Club
Certificate
Double Handed
2023

Boat

Elbåden Silent Sea

NOR 10804

Norges Seilforbund
Sognsveien 73
0854 OSLO
Rated boat velocities in knots
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat Angles45.3°43.0°42.0°40.6°40.5°40.5°40.8°
Beat VMG3.644.444.905.215.355.415.42
52°5.676.767.377.667.847.948.00
60°6.077.147.737.998.158.258.33
75°6.437.488.068.378.558.668.80
90°6.437.508.138.528.809.029.29
110°6.047.358.158.628.979.199.57
120°5.897.218.088.619.049.4410.02
135°5.296.647.678.338.809.2510.20
150°4.475.716.797.648.198.569.23
Run VMG3.874.955.886.627.097.478.43
Gybe Angles143.0°146.9°148.3°149.4°150.1°169.4°176.3°

APH: 515.6

CDL: 11.000

GPH: 579.0

CertNo: 7998

BOAT
ClassFirst 47.7DesignerBruce FarrBuilderBeneteauAge date01/2002Series date01/2000Offset fileF191.OFFData file7998
HULL
Length Overall14.500 mMaximum Beam4.512 mDraft2.289 mDisplacement12,074 kgDLR6.0703IMS DivisionCruiser/RacerDynamic Allowance0.250%Age Allowance0.487%
PROPELLER
InstallationStrutTypeFolding 2 bladesDiameter0.440m
CREW
Maximum weight170 kgMinimum weight120 kg * when appliedNon Manual PowerNoCrew Arm Extension
SAIL AREAS (m²)
MeasuredRatedMainsail60.9563.04Headsail Luffed41.8741.87Headsail Flying69.1269.12SymmetricAsymmetric149.00149.00 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail17.91Storm Jib14.50Heavy Weather Jib39.15
SAIL LIMITS
Headsails6  Spinnakers5
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  03440002ERDIssued on 28/03/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Elbåden Silent Sea

NOR 10804

Norges Seilforbund
Sognsveien 73
0854 OSLO
Time Allowances in secs/NM
Wind Velocity6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Beat VMG990.3811.7734.1691.2673.5665.2664.6
52°634.8532.2488.4470.0459.2453.5450.0
60°592.8504.2465.8450.3441.9436.6432.3
75°559.7481.5446.7429.9421.3415.8409.2
90°560.0480.2442.5422.5409.1399.2387.5
110°595.9490.1441.5417.7401.5391.7376.0
120°611.4499.2445.5418.1398.3381.5359.4
135°680.6542.2469.4432.2409.0389.1353.0
150°806.0630.2530.3471.3439.8420.5390.1
Run VMG930.7727.7612.3544.2507.8482.2427.2
Selected Courses
Windward / Leeward960.5769.7673.2617.7590.6573.7545.9
All purpose731.0596.8531.3496.0477.1464.6447.7
Single Number Scoring Options
CourseTime On
Distance		Time On
Time
Windward / Leeward647.70.9263
All purpose515.61.1638
 
