Club
Certificate
Double Handed
2023

Boat

KESSU

EST 877

Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles43.8°41.8°40.8°40.6°40.5°40.2°41.2°
Beat VMG2.613.153.523.773.913.963.92
52°3.984.705.185.475.635.715.73
60°4.194.915.375.625.785.885.94
75°4.335.075.525.775.946.086.24
90°4.385.235.695.946.056.156.44
110°4.515.375.826.106.346.566.82
120°4.395.285.786.086.346.627.12
135°3.984.915.565.936.216.507.14
150°3.444.375.135.645.976.246.80
Run VMG2.983.794.475.065.545.876.39
Gybe Angles148.0°152.0°155.6°165.8°177.2°179.0°179.0°

APH: 714.4

CDL: 5.628

GPH: 801.3

CertNo: 029/21

BOAT
ClassBECKER 27DesignerBuilderBK MarinAge date01/1978Series date01/1974Offset fileBecker27 2013-05-11_3.offData fileEST877
HULL
Length Overall8.120 mMaximum Beam2.774 mDraft1.429 mDisplacement2,730 kgDLR11.1697IMS DivisionCruiser/RacerDynamic Allowance0.670%Age Allowance0.487%
PROPELLER
InstallationShaft exposedTypeFolding 2 bladesDiameter0.340m
CREW
Maximum weight180 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail13.0913.45Headsail Luffed18.8318.83Headsail FlyingSymmetric45.0145.01Asymmetric
STORM SAIL AREAS (m²)
Trysail3.97Storm Jib4.86Heavy Weather Jib13.10
SAIL LIMITS
Headsails1 * 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.
ORC Ref  04340002M10Issued on 17/05/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

