L 60-40 High680.00.8824      SA/DSPL Up19.86SA/DSPL Dn27.52
Custom scoring options for Cyprus
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Denmark
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Spain
Scoring Option Time On
Distance
Coastal/Long Distance719.9
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Estonia
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Custom scoring options for Finland
Scoring Option Time On
Distance 		Time On
Time
FinRating719.90.8334
FinRating, kevyt tuuli1304.30.7667
FinRating, kova tuuli558.40.8954
Custom scoring options for France
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Custom scoring options for Germany
Scoring Option Time On
Time
Coastal/Long Distance0.8334
Triple Number Coastal/Long Distance Low0.6883
Triple Number Coastal/Long Distance Medium0.9109
Triple Number Coastal/Long Distance High1.0431
Triple Number Windward/Leeward Low0.5372
Triple Number Windward/Leeward Medium0.7448
Triple Number Windward/Leeward High0.8819
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
For information
General Purpose Handicap (GPH)747.3
Custom scoring options for Greece
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Saronikos S All_Purpose766.60.7827
Saronikos S Upwind869.50.6901
Saronikos S Downwind645.20.9299
Saronikos N All_Purpose766.60.7827
Saronikos N Upwind905.00.6630
Saronikos N Downwind707.90.8476
Saronikos SW All_Purpose779.50.7698
Saronikos SW Upwind901.10.6659
Saronikos SW Downwind659.00.9104
Saronikos NE All_Purpose834.60.7189
Saronikos NE Upwind850.90.7051
Saronikos NE Downwind802.10.7480
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Hungary
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Custom scoring options for Ireland
Scoring OptionTODTOT
Single Number All-Purpose687.20.8731
5-Band All-Purpose Low1061.20.5654
5-Band All-Purpose L/M781.20.7681
5-Band All-Purpose Med667.00.8995
5-Band All-Purpose M/H599.71.0005
5-Band All-Purpose High569.21.0542
Single Number Predominant Upwind716.80.8370
Single Number Predominant Reaching635.00.9449
Single Number Predominant Downwind671.30.8938
5-Band 50-50 Windward/Leeward Low1321.80.4539
5-Band 50-50 Windward/Leeward L/M949.60.6319
5-Band 50-50 Windward/Leeward Med788.40.7610
5-Band 50-50 Windward/Leeward M/H691.40.8678
5-Band 50-50 Windward/Leeward High655.90.9148
5-Band 60-40 Windward/Leeward Low1333.60.4499
5-Band 60-40 Windward/Leeward L/M964.70.6220
5-Band 60-40 Windward/Leeward Med806.10.7443
5-Band 60-40 Windward/Leeward M/H711.60.8432
5-Band 60-40 Windward/Leeward High680.00.8824
Triple Number 50-50 Windward/Leeward Low1173.00.5115
Triple Number 50-50 Windward/Leeward Med805.70.7447
Triple Number 50-50 Windward/Leeward High680.30.8819
Scoring OptionTODTOT
Single Number 60-40 Windward/Leeward826.70.7258
Triple Number 60-40 Windward/Leeward Low1185.70.5060
Triple Number 60-40 Windward/Leeward Med823.10.7290
Triple Number 60-40 Windward/Leeward High701.40.8554
Triple Number All-Purpose Low948.50.6326
Triple Number All-Purpose Med678.70.8841
Triple Number All-Purpose High590.81.0155
Triple Number Predominant Upwind Low972.20.6171
Triple Number Predominant Upwind Med707.60.8479
Triple Number Predominant Upwind High628.60.9545
Triple Number Predominant Reaching Low857.90.6994
Triple Number Predominant Reaching Med633.70.9469
Triple Number Predominant Reaching High541.21.1086
Triple Number Predominant Downwind Low940.10.6382
Triple Number Predominant Downwind Med656.80.9135
Triple Number Predominant Downwind High550.61.0897
Custom scoring options for Israel