Custom scoring options for Australia
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Custom scoring options for Austria
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.8030
Downwind "popa"0.9924
70% up, 30% down "Ilhabela"0.8517
30% up, 70% down "Ilhabela-inverso"0.9268
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Predominantly Upwind561.01.0695
Predominantly Downwind520.31.1532
Custom scoring options for Canada
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low663.90.9038
Triple Number All Purpose Medium511.51.1731
Triple Number All Purpose High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Predominantly Upwind561.01.0695
Predominantly Downwind520.31.1532
Predominantly Upwind Low745.50.8048
Predominantly Upwind Medium584.01.0273
Predominantly Upwind High546.61.0978
Predominantly Downwind Low724.80.8278
Predominantly Downwind Medium514.51.1661
Predominantly Downwind High435.61.3774
Chicago-Mac Upwind1.0479
Chicago-Mac All Purpose1.0876
Chicago-Mac Downwind1.1322
Bayview-Mac Cove Island1.0142
Bayview-Mac Shore1.0223
Scoring OptionTime On
Distance		Time On
Time
Predominantly Reaching482.81.2428
Predominantly Reaching Low593.81.0105
Predominantly Reaching Medium477.11.2577
Predominantly Reaching High422.11.4216
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low945.90.6343
5-Band Low / Medium790.80.7587
5-Band Medium631.50.9502
5-Band Medium / High575.51.0425
5-Band High550.71.0895
Custom scoring options for Cyprus
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Denmark
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance563.4
Triple Number Coastal/Long Distance Low663.9
Triple Number Coastal/Long Distance Medium511.5
Triple Number Coastal/Long Distance High461.4
Triple Number Windward/Leeward Low865.2
Triple Number Windward/Leeward Medium642.1
Triple Number Windward/Leeward High567.5
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Estonia
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Finland
Scoring OptionTime On
Distance		Time On
Time
FinRating (Coastal/Long Distance)563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for France
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Custom scoring options for Germany
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9038
Triple Number Coastal/Long Distance Medium1.1731
Triple Number Coastal/Long Distance High1.3005
Triple Number Windward/Leeward Low0.6935
Triple Number Windward/Leeward Medium0.9344
Triple Number Windward/Leeward High1.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Greece
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Hungary
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Custom scoring options for Israel
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Japan
Scoring OptionTime On
Distance		Time On
Time
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low663.9
Triple Number Coastal/Long Distance Medium511.5
Triple Number Coastal/Long Distance High461.4
Triple Number Windward/Leeward Low865.2
Triple Number Windward/Leeward Medium642.1
Triple Number Windward/Leeward High567.5
Predominantly Upwind561.0
Predominantly Downwind520.3
Predominantly Reaching495.1
Custom scoring options for Lithuania
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9038
Triple Number Coastal/Long Distance Medium1.1731
Triple Number Coastal/Long Distance High1.3005
Triple Number Windward/Leeward Low0.6935
Triple Number Windward/Leeward Medium0.9344
Triple Number Windward/Leeward High1.0572
Coastal/Long Distance1.0649
Predominantly Upwind1.0695
Predominantly Downwind1.1532
Custom scoring options for Norway
Scoring OptionTime On
Time
Tretall Distanseseilas Lite vind0.9038
Tretall Distanseseilas Mellomvind1.1731
Tretall Distanseseilas Mye vind1.3005
Tretall Pølsebane Lite vind0.6935
Tretall Pølsebane Mellomvind0.9344
Tretall Pølsebane Mye vind1.0572
Distanseseilas ett tall (OSN 8-16kn)1.0649
Distanseseilas ett tall (APH 6-20kn)1.1638
Enkeltall Motvind1.0695
Enkeltall Medvind1.1532
Custom scoring options for Portugal
Scoring OptionTime On
Distance		Time On
Time
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Coastal/Long Distance563.41.0649
Custom scoring options for Russia
Scoring OptionTime On
Distance		Time On
Time
Predominantly Upwind561.01.0695
Predominantly Downwind520.31.1532
Custom scoring options for South Africa
Scoring OptionTime On
Distance		Time On
Time
Cape Doctor Inshore554.21.0826
Cape Doctor Coastal452.71.3253
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9038
Triple Number Coastal/Long Distance Medium1.1731
Triple Number Coastal/Long Distance High1.3005
Triple Number Windward/Leeward Low0.6935
Triple Number Windward/Leeward Medium0.9344
Triple Number Windward/Leeward High1.0572
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.9038
Triple Number Coastal/Long Distance Medium1.1731
Triple Number Coastal/Long Distance High1.3005
Triple Number Windward/Leeward Low0.6935
Triple Number Windward/Leeward Medium0.9344
Triple Number Windward/Leeward High1.0572
Custom scoring options for Sweden
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Predominantly Upwind561.01.0695
Predominantly Downwind520.31.1532
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for Ukraine
Scoring OptionTime On
Distance		Time On
Time
Coastal/Long Distance563.41.0649
Triple Number Coastal/Long Distance Low663.90.9038
Triple Number Coastal/Long Distance Medium511.51.1731
Triple Number Coastal/Long Distance High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Performance Curve6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt
Coastal/Long Distance957.6721.4602.7532.2496.0467.8423.6
Custom scoring options for United States of America
Scoring OptionTime On
Distance		Time On
Time
Triple Number All Purpose Low663.90.9038
Triple Number All Purpose Medium511.51.1731
Triple Number All Purpose High461.41.3005
Triple Number Windward/Leeward Low865.20.6935
Triple Number Windward/Leeward Medium642.10.9344
Triple Number Windward/Leeward High567.51.0572
Predominantly Upwind561.01.0695
Predominantly Downwind520.31.1532
Predominantly Upwind Low745.50.8048
Predominantly Upwind Medium584.01.0273
Predominantly Upwind High546.61.0978
Predominantly Downwind Low724.80.8278
Predominantly Downwind Medium514.51.1661
Predominantly Downwind High435.61.3774
Chicago-Mac Upwind1.0479
Chicago-Mac All Purpose1.0876
Chicago-Mac Downwind1.1322
Bayview-Mac Cove Island1.0142
Bayview-Mac Shore1.0223
Harvest Moon Regatta440.51.3620
Scoring OptionTime On
Distance		Time On
Time
San Francisco Bay Heavy552.31.0864
San Francisco Bay Medium632.90.9481
Predominantly Reaching482.81.2428
Predominantly Reaching Low593.81.0105
Predominantly Reaching Medium477.11.2577
Predominantly Reaching High422.11.4216
Windward/Leeward 60-40 Low872.30.6878
Windward/Leeward 60-40 Medium665.60.9015
Windward/Leeward 60-40 High601.40.9977
5-Band
Windward/Leeward		Time On
Distance		Time On
Time
5-Band Low945.90.6343
5-Band Low / Medium790.80.7587
5-Band Medium631.50.9502
5-Band Medium / High575.51.0425
5-Band High550.71.0895
ORC Ref  03440002ERDIssued on 28/03/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Elbåden Silent Sea