KESSU

EST 877

Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG1380.51142.81023.3956.1921.5910.0918.3
52°904.0765.3694.3658.5639.4630.4627.9
60°858.4732.8671.0640.3622.3611.9606.3
75°831.0709.4652.7624.2605.6591.9576.5
90°822.4688.3632.2606.3594.8585.0559.3
110°798.7670.5619.0589.9567.4549.0528.0
120°820.4681.4623.3592.1567.4544.1505.4
135°904.5733.8647.4607.2579.3553.9504.0
150°1046.1824.7702.3638.1603.5577.3529.0
Run VMG1207.9950.8805.0710.8649.7612.9563.7
Selected Courses
Windward / Leeward1294.21046.8914.2833.5785.6761.5741.0
All purpose1004.5826.9737.7688.7660.2642.7621.6
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward872.60.6876
All purpose714.40.8398
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.5791
Downwind "popa"0.7635
70% up, 30% down "Ilhabela"0.6244
30% up, 70% down "Ilhabela-inverso"0.6969
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Predominantly Upwind781.70.7675
Predominantly Downwind711.10.8438
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low915.60.6553
Triple Number All Purpose Medium709.40.8458
Triple Number All Purpose High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Predominantly Upwind781.70.7675
Predominantly Downwind711.10.8438
Predominantly Upwind Low1039.30.5773
Predominantly Upwind Medium814.90.7363
Predominantly Upwind High757.20.7924
Predominantly Downwind Low973.50.6163
Predominantly Downwind Medium694.60.8638
Predominantly Downwind High590.31.0164
Chicago-Mac Upwind0.7520
Chicago-Mac All Purpose0.7873
Chicago-Mac Downwind0.8297
Bayview-Mac Cove Island0.7303
Bayview-Mac Shore0.7324
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching677.20.8860
Predominantly Reaching Low827.40.7251
Predominantly Reaching Medium668.60.8975
Predominantly Reaching High597.21.0047
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1275.10.4705
5-Band Low / Medium1071.40.5600
5-Band Medium850.60.7053
5-Band Medium / High768.10.7812
5-Band High744.50.8059
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance775.5
Triple Number Coastal/Long Distance Low915.6
Triple Number Coastal/Long Distance Medium709.4
Triple Number Coastal/Long Distance High639.2
Triple Number Windward/Leeward Low1170.5
Triple Number Windward/Leeward Medium866.2
Triple Number Windward/Leeward High759.8
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6553
Triple Number Coastal/Long Distance Medium0.8458
Triple Number Coastal/Long Distance High0.9387
Triple Number Windward/Leeward Low0.5126
Triple Number Windward/Leeward Medium0.6927
Triple Number Windward/Leeward High0.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low915.6
Triple Number Coastal/Long Distance Medium709.4
Triple Number Coastal/Long Distance High639.2
Triple Number Windward/Leeward Low1170.5
Triple Number Windward/Leeward Medium866.2
Triple Number Windward/Leeward High759.8
Predominantly Upwind781.7
Predominantly Downwind711.1
Predominantly Reaching689.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6553
Triple Number Coastal/Long Distance Medium0.8458
Triple Number Coastal/Long Distance High0.9387
Triple Number Windward/Leeward Low0.5126
Triple Number Windward/Leeward Medium0.6927
Triple Number Windward/Leeward High0.7897
Coastal/Long Distance0.7737
Predominantly Upwind0.7675
Predominantly Downwind0.8438
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.6553
Tretall Distanseseilas Mellomvind0.8458
Tretall Distanseseilas Mye vind0.9387
Tretall Pølsebane Lite vind0.5126
Tretall Pølsebane Mellomvind0.6927
Tretall Pølsebane Mye vind0.7897
Distanseseilas ett tall (OSN 8-16kn)0.7737
Distanseseilas ett tall (APH 6-20kn)0.8398
Enkeltall Motvind0.7675
Enkeltall Medvind0.8438
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Coastal/Long Distance775.50.7737
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind781.70.7675
Predominantly Downwind711.10.8438
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore747.10.8031
Cape Doctor Coastal627.90.9555
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6553
Triple Number Coastal/Long Distance Medium0.8458
Triple Number Coastal/Long Distance High0.9387
Triple Number Windward/Leeward Low0.5126
Triple Number Windward/Leeward Medium0.6927
Triple Number Windward/Leeward High0.7897
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.6553
Triple Number Coastal/Long Distance Medium0.8458
Triple Number Coastal/Long Distance High0.9387
Triple Number Windward/Leeward Low0.5126
Triple Number Windward/Leeward Medium0.6927
Triple Number Windward/Leeward High0.7897
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Predominantly Upwind781.70.7675
Predominantly Downwind711.10.8438
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance775.50.7737
Triple Number Coastal/Long Distance Low915.60.6553
Triple Number Coastal/Long Distance Medium709.40.8458
Triple Number Coastal/Long Distance High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance1285.5983.8826.6734.7684.7648.8590.9
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low915.60.6553
Triple Number All Purpose Medium709.40.8458
Triple Number All Purpose High639.20.9387
Triple Number Windward/Leeward Low1170.50.5126
Triple Number Windward/Leeward Medium866.20.6927
Triple Number Windward/Leeward High759.80.7897
Predominantly Upwind781.70.7675
Predominantly Downwind711.10.8438
Predominantly Upwind Low1039.30.5773
Predominantly Upwind Medium814.90.7363
Predominantly Upwind High757.20.7924
Predominantly Downwind Low973.50.6163
Predominantly Downwind Medium694.60.8638
Predominantly Downwind High590.31.0164
Chicago-Mac Upwind0.7520
Chicago-Mac All Purpose0.7873
Chicago-Mac Downwind0.8297
Bayview-Mac Cove Island0.7303
Bayview-Mac Shore0.7324
Harvest Moon Regatta619.20.9689
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy750.00.8000
San Francisco Bay Medium863.80.6946
Predominantly Reaching677.20.8860
Predominantly Reaching Low827.40.7251
Predominantly Reaching Medium668.60.8975
Predominantly Reaching High597.21.0047
Windward/Leeward 60-40 Low1188.70.5048
Windward/Leeward 60-40 Medium906.70.6617
Windward/Leeward 60-40 High812.90.7381
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low1275.10.4705
5-Band Low / Medium1071.40.5600
5-Band Medium850.60.7053
5-Band Medium / High768.10.7812
5-Band High744.50.8059
ORC Ref  04340002M10Issued on 17/05/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

KESSU

EST 877

Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassBECKER 27MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA8.120Max. Beam2.774Draft1.429Displacement2,730Wetted area14.59IMS L6.377LSM06.252Acc. length8.120Sink (kg/mm) 10.22
VCGD-0.019VCGM0.032RM Rated (kg·m) 41.8Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationShaft exposedTwin screwNoHydro generatorNo
PRD0.340PBWPIPA0.0011
PSDPHDPHL
PSAESL
ST1ST2ST3
ST4ST5
RIG
Forestay tensionAftInner stayNone FittedCarbon mastNoHeadsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders1Rotating mastNo
P8.720IG9.850ISP9.850MDT10.100MDL10.180MDT2MDL2TLMWGO
E2.600J3.200BAS1.150FSDSFJSPL3.280WPLTPSBDMWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM estimatedFlotation Date17/10/2019MeasurerComment
SFFP0.356FFMFF1.110LCFcl4.631SG1.0260
SAFP7.724FAMFA0.645LCFsh4.817HBI0.915
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  04340002M10Issued on 17/05/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

KESSU

EST 877

Estonian Yachting Union
Purje 8, maja 3
11911 Tallinn
Estonia
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment10.130.520.911.582.1513.09
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment20.070.460.901.892.984.059.60NoNo 18.8309/05/2022
SYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLAreaMeas.DateComment09.479.479.475.725.6445.0122/05/201819.459.459.455.705.6544.81
ORC Ref  04340002M10Issued on 17/05/2023Valid until 31/12/2023
VPP ver: 2023 1.02 | © ORC | www.orc.org