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Japan
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Korea
Scoring Option Time On
Distance
Triple Number Coastal/Long Distance Low871.7
Triple Number Coastal/Long Distance Medium658.7
Triple Number Coastal/Long Distance High575.2
Triple Number Windward/Leeward Low1116.9
Triple Number Windward/Leeward Medium805.6
Triple Number Windward/Leeward High680.3
Predominantly Upwind718.0
Predominantly Downwind671.1
Predominantly Reaching645.1
Custom scoring options for Lithuania
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Netherlands
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6883
Triple Number Coastal/Long Distance Medium0.9109
Triple Number Coastal/Long Distance High1.0431
Triple Number Windward/Leeward Low0.5372
Triple Number Windward/Leeward Medium0.7448
Triple Number Windward/Leeward High0.8819
Coastal/Long Distance0.8334
Predominantly Upwind0.8357
Predominantly Downwind0.8940
For information
General Purpose Handicap (GPH)747.3
Custom scoring options for Norway
Scoring Option Time On
Time
Distanseseilas Singeltall  (APH)0.9065
Distanseseilas Trippeltall svak vind0.6883
Distanseseilas Trippeltall mellomvind0.9109
Distanseseilas Trippeltall sterk vind1.0431
Pølsebane Trippeltall svak vind0.5372
Pølsebane Trippeltall mellomvind0.7448
Pølsebane Trippeltall sterk vind0.8819
Motvind Singeltall0.8357
Medvind Singeltall0.8940
Custom scoring options for Portugal
Scoring Option Time On
Distance 		Time On
Time
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Coastal/Long Distance719.90.8334
Custom scoring options for Russia
Scoring Option Time On
Distance 		Time On
Time
Predominantly Upwind718.00.8357
Predominantly Downwind671.10.8940
Custom scoring options for South Africa
Scoring Option Time On
Distance 		Time On
Time
Cape Doctor Inshore644.20.9314
Cape Doctor Coastal540.91.1092
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Custom scoring options for Slovenia
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6883
Triple Number Coastal/Long Distance Medium0.9109
Triple Number Coastal/Long Distance High1.0431
Triple Number Windward/Leeward Low0.5372
Triple Number Windward/Leeward Medium0.7448
Triple Number Windward/Leeward High0.8819
Custom scoring options for Switzerland
Scoring Option Time On
Time
Triple Number Coastal/Long Distance Low0.6883
Triple Number Coastal/Long Distance Medium0.9109
Triple Number Coastal/Long Distance High1.0431
Triple Number Windward/Leeward Low0.5372
Triple Number Windward/Leeward Medium0.7448
Triple Number Windward/Leeward High0.8819
Custom scoring options for Sweden
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Predominantly Upwind718.00.8357
Predominantly Downwind671.10.8940
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for Ukraine
Scoring Option Time On
Distance 		Time On
Time
Coastal/Long Distance719.90.8334
Triple Number Coastal/Long Distance Low871.70.6883
Triple Number Coastal/Long Distance Medium658.70.9109
Triple Number Coastal/Long Distance High575.21.0431
Triple Number Windward/Leeward Low1116.90.5372
Triple Number Windward/Leeward Medium805.60.7448
Triple Number Windward/Leeward High680.30.8819
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1808.21234.5934.2775.1679.5625.8586.6530.8511.0
Custom scoring options for United States of America