NOR 10804

Norges Seilforbund
Sognsveien 73
0854 OSLO
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassFirst 47.7MeasurementHINPlan reviewHull constructionSolidCarbon RudderNoLight stanchionsNoTrim tabNo
LOA14.500Max. Beam4.512Draft2.289Displacement12,074Wetted area42.16IMS L12.665LSM012.575Acc. length14.500Sink (kg/mm) 32.27
VCGD0.170VCGM0.202RM Rated (kg·m) 327.9Limit of positive stability(°) N/AStability IndexN/A
PROPELLER
Propeller TypeFolding 2 blades
InstallationStrutTwin screwNoHydro generatorNo
PRD0.440PBWPIPA0.0037
EDL1.100ST10.040ST20.140
ST30.140ST40.140ST50.240
RIG
Forestay tensionForwardInner stayNone FittedCarbon mastNoHeadsail furlerNoMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoRunners/Checkstays0Spreaders3Rotating mastNo
P15.860IG16.930ISP17.250MDT10.140MDL10.270MDT20.140MDL20.200TL1.000MW0.270GO0.300
E6.450J5.200BAS1.910FSD0.050SFJ0.000SPL0.000WPLTPS6.300BDMWT0.00MCG0.000
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodVCG entered directlyVCG entered0.170Flotation Date01/01/2015MeasurerComment
SFFP0.520FFMFF1.590LCFcl7.880SG1.0250
SAFP13.746FAMFA1.300LCFsh8.188HBI1.428
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
ORC Ref  03440002ERDIssued on 28/03/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org

Club
Certificate
Double Handed
2023

Boat

Elbåden Silent Sea

NOR 10804

Norges Seilforbund
Sognsveien 73
0854 OSLO
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateComment451-2023032111300.152.062.963.765.1060.9521/03/2023
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateComment306-2021030116290.080.952.254.455.298.0817.30NoYes069.1201/03/20211-2019022212450.100.621.202.483.885.3516.24NoNo 41.8708/01/2019Målt av C.with
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateComment306-20210301091818.1215.2516.6910.4711.7089%149.0001/03/2021G2 2021
ORC Ref  03440002ERDIssued on 28/03/2023Valid until 31/03/2024
VPP ver: 2023 1.02 | © ORC | www.orc.org