Scoring OptionTODTOT Scoring OptionTODTOT Scoring OptionTODTOT Single Number AP687.20.8731 Predom. Dn High531.31.1294 5B AP M/H584.01.0274 TriNum AP Low871.70.6883 Predom. Rc Low950.30.6314 5B AP High553.91.0833 TriNum AP Med658.70.9108 Predom. Rc L/M708.80.8465 5B SF Bay Low1114.30.5385 TriNum AP High575.21.0431 Predom. Rc Med614.00.9772 5B SF Bay L/M908.80.6602 TriNum W/L Low1173.00.5115 Predom. Rc M/H558.41.0745 5B SF Bay Med764.60.7847 TriNum W/L Med805.60.7448 Predom. Rc High529.01.1343 5B SF Bay M/H677.20.8860 TriNum W/L Hig680.30.8819 5B W/L Low1321.80.4539 5B SF Bay High643.90.9319 Predom. Upwind750.20.7997 5B W/L L/M949.60.6319 ChiMac Up Low932.80.6433 Predom. Reaching663.20.9048 5B W/L Med788.40.7610 ChiMac Up Med830.60.7224 Predom. Downwind703.80.8526 5B W/L M/H691.40.8678 ChiMac Up High712.20.8425 Predom. Up Low1074.10.5586 5B W/L High655.90.9148 ChiMac Off Low900.00.6667 Predom. Up L/M801.70.7484 W/L 60-40 Low1333.60.4499 ChiMac Off Med788.10.7614 Predom. Up Med692.60.8663 W/L 60-40 L/M964.70.6220 ChiMac Off High656.70.9136 Predom. Up M/H630.60.9515 W/L 60-40 Med806.10.7443 ChiMac AP Low912.00.6579 Predom. Up High608.40.9863 W/L 60-40 M/H711.60.8432 ChiMac AP Med806.10.7443 Predom. Dn Low1057.70.5673 W/L 60-40 High680.00.8824 ChiMac AP High682.40.8793 Predom. Dn L/M765.70.7836 5B AP Low972.60.6169 BayMac Cove Island1052.00.5703 Predom. Dn Med644.70.9307 5B AP L/M754.90.7948 BayMac Shore1044.00.5747 Predom. Dn M/H570.91.0509 5B AP Med647.80.9262 Harvest Moon581.01.0328      SA/DSPL Up19.86SA/DSPL Dn27.52
ORC Ref  03510004BFD Issued on 13/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ARAOKESP-7627_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassDUFOUR 28MeasurementHINPlan reviewHull constructionSolidCarbon rudderNoLight stanchionsNoTrim tabNo
Length overall8.491Maximum beam3.084Draft1.605Displacement2,722Wetted area15.40IMS L7.094LSM06.886Accomod. length8.387Sink (kg/mm) 11.24
VCGD-0.444VCGM-0.360 RM Rated (kg·m) 68.5Limit of positive stability(°) 134.5 Stability Index 128.9 BLR index 0.0000Default crew weight404 Declared crew weight 450
Centerboard weightList angleCanting keel angle
PROPELLER
Propeller TypeSolid 3 blades
InstallationShaft non exposedTwin screwNoHydro generatorNo
PRD0.300PBWPIPA0.0054
PSD0.025PHD0.075PHL0.185
PSA17.0°ESL0.180
RIG
BackstayFixedForestayFixedInner forestayNot installedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoBase of mastFixedRunning backstaysNoCheckstaysNoSpreaders1Rotating mastNo
P9.000IG10.573ISP10.600MDT10.100MDL10.110MDT2MDL2TLMWGO
E3.000J3.350BAS1.400FSD0.050SFJSPL3.580WPLTPSBDMWTMCG
PYMDT1YMDL1YMDT2YMDL2YTLYBASYEYBDYIYEB
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered70.0Flotation Date01/01/2010
SFFP0.531FFMFF1.053LCFcl4.684SG
SAFP7.528FAMFA1.011LCFsh4.917HBI0.975
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03510004BFD Issued on 13/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org
Club Certificate2026
ARAOKESP-7627_C
RFEV
c/ Gamazo sn
39004 Santander – España
crucero@rfev.es
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment0010.771.201.8016.14RI
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment0014.559.80NoNo 22.70RI
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment0019.459.459.454.804.7337.69RI
NON MANUAL POWER CONTROLS (NMP)
SheetsNoMainsail cunninghamNoJib trackNoSpinnaker retrieverNoBoomvangNoHeadsail cunninghamNoTack lineNoOuthaulNoMain travellerNoHalyardsNo
CRUISER/RACER REQUIREMENTS*
Accommodation length8.4 mTable area0.33 m²Headroom1.40 mMinimum number of berths3Personal gear stowage0.12 m³Fresh water capacity36 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.
ORC Ref  03510004BFD Issued on 13/02/2026 Valid until 31/12/2026
VPP ver: 2026 1.00 | © ORC | www.orc.org